maytasm commented on code in PR #19107: URL: https://github.com/apache/druid/pull/19107#discussion_r3171450696
########## extensions-contrib/openlineage-emitter/src/main/java/org/apache/druid/extensions/openlineage/OpenLineageRequestLogger.java: ########## @@ -0,0 +1,654 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.druid.extensions.openlineage; + +import com.fasterxml.jackson.databind.ObjectMapper; +import com.fasterxml.jackson.databind.node.ArrayNode; +import com.fasterxml.jackson.databind.node.ObjectNode; +import org.apache.calcite.avatica.util.Casing; +import org.apache.calcite.avatica.util.Quoting; +import org.apache.calcite.sql.SqlBasicCall; Review Comment: Would these Calcite imports cause issue when loading this extension on nodes without Calcite on the classpath? ########## extensions-contrib/openlineage-emitter/src/main/java/org/apache/druid/extensions/openlineage/OpenLineageRequestLogger.java: ########## @@ -0,0 +1,654 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.druid.extensions.openlineage; + +import com.fasterxml.jackson.databind.ObjectMapper; +import com.fasterxml.jackson.databind.node.ArrayNode; +import com.fasterxml.jackson.databind.node.ObjectNode; +import org.apache.calcite.avatica.util.Casing; +import org.apache.calcite.avatica.util.Quoting; +import org.apache.calcite.sql.SqlBasicCall; +import org.apache.calcite.sql.SqlCall; +import org.apache.calcite.sql.SqlIdentifier; +import org.apache.calcite.sql.SqlInsert; +import org.apache.calcite.sql.SqlJoin; +import org.apache.calcite.sql.SqlKind; +import org.apache.calcite.sql.SqlNode; +import org.apache.calcite.sql.SqlNodeList; +import org.apache.calcite.sql.SqlSelect; +import org.apache.calcite.sql.SqlWith; +import org.apache.calcite.sql.SqlWithItem; +import org.apache.calcite.sql.parser.SqlParseException; +import org.apache.calcite.sql.parser.SqlParser; +import org.apache.druid.java.util.common.concurrent.Execs; +import org.apache.druid.java.util.common.lifecycle.LifecycleStart; +import org.apache.druid.java.util.common.lifecycle.LifecycleStop; +import org.apache.druid.java.util.common.logger.Logger; +import org.apache.druid.query.BaseQuery; +import org.apache.druid.server.RequestLogLine; +import org.apache.druid.server.log.RequestLogger; +import org.apache.druid.utils.CloseableUtils; +import org.apache.http.client.HttpClient; +import org.apache.http.client.methods.HttpPost; +import org.apache.http.entity.ContentType; +import org.apache.http.entity.StringEntity; +import org.apache.http.impl.client.HttpClientBuilder; +import org.apache.http.util.EntityUtils; + +import javax.annotation.Nullable; +import java.io.Closeable; +import java.io.IOException; +import java.nio.charset.StandardCharsets; +import java.util.ArrayList; +import java.util.HashSet; +import java.util.LinkedHashSet; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.UUID; +import java.util.concurrent.ArrayBlockingQueue; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.RejectedExecutionHandler; +import java.util.concurrent.ThreadPoolExecutor; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.atomic.AtomicLong; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +/** + * OpenLineage RunEvents for completed Druid queries. + */ +public class OpenLineageRequestLogger implements RequestLogger +{ + private static final Logger log = new Logger(OpenLineageRequestLogger.class); + + private static final String PRODUCER = + "https://github.com/apache/druid/extensions-contrib/openlineage-emitter";; + private static final String SCHEMA_URL = + "https://openlineage.io/spec/2-0-2/OpenLineage.json";; + private static final String ENGINE_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/1-1-1/ProcessingEngineRunFacet.json";; + private static final String ERROR_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/1-0-0/ErrorMessageRunFacet.json";; + private static final String JOB_TYPE_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/2-0-2/JobTypeJobFacet.json";; + private static final String SQL_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/1-0-1/SQLJobFacet.json";; + + // Standard Calcite parser (not Druid's custom parser): sufficient for table name extraction. + // Druid-specific syntax (REPLACE, EXTERN, etc.) falls through to the SqlParseException handler. + private static final SqlParser.Config SQL_PARSER_CONFIG = SqlParser + .config() + .withCaseSensitive(true) + .withUnquotedCasing(Casing.UNCHANGED) + .withQuotedCasing(Casing.UNCHANGED) + .withQuoting(Quoting.DOUBLE_QUOTE); + + // Matches: INSERT INTO <table> ... (fallback when EXTERN prevents standard Calcite parsing) + // Handles both quoted ("table") and unquoted (table) identifiers. + private static final Pattern INSERT_INTO_PATTERN = + Pattern.compile("(?i)^\\s*INSERT\\s+INTO\\s+\"?([^\"\\s]+)\"?"); + // Matches: REPLACE INTO <table> OVERWRITE ... (Druid-specific, not parseable by standard Calcite) + private static final Pattern REPLACE_INTO_PATTERN = + Pattern.compile("(?i)^\\s*REPLACE\\s+INTO\\s+\"?([^\"\\s]+)\"?"); + // Extracts the SELECT subquery from a REPLACE INTO statement for input lineage + private static final Pattern REPLACE_SELECT_PATTERN = + Pattern.compile("(?is)\\b(SELECT\\s+.+?)(?:\\s+PARTITIONED\\s+BY|\\s+CLUSTERED\\s+BY|$)"); + + static final int DEFAULT_EMIT_QUEUE_CAPACITY = 1000; + static final int DEFAULT_EMIT_THREAD_COUNT = 1; + private static final int DISCARD_WARNING_INTERVAL = 1000; + + static final String UNKNOWN_QUERY_ID = "unknown-query-id"; + + private final ObjectMapper jsonMapper; + private final String namespace; + private final OpenLineageRequestLoggerProvider.TransportType transportType; + @Nullable + private final String transportUrl; + private final Set<String> excludedNativeQueryTypes; + @Nullable + private final HttpClient httpClient; + @Nullable + private final ExecutorService emitExecutor; + private final AtomicLong discardedEventCount = new AtomicLong(0); + + public OpenLineageRequestLogger( + ObjectMapper jsonMapper, + String namespace, + OpenLineageRequestLoggerProvider.TransportType transportType, + @Nullable String transportUrl, + Set<String> excludedNativeQueryTypes + ) + { + this(jsonMapper, namespace, transportType, transportUrl, excludedNativeQueryTypes, + DEFAULT_EMIT_QUEUE_CAPACITY, DEFAULT_EMIT_THREAD_COUNT); + } + + public OpenLineageRequestLogger( + ObjectMapper jsonMapper, + String namespace, + OpenLineageRequestLoggerProvider.TransportType transportType, + @Nullable String transportUrl, + Set<String> excludedNativeQueryTypes, + int emitQueueCapacity, + int emitThreadCount + ) + { + this(jsonMapper, namespace, transportType, transportUrl, excludedNativeQueryTypes, + emitQueueCapacity, emitThreadCount, null); + } + + public OpenLineageRequestLogger( + ObjectMapper jsonMapper, + String namespace, + OpenLineageRequestLoggerProvider.TransportType transportType, + @Nullable String transportUrl, + Set<String> excludedNativeQueryTypes, + int emitQueueCapacity, + int emitThreadCount, + @Nullable HttpClient httpClient + ) + { + this.jsonMapper = jsonMapper; + this.namespace = namespace; + this.transportType = transportType; + this.transportUrl = transportUrl; + this.excludedNativeQueryTypes = excludedNativeQueryTypes; + if (transportType == OpenLineageRequestLoggerProvider.TransportType.HTTP && transportUrl == null) { + throw new IllegalStateException( + "druid.request.logging.transportUrl must be set when transportType=HTTP" + ); + } + if (transportType == OpenLineageRequestLoggerProvider.TransportType.HTTP) { + this.httpClient = httpClient != null ? httpClient : HttpClientBuilder.create().build(); + // Bounded queue: if the queue is full, drop the event rather than blocking the query thread. + // A warning is logged on the first drop and every DISCARD_WARNING_INTERVAL drops thereafter. + this.emitExecutor = new ThreadPoolExecutor( + emitThreadCount, + emitThreadCount, + 60L, + TimeUnit.SECONDS, + new ArrayBlockingQueue<>(emitQueueCapacity), + Execs.makeThreadFactory("OpenLineageEmitter-%d"), + new