GitHub user kishorvpatil opened a pull request:
https://github.com/apache/storm/pull/324
[STORM-569] Add Configuration to enable/disable Bolt's outgoing
overflow-buffer
- Added topology level flag
`topology.bolts.outgoing.overflow.buffer.enable` - which defaults to `true`
- Create bolt's overflow buffer only if
`topology.bolts.outgoing.overflow.buffer.enable` is set
- tested manually using topology with cyclic flow for below scenarios for
both
- When set to`false` executors hit live-lock and get restarted as
`DisruptorQueue` get full
- When set to `true` executors use overflow buffer to handle spikes and
instead of live-lock, they consume more memory.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kishorvpatil/incubator-storm config-obuffer
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/storm/pull/324.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 #324
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commit ccef637701f8dfa88ad2aaa6933549267ece1b0a
Author: Kishor Patil <[email protected]>
Date: 2014-11-21T13:34:52Z
Add Configuration to enable/disable Bolt's outgoing overflow-buffer
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