[IOTDB-4117] compact bug: Exception ArithmeticException: / by zero

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Component/s: Core/Compaction
• Labels: pull-request-available
• Assignee: Bo Zhang
• Reporter: Bo Zhang
• Created: 11/Aug/22 09:18
• Updated: 15/Aug/22 02:43
• Resolved: 15/Aug/22 02:43

Description

IoTDB report exception when doing compaction

==============================

2022-08-03 19:51:19,878 [pool-15-IoTDB-Compaction_Schedule-root.sg1-0-1] ERROR o.a.i.c.c.t.ScheduledExecutorUtil:179 - Schedule task failed 

java.lang.ArithmeticException: / by zero

    at org.apache.iotdb.db.engine.compaction.cross.utils.ReadPointCrossCompactionEstimator.calculateReadingUnseqFile(ReadPointCrossCompactionEstimator.java:80)

    at org.apache.iotdb.db.engine.compaction.cross.utils.ReadPointCrossCompactionEstimator.estimateCrossCompactionMemory(ReadPointCrossCompactionEstimator.java:59)

    at org.apache.iotdb.db.engine.compaction.cross.rewrite.selector.RewriteCompactionFileSelector.selectSourceFiles(RewriteCompactionFileSelector.java:182)

    at org.apache.iotdb.db.engine.compaction.cross.rewrite.selector.RewriteCompactionFileSelector.select(RewriteCompactionFileSelector.java:104)

    at org.apache.iotdb.db.engine.compaction.cross.rewrite.RewriteCrossSpaceCompactionSelector.selectCrossSpaceTask(RewriteCrossSpaceCompactionSelector.java:97)

    at org.apache.iotdb.db.engine.compaction.CompactionScheduler.tryToSubmitCrossSpaceCompactionTask(CompactionScheduler.java:149)

    at org.apache.iotdb.db.engine.compaction.CompactionScheduler.scheduleCompaction(CompactionScheduler.java:59)

    at org.apache.iotdb.db.engine.storagegroup.DataRegion.executeCompaction(DataRegion.java:2484)

    at org.apache.iotdb.commons.concurrent.threadpool.ScheduledExecutorUtil.lambda$scheduleWithFixedDelay$1(ScheduledExecutorUtil.java:177)

    at org.apache.iotdb.commons.concurrent.WrappedRunnable$1.runMayThrow(WrappedRunnable.java:44)

    at org.apache.iotdb.commons.concurrent.WrappedRunnable.run(WrappedRunnable.java:29)

    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)

    at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)

    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)

    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)

    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

    at java.lang.Thread.run(Thread.java:748)

Issue Links

• links to: GitHub Pull Request #6967