GitHub user tdas opened a pull request:
https://github.com/apache/spark/pull/8405
[SPARK-10210] [STREAMING] Filter out non-existent blocks before creating
BlockRDD
When write ahead log is not enabled, a recovered streaming driver still
tries to run jobs using pre-failure block ids, and fails as the block do not
exists in-memory any more (and cannot be recovered as receiver WAL is not
enabled).
This occurs because the driver-side WAL of ReceivedBlockTracker is recovers
that past block information, and ReceiveInputDStream creates BlockRDDs even if
those blocks do not exist.
The solution in this PR is to filter out block ids that do not exist before
creating the BlockRDD. In addition, it adds unit tests to verify other logic in
ReceiverInputDStream.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tdas/spark SPARK-10210
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/8405.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 #8405
----
commit 89aaf9bcc51592c305ce24f64592268ecdaf2c6d
Author: Tathagata Das <[email protected]>
Date: 2015-08-25T00:26:55Z
Filtered out non-existent blocks before creating BlockRDD
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