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https://issues.apache.org/jira/browse/HBASE-26235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17406996#comment-17406996
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Hudson commented on HBASE-26235:
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Results for branch master
[build #380 on
builds.a.o|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/master/380/]:
(x) *{color:red}-1 overall{color}*
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details (if available):
(/) {color:green}+1 general checks{color}
-- For more information [see general
report|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/master/380/General_20Nightly_20Build_20Report/]
(/) {color:green}+1 jdk8 hadoop3 checks{color}
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(x) {color:red}-1 jdk11 hadoop3 checks{color}
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(/) {color:green}+1 source release artifact{color}
-- See build output for details.
(/) {color:green}+1 client integration test{color}
> We could start RegionServerTracker before becoming active master
> ----------------------------------------------------------------
>
> Key: HBASE-26235
> URL: https://issues.apache.org/jira/browse/HBASE-26235
> Project: HBase
> Issue Type: Sub-task
> Components: master, Zookeeper
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Major
> Fix For: 2.5.0, 3.0.0-alpha-2
>
>
> The direct reason is that, after decoupling, HMaster does not extends
> HRegionServer, so we do not have RegionServerAddressTracker now, so for
> backup masters we do not have a way to get all the region server which means
> it can not serve as connection registry any more, so we need to find a way to
> let backup masters to also have a way to get the region server list.
> But in general, since we already have a class in HMaster which is used to
> track region servers, we'd better reuse it. And after this change, the backup
> masters could also be used as the fallback servers for getting region server
> list in HBASE-26220, which could also reduce the load of active master.
> And this could also speed up the active master start process as we could save
> one zookeeper scan when becoming active master.
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