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Jason Lowe commented on YARN-1185: ---------------------------------- Ah I see. That's an assumption based on a specific FileSystem implementation -- does it only work with HDFS? > FileSystemRMStateStore doesn't use temporary files when writing data > -------------------------------------------------------------------- > > Key: YARN-1185 > URL: https://issues.apache.org/jira/browse/YARN-1185 > Project: Hadoop YARN > Issue Type: Bug > Components: resourcemanager > Affects Versions: 2.1.0-beta > Reporter: Jason Lowe > > FileSystemRMStateStore writes directly to the destination file when storing > state. However if the RM were to crash in the middle of the write, the > recovery method could encounter a partially-written file and either outright > crash during recovery or silently load incomplete state. > To avoid this, the data should be written to a temporary file and renamed to > the destination file afterwards. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira