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From "Robert Nettleton (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-12224) Ambari should not configure hbase.regionserver.global.memstore.upperLimit in HDP-2.3
Date Tue, 14 Jul 2015 14:36:14 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-12224?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Nettleton updated AMBARI-12224:
--------------------------------------
    Fix Version/s:     (was: 2.1.0)
                   2.1.1

> Ambari should not configure hbase.regionserver.global.memstore.upperLimit in HDP-2.3
> ------------------------------------------------------------------------------------
>
>                 Key: AMBARI-12224
>                 URL: https://issues.apache.org/jira/browse/AMBARI-12224
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.1.0
>            Reporter: Myroslav Papirkovskyy
>            Assignee: Dmitry Lysnichenko
>            Priority: Critical
>             Fix For: 2.1.1
>
>         Attachments: AMBARI-12224.2.patch, AMBARI-12224.4.patch
>
>
> HBase has deprecated {{hbase.regionserver.global.memstore.upperLimit}} and {{hbase.regionserver.global.memstore.lowerLimit}}
for HDP-2.3 in favor of {{hbase.regionserver.global.memstore.size}} and {{hbase.regionserver.global.memstore.size.lower.limit}}.

> The slider called "% of RegionServer Allocated to Write Buffers" sets {{hbase.regionserver.global.memstore.size}},
while {{hbase.regionserver.global.memstore.upperLimit}} is in the advanced configuration section.
This leaves two bugs: 
>  - In HDP-2.2, the slider has no affect since HBase basically ignores the parameter.
>  - In HDP-2.3 the value set by the slider also has no affect since the deprecated values
set take precedence. 
> One solution is to get rid of {{hbase.regionserver.global.memstore.upperLimit}} and {{hbase.regionserver.global.memstore.lowerLimit}}
in advanced settings in Ambari, and make the slider configuration to use {{hbase.regionserver.global.memstore.upperLimit}}
in HDP-2.2 and {{hbase.regionserver.global.memstore.size}} in HDP-2.3. Rolling upgrade can
convert these settings. 



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