GitHub user dding3 opened a pull request: https://github.com/apache/spark/pull/15116
[SPARK-17559][MLLIB]persist edges if their storage level is none in PeriodicGraphCheckpointer ## What changes were proposed in this pull request? When use PeriodicGraphCheckpointer to persist graph, sometimes the edges isn't persisted. As currently only when vertices's storage level is none, graph is persisted. However there is a chance vertices's storage level is not none while edges's is none. Eg. graph created by a outerJoinVertices operation, vertices is automatically cached while edges is not. In this way, edges will not be persisted if we use PeriodicGraphCheckpointer do persist. We need separately check edges's storage level and persisted it if it's none. ## How was this patch tested? manual tests You can merge this pull request into a Git repository by running: $ git pull https://github.com/dding3/spark master Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/15116.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 #15116 ---- commit ad29af46b34d2d156078aba48b8e0427136fc6dd Author: ding <ding@localhost.localdomain> Date: 2016-09-15T21:39:10Z persist edges if their storage level is none ---- --- 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