DiscardWithWarningPolicy(discardedEventCount) + ); + } else { + this.httpClient = null; + this.emitExecutor = null; + } + } + + // Note: ComposingRequestLogger does not delegate @LifecycleStart to sub-loggers, so this method + // may not be called when used in a composing configuration. HTTP URL validation is therefore + // performed in the constructor instead. This method is retained for direct lifecycle use. + @LifecycleStart + @Override + public void start() + { + log.info( + "Started OpenLineage %s transport%s", + transportType, + transportUrl != null ? " to [" + transportUrl + "]" : "" + ); + } + + @LifecycleStop + @Override + public void stop() + { + if (emitExecutor != null) { + emitExecutor.shutdown(); + try { + if (!emitExecutor.awaitTermination(5, TimeUnit.SECONDS)) { + emitExecutor.shutdownNow(); + } + } + catch (InterruptedException e) { + emitExecutor.shutdownNow(); + Thread.currentThread().interrupt(); + } + } + if (httpClient instanceof Closeable) { + CloseableUtils.closeAndSuppressExceptions( + (Closeable) httpClient, + e -> log.warn(e, "Failed to close OpenLineage HTTP client") + ); + } + log.info("Stopped OpenLineage request logger"); + } + + @Override + public void logNativeQuery(RequestLogLine requestLogLine) throws IOException + { + if (requestLogLine.getQuery() == null) { + return; + } + + // Skip native sub-queries of a SQL execution to avoid duplicating the SQL-level event. + if (requestLogLine.getQuery().getContext().get(BaseQuery.SQL_QUERY_ID) != null) { + return; + } + + String queryType = requestLogLine.getQuery().getType(); + + if (excludedNativeQueryTypes.contains(queryType)) { + return; + } + + List<String> inputs = new ArrayList<>(new LinkedHashSet<>(requestLogLine.getQuery().getDataSource().getTableNames())); + String queryId = requestLogLine.getQuery().getId(); + if (queryId == null) { + log.debug("Native query reached OpenLineage logger without a query ID"); + queryId = UNKNOWN_QUERY_ID; + } + + emit(buildRunEvent(queryId, null, queryType, requestLogLine, inputs, null)); + } + + @Override + public void logSqlQuery(RequestLogLine requestLogLine) throws IOException + { + String sql = requestLogLine.getSql(); + List<String> inputs = new ArrayList<>(); + String output = null; + + if (sql != null) { + try { + SqlNode parsed = SqlParser.create(sql, SQL_PARSER_CONFIG).parseQuery(); + inputs = extractInputs(parsed); + output = extractOutput(parsed); + } + catch (SqlParseException e) { + // Druid-specific SQL extensions (REPLACE INTO, EXTERN, etc.) may not parse with the + // standard Calcite parser. Attempt to extract lineage via regex fallback; + // for other unparseable statements, emit the event without table-level lineage. + Matcher insertMatcher = INSERT_INTO_PATTERN.matcher(sql); + if (insertMatcher.find()) { + output = insertMatcher.group(1); + // Also try to extract inputs from the SELECT subquery (handles PARTITIONED BY and + // other Druid-specific clauses that prevent full parsing). EXTERN-sourced inputs + // will fail to re-parse and fall through with empty inputs, which is correct. + Matcher selectMatcher = REPLACE_SELECT_PATTERN.matcher(sql); + if (selectMatcher.find()) { + try { + SqlNode selectNode = SqlParser.create(selectMatcher.group(1), SQL_PARSER_CONFIG).parseQuery(); + inputs = extractInputs(selectNode); + } + catch (SqlParseException ignored) { + // EXTERN or other non-standard sources — inputs left empty + } + } + } + Matcher m = REPLACE_INTO_PATTERN.matcher(sql); Review Comment: This matcher will run even when we already have a match from INSERT_INTO_PATTERN. This is unnecessary since INSERT INTO and REPLACE INTO are mutually exclusive patterns ########## extensions-contrib/openlineage-emitter/src/main/java/org/apache/druid/extensions/openlineage/OpenLineageRequestLoggerProvider.java: ########## @@ -0,0 +1,95 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.druid.extensions.openlineage; + +import com.fasterxml.jackson.annotation.JacksonInject; +import com.fasterxml.jackson.annotation.JsonProperty; +import com.fasterxml.jackson.annotation.JsonTypeName; +import com.fasterxml.jackson.databind.ObjectMapper; +import org.apache.druid.guice.annotations.Json; +import org.apache.druid.java.util.common.logger.Logger; +import org.apache.druid.server.DruidNode; +import org.apache.druid.server.log.RequestLogger; +import org.apache.druid.server.log.RequestLoggerProvider; + +import javax.annotation.Nullable; +import javax.validation.constraints.NotNull; +import java.util.Set; + +/** + * Configure logging type, namespace, transport type (http or default console), transportUrl in {@code runtime.properties} + */ +@JsonTypeName("openlineage") +public class OpenLineageRequestLoggerProvider implements RequestLoggerProvider +{ + private static final Logger log = new Logger(OpenLineageRequestLoggerProvider.class); + + public enum TransportType + { + CONSOLE, + HTTP + } + + @JacksonInject + @Json + @NotNull + private ObjectMapper jsonMapper; + + @JsonProperty + @NotNull + private String namespace = "druid://" + DruidNode.getDefaultHost(); + + @JsonProperty + @NotNull + private TransportType transportType = TransportType.CONSOLE; + + @Nullable + @JsonProperty + private String transportUrl; + + @JsonProperty + @NotNull + private Set<String> excludedNativeQueryTypes = Set.of( + "segmentMetadata", + "dataSourceMetadata", + "timeBoundary" + ); + + @JsonProperty + private int emitQueueCapacity = OpenLineageRequestLogger.DEFAULT_EMIT_QUEUE_CAPACITY; Review Comment: This seems to be configurable but don't see it in the docs ########## extensions-contrib/openlineage-emitter/src/main/java/org/apache/druid/extensions/openlineage/OpenLineageRequestLoggerProvider.java: ########## @@ -0,0 +1,95 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.druid.extensions.openlineage; + +import com.fasterxml.jackson.annotation.JacksonInject; +import com.fasterxml.jackson.annotation.JsonProperty; +import com.fasterxml.jackson.annotation.JsonTypeName; +import com.fasterxml.jackson.databind.ObjectMapper; +import org.apache.druid.guice.annotations.Json; +import org.apache.druid.java.util.common.logger.Logger; +import org.apache.druid.server.DruidNode; +import org.apache.druid.server.log.RequestLogger; +import org.apache.druid.server.log.RequestLoggerProvider; + +import javax.annotation.Nullable; +import javax.validation.constraints.NotNull; +import java.util.Set; + +/** + * Configure logging type, namespace, transport type (http or default console), transportUrl in {@code runtime.properties} + */ +@JsonTypeName("openlineage") +public class OpenLineageRequestLoggerProvider implements RequestLoggerProvider +{ + private static final Logger log = new Logger(OpenLineageRequestLoggerProvider.class); + + public enum TransportType + { + CONSOLE, + HTTP + } + + @JacksonInject + @Json + @NotNull + private ObjectMapper jsonMapper; + + @JsonProperty + @NotNull + private String namespace = "druid://" + DruidNode.getDefaultHost(); + + @JsonProperty + @NotNull + private TransportType transportType = TransportType.CONSOLE; + + @Nullable + @JsonProperty + private String transportUrl; + + @JsonProperty + @NotNull + private Set<String> excludedNativeQueryTypes = Set.of( + "segmentMetadata", + "dataSourceMetadata", + "timeBoundary" + ); + + @JsonProperty + private int emitQueueCapacity = OpenLineageRequestLogger.DEFAULT_EMIT_QUEUE_CAPACITY; + + @JsonProperty + private int emitThreadCount = OpenLineageRequestLogger.DEFAULT_EMIT_THREAD_COUNT; Review Comment: This seems to be configurable but don't see it in the docs ########## extensions-contrib/openlineage-emitter/src/main/java/org/apache/druid/extensions/openlineage/OpenLineageRequestLogger.java: ########## @@ -0,0 +1,654 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.druid.extensions.openlineage; + +import com.fasterxml.jackson.databind.ObjectMapper; +import com.fasterxml.jackson.databind.node.ArrayNode; +import com.fasterxml.jackson.databind.node.ObjectNode; +import org.apache.calcite.avatica.util.Casing; +import