GitHub user davies opened a pull request: https://github.com/apache/spark/pull/4810
[SPARK-6055] [PySpark] fix incorrect DataType.__eq__ The eq of DataType is not correct, class cache is not use correctly (created class can not be find by dataType), then it will create lots of classes (saved in _cached_cls), never released. Also, all same DataType have same hash code, there will be many object in a dict with the same hash code, end with hash attach, it's very slow to access this dict (depends on the implementation of CPython). You can merge this pull request into a Git repository by running: $ git pull https://github.com/davies/spark leak3 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/4810.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 #4810 ---- commit f748114279e7996386cab68f0c8bda81d242db4f Author: Davies Liu <dav...@databricks.com> Date: 2015-02-27T07:49:48Z fix incorrect DataType.__eq__ ---- --- 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. --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org