GitHub user brkyvz opened a pull request:
https://github.com/apache/spark/pull/9695
[SPARK-11731][STREAMING] Enable batching on Driver WriteAheadLog by default
Using batching on the driver for the WriteAheadLog should be an improvement
for all environments and use cases. Users will be able to scale to much higher
number of receivers with the BatchedWriteAheadLog. Therefore we should turn it
on by default, and QA it in the QA period.
I've also added some tests to make sure the default configurations are
correct regarding recent additions:
- batching on by default
- closeFileAfterWrite off by default
- parallelRecovery off by default
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/brkyvz/spark enable-batch-wal
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/9695.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 #9695
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commit dfe29b85b92307b43adc60681f0b95b69ee30f4f
Author: Burak Yavuz <[email protected]>
Date: 2015-11-13T17:37:13Z
Enable batching on Driver WriteAheadLog by default
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