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Posted to issues@hbase.apache.org by "Hudson (Jira)" <ji...@apache.org> on 2022/04/07 18:48:00 UTC
[jira] [Commented] (HBASE-26618) Involving primary meta region in meta scan with CatalogReplicaLoadBalanceSimpleSelector
[ https://issues.apache.org/jira/browse/HBASE-26618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17519096#comment-17519096 ]
Hudson commented on HBASE-26618:
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Results for branch master
[build #559 on builds.a.o|https://ci-hbase.apache.org/job/HBase%20Nightly/job/master/559/]: (/) *{color:green}+1 overall{color}*
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details (if available):
(/) {color:green}+1 general checks{color}
-- For more information [see general report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/master/559/General_20Nightly_20Build_20Report/]
(/) {color:green}+1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3) report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/master/559/JDK8_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(/) {color:green}+1 jdk11 hadoop3 checks{color}
-- For more information [see jdk11 report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/master/559/JDK11_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(/) {color:green}+1 source release artifact{color}
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(/) {color:green}+1 client integration test{color}
> Involving primary meta region in meta scan with CatalogReplicaLoadBalanceSimpleSelector
> ---------------------------------------------------------------------------------------
>
> Key: HBASE-26618
> URL: https://issues.apache.org/jira/browse/HBASE-26618
> Project: HBase
> Issue Type: Improvement
> Components: meta replicas
> Affects Versions: 2.4.9
> Reporter: Huaxiang Sun
> Assignee: Huaxiang Sun
> Priority: Minor
>
> In the current release with Meta replica LoadBalance mode, the primary meta region is not serving the meta scan (only meta replica region serves the read). When the result from meta replica region is stale, it will go to primary meta region for up-to-date location.
> From our experience, the primary meta region serves very less read traffic, so it will be better to load balance read traffic across the primary meta region as well.
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