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Posted to commits@cassandra.apache.org by "Adam Holmberg (Jira)" <ji...@apache.org> on 2020/12/02 20:09:00 UTC
[jira] [Commented] (CASSANDRA-14834) Avoid keeping
StreamingTombstoneHistogramBuilder.Spool in memory during the whole
compaction
[ https://issues.apache.org/jira/browse/CASSANDRA-14834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17242683#comment-17242683 ]
Adam Holmberg commented on CASSANDRA-14834:
-------------------------------------------
[~marcuse] I was thinking of taking a look at this, but I see you're assigned. Do you have something in mind already? Intend to work on this?
> Avoid keeping StreamingTombstoneHistogramBuilder.Spool in memory during the whole compaction
> --------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-14834
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14834
> Project: Cassandra
> Issue Type: Bug
> Components: Local/Compaction
> Reporter: Marcus Eriksson
> Assignee: Marcus Eriksson
> Priority: Low
> Fix For: 4.0, 4.0-beta
>
>
> Since CASSANDRA-13444 {{StreamingTombstoneHistogramBuilder.Spool}} is allocated to keep around an array with 131072 * 2 * 2 integers *per written sstable* during the whole compaction. With LCS at times creating 1000s of sstables during a compaction it kills the node.
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