org.apache.calcite.avatica.util.Quoting; +import org.apache.calcite.sql.SqlBasicCall; +import org.apache.calcite.sql.SqlCall; +import org.apache.calcite.sql.SqlIdentifier; +import org.apache.calcite.sql.SqlInsert; +import org.apache.calcite.sql.SqlJoin; +import org.apache.calcite.sql.SqlKind; +import org.apache.calcite.sql.SqlNode; +import org.apache.calcite.sql.SqlNodeList; +import org.apache.calcite.sql.SqlSelect; +import org.apache.calcite.sql.SqlWith; +import org.apache.calcite.sql.SqlWithItem; +import org.apache.calcite.sql.parser.SqlParseException; +import org.apache.calcite.sql.parser.SqlParser; +import org.apache.druid.java.util.common.concurrent.Execs; +import org.apache.druid.java.util.common.lifecycle.LifecycleStart; +import org.apache.druid.java.util.common.lifecycle.LifecycleStop; +import org.apache.druid.java.util.common.logger.Logger; +import org.apache.druid.query.BaseQuery; +import org.apache.druid.server.RequestLogLine; +import org.apache.druid.server.log.RequestLogger; +import org.apache.druid.utils.CloseableUtils; +import org.apache.http.client.HttpClient; +import org.apache.http.client.methods.HttpPost; +import org.apache.http.entity.ContentType; +import org.apache.http.entity.StringEntity; +import org.apache.http.impl.client.HttpClientBuilder; +import org.apache.http.util.EntityUtils; + +import javax.annotation.Nullable; +import java.io.Closeable; +import java.io.IOException; +import java.nio.charset.StandardCharsets; +import java.util.ArrayList; +import java.util.HashSet; +import java.util.LinkedHashSet; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.UUID; +import java.util.concurrent.ArrayBlockingQueue; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.RejectedExecutionHandler; +import java.util.concurrent.ThreadPoolExecutor; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.atomic.AtomicLong; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +/** + * OpenLineage RunEvents for completed Druid queries. + */ +public class OpenLineageRequestLogger implements RequestLogger +{ + private static final Logger log = new Logger(OpenLineageRequestLogger.class); + + private static final String PRODUCER = + "https://github.com/apache/druid/extensions-contrib/openlineage-emitter";; + private static final String SCHEMA_URL = + "https://openlineage.io/spec/2-0-2/OpenLineage.json";; + private static final String ENGINE_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/1-1-1/ProcessingEngineRunFacet.json";; + private static final String ERROR_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/1-0-0/ErrorMessageRunFacet.json";; + private static final String JOB_TYPE_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/2-0-2/JobTypeJobFacet.json";; + private static final String SQL_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/1-0-1/SQLJobFacet.json";; + + // Standard Calcite parser (not Druid's custom parser): sufficient for table name extraction. + // Druid-specific syntax (REPLACE, EXTERN, etc.) falls through to the SqlParseException handler. + private static final SqlParser.Config SQL_PARSER_CONFIG = SqlParser + .config() + .withCaseSensitive(true) + .withUnquotedCasing(Casing.UNCHANGED) + .withQuotedCasing(Casing.UNCHANGED) + .withQuoting(Quoting.DOUBLE_QUOTE); + + // Matches: INSERT INTO <table> ... (fallback when EXTERN prevents standard Calcite parsing) + // Handles both quoted ("table") and unquoted (table) identifiers. + private static final Pattern INSERT_INTO_PATTERN = + Pattern.compile("(?i)^\\s*INSERT\\s+INTO\\s+\"?([^\"\\s]+)\"?"); + // Matches: REPLACE INTO <table> OVERWRITE ... (Druid-specific, not parseable by standard Calcite) + private static final Pattern REPLACE_INTO_PATTERN = + Pattern.compile("(?i)^\\s*REPLACE\\s+INTO\\s+\"?([^\"\\s]+)\"?"); + // Extracts the SELECT subquery from a REPLACE INTO statement for input lineage + private static final Pattern REPLACE_SELECT_PATTERN = + Pattern.compile("(?is)\\b(SELECT\\s+.+?)(?:\\s+PARTITIONED\\s+BY|\\s+CLUSTERED\\s+BY|$)"); + + static final int DEFAULT_EMIT_QUEUE_CAPACITY = 1000; + static final int DEFAULT_EMIT_THREAD_COUNT = 1; + private static final int DISCARD_WARNING_INTERVAL = 1000; + + static final String UNKNOWN_QUERY_ID = "unknown-query-id"; + + private final ObjectMapper jsonMapper; + private final String namespace; + private final OpenLineageRequestLoggerProvider.TransportType transportType; + @Nullable + private final String transportUrl; + private final Set<String> excludedNativeQueryTypes; + @Nullable + private final HttpClient httpClient; + @Nullable + private final ExecutorService emitExecutor; + private final AtomicLong discardedEventCount = new AtomicLong(0); + + public OpenLineageRequestLogger( + ObjectMapper jsonMapper, + String namespace, + OpenLineageRequestLoggerProvider.TransportType transportType, + @Nullable String transportUrl, + Set<String> excludedNativeQueryTypes + ) + { + this(jsonMapper, namespace, transportType, transportUrl, excludedNativeQueryTypes, + DEFAULT_EMIT_QUEUE_CAPACITY, DEFAULT_EMIT_THREAD_COUNT); + } + + public OpenLineageRequestLogger( + ObjectMapper jsonMapper, + String namespace, + OpenLineageRequestLoggerProvider.TransportType transportType, + @Nullable String transportUrl, + Set<String> excludedNativeQueryTypes, + int emitQueueCapacity, + int emitThreadCount + ) + { + this(jsonMapper, namespace, transportType, transportUrl, excludedNativeQueryTypes, + emitQueueCapacity, emitThreadCount, null); + } + + public OpenLineageRequestLogger( + ObjectMapper jsonMapper, + String namespace, + OpenLineageRequestLoggerProvider.TransportType transportType, + @Nullable String transportUrl, + Set<String> excludedNativeQueryTypes, + int emitQueueCapacity, + int emitThreadCount, + @Nullable HttpClient httpClient + ) + { + this.jsonMapper = jsonMapper; + this.namespace = namespace; + this.transportType = transportType; + this.transportUrl = transportUrl; + this.excludedNativeQueryTypes = excludedNativeQueryTypes; + if (transportType == OpenLineageRequestLoggerProvider.TransportType.HTTP && transportUrl == null) { + throw new IllegalStateException( + "druid.request.logging.transportUrl must be set when transportType=HTTP" + ); + } + if (transportType == OpenLineageRequestLoggerProvider.TransportType.HTTP) { + this.httpClient = httpClient != null ? httpClient : HttpClientBuilder.create().build(); + // Bounded queue: if the queue is full, drop the event rather than blocking the query thread. + // A warning is logged on the first drop and every DISCARD_WARNING_INTERVAL drops thereafter. + this.emitExecutor = new ThreadPoolExecutor( + emitThreadCount, + emitThreadCount, + 60L, + TimeUnit.SECONDS, + new ArrayBlockingQueue<>(emitQueueCapacity), + Execs.makeThreadFactory("OpenLineageEmitter-%d"), + new DiscardWithWarningPolicy(discardedEventCount) + ); + } else { + this.httpClient = null; + this.emitExecutor = null; + } + } + + // Note: ComposingRequestLogger does not delegate @LifecycleStart to sub-loggers, so this method + // may not be called when used in a composing configuration. HTTP URL validation is therefore + // performed in the constructor instead. This method is retained for direct lifecycle use. + @LifecycleStart + @Override + public void start() + { + log.info( + "Started OpenLineage %s transport%s", + transportType, + transportUrl != null ? " to [" + transportUrl + "]" : "" + ); + } + + @LifecycleStop + @Override + public void stop() + { + if (emitExecutor != null) { + emitExecutor.shutdown(); + try { + if (!emitExecutor.awaitTermination(5, TimeUnit.SECONDS)) { + emitExecutor.shutdownNow(); + } + } + catch (InterruptedException e) { + emitExecutor.shutdownNow(); + Thread.currentThread().interrupt(); + } + } + if (httpClient instanceof Closeable) { + CloseableUtils.closeAndSuppressExceptions( + (Closeable) httpClient, + e -> log.warn(e, "Failed to close OpenLineage HTTP client") + ); + } + log.info("Stopped OpenLineage request logger"); + } + + @Override + public void logNativeQuery(RequestLogLine