GitHub user sandeshh opened a pull request:
https://github.com/apache/apex-core/pull/405
APEXCORE-505 Heartbeat loop was blocked waiting for operator activatiâ¦
â¦on, the reason for this is that Stream activation(Only
BufferServerSubscriber and WindowGenerator) waits for operator activation in a
heartbeat thread. There is no need to have this synchronization, as Tuples are
pulled from the queues by the operators.
@vrozov @tweise please review
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/sandeshh/apex-core APEXCORE-505
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/apex-core/pull/405.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 #405
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commit 596b996b1aa694bb9a0924f9094ef688df23678e
Author: Sandesh Hegde <[email protected]>
Date: 2016-10-05T01:29:57Z
APEXCORE-505 Heartbeat loop was blocked waiting for operator activation,
reason for this is that Stream activation(Only BufferServerSubscriber and
WindowGenerator) waits for operator activation in heartbeat thread. After
analysis and sanity testing, we don't see the need to have the synchronization
between operator and stream activation.
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