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https://issues.apache.org/jira/browse/CASSANDRA-18260?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Semb Wever updated CASSANDRA-18260:
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Status: Ready to Commit (was: Review In Progress)
> Add details to Error message: Not enough space for compaction
> --------------------------------------------------------------
>
> Key: CASSANDRA-18260
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18260
> Project: Cassandra
> Issue Type: Improvement
> Components: Local/Compaction, Observability/Logging
> Reporter: Brad Schoening
> Assignee: Henrik Ingo
> Priority: Normal
> Fix For: 4.0.x, 4.1.x, 5.x
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> When compaction fails, the log message should list a) the free space
> available on disk at that point in time and b) perhaps the number and/or size
> of the source sstables being compacted.
> Free space can change from one moment to the next, so when the below
> compaction failed because it needed 161GB, upon checking the server a few
> minutes later, it had 184GB free. Similarly, the error message mentions it
> was writing out one SSTable on this STCS table, but its not clear if it was
> combining X -> 1 tables, or something else.
> {noformat}
> [INFO ] [CompactionExecutor:77758] cluster_id=87 ip_address=127.1.1.1
> CompactionTask.java:241 - Compacted (8a1cffe0-abb5-11ed-b3fc-8d2ac2c52f0d) 1
> sstables to [...] to level=0. 86.997GiB to 86.997GiB (~99% of original) in
> 1,508,155ms. Read Throughput = 59.069MiB/s, Write Throughput = 59.069MiB/s,
> Row Throughput = ~20,283/s. 21,375 total partitions merged to 21,375.
> Partition merge counts were \{1:21375, }
> [ERROR] [CompactionExecutor:77774] cluster_id=87 ip_address=127.1.1.1
> CassandraDaemon.java:581 - Exception in thread
> Thread[CompactionExecutor:77774,1,main]
> java.lang.RuntimeException: Not enough space for compaction, estimated
> sstables = 1, expected write size = 161228934093
> at
> org.apache.cassandra.db.compaction.CompactionTask.buildCompactionCandidatesForAvailableDiskSpace(CompactionTask.java:386)
> at
> org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:126)
> at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> at
> org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:77)
> at
> org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:100)
> at
> org.apache.cassandra.db.compaction.CompactionManager$7.execute(CompactionManager.java:613)
> at
> org.apache.cassandra.db.compaction.CompactionManager$2.call(CompactionManager.java:377)
> at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at
> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> at java.base/java.lang.Thread.run(Thread.java:834)
> {noformat}
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