requestLogLine) throws IOException + { + if (requestLogLine.getQuery() == null) { + return; + } + + // Skip native sub-queries of a SQL execution to avoid duplicating the SQL-level event. + if (requestLogLine.getQuery().getContext().get(BaseQuery.SQL_QUERY_ID) != null) { + return; + } + + String queryType = requestLogLine.getQuery().getType(); + + if (excludedNativeQueryTypes.contains(queryType)) { + return; + } + + List<String> inputs = new ArrayList<>(new LinkedHashSet<>(requestLogLine.getQuery().getDataSource().getTableNames())); + String queryId = requestLogLine.getQuery().getId(); + if (queryId == null) { + log.debug("Native query reached OpenLineage logger without a query ID"); + queryId = UNKNOWN_QUERY_ID; + } + + emit(buildRunEvent(queryId, null, queryType, requestLogLine, inputs, null)); + } + + @Override + public void logSqlQuery(RequestLogLine requestLogLine) throws IOException + { + String sql = requestLogLine.getSql(); + List<String> inputs = new ArrayList<>(); + String output = null; + + if (sql != null) { + try { + SqlNode parsed = SqlParser.create(sql, SQL_PARSER_CONFIG).parseQuery(); + inputs = extractInputs(parsed); + output = extractOutput(parsed); + } + catch (SqlParseException e) { + // Druid-specific SQL extensions (REPLACE INTO, EXTERN, etc.) may not parse with the + // standard Calcite parser. Attempt to extract lineage via regex fallback; + // for other unparseable statements, emit the event without table-level lineage. + Matcher insertMatcher = INSERT_INTO_PATTERN.matcher(sql); + if (insertMatcher.find()) { + output = insertMatcher.group(1); + // Also try to extract inputs from the SELECT subquery (handles PARTITIONED BY and + // other Druid-specific clauses that prevent full parsing). EXTERN-sourced inputs + // will fail to re-parse and fall through with empty inputs, which is correct. + Matcher selectMatcher = REPLACE_SELECT_PATTERN.matcher(sql); + if (selectMatcher.find()) { + try { + SqlNode selectNode = SqlParser.create(selectMatcher.group(1), SQL_PARSER_CONFIG).parseQuery(); + inputs = extractInputs(selectNode); + } + catch (SqlParseException ignored) { + // EXTERN or other non-standard sources — inputs left empty + } + } + } + Matcher m = REPLACE_INTO_PATTERN.matcher(sql); + if (m.find()) { + output = m.group(1); + Matcher selectMatcher = REPLACE_SELECT_PATTERN.matcher(sql); + if (selectMatcher.find()) { + try { + SqlNode selectNode = SqlParser.create(selectMatcher.group(1), SQL_PARSER_CONFIG).parseQuery(); + inputs = extractInputs(selectNode); + } + catch (SqlParseException ignored) { + // fall through with empty inputs + } + } + } + log.debug( + "OpenLineage: could not parse SQL with standard Calcite parser (query will still be emitted): %s", + e.getMessage() + ); + } + } + + String queryId = extractSqlQueryId(requestLogLine); + emit(buildRunEvent(queryId, sql, "sql", requestLogLine, new ArrayList<>(new LinkedHashSet<>(inputs)), output)); + } + + private ObjectNode buildRunEvent( + String queryId, + @Nullable String sql, + String queryType, + RequestLogLine requestLogLine, + List<String> inputs, + @Nullable String output + ) + { + Map<String, Object> stats = requestLogLine.getQueryStats().getStats(); + boolean success = Boolean.TRUE.equals(stats.get("success")); + + ObjectNode event = jsonMapper.createObjectNode(); + event.put("eventType", success ? "COMPLETE" : "FAIL"); + event.put("eventTime", requestLogLine.getTimestamp().toInstant().toString()); + event.put("producer", PRODUCER); + event.put("schemaURL", SCHEMA_URL); + event.set("run", buildRun(queryId, queryType, requestLogLine, stats, success)); + event.set("job", buildJob(queryId, sql)); + event.set("inputs", buildDatasets(inputs)); + event.set("outputs", buildDatasets(output != null ? List.of(output) : List.of())); + return event; + } + + private ObjectNode buildRun( + String queryId, + String queryType, + RequestLogLine requestLogLine, + Map<String, Object> stats, + boolean success + ) + { + ObjectNode run = jsonMapper.createObjectNode(); + run.put("runId", UUID.nameUUIDFromBytes(queryId.getBytes(StandardCharsets.UTF_8)).toString()); + + ObjectNode facets = jsonMapper.createObjectNode(); + + ObjectNode engineFacet = createFacet(ENGINE_FACET_SCHEMA_URL); + engineFacet.put("name", "druid"); + engineFacet.put("version", getDruidVersion()); + facets.set("processing_engine", engineFacet); + + ObjectNode contextFacet = createFacet(null); + contextFacet.put("queryType", queryType); + contextFacet.put("remoteAddress", requestLogLine.getRemoteAddr()); + Object identity = stats.get("identity"); + if (identity != null) { + contextFacet.put("identity", identity.toString()); + } + Object nativeQueryIds = requestLogLine.getSqlQueryContext().get("nativeQueryIds"); Review Comment: getSqlQueryContext is Nullable ########## extensions-contrib/openlineage-emitter/src/main/java/org/apache/druid/extensions/openlineage/OpenLineageRequestLogger.java: ########## @@ -0,0 +1,654 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.druid.extensions.openlineage; + +import com.fasterxml.jackson.databind.ObjectMapper; +import com.fasterxml.jackson.databind.node.ArrayNode; +import com.fasterxml.jackson.databind.node.ObjectNode; +import org.apache.calcite.avatica.util.Casing; +import org.apache.calcite.avatica.util.Quoting; +import org.apache.calcite.sql.SqlBasicCall; +import org.apache.calcite.sql.SqlCall; +import org.apache.calcite.sql.SqlIdentifier; +import org.apache.calcite.sql.SqlInsert; +import org.apache.calcite.sql.SqlJoin; +import org.apache.calcite.sql.SqlKind; +import org.apache.calcite.sql.SqlNode; +import org.apache.calcite.sql.SqlNodeList; +import org.apache.calcite.sql.SqlSelect; +import org.apache.calcite.sql.SqlWith; +import org.apache.calcite.sql.SqlWithItem; +import org.apache.calcite.sql.parser.SqlParseException; +import org.apache.calcite.sql.parser.SqlParser; +import org.apache.druid.java.util.common.concurrent.Execs; +import org.apache.druid.java.util.common.lifecycle.LifecycleStart; +import org.apache.druid.java.util.common.lifecycle.LifecycleStop; +import org.apache.druid.java.util.common.logger.Logger; +import org.apache.druid.query.BaseQuery; +import org.apache.druid.server.RequestLogLine; +import org.apache.druid.server.log.RequestLogger; +import org.apache.druid.utils.CloseableUtils; +import org.apache.http.client.HttpClient; +import org.apache.http.client.methods.HttpPost; +import org.apache.http.entity.ContentType; +import org.apache.http.entity.StringEntity; +import org.apache.http.impl.client.HttpClientBuilder; +import org.apache.http.util.EntityUtils; + +import javax.annotation.Nullable; +import java.io.Closeable; +import java.io.IOException; +import java.nio.charset.StandardCharsets; +import java.util.ArrayList; +import java.util.HashSet; +import java.util.LinkedHashSet; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.UUID; +import java.util.concurrent.ArrayBlockingQueue; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.RejectedExecutionHandler; +import java.util.concurrent.ThreadPoolExecutor; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.atomic.AtomicLong; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +/** + * OpenLineage RunEvents for completed Druid queries. + */ +public class OpenLineageRequestLogger implements RequestLogger +{ + private static final Logger log = new Logger(OpenLineageRequestLogger.class); + + private static final String PRODUCER = + "https://github.com/apache/druid/extensions-contrib/openlineage-emitter";; + private static final String SCHEMA_URL = + "https://openlineage.io/spec/2-0-2/OpenLineage.json";; + private static final String ENGINE_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/1-1-1/ProcessingEngineRunFacet.json";; + private static final String ERROR_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/1-0-0/ErrorMessageRunFacet.json";; + private static final String JOB_TYPE_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/2-0-2/JobTypeJobFacet.json";; + private static final String SQL_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/1-0-1/SQLJobFacet.json";; + + // Standard Calcite parser (not Druid's custom parser): sufficient for table name extraction. + // Druid-specific syntax (REPLACE, EXTERN, etc.) falls through to the SqlParseException handler. + private static final SqlParser.Config SQL_PARSER_CONFIG = SqlParser + .config() + .withCaseSensitive(true) + .withUnquotedCasing(Casing.UNCHANGED) + .withQuotedCasing(Casing.UNCHANGED) + .withQuoting(Quoting.DOUBLE_QUOTE); + + // Matches: INSERT INTO <table> ... (fallback when EXTERN prevents standard Calcite parsing) + // Handles both quoted ("table") and unquoted (table) identifiers. + private static final Pattern INSERT_INTO_PATTERN = + Pattern.compile("(?i)^\\s*INSERT\\s+INTO\\s+\"?([^\"\\s]+)\"?"); + // Matches: REPLACE INTO <table> OVERWRITE ... (Druid-specific, not parseable by standard Calcite) + private static final Pattern REPLACE_INTO_PATTERN = + Pattern.compile("(?i)^\\s*REPLACE\\s+INTO\\s+\"?([^\"\\s]+)\"?"); + // Extracts the SELECT subquery from a REPLACE INTO statement for input lineage + private static final Pattern REPLACE_SELECT_PATTERN = + Pattern.compile("(?is)\\b(SELECT\\s+.+?)(?:\\s+PARTITIONED\\s+BY|\\s+CLUSTERED\\s+BY|$)"); + + static final int DEFAULT_EMIT_QUEUE_CAPACITY = 1000; + static final int DEFAULT_EMIT_THREAD_COUNT = 1; + private static final int DISCARD_WARNING_INTERVAL = 1000; + + static final String UNKNOWN_QUERY_ID = "unknown-query-id"; + + private final ObjectMapper jsonMapper; + private final String namespace; + private final OpenLineageRequestLoggerProvider.TransportType transportType; + @Nullable + private final String transportUrl; + private final Set<String> excludedNativeQueryTypes; + @Nullable + private final HttpClient httpClient; + @Nullable + private final ExecutorService emitExecutor; + private final AtomicLong discardedEventCount = new AtomicLong(0); + + public OpenLineageRequestLogger( + ObjectMapper jsonMapper, + String namespace, + OpenLineageRequestLoggerProvider.TransportType transportType, + @Nullable String transportUrl, + Set<String> excludedNativeQueryTypes + ) + { + this(jsonMapper, namespace, transportType, transportUrl, excludedNativeQueryTypes, + DEFAULT_EMIT_QUEUE_CAPACITY, DEFAULT_EMIT_THREAD_COUNT); + } + + public OpenLineageRequestLogger( + ObjectMapper jsonMapper, + String namespace, + OpenLineageRequestLoggerProvider.TransportType transportType, + @Nullable String transportUrl, + Set<String> excludedNativeQueryTypes, + int emitQueueCapacity, + int emitThreadCount + ) + { + this(jsonMapper, namespace, transportType, transportUrl, excludedNativeQueryTypes, + emitQueueCapacity, emitThreadCount, null); + } + + public OpenLineageRequestLogger( + ObjectMapper jsonMapper, + String namespace, + OpenLineageRequestLoggerProvider.TransportType transportType, + @Nullable String transportUrl, + Set<String> excludedNativeQueryTypes, + int emitQueueCapacity, + int emitThreadCount, + @Nullable HttpClient httpClient + ) + { + this.jsonMapper = jsonMapper; + this.namespace = namespace; + this.transportType = transportType; + this.transportUrl = transportUrl; + this.excludedNativeQueryTypes = excludedNativeQueryTypes; + if (transportType == OpenLineageRequestLoggerProvider.TransportType.HTTP && transportUrl == null) { + throw new IllegalStateException( + "druid.request.logging.transportUrl must be set when transportType=HTTP" + ); + } + if (transportType == OpenLineageRequestLoggerProvider.TransportType.HTTP) { + this.httpClient = httpClient != null ? httpClient : HttpClientBuilder.create().build(); Review Comment: Might also want to make properties like trustStorePath, trustStorePassword, keyStorePath, keyStorePassword configurable. Something similar to InfluxdbEmitterConfig ########## extensions-contrib/openlineage-emitter/src/main/java/org/apache/druid/extensions/openlineage/OpenLineageRequestLogger.java: ########## @@ -0,0 +1,654 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.druid.extensions.openlineage; + +import com.fasterxml.jackson.databind.ObjectMapper; +import com.fasterxml.jackson.databind.node.ArrayNode; +import com.fasterxml.jackson.databind.node.ObjectNode; +import org.apache.calcite.avatica.util.Casing; +import org.apache.calcite.avatica.util.Quoting; +import org.apache.calcite.sql.SqlBasicCall; +import org.apache.calcite.sql.SqlCall; +import org.apache.calcite.sql.SqlIdentifier; +import org.apache.calcite.sql.SqlInsert; +import org.apache.calcite.sql.SqlJoin; +import org.apache.calcite.sql.SqlKind; +import org.apache.calcite.sql.SqlNode; +import org.apache.calcite.sql.SqlNodeList; +import org.apache.calcite.sql.SqlSelect; +import org.apache.calcite.sql.SqlWith; +import org.apache.calcite.sql.SqlWithItem; +import org.apache.calcite.sql.parser.SqlParseException; +import org.apache.calcite.sql.parser.SqlParser; +import org.apache.druid.java.util.common.concurrent.Execs; +import org.apache.druid.java.util.common.lifecycle.LifecycleStart; +import org.apache.druid.java.util.common.lifecycle.LifecycleStop; +import org.apache.druid.java.util.common.logger.Logger; +import org.apache.druid.query.BaseQuery; +import org.apache.druid.server.RequestLogLine; +import org.apache.druid.server.log.RequestLogger; +import org.apache.druid.utils.CloseableUtils; +import org.apache.http.client.HttpClient; +import org.apache.http.client.methods.HttpPost; +import org.apache.http.entity.ContentType; +import org.apache.http.entity.StringEntity; +import org.apache.http.impl.client.HttpClientBuilder; +import org.apache.http.util.EntityUtils; + +import javax.annotation.Nullable; +import java.io.Closeable; +import java.io.IOException; +import java.nio.charset.StandardCharsets; +import java.util.ArrayList; +import java.util.HashSet; +import java.util.LinkedHashSet; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.UUID; +import java.util.concurrent.ArrayBlockingQueue; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.RejectedExecutionHandler; +import java.util.concurrent.ThreadPoolExecutor; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.atomic.AtomicLong; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +/** + * OpenLineage RunEvents for completed Druid queries. + */ +public class OpenLineageRequestLogger implements RequestLogger +{ + private static final Logger log = new Logger(OpenLineageRequestLogger.class); + + private static final String PRODUCER = + "https://github.com/apache/druid/extensions-contrib/openlineage-emitter";; + private static final String SCHEMA_URL = + "https://openlineage.io/spec/2-0-2/OpenLineage.json";; + private static final String ENGINE_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/1-1-1/ProcessingEngineRunFacet.json";; + private static final String ERROR_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/1-0-0/ErrorMessageRunFacet.json";; + private static final String JOB_TYPE_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/2-0-2/JobTypeJobFacet.json";; + private static final String SQL_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/1-0-1/SQLJobFacet.json";; + + // Standard Calcite parser (not Druid's custom parser): sufficient for table name extraction. + // Druid-specific syntax (REPLACE, EXTERN, etc.) falls through to the SqlParseException handler. + private static final SqlParser.Config SQL_PARSER_CONFIG = SqlParser + .config() + .withCaseSensitive(true) + .withUnquotedCasing(Casing.UNCHANGED) + .withQuotedCasing(Casing.UNCHANGED) + .withQuoting(Quoting.DOUBLE_QUOTE); + + // Matches: INSERT INTO <table> ... (fallback when EXTERN prevents standard Calcite parsing) + // Handles both quoted ("table") and unquoted (table) identifiers. + private static final Pattern INSERT_INTO_PATTERN = + Pattern.compile("(?i)^\\s*INSERT\\s+INTO\\s+\"?([^\"\\s]+)\"?"); + // Matches: REPLACE INTO <table> OVERWRITE ... (Druid-specific, not parseable by standard Calcite) + private static final Pattern REPLACE_INTO_PATTERN = + Pattern.compile("(?i)^\\s*REPLACE\\s+INTO\\s+\"?([^\"\\s]+)\"?"); + // Extracts the SELECT subquery from a REPLACE INTO statement for input lineage + private static final Pattern REPLACE_SELECT_PATTERN = + Pattern.compile("(?is)\\b(SELECT\\s+.+?)(?:\\s+PARTITIONED\\s+BY|\\s+CLUSTERED\\s+BY|$)"); + + static final int DEFAULT_EMIT_QUEUE_CAPACITY = 1000; + static final int DEFAULT_EMIT_THREAD_COUNT = 1; + private static final int DISCARD_WARNING_INTERVAL = 1000; + + static final String UNKNOWN_QUERY_ID = "unknown-query-id"; + + private final ObjectMapper jsonMapper; + private final String namespace; + private final OpenLineageRequestLoggerProvider.TransportType transportType; + @Nullable + private final String transportUrl; + private final Set<String> excludedNativeQueryTypes; + @Nullable + private final HttpClient httpClient; + @Nullable + private final ExecutorService emitExecutor; + private final AtomicLong discardedEventCount = new AtomicLong(0); + + public OpenLineageRequestLogger( + ObjectMapper jsonMapper, + String namespace, + OpenLineageRequestLoggerProvider.TransportType transportType, + @Nullable String transportUrl, + Set<String> excludedNativeQueryTypes + ) + { + this(jsonMapper, namespace, transportType, transportUrl, excludedNativeQueryTypes, + DEFAULT_EMIT_QUEUE_CAPACITY, DEFAULT_EMIT_THREAD_COUNT); + } + + public OpenLineageRequestLogger( + ObjectMapper jsonMapper, + String namespace, + OpenLineageRequestLoggerProvider.TransportType transportType, + @Nullable String transportUrl, + Set<String> excludedNativeQueryTypes, + int emitQueueCapacity, + int emitThreadCount + ) + { + this(jsonMapper, namespace, transportType, transportUrl, excludedNativeQueryTypes, + emitQueueCapacity, emitThreadCount, null); + } + + public OpenLineageRequestLogger( + ObjectMapper jsonMapper, + String namespace, + OpenLineageRequestLoggerProvider.TransportType transportType, + @Nullable String transportUrl, + Set<String> excludedNativeQueryTypes, + int emitQueueCapacity, + int emitThreadCount, + @Nullable HttpClient httpClient + ) + { + this.jsonMapper = jsonMapper; + this.namespace = namespace; + this.transportType = transportType; + this.transportUrl = transportUrl; + this.excludedNativeQueryTypes = excludedNativeQueryTypes; + if (transportType == OpenLineageRequestLoggerProvider.TransportType.HTTP && transportUrl == null) { + throw new IllegalStateException( + "druid.request.logging.transportUrl must be set when transportType=HTTP" + ); + } + if (transportType == OpenLineageRequestLoggerProvider.TransportType.HTTP) { + this.httpClient = httpClient != null ? httpClient : HttpClientBuilder.create().build(); Review Comment: Generally best practice to be able to set and have reasonable defaults for socket, connection, Connection Request timeouts ########## extensions-contrib/openlineage-emitter/src/main/java/org/apache/druid/extensions/openlineage/OpenLineageRequestLogger.java: ########## @@ -0,0 +1,654 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.druid.extensions.openlineage; + +import com.fasterxml.jackson.databind.ObjectMapper; +import com.fasterxml.jackson.databind.node.ArrayNode; +import com.fasterxml.jackson.databind.node.ObjectNode; +import org.apache.calcite.avatica.util.Casing; +import org.apache.calcite.avatica.util.Quoting; +import org.apache.calcite.sql.SqlBasicCall; +import org.apache.calcite.sql.SqlCall; +import org.apache.calcite.sql.SqlIdentifier; +import org.apache.calcite.sql.SqlInsert; +import org.apache.calcite.sql.SqlJoin; +import org.apache.calcite.sql.SqlKind; +import org.apache.calcite.sql.SqlNode; +import org.apache.calcite.sql.SqlNodeList; +import org.apache.calcite.sql.SqlSelect; +import org.apache.calcite.sql.SqlWith; +import org.apache.calcite.sql.SqlWithItem; +import org.apache.calcite.sql.parser.SqlParseException; +import org.apache.calcite.sql.parser.SqlParser; +import org.apache.druid.java.util.common.concurrent.Execs; +import org.apache.druid.java.util.common.lifecycle.LifecycleStart; +import org.apache.druid.java.util.common.lifecycle.LifecycleStop; +import org.apache.druid.java.util.common.logger.Logger; +import org.apache.druid.query.BaseQuery; +import org.apache.druid.server.RequestLogLine; +import org.apache.druid.server.log.RequestLogger; +import org.apache.druid.utils.CloseableUtils; +import org.apache.http.client.HttpClient; +import org.apache.http.client.methods.HttpPost; +import org.apache.http.entity.ContentType; +import org.apache.http.entity.StringEntity; +import org.apache.http.impl.client.HttpClientBuilder; +import org.apache.http.util.EntityUtils; + +import javax.annotation.Nullable; +import java.io.Closeable; +import java.io.IOException; +import java.nio.charset.StandardCharsets; +import java.util.ArrayList; +import java.util.HashSet; +import java.util.LinkedHashSet; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.UUID; +import java.util.concurrent.ArrayBlockingQueue; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.RejectedExecutionHandler; +import java.util.concurrent.ThreadPoolExecutor; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.atomic.AtomicLong; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +/** + * OpenLineage RunEvents for completed Druid queries. + */ +public class OpenLineageRequestLogger implements RequestLogger +{ + private static final Logger log = new Logger(OpenLineageRequestLogger.class); + + private static final String PRODUCER = + "https://github.com/apache/druid/extensions-contrib/openlineage-emitter";; + private static final String SCHEMA_URL = + "https://openlineage.io/spec/2-0-2/OpenLineage.json";; + private static final String ENGINE_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/1-1-1/ProcessingEngineRunFacet.json";; + private static final String ERROR_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/1-0-0/ErrorMessageRunFacet.json";; + private static final String JOB_TYPE_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/2-0-2/JobTypeJobFacet.json";; + private static final String SQL_FACET_SCHEMA_URL = + "https://openlineage.io/spec/facets/1-0-1/SQLJobFacet.json";; + + // Standard Calcite parser (not Druid's custom parser): sufficient for table name extraction. + // Druid-specific syntax (REPLACE, EXTERN, etc.) falls through to the SqlParseException handler. + private static final SqlParser.Config SQL_PARSER_CONFIG = SqlParser + .config() + .withCaseSensitive(true) + .withUnquotedCasing(Casing.UNCHANGED) + .withQuotedCasing(Casing.UNCHANGED) + .withQuoting(Quoting.DOUBLE_QUOTE); + + // Matches: INSERT INTO <table> ... (fallback when EXTERN prevents standard Calcite parsing) + // Handles both quoted ("table") and unquoted (table) identifiers. + private static final Pattern INSERT_INTO_PATTERN = + Pattern.compile("(?i)^\\s*INSERT\\s+INTO\\s+\"?([^\"\\s]+)\"?"); + // Matches: REPLACE INTO <table> OVERWRITE ... (Druid-specific, not parseable by standard Calcite) + private static final Pattern REPLACE_INTO_PATTERN = + Pattern.compile("(?i)^\\s*REPLACE\\s+INTO\\s+\"?([^\"\\s]+)\"?"); + // Extracts the SELECT subquery from a REPLACE INTO statement for input lineage + private static final Pattern REPLACE_SELECT_PATTERN = + Pattern.compile("(?is)\\b(SELECT\\s+.+?)(?:\\s+PARTITIONED\\s+BY|\\s+CLUSTERED\\s+BY|$)"); + + static final int DEFAULT_EMIT_QUEUE_CAPACITY = 1000; + static final int DEFAULT_EMIT_THREAD_COUNT = 1; + private static final int DISCARD_WARNING_INTERVAL = 1000; + + static final String UNKNOWN_QUERY_ID = "unknown-query-id"; + + private final ObjectMapper jsonMapper; + private final String namespace; + private final OpenLineageRequestLoggerProvider.TransportType transportType; + @Nullable + private final String transportUrl; + private final Set<String> excludedNativeQueryTypes; + @Nullable + private final HttpClient httpClient; + @Nullable + private final ExecutorService emitExecutor; + private final AtomicLong discardedEventCount = new AtomicLong(0); + + public OpenLineageRequestLogger( + ObjectMapper jsonMapper, + String namespace, + OpenLineageRequestLoggerProvider.TransportType transportType, + @Nullable String transportUrl, + Set<String> excludedNativeQueryTypes + ) + { + this(jsonMapper, namespace, transportType, transportUrl, excludedNativeQueryTypes, + DEFAULT_EMIT_QUEUE_CAPACITY, DEFAULT_EMIT_THREAD_COUNT); + } + + public OpenLineageRequestLogger( + ObjectMapper jsonMapper, + String namespace, + OpenLineageRequestLoggerProvider.TransportType transportType, + @Nullable String transportUrl, + Set<String> excludedNativeQueryTypes, + int emitQueueCapacity, + int emitThreadCount + ) + { + this(jsonMapper, namespace, transportType, transportUrl, excludedNativeQueryTypes, + emitQueueCapacity, emitThreadCount, null); + } + + public OpenLineageRequestLogger( + ObjectMapper jsonMapper, + String namespace, + OpenLineageRequestLoggerProvider.TransportType transportType, + @Nullable String transportUrl, + Set<String> excludedNativeQueryTypes, + int emitQueueCapacity, + int emitThreadCount, + @Nullable HttpClient httpClient + ) + { + this.jsonMapper = jsonMapper; + this.namespace = namespace; + this.transportType = transportType; + this.transportUrl = transportUrl; + this.excludedNativeQueryTypes = excludedNativeQueryTypes; + if (transportType == OpenLineageRequestLoggerProvider.TransportType.HTTP && transportUrl == null) { + throw new IllegalStateException( + "druid.request.logging.transportUrl must be set when transportType=HTTP" + ); + } + if (transportType == OpenLineageRequestLoggerProvider.TransportType.HTTP) { + this.httpClient = httpClient != null ? httpClient : HttpClientBuilder.create().build(); + // Bounded queue: if the queue is full, drop the event rather than blocking the query thread. + // A warning is logged on the first drop and every DISCARD_WARNING_INTERVAL drops thereafter. + this.emitExecutor = new ThreadPoolExecutor( + emitThreadCount, + emitThreadCount, + 60L, + TimeUnit.SECONDS, + new ArrayBlockingQueue<>(emitQueueCapacity), + Execs.makeThreadFactory("OpenLineageEmitter-%d"), + new DiscardWithWarningPolicy(discardedEventCount) + ); + } else { + this.httpClient = null; + this.emitExecutor = null; + } + } + + // Note: ComposingRequestLogger does not delegate @LifecycleStart to sub-loggers, so this method + // may not be called when used in a composing configuration. HTTP URL validation is therefore + // performed in the constructor instead. This method is retained for direct lifecycle use. + @LifecycleStart + @Override + public void start() + { + log.info( + "Started OpenLineage %s transport%s", + transportType, + transportUrl != null ? " to [" + transportUrl + "]" : "" + ); + } + + @LifecycleStop + @Override + public void stop() + { + if (emitExecutor != null) { + emitExecutor.shutdown(); + try { + if (!emitExecutor.awaitTermination(5, TimeUnit.SECONDS)) { + emitExecutor.shutdownNow(); + } + } + catch (InterruptedException e) { + emitExecutor.shutdownNow(); + Thread.currentThread().interrupt(); + } + } + if (httpClient instanceof Closeable) { + CloseableUtils.closeAndSuppressExceptions( + (Closeable) httpClient, + e -> log.warn(e, "Failed to close OpenLineage HTTP client") + ); + } + log.info("Stopped OpenLineage request logger"); + } + + @Override + public void logNativeQuery(RequestLogLine requestLogLine) throws IOException + { + if (requestLogLine.getQuery() == null) { + return; + } + + // Skip native sub-queries of a SQL execution to avoid duplicating the SQL-level event. + if (requestLogLine.getQuery().getContext().get(BaseQuery.SQL_QUERY_ID) != null) { + return; + } + + String queryType = requestLogLine.getQuery().getType(); + + if (excludedNativeQueryTypes.contains(queryType)) { + return; + } + + List<String> inputs = new ArrayList<>(new LinkedHashSet<>(requestLogLine.getQuery().getDataSource().getTableNames())); + String queryId = requestLogLine.getQuery().getId(); + if (queryId == null) { + log.debug("Native query reached OpenLineage logger without a query ID"); + queryId = UNKNOWN_QUERY_ID; + } + + emit(buildRunEvent(queryId, null, queryType, requestLogLine, inputs, null)); + } + + @Override + public void logSqlQuery(RequestLogLine requestLogLine) throws IOException + { + String sql = requestLogLine.getSql(); + List<String> inputs = new ArrayList<>(); + String output = null; + + if (sql != null) { + try { + SqlNode parsed = SqlParser.create(sql, SQL_PARSER_CONFIG).parseQuery(); + inputs = extractInputs(parsed); + output = extractOutput(parsed); + } + catch (SqlParseException e) { + // Druid-specific SQL extensions (REPLACE INTO, EXTERN, etc.) may not parse with the + // standard Calcite parser. Attempt to extract lineage via regex fallback; + // for other unparseable statements, emit the event without table-level lineage. + Matcher insertMatcher = INSERT_INTO_PATTERN.matcher(sql); + if (insertMatcher.find()) { + output = insertMatcher.group(1); + // Also try to extract inputs from the SELECT subquery (handles PARTITIONED BY and + // other Druid-specific clauses that prevent full parsing). EXTERN-sourced inputs + // will fail to re-parse and fall through with empty inputs, which is correct. + Matcher selectMatcher = REPLACE_SELECT_PATTERN.matcher(sql); + if (selectMatcher.find()) { + try { + SqlNode selectNode = SqlParser.create(selectMatcher.group(1), SQL_PARSER_CONFIG).parseQuery(); + inputs = extractInputs(selectNode); + } + catch (SqlParseException ignored) { + // EXTERN or other non-standard sources — inputs left empty + } + } + } + Matcher m = REPLACE_INTO_PATTERN.matcher(sql); + if (m.find()) { + output = m.group(1); + Matcher selectMatcher = REPLACE_SELECT_PATTERN.matcher(sql); + if (selectMatcher.find()) { + try { + SqlNode selectNode = SqlParser.create(selectMatcher.group(1), SQL_PARSER_CONFIG).parseQuery(); + inputs = extractInputs(selectNode); + } + catch (SqlParseException ignored) { + // fall through with empty inputs + } + } + } + log.debug( + "OpenLineage: could not parse SQL with standard Calcite parser (query will still be emitted): %s", + e.getMessage() + ); + } + } + + String queryId = extractSqlQueryId(requestLogLine); + emit(buildRunEvent(queryId, sql, "sql", requestLogLine, new ArrayList<>(new LinkedHashSet<>(inputs)), output)); + } + + private ObjectNode buildRunEvent( + String queryId, + @Nullable String sql, + String queryType, + RequestLogLine requestLogLine, + List<String> inputs, + @Nullable String output + ) + { + Map<String, Object> stats = requestLogLine.getQueryStats().getStats(); + boolean success = Boolean.TRUE.equals(stats.get("success")); + + ObjectNode event = jsonMapper.createObjectNode(); + event.put("eventType", success ? "COMPLETE" : "FAIL"); + event.put("eventTime", requestLogLine.getTimestamp().toInstant().toString()); + event.put("producer", PRODUCER); + event.put("schemaURL", SCHEMA_URL); + event.set("run", buildRun(queryId, queryType, requestLogLine, stats, success)); + event.set("job", buildJob(queryId, sql)); + event.set("inputs", buildDatasets(inputs)); + event.set("outputs", buildDatasets(output != null ? List.of(output) : List.of())); + return event; + } + + private ObjectNode buildRun( + String queryId, + String queryType, + RequestLogLine requestLogLine, + Map<String, Object> stats, + boolean success + ) + { + ObjectNode run = jsonMapper.createObjectNode(); + run.put("runId", UUID.nameUUIDFromBytes(queryId.getBytes(StandardCharsets.UTF_8)).toString()); + + ObjectNode facets = jsonMapper.createObjectNode(); + + ObjectNode engineFacet = createFacet(ENGINE_FACET_SCHEMA_URL); + engineFacet.put("name", "druid"); + engineFacet.put("version", getDruidVersion()); + facets.set("processing_engine", engineFacet); + + ObjectNode contextFacet = createFacet(null); + contextFacet.put("queryType", queryType); + contextFacet.put("remoteAddress", requestLogLine.getRemoteAddr()); + Object identity = stats.get("identity"); + if (identity != null) { + contextFacet.put("identity", identity.toString()); + } + Object nativeQueryIds = requestLogLine.getSqlQueryContext().get("nativeQueryIds"); + if (nativeQueryIds != null) { + contextFacet.put("nativeQueryIds", nativeQueryIds.toString()); + } + facets.set("druid_query_context", contextFacet); + + ObjectNode statsFacet = createFacet(null); + putLongStat(statsFacet, "durationMs", stats, "sqlQuery/time", "query/time"); + putLongStat(statsFacet, "bytes", stats, "sqlQuery/bytes", "query/bytes"); + putLongStat(statsFacet, "planningTimeMs", stats, "sqlQuery/planningTimeMs"); + Object statusCode = stats.get("statusCode"); + if (statusCode != null) { + statsFacet.put("statusCode", statusCode.toString()); + } + facets.set("druid_query_statistics", statsFacet); + + if (!success) { + Object exception = stats.get("exception"); + if (exception != null) { + ObjectNode errorFacet = createFacet(ERROR_FACET_SCHEMA_URL); + errorFacet.put("message", exception.toString()); + if ("sql".equals(queryType)) { + errorFacet.put("programmingLanguage", "SQL"); + } + facets.set("errorMessage", errorFacet); + } + } + + run.set("facets", facets); + return run; + } + + private ObjectNode buildJob(String queryId, @Nullable String sql) + { + ObjectNode job = jsonMapper.createObjectNode(); + job.put("namespace", namespace); + job.put("name", queryId); + + ObjectNode facets = jsonMapper.createObjectNode(); + + ObjectNode jobTypeFacet = createFacet(JOB_TYPE_FACET_SCHEMA_URL); + jobTypeFacet.put("processingType", "BATCH"); + jobTypeFacet.put("integration", "DRUID"); + jobTypeFacet.put("jobType", "QUERY"); + facets.set("jobType", jobTypeFacet); + + if (sql != null) { + ObjectNode sqlFacet = createFacet(SQL_FACET_SCHEMA_URL); + sqlFacet.put("query", sql); + facets.set("sql", sqlFacet); + } + + job.set("facets", facets); + return job; + } + + private ObjectNode createFacet(@Nullable String schemaUrl) + { + ObjectNode facet = jsonMapper.createObjectNode(); + facet.put("_producer", PRODUCER); + if (schemaUrl != null) { + facet.put("_schemaURL", schemaUrl); + } + return facet; + } + + private ArrayNode buildDatasets(List<String> tableNames) + { + ArrayNode array = jsonMapper.createArrayNode(); + for (String name : tableNames) { + ObjectNode node = jsonMapper.createObjectNode(); + node.put("namespace", namespace); + node.put("name", name); + node.set("facets", jsonMapper.createObjectNode()); + array.add(node); + } + return array; + } + + private List<String> extractInputs(SqlNode root) + { + List<String> tables = new ArrayList<>(); + if (root instanceof SqlInsert) { + // For INSERT/REPLACE, only walk the source query — the target table is an output, not an input. + collectTableNames(((SqlInsert) root).getSource(), tables, Set.of()); + } else { + collectTableNames(root, tables, Set.of()); + } + return tables; + } + + @Nullable + private String extractOutput(SqlNode root) + { + if (root instanceof SqlInsert) { + SqlNode target = ((SqlInsert) root).getTargetTable(); + if (target instanceof SqlIdentifier) { + return String.join(".", ((SqlIdentifier) target).names); + } + } + return null; + } + + /** + * Walks the SQL tree to collect table references from FROM clauses, JOINs, subqueries in + * WHERE/HAVING/SELECT, and set operations (UNION/INTERSECT/EXCEPT). CTE alias names are + * tracked in {@code excludeNames} to avoid reporting them as table inputs. + * + * <p>The walker distinguishes table-reference positions (FROM, JOIN) from column-reference + * positions (SELECT list, WHERE expressions) by collecting {@link SqlIdentifier} nodes only + * from known table-reference contexts, while recursing into all subqueries to find nested + * FROM clauses. + */ + private void collectTableNames(SqlNode node, List<String> tables, Set<String> excludeNames) + { + if (node == null) { + return; + } + if (node instanceof SqlWith) { + SqlWith with = (SqlWith) node; + Set<String> innerExcludes = new HashSet<>(excludeNames); + for (SqlNode item : with.withList) { + if (item instanceof SqlWithItem) { + innerExcludes.add(((SqlWithItem) item).name.getSimple()); + collectTableNames(((SqlWithItem) item).query, tables, innerExcludes); + } + } + collectTableNames(with.body, tables, innerExcludes); + } else if (node instanceof SqlNodeList) { + // Lists (e.g., SELECT list items): recurse into each element to find subqueries. + for (SqlNode item : (SqlNodeList) node) { + collectTableNames(item, tables, excludeNames); + } + } else if (node instanceof SqlSelect) { + SqlSelect select = (SqlSelect) node; + // FROM clause: identifiers here are table references. + collectFromPosition(select.getFrom(), tables, excludeNames); + // Recurse into WHERE, HAVING, and SELECT list to find nested subqueries. + collectTableNames(select.getWhere(), tables, excludeNames); + collectTableNames(select.getHaving(), tables, excludeNames); + collectTableNames(select.getSelectList(), tables, excludeNames); + } else if (node instanceof SqlCall) { + SqlCall call = (SqlCall) node; + if (call.getKind() == SqlKind.UNION || call.getKind() == SqlKind.INTERSECT || call.getKind() == SqlKind.EXCEPT) { + // Set operations: each operand is a SELECT whose FROM clause has table references. + for (SqlNode operand : call.getOperandList()) { + collectTableNames(operand, tables, excludeNames); + } + } else { + // Other expressions (AND, OR, IN, =, function calls, etc.): recurse to find subqueries. + for (SqlNode operand : call.getOperandList()) { + if (operand instanceof SqlSelect || operand instanceof SqlWith || operand instanceof SqlCall) { + collectTableNames(operand, tables, excludeNames); + } + } + } + } + } + + /** + * Collects table names from a FROM-clause position, where {@link SqlIdentifier} nodes + * represent table references (not column references). + */ + private void collectFromPosition(SqlNode node, List<String> tables, Set<String> excludeNames) + { + if (node == null) { + return; + } + if (node instanceof SqlIdentifier) { + String name = String.join(".", ((SqlIdentifier) node).names); + if (!excludeNames.contains(name)) { + tables.add(name); + } + } else if (node instanceof SqlJoin) { + SqlJoin join = (SqlJoin) node; + collectFromPosition(join.getLeft(), tables, excludeNames); + collectFromPosition(join.getRight(), tables, excludeNames); + } else if (node instanceof SqlSelect) { + // Subquery in FROM: recurse into the full select. + collectTableNames(node, tables, excludeNames); + } else if (node instanceof SqlBasicCall && node.getKind() == SqlKind.AS) { + // Alias: the table reference is the first operand. + collectFromPosition(((SqlBasicCall) node).operand(0), tables, excludeNames); + } else if (node instanceof SqlCall) { + // LATERAL, UNNEST, or other FROM-position nodes: walk operands. + for (SqlNode operand : ((SqlCall) node).getOperandList()) { + collectFromPosition(operand, tables, excludeNames); + } + } + } + + protected void emit(ObjectNode event) + { + try { + String json = jsonMapper.writeValueAsString(event); + if (transportType == OpenLineageRequestLoggerProvider.TransportType.HTTP) { + emitExecutor.submit(() -> emitHttp(json)); + } else { + log.debug("OpenLineage event: %s", json); + } + } + catch (IOException e) { + log.error(e, "Failed to serialize OpenLineage event"); + } + } + + private void emitHttp(String json) + { + HttpPost post = new HttpPost(transportUrl); + post.setEntity(new StringEntity(json, ContentType.APPLICATION_JSON)); + try { + org.apache.http.HttpResponse response = httpClient.execute(post); + int statusCode = response.getStatusLine().getStatusCode(); + if (statusCode < 200 || statusCode >= 300) { + log.warn( + "OpenLineage HTTP transport received non-2xx response [%d] from [%s]; event may have been dropped", + statusCode, + transportUrl + ); + } + EntityUtils.consumeQuietly(response.getEntity()); + } + catch (IOException e) { + log.error(e, "Failed to POST OpenLineage event to [%s]", transportUrl); + } + finally { + post.releaseConnection(); + } + } + + private String extractSqlQueryId(RequestLogLine requestLogLine) + { + Object id = requestLogLine.getSqlQueryContext().get(BaseQuery.SQL_QUERY_ID); Review Comment: getSqlQueryContext is Nullable -- This is an automated message from the Apache Git Service. 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