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https://issues.apache.org/jira/browse/CASSANDRA-16764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17513546#comment-17513546
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Jai Bheemsen Rao Dhanwada edited comment on CASSANDRA-16764 at 3/28/22, 6:08 PM:
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I am running into this issue as well and have couple of questions.
# {{I understand that Index file is SSTable Index which maps row keys to their
respective offsets in the Data file, but does this holds the actual Row Key and
since the compaction is failing, even the tombstoned rows are not getting
cleared from the Index files and the actual data files (Data.db) ?}}
# Is there a configuration/limit where we can increase this limit from 2GB to
a higher value?
# In worst case, what is the harm or loss when we delete these files?
was (Author: jaid):
I am running into this issue as well and have couple of questions.
# {{I understand that Index file is SSTable Index which maps row keys to their
respective offsets in the Data file, but does this holds the actual Row Key and
since the compaction is failing, even the tombstoned rows are not getting
cleared from the Index files and the actual data files (Data.db) ?}}
# Is there a configuration/limit where we can increase this limit from 2GB to
a higher value?
# In worst case, what is the harm or loss when we delete these files?
> Compaction repeatedly fails validateReallocation exception
> ----------------------------------------------------------
>
> Key: CASSANDRA-16764
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16764
> Project: Cassandra
> Issue Type: Bug
> Components: Local/Compaction/LCS
> Reporter: Richard Hesse
> Priority: Normal
>
> I have a few nodes in my ring that are stuck repeatedly trying to compact the
> same tables over and over again. I've run through the usual trick of rolling
> restarts, and it doesn't seem to help. This exception is logged on the nodes:
> {code}
> ERROR [CompactionExecutor:6] 2021-06-25 20:28:30,001 CassandraDaemon.java:244
> - Exception in thread Thread[CompactionExecutor:6,1,main]
> java.lang.RuntimeException: null
> at
> org.apache.cassandra.io.util.DataOutputBuffer.validateReallocation(DataOutputBuffer.java:134)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.io.util.DataOutputBuffer.calculateNewSize(DataOutputBuffer.java:152)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.io.util.DataOutputBuffer.expandToFit(DataOutputBuffer.java:159)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.io.util.DataOutputBuffer.doFlush(DataOutputBuffer.java:119)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.io.util.BufferedDataOutputStreamPlus.write(BufferedDataOutputStreamPlus.java:132)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.io.util.BufferedDataOutputStreamPlus.write(BufferedDataOutputStreamPlus.java:151)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.utils.ByteBufferUtil.writeWithVIntLength(ByteBufferUtil.java:296)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.db.marshal.AbstractType.writeValue(AbstractType.java:426)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.db.ClusteringPrefix$Serializer.serializeValuesWithoutSize(ClusteringPrefix.java:323)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.db.Clustering$Serializer.serialize(Clustering.java:131)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.db.ClusteringPrefix$Serializer.serialize(ClusteringPrefix.java:266)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.db.Serializers$NewFormatSerializer.serialize(Serializers.java:167)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.db.Serializers$NewFormatSerializer.serialize(Serializers.java:154)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.io.sstable.IndexInfo$Serializer.serialize(IndexInfo.java:103)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.io.sstable.IndexInfo$Serializer.serialize(IndexInfo.java:82)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.db.ColumnIndex.addIndexBlock(ColumnIndex.java:216)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at org.apache.cassandra.db.ColumnIndex.add(ColumnIndex.java:264)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.db.ColumnIndex.buildRowIndex(ColumnIndex.java:111)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.io.sstable.format.big.BigTableWriter.append(BigTableWriter.java:173)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.io.sstable.SSTableRewriter.append(SSTableRewriter.java:136)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.db.compaction.writers.MaxSSTableSizeWriter.realAppend(MaxSSTableSizeWriter.java:98)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.db.compaction.writers.CompactionAwareWriter.append(CompactionAwareWriter.java:143)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:204)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:85)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:61)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:272)
> ~[apache-cassandra-3.11.10.jar:3.11.10]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> ~[na:1.8.0_292]
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> ~[na:1.8.0_292]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> ~[na:1.8.0_292]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> [na:1.8.0_292]
> at
> org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:84)
> [apache-cassandra-3.11.10.jar:3.11.10]
> at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_292]
> {code}
> Watching the compaction progress, it looks like it makes it through, dies,
> then starts over again. This process repeats forever.
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