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https://issues.apache.org/jira/browse/HBASE-10000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13842031#comment-13842031
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Enis Soztutar commented on HBASE-10000:
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Skimmed the patch. It looks ok to me.
There is some expected slowdown, because of the parallelization (default 6) for
submitting the recoverLease() RPC's to NN might be a bit slower than doing this
from the RS's in parallel, where 6 < num_log_files < num_region_servers. I
guess we can live with it, because of the expected gain in case num_log_files >
available split log workers.
> Initiate lease recovery for outstanding WAL files at the very beginning of
> recovery
> -----------------------------------------------------------------------------------
>
> Key: HBASE-10000
> URL: https://issues.apache.org/jira/browse/HBASE-10000
> Project: HBase
> Issue Type: Improvement
> Reporter: Ted Yu
> Assignee: Ted Yu
> Fix For: 0.98.1
>
> Attachments: 10000-recover-ts-with-pb-2.txt,
> 10000-recover-ts-with-pb-3.txt, 10000-recover-ts-with-pb-4.txt, 10000-v1.txt,
> 10000-v4.txt, 10000-v5.txt, 10000-v6.txt
>
>
> At the beginning of recovery, master can send lease recovery requests
> concurrently for outstanding WAL files using a thread pool.
> Each split worker would first check whether the WAL file it processes is
> closed.
> Thanks to Nicolas Liochon and Jeffery discussion with whom gave rise to this
> idea.
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