[ https://issues.apache.org/jira/browse/CASSANDRA-12764?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jeff Jirsa updated CASSANDRA-12764: ----------------------------------- Labels: lcs performance (was: lcs) > Compaction performance issues with many sstables, during transaction commit > phase > --------------------------------------------------------------------------------- > > Key: CASSANDRA-12764 > URL: https://issues.apache.org/jira/browse/CASSANDRA-12764 > Project: Cassandra > Issue Type: Bug > Components: Local/Compaction > Reporter: Tom van der Woerdt > Priority: Normal > Labels: lcs, performance > > An issue with a script flooded my cluster with sstables. There is now a table > with 100k sstables, all on the order of KBytes, and it's taking a long time > (ETA 20 days) to compact, even though the table is only ~30GB. > Stack trace : > {noformat} > "CompactionExecutor:308" #7541 daemon prio=1 os_prio=4 tid=0x00007fa22af35400 > nid=0x41eb runnable [0x00007fdbea48d000] > java.lang.Thread.State: RUNNABLE > at java.util.TimSort.countRunAndMakeAscending(TimSort.java:360) > at java.util.TimSort.sort(TimSort.java:220) > at java.util.Arrays.sort(Arrays.java:1438) > at com.google.common.collect.Ordering.sortedCopy(Ordering.java:817) > at > org.apache.cassandra.utils.IntervalTree$IntervalNode.<init>(IntervalTree.java:209) > at > org.apache.cassandra.utils.IntervalTree$IntervalNode.<init>(IntervalTree.java:211) > at > org.apache.cassandra.utils.IntervalTree$IntervalNode.<init>(IntervalTree.java:211) > at > org.apache.cassandra.utils.IntervalTree$IntervalNode.<init>(IntervalTree.java:211) > at > org.apache.cassandra.utils.IntervalTree$IntervalNode.<init>(IntervalTree.java:211) > at > org.apache.cassandra.utils.IntervalTree$IntervalNode.<init>(IntervalTree.java:211) > at > org.apache.cassandra.utils.IntervalTree$IntervalNode.<init>(IntervalTree.java:211) > at > org.apache.cassandra.utils.IntervalTree$IntervalNode.<init>(IntervalTree.java:211) > at > org.apache.cassandra.utils.IntervalTree$IntervalNode.<init>(IntervalTree.java:210) > at > org.apache.cassandra.utils.IntervalTree$IntervalNode.<init>(IntervalTree.java:210) > at > org.apache.cassandra.utils.IntervalTree$IntervalNode.<init>(IntervalTree.java:210) > at > org.apache.cassandra.utils.IntervalTree$IntervalNode.<init>(IntervalTree.java:210) > at org.apache.cassandra.utils.IntervalTree.<init>(IntervalTree.java:50) > at > org.apache.cassandra.db.lifecycle.SSTableIntervalTree.<init>(SSTableIntervalTree.java:40) > at > org.apache.cassandra.db.lifecycle.SSTableIntervalTree.build(SSTableIntervalTree.java:50) > at org.apache.cassandra.db.lifecycle.View$4.apply(View.java:288) > at org.apache.cassandra.db.lifecycle.View$4.apply(View.java:283) > at > com.google.common.base.Functions$FunctionComposition.apply(Functions.java:216) > at org.apache.cassandra.db.lifecycle.Tracker.apply(Tracker.java:128) > at org.apache.cassandra.db.lifecycle.Tracker.apply(Tracker.java:101) > at > org.apache.cassandra.db.lifecycle.LifecycleTransaction.checkpoint(LifecycleTransaction.java:307) > at > org.apache.cassandra.db.lifecycle.LifecycleTransaction.checkpoint(LifecycleTransaction.java:288) > at > org.apache.cassandra.io.sstable.SSTableRewriter.doPrepare(SSTableRewriter.java:368) > at > org.apache.cassandra.utils.concurrent.Transactional$AbstractTransactional.prepareToCommit(Transactional.java:173) > at > org.apache.cassandra.db.compaction.writers.CompactionAwareWriter.doPrepare(CompactionAwareWriter.java:84) > at > org.apache.cassandra.utils.concurrent.Transactional$AbstractTransactional.prepareToCommit(Transactional.java:173) > at > org.apache.cassandra.utils.concurrent.Transactional$AbstractTransactional.finish(Transactional.java:184) > at > org.apache.cassandra.db.compaction.writers.CompactionAwareWriter.finish(CompactionAwareWriter.java:94) > at > org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:194) > at > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) > at > org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:78) > at > org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:61) > at > org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:263) > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) > at java.util.concurrent.FutureTask.run(FutureTask.java:266) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at java.lang.Thread.run(Thread.java:745) > {noformat} > IntervalTree shows in a lot of stack traces I've taken on several nodes. -- This message was sent by Atlassian JIRA (v7.6.14#76016) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org