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https://issues.apache.org/jira/browse/HBASE-17757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15923456#comment-15923456
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Allan Yang commented on HBASE-17757:
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{quote}
Why? Pls see the condition is ||. So when ratio is 1, the condition block size
written >= 64 KB will break 1st and so we end a block. It is not that we just
consider encodedBlockSize alone. Am I missing some thing.
{quote}
Oh, I'm sorry, you are right! It's a brilliant way to just introduce one
config. I will update the patch.
> Unify blocksize after encoding to decrease memory fragment
> -----------------------------------------------------------
>
> Key: HBASE-17757
> URL: https://issues.apache.org/jira/browse/HBASE-17757
> Project: HBase
> Issue Type: New Feature
> Reporter: Allan Yang
> Assignee: Allan Yang
> Attachments: HBASE-17757.patch
>
>
> Usually, we store encoded block(uncompressed) in blockcache/bucketCache.
> Though we have set the blocksize, after encoding, blocksize is varied. Varied
> blocksize will cause memory fragment problem, which will result in more FGC
> finally.In order to relief the memory fragment, This issue adjusts the
> encoded block to a unified size.
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