Jun Jin created MAPREDUCE-4917:
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Summary: multiple BlockFixer should be supported in order to
improve scalability and reduce too much work on single BlockFixer
Key: MAPREDUCE-4917
URL: https://issues.apache.org/jira/browse/MAPREDUCE-4917
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: contrib/raid
Affects Versions: 0.22.0
Reporter: Jun Jin
Assignee: Jun Jin
Fix For: 0.22.0
current implementation can only run single BlockFixer since the fsck (in
RaidDFSUtil.getCorruptFiles) only check the whole DFS file system. multiple
BlockFixer will do the same thing and try to fix same file if multiple
BlockFixer launched.
the change/fix will be mainly in BlockFixer.java and
RaidDFSUtil.getCorruptFile(), to enable fsck to check the different paths
defined in separated Raid.xml for single RaidNode/BlockFixer
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