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https://issues.apache.org/jira/browse/IGNITE-10285?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16688744#comment-16688744
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ASF GitHub Bot commented on IGNITE-10285:
-----------------------------------------
GitHub user dgovorukhin opened a pull request:
https://github.com/apache/ignite/pull/5404
IGNITE-10285 Implement job stealing for U.doInParallel
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gridgain/apache-ignite ignite-10285
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/ignite/pull/5404.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #5404
----
commit 37d1310d24996966c60d673754033051f02abccb
Author: Dmitriy Govorukhin <dmitriy.govorukhin@...>
Date: 2018-11-15T22:37:40Z
IGNITE-10285 Implement job stealing for U.doInParallel in case if executor
busy and cannot perform task immediately
Signed-off-by: Dmitriy Govorukhin <[email protected]>
----
> U.doInParallel may lead to deadlock
> -----------------------------------
>
> Key: IGNITE-10285
> URL: https://issues.apache.org/jira/browse/IGNITE-10285
> Project: Ignite
> Issue Type: Bug
> Reporter: Dmitriy Govorukhin
> Assignee: Dmitriy Govorukhin
> Priority: Critical
> Fix For: 2.8
>
> Attachments: dump.rtf
>
>
> There are exist case when we can get a deadlock on the thread pool.
> If we try doInParallel in the thread of sys-pool in the number of
> hreads==sys-pool.size we lead to deadlock because threads in sys-pool will
> try doInParallel through the same sys-pool, and they will wait on future
> infinitely because no one thread cannot complete operation doInParallel which
> require threads from sys-pool.
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