hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17738) BucketCache startup is slow
Date Thu, 22 Jun 2017 10:06:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16059092#comment-16059092
] 

ramkrishna.s.vasudevan commented on HBASE-17738:
------------------------------------------------

bq.Say we have 99 BBs to be created and we have 10 threads, make 9 threads to create 10 BBs
each and the last one to create 9? 
Oh missed seeing this latest comment.  So you mean we need to split and then send it to every
callable? So by default always do a split of 10 each?

> 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
>
>         Attachments: HBASE-17738_2.patch, HBASE-17738_2.patch, HBASE-17738_3.patch, HBASE-17738_4.patch,
HBASE-17738_5_withoutUnsafe.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.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

Mime
View raw message