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https://issues.apache.org/jira/browse/AURORA-1823?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephan Erb updated AURORA-1823:
--------------------------------
Fix Version/s: 0.17.0
> `createJob` API uses single thread to move all tasks to PENDING
> ----------------------------------------------------------------
>
> Key: AURORA-1823
> URL: https://issues.apache.org/jira/browse/AURORA-1823
> Project: Aurora
> Issue Type: Bug
> Reporter: Zameer Manji
> Assignee: Zameer Manji
> Priority: Minor
> Fix For: 0.17.0
>
>
> If you create a single job with many tasks (lets say 10k+) the `createJob`
> API will take a long time. This is because the `createJob` API only returns
> when all of the tasks have moved to PENDING and it uses a single thread to do
> so. Here is a snippet of the logs:
> {noformat}
> ...
> I1116 17:11:53.964 [qtp1219612889-50, StateMachine$Builder:389]
> sparker1-devel-echo-8017fae7-f592-49c7-bfef-fac912abecaa-57114-8aff8e77-3bde-4a83-99eb-8c6e52f14a7a
> state machine transition INIT -> PENDING
> I1116 17:11:53.965 [qtp1219612889-50, TaskStateMachine:474] Adding work
> command SAVE_STATE for
> sparker1-devel-echo-8017fae7-f592-49c7-bfef-fac912abecaa-57114-8aff8e77-3bde-4a83-99eb-8c6e52f14a7a
> I1116 17:11:54.094 [qtp1219612889-50, StateMachine$Builder:389]
> sparker1-devel-echo-8017fae7-f592-49c7-bfef-fac912abecaa-57115-f5baa93f-78af-470d-bcdf-1d86c0b98c80
> state machine transition INIT -> PENDING
> I1116 17:11:54.094 [qtp1219612889-50, TaskStateMachine:474] Adding work
> command SAVE_STATE for
> sparker1-devel-echo-8017fae7-f592-49c7-bfef-fac912abecaa-57115-f5baa93f-78af-470d-bcdf-1d86c0b98c80
> I1116 17:11:54.223 [qtp1219612889-50, StateMachine$Builder:389]
> sparker1-devel-echo-8017fae7-f592-49c7-bfef-fac912abecaa-57116-0553d98c-f5de-4857-9a70-c5c748ddee03
> state machine transition INIT -> PENDING
> I1116 17:11:54.224 [qtp1219612889-50, TaskStateMachine:474] Adding work
> command SAVE_STATE for
> sparker1-devel-echo-8017fae7-f592-49c7-bfef-fac912abecaa-57116-0553d98c-f5de-4857-9a70-c5c748ddee03
> I1116 17:11:54.353 [qtp1219612889-50, StateMachine$Builder:389]
> sparker1-devel-echo-8017fae7-f592-49c7-bfef-fac912abecaa-57117-46e168f6-8753-4be0-873d-f18d1f562570
> state machine transition INIT -> PENDING
> I1116 17:11:54.353 [qtp1219612889-50, TaskStateMachine:474] Adding work
> command SAVE_STATE for
> sparker1-devel-echo-8017fae7-f592-49c7-bfef-fac912abecaa-57117-46e168f6-8753-4be0-873d-f18d1f562570
> I1116 17:11:54.482 [qtp1219612889-50, StateMachine$Builder:389]
> sparker1-devel-echo-8017fae7-f592-49c7-bfef-fac912abecaa-57118-ac94b4fb-f319-4ca2-b788-2ee093ef1c67
> state machine transition INIT -> PENDING
> I1116 17:11:54.482 [qtp1219612889-50, TaskStateMachine:474] Adding work
> command SAVE_STATE for
> sparker1-devel-echo-8017fae7-f592-49c7-bfef-fac912abecaa-57118-ac94b4fb-f319-4ca2-b788-2ee093ef1c67
> I1116 17:11:54.611 [qtp1219612889-50, StateMachine$Builder:389]
> sparker1-devel-echo-8017fae7-f592-49c7-bfef-fac912abecaa-57119-060ef7fc-7e17-4f8c-83dc-216550332153
> state machine transition INIT -> PENDING
> I1116 17:11:54.612 [qtp1219612889-50, TaskStateMachine:474] Adding work
> command SAVE_STATE for
> sparker1-devel-echo-8017fae7-f592-49c7-bfef-fac912abecaa-57119-060ef7fc-7e17-4f8c-83dc-216550332153
> I1116 17:11:54.741 [qtp1219612889-50, StateMachine$Builder:389]
> sparker1-devel-echo-8017fae7-f592-49c7-bfef-fac912abecaa-57120-c163c750-3658-44b7-b1ea-43f5d503f7c9
> state machine transition INIT -> PENDING
> I1116 17:11:54.742 [qtp1219612889-50, TaskStateMachine:474] Adding work
> command SAVE_STATE for
> sparker1-devel-echo-8017fae7-f592-49c7-bfef-fac912abecaa-57120-c163c750-3658-44b7-b1ea-43f5d503f7c9
> ...
> {noformat}
> Observe that a single jetty thread is doing this.
> We should leverage {{BatchWorker}} to have concurrent mutations here.
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