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https://issues.apache.org/jira/browse/KUDU-2612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17283773#comment-17283773
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ASF subversion and git services commented on KUDU-2612:
-------------------------------------------------------
Commit fa5fdd8532efa3a634eaba1fea4552f66d881623 in kudu's branch
refs/heads/master from Alexey Serbin
[ https://gitbox.apache.org/repos/asf?p=kudu.git;h=fa5fdd8 ]
KUDU-2612: non-zero queue size for txn-commit pool
I found my new tests for the automatic txn participant registration
often hit the following CHECK():
F0212 06:49:33.448449 611 txn_status_manager.cc:371] Check failed: _s.ok()
Bad status: Service unavailable: Thread pool is at capacity (10/10 tasks
running, 2/0 tasks queued)
As I can see, the code in
CommitTasks::Schedule{AbortTxn,FinalizeCommit}Write() doesn't handle
the condition of running out of the "txn-commit" pool's queue. That
means the pool is supposed to have an unlimited queue size, like other
pools which exhibit similar behaviour: e.g., the pool for removing
tablets, the pool for opening tablets, etc. Indeed, since the number of
concurrently opened multi-row transactions isn't limited,
TxnStatusManager should be able handle the case when many transactions
are being aborted and committed simultaneously.
This patch removes the queue size limit for the "txn-commit" pool
(effectively setting it to INT_MAX), mirroring the behavior of the
"tablet-open" and "tablet-delete" pools.
Change-Id: Idb3de2fd41936862eec8f2616096db16ff86c070
Reviewed-on: http://gerrit.cloudera.org:8080/17059
Reviewed-by: Andrew Wong <[email protected]>
Tested-by: Alexey Serbin <[email protected]>
> Implement multi-row transactions
> --------------------------------
>
> Key: KUDU-2612
> URL: https://issues.apache.org/jira/browse/KUDU-2612
> Project: Kudu
> Issue Type: Task
> Reporter: Mike Percy
> Priority: Major
> Labels: roadmap-candidate
>
> Tracking Jira to implement multi-row / multi-table transactions in Kudu.
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