[ https://issues.apache.org/jira/browse/SPARK-10694?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-10694: ------------------------------------ Assignee: (was: Apache Spark) > Prevent Data Loss in Spark Streaming when used with OFF_HEAP > ExternalBlockStore (Tachyon) > ----------------------------------------------------------------------------------------- > > Key: SPARK-10694 > URL: https://issues.apache.org/jira/browse/SPARK-10694 > Project: Spark > Issue Type: Bug > Components: Streaming > Affects Versions: 1.5.0 > Reporter: Dibyendu Bhattacharya > > If Streaming application stores the blocks OFF_HEAP, it may not need any WAL > like feature to recover from Driver failure. As long as the writing of blocks > to Tachyon from Streaming receiver is durable, it should be recoverable from > Tachyon directly on Driver failure. > This can solve the issue of expensive WAL write and duplicating the blocks > both in MEMORY and also WAL and also guarantee end to end No-Data-Loss > channel using OFF_HEAP store. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org