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Chris Miller edited comment on CASSANDRA-16764 at 4/22/25 10:19 AM: -------------------------------------------------------------------- thanks [~brandon.williams] and [~dcapwell] for your feedback. fyi, i've only imported the problem CF so all SSTABLEs were compacted using UDC. RE: sstablesplit I was just relaying that this is na for us. I will test increasing column_index_cache_size to see whether it serves as a workaround. What size would you recommend? Is there a way of determining the optimal size? was (Author: JIRAUSER309453): thanks [~brandon.williams] and [~dcapwell] for your feedback. fyi, i've only imported the problem CF so all SSTABLEs were compacted using UDC. RE: sstablesplit I was just relaying that this is na for us. I will test increasing column_index_cache_size to see whether it serves as a workaround. > Compaction repeatedly fails validateReallocation exception > ---------------------------------------------------------- > > Key: CASSANDRA-16764 > URL: https://issues.apache.org/jira/browse/CASSANDRA-16764 > Project: Apache 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. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org