saveNamespace should background the writing of the FSImage files when in SafeMode ---------------------------------------------------------------------------------
Key: HDFS-1798 URL: https://issues.apache.org/jira/browse/HDFS-1798 Project: Hadoop HDFS Issue Type: Improvement Reporter: Matt Foley Even with parallel writes of the FSImage files (HDFS-1071), large clusters still typically spend 5 minutes writing the files. When in SafeMode, it should be safe to background these writes instead of waiting for them. To enable this, the namenode must be prevented from leaving SafeMode until the writes are done. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira