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https://issues.apache.org/jira/browse/HBASE-4742?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phabricator updated HBASE-4742:
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Attachment: D237.4.patch
Liyin updated the revision "[jira] [HBASE-4742] Split dead server's log in
parallel".
Reviewers: Kannan, khemani, Karthik, mbautin, JIRA
Address Prakash's comments.
Also I try to classify that if the distributed log splitting is true, then
the master will launch multiple threads to split the log in parallel. If the
distributed log splitting is not true, the master will launch multiple threads
to split the log in sequentially.
The motivation is to stop blocking the region server operation queue.
REVISION DETAIL
https://reviews.facebook.net/D237
AFFECTED FILES
src/main/java/org/apache/hadoop/hbase/master/ProcessServerShutdown.java
src/test/java/org/apache/hadoop/hbase/master/TestMultiRegionServerShutDown.java
> Split dead server's log in parallel
> -----------------------------------
>
> Key: HBASE-4742
> URL: https://issues.apache.org/jira/browse/HBASE-4742
> Project: HBase
> Issue Type: Improvement
> Reporter: Liyin Tang
> Assignee: Liyin Tang
> Attachments: D237.1.patch, D237.2.patch, D237.3.patch, D237.4.patch
>
>
> When one region server goes down, the master will shutdown the region server
> and split its log.
> However, splitting log is a blocking call and it would take some time.
> If more than one region server go down, the master will split its log one by
> one, which is not efficient.
> Since we have the distributed log split, we could split these logs from the
> dead servers in parallel.
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