hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12451) IncreasingToUpperBoundRegionSplitPolicy may cause unnecessary region splits in rolling update of cluster
Date Tue, 04 Oct 2016 23:29:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15547030#comment-15547030
] 

Hadoop QA commented on HBASE-12451:
-----------------------------------

| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 0s {color} | {color:blue}
Docker mode activated. {color} |
| {color:blue}0{color} | {color:blue} patch {color} | {color:blue} 0m 2s {color} | {color:blue}
The patch file was not named according to hbase's naming conventions. Please see https://yetus.apache.org/documentation/0.3.0/precommit-patchnames
for instructions. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 5s {color} | {color:red}
HBASE-12451 does not apply to master. Rebase required? Wrong Branch? See https://yetus.apache.org/documentation/0.3.0/precommit-patchnames
for help. {color} |
\\
\\
|| Subsystem || Report/Notes ||
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12734124/HBASE-12451-v2.diff
|
| JIRA Issue | HBASE-12451 |
| Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/3822/console |
| Powered by | Apache Yetus 0.3.0   http://yetus.apache.org |


This message was automatically generated.



> IncreasingToUpperBoundRegionSplitPolicy may cause unnecessary region splits in rolling
update of cluster
> --------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-12451
>                 URL: https://issues.apache.org/jira/browse/HBASE-12451
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Liu Shaohui
>            Assignee: Liu Shaohui
>            Priority: Minor
>             Fix For: 2.0.0
>
>         Attachments: HBASE-12451-v1.diff, HBASE-12451-v2.diff
>
>
> Currently IncreasingToUpperBoundRegionSplitPolicy is the default region split policy.
In this policy, split size is the number of regions that are on this server that all are of
the same table, cubed, times 2x the region flush size.
> But when unloading regions of a regionserver in a cluster using region_mover.rb, the
number of regions that are on this server that all are of the same table will decrease, and
the split size will decrease too, which may cause the left region split in the regionsever.
Region Splits also happens when loading regions of a regionserver in a cluster. 
> A improvment may set a minimum split size in IncreasingToUpperBoundRegionSplitPolicy
> Suggestions are welcomed. Thanks~



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

Mime
View raw message