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https://issues.apache.org/jira/browse/HBASE-17738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15900742#comment-15900742
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ramkrishna.s.vasudevan commented on HBASE-17738:
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I tried creating around 300G of ByteBuffers and it takes more than 1 min to do
it. I think we can speed it up. But with FileCache it does not happen so I
believe as it is only about creating a file. Will check that to confirm once.
> BucketCache startup is slow
> ---------------------------
>
> Key: HBASE-17738
> URL: https://issues.apache.org/jira/browse/HBASE-17738
> Project: HBase
> Issue Type: Sub-task
> Components: BucketCache
> Reporter: stack
>
> If you set bucketcache size at 64G say and then start hbase, it takes a long
> time. Can we do the allocations in parallel and not inline with the server
> startup?
> Related, prefetching on a bucketcache is slow. Speed it up.
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