[jira] [Resolved] (CASSANDRA-13718) ConcurrentModificationException in nodetool upgradesstables

["Jeff Jirsa (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-13718?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jeff Jirsa resolved CASSANDRA-13718.
------------------------------------
    Resolution: Fixed
      Assignee: Jeff Jirsa

Resolving this as a dupe of CASSANDRA-13756 , you reported it first, but I arbitrarily chose that one for my github branch name, so going with that. Thanks for the report!


> ConcurrentModificationException in nodetool upgradesstables
> -----------------------------------------------------------
>
>                 Key: CASSANDRA-13718
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13718
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: Cassandra 3.11 on Linux
>            Reporter: Hannu Kröger
>            Assignee: Jeff Jirsa
>
> When upgrading from 2.2.8 to Cassandra 3.11 we were able to upgrade all other sstables except 1 file on 3 nodes (out of 4). Those are related to 2 different tables.
> Upgrading sstables fails with ConcurrentModificationException.
> {code}
> $ nodetool upgradesstables
> error: null
> -- StackTrace --
> java.util.ConcurrentModificationException
> 	at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1211)
> 	at java.util.TreeMap$KeyIterator.next(TreeMap.java:1265)
> 	at org.apache.cassandra.utils.StreamingHistogram.flushHistogram(StreamingHistogram.java:168)
> 	at org.apache.cassandra.utils.StreamingHistogram.update(StreamingHistogram.java:124)
> 	at org.apache.cassandra.utils.StreamingHistogram.update(StreamingHistogram.java:96)
> 	at org.apache.cassandra.io.sstable.metadata.MetadataCollector.updateLocalDeletionTime(MetadataCollector.java:209)
> 	at org.apache.cassandra.io.sstable.metadata.MetadataCollector.update(MetadataCollector.java:182)
> 	at org.apache.cassandra.db.rows.Cells.collectStats(Cells.java:44)
> 	at org.apache.cassandra.db.rows.Rows.lambda$collectStats$0(Rows.java:102)
> 	at org.apache.cassandra.utils.btree.BTree.applyForwards(BTree.java:1242)
> 	at org.apache.cassandra.utils.btree.BTree.apply(BTree.java:1197)
> 	at org.apache.cassandra.db.rows.BTreeRow.apply(BTreeRow.java:172)
> 	at org.apache.cassandra.db.rows.Rows.collectStats(Rows.java:97)
> 	at org.apache.cassandra.io.sstable.format.big.BigTableWriter$StatsCollector.applyToRow(BigTableWriter.java:237)
> 	at org.apache.cassandra.db.transform.BaseRows.hasNext(BaseRows.java:141)
> 	at org.apache.cassandra.db.ColumnIndex.buildRowIndex(ColumnIndex.java:110)
> 	at org.apache.cassandra.io.sstable.format.big.BigTableWriter.append(BigTableWriter.java:173)
> 	at org.apache.cassandra.io.sstable.SSTableRewriter.append(SSTableRewriter.java:135)
> 	at org.apache.cassandra.db.compaction.writers.DefaultCompactionWriter.realAppend(DefaultCompactionWriter.java:65)
> 	at org.apache.cassandra.db.compaction.writers.CompactionAwareWriter.append(CompactionAwareWriter.java:141)
> 	at org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:201)
> 	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> 	at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:85)
> 	at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:61)
> 	at org.apache.cassandra.db.compaction.CompactionManager$5.execute(CompactionManager.java:428)
> 	at org.apache.cassandra.db.compaction.CompactionManager$2.call(CompactionManager.java:315)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> 	at java.util.concurrent.Executors$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$Worker.run(ThreadPoolExecutor.java:617)
> 	at org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:81)
> 	at java.lang.Thread.run(Thread.java:745)
> {code}



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