weizhengte commented on code in PR #8858:
URL: https://github.com/apache/incubator-doris/pull/8858#discussion_r852546394
##########
fe/fe-core/src/main/java/org/apache/doris/statistics/StatisticsJobManager.java:
##########
@@ -27,47 +35,105 @@
import java.util.Map;
import java.util.Set;
+import java.util.concurrent.locks.ReentrantReadWriteLock;
-/*
-For unified management of statistics job,
-including job addition, cancellation, scheduling, etc.
+/**
+ * For unified management of statistics job,
+ * including job addition, cancellation, scheduling, etc.
*/
public class StatisticsJobManager {
private static final Logger LOG =
LogManager.getLogger(StatisticsJobManager.class);
- // statistics job
- private Map<Long, StatisticsJob> idToStatisticsJob =
Maps.newConcurrentMap();
+ /**
+ * save statistics job status information
+ */
+ private final Map<Long, StatisticsJob> idToStatisticsJob =
Maps.newConcurrentMap();
- public void createStatisticsJob(AnalyzeStmt analyzeStmt) {
- // step0: init statistics job by analyzeStmt
+ private final ReentrantReadWriteLock lock = new
ReentrantReadWriteLock(true);
+
+ public void readLock() {
+ lock.readLock().lock();
+ }
+
+ public void readUnlock() {
+ lock.readLock().unlock();
+ }
+
+ private void writeLock() {
+ lock.writeLock().lock();
+ }
+
+ private void writeUnlock() {
+ lock.writeLock().unlock();
+ }
+
+ public Map<Long, StatisticsJob> getIdToStatisticsJob() {
+ return this.idToStatisticsJob;
+ }
+
+ public void createStatisticsJob(AnalyzeStmt analyzeStmt) throws
UserException {
+ // step1: init statistics job by analyzeStmt
StatisticsJob statisticsJob =
StatisticsJob.fromAnalyzeStmt(analyzeStmt);
- // step1: get statistics to be analyzed
- Set<Long> tableIdList = statisticsJob.relatedTableId();
- // step2: check restrict
- checkRestrict(tableIdList);
- // step3: check permission
- checkPermission();
- // step4: create it
- createStatisticsJob(statisticsJob);
+ writeLock();
+ try {
+ // step2: check restrict
+ this.checkRestrict(analyzeStmt.getDb(), statisticsJob.getTblIds());
+ // step3: create it
+ this.createStatisticsJob(statisticsJob);
+ } finally {
+ writeUnlock();
+ }
}
- public void createStatisticsJob(StatisticsJob statisticsJob) {
- idToStatisticsJob.put(statisticsJob.getId(), statisticsJob);
+ public void createStatisticsJob(StatisticsJob statisticsJob) throws
DdlException {
+ // assign the id when the job is ready to run
+ statisticsJob.setId(Catalog.getCurrentCatalog().getNextId());
+ this.idToStatisticsJob.put(statisticsJob.getId(), statisticsJob);
try {
Catalog.getCurrentCatalog().getStatisticsJobScheduler().addPendingJob(statisticsJob);
} catch (IllegalStateException e) {
LOG.info("The pending statistics job is full. Please submit it
again later.");
+ throw new DdlException("The pending statistics job is full, Please
submit it again later.");
}
}
- // Rule1: The same table cannot have two unfinished statistics jobs
- // Rule2: The unfinished statistics job could not more then
Config.max_statistics_job_num
- // Rule3: The job for external table is not supported
- private void checkRestrict(Set<Long> tableIdList) {
- // TODO
- }
+ /**
+ * The statistical job has the following restrict:
+ * - Rule1: The same table cannot have two unfinished statistics jobs
+ * - Rule2: The unfinished statistics job could not more then
Config.max_statistics_job_num
+ * - Rule3: The job for external table is not supported
+ */
+ private void checkRestrict(Database db, Set<Long> tableIds) throws
AnalysisException {
+ // check table type
+ for (Long tableId : tableIds) {
+ Table table = db.getTableOrAnalysisException(tableId);
+ if (table.getType() != Table.TableType.OLAP) {
+
ErrorReport.reportAnalysisException(ErrorCode.ERR_NOT_OLAP_TABLE,
db.getFullName(), table.getName(), "ANALYZE");
+ }
+ }
- private void checkPermission() {
- // TODO
+ int unfinishedJobs = 0;
+
+ // check table unfinished job
+ for (StatisticsJob statisticsJob : this.idToStatisticsJob.values()) {
+ StatisticsJob.JobState jobState = statisticsJob.getJobState();
+ Set<Long> tblIds = statisticsJob.getTblIds();
+ if (jobState == StatisticsJob.JobState.PENDING
+ || jobState == StatisticsJob.JobState.SCHEDULING
+ || jobState == StatisticsJob.JobState.RUNNING) {
+ for (Long tableId : tableIds) {
+ if (tblIds.contains(tableId)) {
Review Comment:
A table may have more than one statistics job.
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