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https://issues.apache.org/jira/browse/HBASE-20727?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16517691#comment-16517691
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Hudson commented on HBASE-20727:
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Results for branch master
        [build #370 on 
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/master/370/]: (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://builds.apache.org/job/HBase%20Nightly/job/master/370//General_Nightly_Build_Report/]




(x) {color:red}-1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2) 
report|https://builds.apache.org/job/HBase%20Nightly/job/master/370//JDK8_Nightly_Build_Report_(Hadoop2)/]


(x) {color:red}-1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3) 
report|https://builds.apache.org/job/HBase%20Nightly/job/master/370//JDK8_Nightly_Build_Report_(Hadoop3)/]


(/) {color:green}+1 source release artifact{color}
-- See build output for details.


(/) {color:green}+1 client integration test{color}


> Persist FlushedSequenceId to speed up WAL split after cluster restart
> ---------------------------------------------------------------------
>
>                 Key: HBASE-20727
>                 URL: https://issues.apache.org/jira/browse/HBASE-20727
>             Project: HBase
>          Issue Type: New Feature
>    Affects Versions: 2.0.0
>            Reporter: Allan Yang
>            Assignee: Allan Yang
>            Priority: Major
>             Fix For: 3.0.0
>
>         Attachments: HBASE-20727.002.patch, HBASE-20727.003.patch, 
> HBASE-20727.004.patch, HBASE-20727.005.patch, HBASE-20727.patch
>
>
> We use flushedSequenceIdByRegion and storeFlushedSequenceIdsByRegion in 
> ServerManager to record the latest flushed seqids of regions and stores. So 
> during log split, we can use seqids stored in those maps to filter out the 
> edits which do not need to be replayed. But, those maps are not persisted. 
> After cluster restart or master restart, info of flushed seqids are all lost. 
> Here I offer a way to persist those info to HDFS, even if master restart, we 
> can still use those info to filter WAL edits and then to speed up replay.



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