Github user rxin commented on the pull request:
https://github.com/apache/spark/pull/1103#issuecomment-46406863
This LGTM actually. Makes sense to do another check within the synchronized
block in case a block is being removed by another thread.
---
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 infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
