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https://issues.apache.org/jira/browse/CASSANDRA-15393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16964309#comment-16964309
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Blake Eggleston commented on CASSANDRA-15393:
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{quote}Yes, remove it entirely from the API (and perhaps more widely from the
codebase, although this could be done incrementally)
{quote}
That would probably be the most straightforward approach for trunk. There may
be some sharp edges outside of the local read path but it's worth looking into.
I've been working on a garbage free reader that relies on having some wrapper
over the raw bytes, but that would be a post-4.0 project and we could go back
to byte buffers if/when it materializes.
> Add byte array backed cells
> ---------------------------
>
> Key: CASSANDRA-15393
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15393
> Project: Cassandra
> Issue Type: Sub-task
> Components: Local/Compaction
> Reporter: Blake Eggleston
> Assignee: Blake Eggleston
> Priority: Normal
> Fix For: 4.0
>
>
> We currently materialize all values as on heap byte buffers. Byte buffers
> have a fairly high overhead given how frequently they’re used, and on the
> compaction and local read path we don’t do anything that needs them. Use of
> byte buffer methods only happens on the coordinator. Using cells that are
> backed by byte arrays instead in these situations reduces compaction and read
> garbage up to 22% in many cases.
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