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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/125/
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Review request for hadoop-hdfs.
Summary
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The namenode need not be in safemode while runnign the saveNamespace command.
The saveNamespace command acquires the FSNamesystem writelock, thus preventing
anybody else from modifying the namespace.
The lease expiry thread in the LeaseManager acquires the FSNamesystem-writelock
too, so it is well protected.
This addresses bug HDFS-1508.
https://issues.apache.org/jira/browse/HDFS-1508
Diffs
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http://svn.apache.org/repos/asf/hadoop/hdfs/trunk/src/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
1040699
http://svn.apache.org/repos/asf/hadoop/hdfs/trunk/src/test/hdfs/org/apache/hadoop/hdfs/server/namenode/TestSaveNamespace.java
1040699
Diff: https://reviews.apache.org/r/125/diff
Testing
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Unit test attached
Thanks,
Dhruba
