[
https://issues.apache.org/jira/browse/CASSANDRA-12743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16453166#comment-16453166
]
Jay Zhuang edited comment on CASSANDRA-12743 at 4/25/18 11:30 PM:
------------------------------------------------------------------
Thanks [~krummas] for the review. It makes sense to backport the {{truncate()}}
part to {{2.2}} and {{3.0}}. The branch is updated, please review.
It's really hard to reproduce it locally, as the most of time the index file is
synced slower than the data file, so it uses index file synced position (even
the data synced position is wrong, it won't cause the problem):
[{{IndexSummaryBuilder.java:174}}|https://github.com/apache/cassandra/blob/5dc55e715eba6667c388da9f8f1eb7a46489b35c/src/java/org/apache/cassandra/io/sstable/IndexSummaryBuilder.java#L174].
But in one of our cluster, it happens every dozens hours per node. I patched
the fix and no longer see the issue.
was (Author: jay.zhuang):
Thanks [~krummas] for the review. I think it makes sense to backport the
{{truncate()}} part to {{2.2}} and {{3.0}}. The branch is updated, please
review.
> Assertion error while running compaction
> -----------------------------------------
>
> Key: CASSANDRA-12743
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12743
> Project: Cassandra
> Issue Type: Bug
> Components: Compaction
> Environment: unix
> Reporter: Jean-Baptiste Le Duigou
> Assignee: Jay Zhuang
> Priority: Major
>
> While running compaction I run into an error sometimes :
> {noformat}
> nodetool compact
> error: null
> -- StackTrace --
> java.lang.AssertionError
> at
> org.apache.cassandra.io.compress.CompressionMetadata$Chunk.<init>(CompressionMetadata.java:463)
> at
> org.apache.cassandra.io.compress.CompressionMetadata.chunkFor(CompressionMetadata.java:228)
> at
> org.apache.cassandra.io.util.CompressedSegmentedFile.createMappedSegments(CompressedSegmentedFile.java:80)
> at
> org.apache.cassandra.io.util.CompressedPoolingSegmentedFile.<init>(CompressedPoolingSegmentedFile.java:38)
> at
> org.apache.cassandra.io.util.CompressedPoolingSegmentedFile$Builder.complete(CompressedPoolingSegmentedFile.java:101)
> at
> org.apache.cassandra.io.util.SegmentedFile$Builder.complete(SegmentedFile.java:198)
> at
> org.apache.cassandra.io.sstable.format.big.BigTableWriter.openEarly(BigTableWriter.java:315)
> at
> org.apache.cassandra.io.sstable.SSTableRewriter.maybeReopenEarly(SSTableRewriter.java:171)
> at
> org.apache.cassandra.io.sstable.SSTableRewriter.append(SSTableRewriter.java:116)
> at
> org.apache.cassandra.db.compaction.writers.DefaultCompactionWriter.append(DefaultCompactionWriter.java:64)
> at
> org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:184)
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> at
> org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:74)
> at
> org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:59)
> at
> org.apache.cassandra.db.compaction.CompactionManager$8.runMayThrow(CompactionManager.java:599)
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> at
> java.util.concurrent.Executors$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}
> Why is that happening?
> Is there anyway to provide more details (e.g. which SSTable cannot be
> compacted)?
> We are using Cassandra 2.2.7
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
