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-15314) Allow more than one backing file in bucketcache
Date Wed, 09 Mar 2016 06:06:40 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15186584#comment-15186584
] 

ramkrishna.s.vasudevan commented on HBASE-15314:
------------------------------------------------

bq.If your bucketcache usedsize is only 20GB you get the performance of a single physical
disk with the proposed patch. If you use all files in parallel you get the performance of
all 4 disks.
I am trying learn more here. So here the point is as and when the cache is filling up only
then the usedSize will be growing and reaching upto 100GB (which is the total size of bucketCache).
The point and need here is that as when you are filling up try to parallelize the files instead
of filling it up one by one. So that initial 20G itself should be distributed among the four
files. Is that so?

> Allow more than one backing file in bucketcache
> -----------------------------------------------
>
>                 Key: HBASE-15314
>                 URL: https://issues.apache.org/jira/browse/HBASE-15314
>             Project: HBase
>          Issue Type: Sub-task
>          Components: BucketCache
>            Reporter: stack
>            Assignee: Amal Joshy
>         Attachments: HBASE-15314.patch
>
>
> Allow bucketcache use more than just one backing file: e.g. chassis has more than one
SSD in it.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message