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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17738) BucketCache startup is slow
Date Thu, 20 Jul 2017 10:39:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16094499#comment-16094499

Anoop Sam John commented on HBASE-17738:

The mismatch in #BBs for each thread will be more visible if #threads are really large.  Seems
that wont be the case.  So its fine with the proposed addendum way also.

> BucketCache startup is slow
> ---------------------------
>                 Key: HBASE-17738
>                 URL: https://issues.apache.org/jira/browse/HBASE-17738
>             Project: HBase
>          Issue Type: Sub-task
>          Components: BucketCache
>    Affects Versions: 2.0.0
>            Reporter: stack
>            Assignee: ramkrishna.s.vasudevan
>             Fix For: 2.0.0, 2.0.0-alpha-2
>         Attachments: HBASE-17738_10.patch, HBASE-17738_2.patch, HBASE-17738_2.patch,
HBASE-17738_3.patch, HBASE-17738_4.patch, HBASE-17738_5_withoutUnsafe.patch, HBASE-17738_6_withoutUnsafe.patch,
HBASE-17738_8.patch, HBASE-17738_9.patch, HBASE-17738_log.patch, HBASE-17738.patch
> 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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