[ https://issues.apache.org/jira/browse/SPARK-26418?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Marcelo Masiero Vanzin resolved SPARK-26418. -------------------------------------------- Resolution: Duplicate > Only OpenBlocks without any ChunkFetch for one stream will cause memory leak > in ExternalShuffleService > ------------------------------------------------------------------------------------------------------ > > Key: SPARK-26418 > URL: https://issues.apache.org/jira/browse/SPARK-26418 > Project: Spark > Issue Type: Bug > Components: Shuffle > Affects Versions: 2.4.0 > Reporter: Wang Shuo > Priority: Major > > In current code path, OneForOneStreamManager holds StreamState in a Map > named streams. > A StreamState is initialized and put into streams when OpenBlocks request > received. > One specific StreamState is removed from streams in two scenarios below: > # The last chunk of a stream is fetched > # The connection of ChunkFetch is closed > StreamState will never be clean up, if OpenBlocks request is received without > and following ChunkFetch request. This will cause memory leak in server > side, which is harmful for long running service such as > ExternalShuffleService. > -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org