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Posted to hdfs-dev@hadoop.apache.org by "Yiqun Lin (JIRA)" <ji...@apache.org> on 2018/09/20 09:29:00 UTC
[jira] [Created] (HDFS-13928) Add the corner case testings for log
roll
Yiqun Lin created HDFS-13928:
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Summary: Add the corner case testings for log roll
Key: HDFS-13928
URL: https://issues.apache.org/jira/browse/HDFS-13928
Project: Hadoop HDFS
Issue Type: Improvement
Affects Versions: 3.1.1
Reporter: Yiqun Lin
We find some corner cases for log roll when doing jounalnode migration in our cluster. We use a online way for the migration. And there will cause some corner cases:
* Multiple in-progress edits_inprogress* files exists in edits dir, if log roll is updated correctly. In this case, we can divide this into two cases:
1.With redundant in-progress file with higher txid than current in-progress file
2.With redundant in-progress file with lower txid than current in-progress file
* In a HA mode, SBN is down, what's the behavior of log roll will become?
We can complete the log roll UTs for above cases.
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