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https://issues.apache.org/jira/browse/FLINK-30075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17638033#comment-17638033
]
zhanglu153 edited comment on FLINK-30075 at 11/24/22 2:09 AM:
--------------------------------------------------------------
[~martijnvisser] When using hadoop 2.10.1 during testing, an exception will be
thrown. Do you have a better solution? This exception also exists when using
hadoop 3.
was (Author: JIRAUSER298392):
[~martijnvisser] When using hadoop 2.10.1 during testing, an exception will be
thrown. Do you have a better solution?
> Failed to load data to the cache after the hive lookup join task is restarted
> -----------------------------------------------------------------------------
>
> Key: FLINK-30075
> URL: https://issues.apache.org/jira/browse/FLINK-30075
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Hive
> Affects Versions: 1.12.2
> Reporter: zhanglu153
> Priority: Major
> Attachments: Set the properties object in the Configuration object of
> DFSClient#namenode proxy in the DistributedFileSystem object to null.png, The
> error thrown when calling the getProps method after properties is set to
> null.png, call the org.apache.hadoop.conf.Configuration#getProps method to
> create the Properties object.png, hadoop2.10.1
> org.apache.hadoop.conf.Configuration#getProps.png, hadoop2.10.1
> org.apache.hadoop.mapred.Master#getMasterPrincipal.png, hadoop2.10.1
> org.apache.hadoop.security.SaslRpcClient#conf.png, hadoop2.10.1
> org.apache.hadoop.yarn.client.util.YarnClientUtils#getYarnConfWithRmHaId.png,
> hadoop2.10.1 org.apache.hadoop.yarn.conf.YarnConfiguration static code
> block.png, hadoop2.8.5
> org.apache.hadoop.mapred.Master#getMasterPrincipal.png, hadoop2.8.5
> org.apache.hadoop.security.SaslRpcClient#conf.png,
> org.apache.flink.connectors.hive.read.HiveTableInputFormat#createInputSplits.png,
> org.apache.hadoop.conf.Configuration#addDefaultResource.png,
> org.apache.hadoop.security.SaslRpcClient.png
>
>
> When I test kafka and hive lookup join, only the connection between tm and
> zookeeper is disconnected after the data is successfully loaded into the
> cache. In this case, the task will be restarted because the flink task
> restart policy is configured (note that the task process does not change at
> this time, and the task restarts in the same container).
> The task sql is as follows:
> {code:java}
> StreamExecutionEnvironment env =
> StreamExecutionEnvironment.getExecutionEnvironment();
> env.setParallelism(1);
> EnvironmentSettings settings =
> EnvironmentSettings.newInstance().useBlinkPlanner().inStreamingMode().build();
> StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env,
> settings);
> tableEnv.executeSql("CREATE TABLE kafka_table_1 (\n" +
> " a string,\n" +
> " b int,\n" +
> " c string,\n" +
> " log_ts TIMESTAMP(0),\n" +
> ") WITH (\n" +
> " 'connector' = 'kafka',\n" +
> " 'topic' = 'test',\n" +
> " 'scan.startup.mode' = 'latest-offset',\n" +
> " 'properties.bootstrap.servers' = '172.16.144.208:9092',\n" +
> " 'format' = 'csv'\n" +
> ")");
> String name = "hive_catalog";
> String hiveConfDir = "/cloud/service/flink/conf";
> HiveCatalog hive = new HiveCatalog(name, null, hiveConfDir);
> hive.open();
> tableEnv.registerCatalog(name, hive);
> tableEnv.useCatalog(name);
> tableEnv.getConfig().setSqlDialect(SqlDialect.HIVE);
> tableEnv.executeSql("create table if not exists ttt(a string,b int,c
> string)");
> tableEnv.getConfig().setSqlDialect(SqlDialect.DEFAULT);
> tableEnv.executeSql("select * from
> default_catalog.default_database.kafka_table_1 as u join ttt for system_time
> as of u.proctime as o on u.a = o.a").print();{code}
> After the task is successfully restarted, kafka produces data. When some data
> comes in, an error message is displayed indicating that loading data into the
> cache fails. The error message is as follows:
> {code:java}
> 2022-11-17 14:09:16,041 INFO
> org.apache.flink.table.filesystem.FileSystemLookupFunction [] - Populating
> lookup join cache
> 2022-11-17 14:09:16,051 INFO org.apache.hadoop.conf.Configuration
> [] - getProps 1230612033
> 2022-11-17 14:09:16,053 INFO
> org.apache.hadoop.io.retry.RetryInvocationHandler [] -
> java.io.IOException:
> org.apache.flink.shaded.hadoop2.com.google.protobuf.ServiceException:
> java.lang.IllegalStateException: Trying to access closed classloader. Please
> check if you store classloaders directly or indirectly in static fields. If
> the stacktrace suggests that the leak occurs in a third party library and
> cannot be fixed immediately, you can disable this check with the
> configuration 'classloader.check-leaked-classloader'., while invoking
> ClientNamenodeProtocolTranslatorPB.getFileInfo over
> hdp-hadoop-hdp-namenode-1.hdp-hadoop-hdp-namenode.hdp-dev-env-3.svc.cluster.local/192.168.6.85:9000.
> Trying to failover immediately.
> 2022-11-17 14:09:16,053 DEBUG org.apache.hadoop.ipc.Client
> [] - The ping interval is 60000 ms.
> 2022-11-17 14:09:16,053 DEBUG org.apache.hadoop.ipc.Client
> [] - Connecting to
> hdp-hadoop-hdp-namenode-0.hdp-hadoop-hdp-namenode.hdp-dev-env-3.svc.cluster.local/192.168.0.8:9000
> 2022-11-17 14:09:16,055 DEBUG org.apache.hadoop.security.UserGroupInformation
> [] - PrivilegedAction
> as:hadoop/hdp-flinkhistory-hdp-flink-history-6754db4f9c-8b8nd.hdp-flinkhistory-hdp-flink-history.hdp-dev-env-3.svc.cluster.lo...@dahua.com
> (auth:KERBEROS)
> from:org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:825)
> 2022-11-17 14:09:16,056 DEBUG org.apache.hadoop.security.SaslRpcClient
> [] - Sending sasl message state: NEGOTIATE
> 2022-11-17 14:09:16,057 DEBUG org.apache.hadoop.security.SaslRpcClient
> [] - Get token info proto:interface
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolPB
> info:@org.apache.hadoop.security.token.TokenInfo(value=class
> org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenSelector)
> 2022-11-17 14:09:16,057 INFO org.apache.hadoop.security.SaslRpcClient
> [] - getServerPrincipal 1230612033
> 2022-11-17 14:09:16,057 DEBUG org.apache.hadoop.security.SaslRpcClient
> [] - Get kerberos info proto:interface
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolPB
> info:@org.apache.hadoop.security.KerberosInfo(clientPrincipal=,
> serverPrincipal=dfs.namenode.kerberos.principal)
> 2022-11-17 14:09:16,059 DEBUG org.apache.hadoop.security.SaslRpcClient
> [] - getting serverKey: dfs.namenode.kerberos.principal conf
> value: null principal: null
> 2022-11-17 14:09:16,059 DEBUG org.apache.hadoop.ipc.Client
> [] - closing ipc connection to
> hdp-hadoop-hdp-namenode-0.hdp-hadoop-hdp-namenode.hdp-dev-env-3.svc.cluster.local/192.168.0.8:9000:
> Couldn't set up IO streams: java.lang.IllegalArgumentException: Failed to
> specify server's Kerberos principal name
> java.io.IOException: Couldn't set up IO streams:
> java.lang.IllegalArgumentException: Failed to specify server's Kerberos
> principal name
> at
> org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:891)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.ipc.Client$Connection.access$3700(Client.java:423)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.ipc.Client.getConnection(Client.java:1615)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.ipc.Client.call(Client.java:1446)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.ipc.Client.call(Client.java:1399)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:232)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:118)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at com.sun.proxy.$Proxy27.getFileInfo(Unknown Source) ~[?:?]
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:800)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> ~[?:1.8.0_342]
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> ~[?:1.8.0_342]
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> ~[?:1.8.0_342]
> at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_342]
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at com.sun.proxy.$Proxy28.getFileInfo(Unknown Source) ~[?:?]
> at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1673)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1524)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1521)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1536)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1632)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.flink.connectors.hive.read.HiveTableInputFormat.createInputSplits(HiveTableInputFormat.java:334)
> ~[flink-connector-hive_2.11-1.12.2-HDP-22.10.28.jar:1.12.2-HDP-22.10.28]
> at
> org.apache.flink.connectors.hive.read.HiveTableInputFormat.createInputSplits(HiveTableInputFormat.java:318)
> ~[flink-connector-hive_2.11-1.12.2-HDP-22.10.28.jar:1.12.2-HDP-22.10.28]
> at
> org.apache.flink.connectors.hive.read.HiveInputFormatPartitionReader.open(HiveInputFormatPartitionReader.java:83)
> ~[flink-connector-hive_2.11-1.12.2-HDP-22.10.28.jar:1.12.2-HDP-22.10.28]
> at
> org.apache.flink.table.filesystem.FileSystemLookupFunction.checkCacheReload(FileSystemLookupFunction.java:132)
> ~[flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.table.filesystem.FileSystemLookupFunction.eval(FileSystemLookupFunction.java:105)
> ~[flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.table.filesystem.security.HdpFileSystemLookupFunction.lambda$eval$1(HdpFileSystemLookupFunction.java:59)
> ~[flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.runtime.security.SecurityUtils.runAtOneContext(SecurityUtils.java:100)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.table.filesystem.security.HdpFileSystemLookupFunction.eval(HdpFileSystemLookupFunction.java:58)
> [flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at LookupFunction$10.flatMap(Unknown Source)
> [flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:?]
> at
> org.apache.flink.table.runtime.operators.join.lookup.LookupJoinRunner.processElement(LookupJoinRunner.java:81)
> [flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.table.runtime.operators.join.lookup.LookupJoinRunner.processElement(LookupJoinRunner.java:34)
> [flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.ProcessOperator.processElement(ProcessOperator.java:66)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.pushToOperator(CopyingChainingOutput.java:71)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:46)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:26)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:50)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:28)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at StreamExecCalc$7.processElement(Unknown Source)
> [flink-table-blink_2.11-1.12.2-HDP-22.10.09.jar:?]
> at
> org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.pushToOperator(CopyingChainingOutput.java:71)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:46)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:26)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:50)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:28)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.StreamSourceContexts$ManualWatermarkContext.processAndCollectWithTimestamp(StreamSourceContexts.java:322)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.StreamSourceContexts$WatermarkContext.collectWithTimestamp(StreamSourceContexts.java:426)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.connectors.kafka.internals.AbstractFetcher.emitRecordsWithTimestamps(AbstractFetcher.java:365)
> [flink-sql-connector-kafka_2.11-1.12.2-HDP-22.09.20.jar:1.12.2-HDP-22.09.20]
> at
> org.apache.flink.streaming.connectors.kafka.internals.KafkaFetcher.partitionConsumerRecordsHandler(KafkaFetcher.java:183)
> [flink-sql-connector-kafka_2.11-1.12.2-HDP-22.09.20.jar:1.12.2-HDP-22.09.20]
> at
> org.apache.flink.streaming.connectors.kafka.internals.KafkaFetcher.runFetchLoop(KafkaFetcher.java:142)
> [flink-sql-connector-kafka_2.11-1.12.2-HDP-22.09.20.jar:1.12.2-HDP-22.09.20]
> at
> org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase.run(FlinkKafkaConsumerBase.java:826)
> [flink-sql-connector-kafka_2.11-1.12.2-HDP-22.09.20.jar:1.12.2-HDP-22.09.20]
> at
> org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:110)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:66)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> at
> org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:263)
> [flink-dist_2.11-1.12.2-HDP-22.10.09.jar:1.12.2-HDP-22.10.09]
> Caused by: java.lang.IllegalArgumentException: Failed to specify server's
> Kerberos principal name
> at
> org.apache.hadoop.security.SaslRpcClient.getServerPrincipal(SaslRpcClient.java:326)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.security.SaslRpcClient.createSaslClient(SaslRpcClient.java:231)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.security.SaslRpcClient.selectSaslClient(SaslRpcClient.java:159)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.security.SaslRpcClient.saslConnect(SaslRpcClient.java:391)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.ipc.Client$Connection.setupSaslConnection(Client.java:617)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.ipc.Client$Connection.access$2200(Client.java:423)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:829)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:825)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at java.security.AccessController.doPrivileged(Native Method)
> ~[?:1.8.0_342]
> at javax.security.auth.Subject.doAs(Subject.java:422) ~[?:1.8.0_342]
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:2012)
>
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> at
> org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:825)
> ~[flink-shaded-hadoop-2-uber-2.10.1-HDP-22.09.1-release-10.0.jar:2.10.1-HDP-22.09.1-release-10.0]
> ... 56 more{code}
> The task did not fail, but hive failed to load data into the cache.
> The hadoop version used in the test is 2.10.1. During the test, it was found
> that changing the hadoop version to 2.8.5 did not throw an exception. Only
> after hive data is loaded to the cache for the first time and the task is
> restarted, the restarted task cannot properly load hive data to the cache;
> The test found that if the nth time (n>=2) load the hive data into the cache
> and the task is restarted, the restarted task can normally load the hive data
> into the cache.
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