GitHub user brkyvz opened a pull request:
https://github.com/apache/spark/pull/18603
[SPARK-21370][SS] Add test for state reliability when one read-only state
store aborts after read-write state store commits
## What changes were proposed in this pull request?
During Streaming Aggregation, we have two StateStores per task, one used as
read-only in
`StateStoreRestoreExec`, and one read-write used in `StateStoreSaveExec`.
`StateStore.abort`
will be called for these StateStores if they haven't committed their
results. We need to
make sure that `abort` in read-only store after a `commit` in the
read-write store doesn't
accidentally lead to the deletion of state.
This PR adds a test for this condition.
## How was this patch tested?
This PR adds a test.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/brkyvz/spark ss-test
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18603.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 #18603
----
commit 4783b124c365cde6a9398fc9278f8611aa4d7598
Author: Burak Yavuz <[email protected]>
Date: 2017-07-11T22:27:41Z
Added test for two concurrent state stores
----
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
