hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18708) Configure on-heap bucketCache size using percentage of heap size
Date Tue, 29 Aug 2017 05:45:01 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16144775#comment-16144775

Anoop Sam John commented on HBASE-18708:

For 2.0 whether we need the on heap mode of Bucket Cache really?  Why should one use this?
Why not L1 LRU cache then which is any way on heap.   Considering the off heap mode improvement,
I was thinking to propose the removal of on heap mode of BC.

> Configure on-heap bucketCache size using percentage of heap size
> ----------------------------------------------------------------
>                 Key: HBASE-18708
>                 URL: https://issues.apache.org/jira/browse/HBASE-18708
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: Biju Nair
>            Assignee: Biju Nair
>            Priority: Trivial
> Currently heap allocations for RS memory structures like {{memstore}} and {{lruCache}}
are configured as percentage of total RS heap size. Since on-heap bucketCache uses RS heap,
configuring it as a percentage of heap size will improve usability. Currently this can be
configured either as a percentage of heap or a memory size in MiB and we can remove the latter
option which is applicable to external or off-heap bucketCache.

This message was sent by Atlassian JIRA

View raw message