NameNode and SecondaryNameNode fail to restart because of abnormal filenames.
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Key: HADOOP-6017
URL: https://issues.apache.org/jira/browse/HADOOP-6017
Project: Hadoop Core
Issue Type: Bug
Affects Versions: 0.18.3
Reporter: Raghu Angadi
Assignee: Tsz Wo (Nicholas), SZE
Priority: Blocker
Fix For: 0.18.4, 0.19.2, 0.20.1, 0.21.0
SecondaryNameNode (and NameNode) fail to load the edits log. I will include
stack trace in next comment.
This is traced to the fact that LeaseManager uses {{String.relaceFirst()}} to
replace front of a sting with another string. Unfortunately {{replaceFirst()}}
uses regex, though the first argument is {{quoted}} by the code, the second
argument is not. (the second arg is not really treated as regex but still gets
processed for back references (as in '{{sed s/first/second/g}}')
As Nicholas suggested, it is just simpler to use {{substring()}} to replace
part of the string.
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