Tsz Wo (Nicholas), SZE created HDFS-3540:
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Summary: Further improvement on recovery mode and edit log
toleration in branch-1
Key: HDFS-3540
URL: https://issues.apache.org/jira/browse/HDFS-3540
Project: Hadoop HDFS
Issue Type: Bug
Components: name-node
Affects Versions: 1.2.0
Reporter: Tsz Wo (Nicholas), SZE
Assignee: Tsz Wo (Nicholas), SZE
*Recovery Mode*: HDFS-3479 backported HDFS-3335 to branch-1. However, the
recovery mode feature in branch-1 is dramatically different from the recovery
mode in trunk since the edit log implementations in these two branch are
different. For example, there is UNCHECKED_REGION_LENGTH in branch-1 but not
in trunk.
*Edit Log Toleration*: HDFS-3521 added this feature to branch-1 to remedy
UNCHECKED_REGION_LENGTH and to tolerate edit log corruption.
There are overlaps between these two features. We study potential further
improvement in this issue.
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