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https://issues.apache.org/jira/browse/CASSANDRA-10680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14999459#comment-14999459
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Jeff Jirsa commented on CASSANDRA-10680:
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Initial tests suggest this (commit 61d2630e9950e9abc0d8da3939b280ff44b5ddc0)
does indeed solve this issue.
> Deal with small compression chunk size better during streaming plan setup
> -------------------------------------------------------------------------
>
> Key: CASSANDRA-10680
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10680
> Project: Cassandra
> Issue Type: Bug
> Reporter: Jeff Jirsa
> Assignee: Yuki Morishita
> Fix For: 2.1.x
>
>
> For clusters using small compression chunk size and terabytes of data, the
> streaming plan calculations will instantiate hundreds of millions of
> compressionmetadata$chunk objects, which will create unreasonable amounts of
> heap pressure. Rather than instantiating all of those at once, streaming
> should instantiate only as many as needed for a single file per table at a
> time.
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