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Hudson commented on HDFS-362: ----------------------------- Integrated in Hadoop-Hdfs-trunk #928 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/928/]) Update changelog for HDFS-362 to reflect the merge. eli : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1232205 Files : * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt > FSEditLog should not writes long and short as UTF8 and should not use > ArrayWritable for writing non-array items > --------------------------------------------------------------------------------------------------------------- > > Key: HDFS-362 > URL: https://issues.apache.org/jira/browse/HDFS-362 > Project: Hadoop HDFS > Issue Type: Improvement > Components: name-node > Affects Versions: 0.23.0, 0.24.0 > Reporter: Tsz Wo (Nicholas), SZE > Assignee: Uma Maheswara Rao G > Fix For: 0.23.1 > > Attachments: HDFS-362.1.patch, HDFS-362.2.patch, HDFS-362.2b.patch, > HDFS-362.2c.patch, HDFS-362.2d.patch, HDFS-362.2d.patch, HDFS-362.2e.patch, > HDFS-362.patch > > > In FSEditLog, > - long and short are first converted to String and are further converted to > UTF8 > - For some non-array items, it first create an ArrayWritable object to hold > all the items and then writes the ArrayWritable object. > These result creating many intermediate objects which affects Namenode CPU > performance and Namenode restart. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira