GitHub user xuanyuanking opened a pull request: https://github.com/apache/spark/pull/16350
[SPARK-18700][SQL][BACKPORT-2.0] Add StripedLock for each table's relation in cache ## What changes were proposed in this pull request? Backport of #16135 to branch-2.0 ## How was this patch tested? Because of the diff between branch-2.0 and master/2.1, here add a multi-thread access table test in `HiveMetadataCacheSuite` and check it only loading once using metrics in `HiveCatalogMetrics` You can merge this pull request into a Git repository by running: $ git pull https://github.com/xuanyuanking/spark SPARK-18700-2.0 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/16350.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 #16350 ---- commit 132d12ee1457c41a0bec56516ab5a41d36d8ac1f Author: xuanyuanking <xyliyuanj...@gmail.com> Date: 2016-12-20T10:50:03Z SPARK-18700: Add StripedLock for each table's relation in cache ---- --- 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