HA: test for case where standby partially reads log and then performs checkpoint
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Key: HDFS-2766
URL: https://issues.apache.org/jira/browse/HDFS-2766
Project: Hadoop HDFS
Issue Type: Sub-task
Components: ha, name-node
Affects Versions: HA branch (HDFS-1623)
Reporter: Todd Lipcon
Assignee: Aaron T. Myers
Here's a potential bug case that we don't currently test for:
- SBN is reading a finalized edits file when NFS disappears halfway through (or
some intermittent error happens)
- SBN performs a checkpoint and uploads it to the NN
- NN receives a checkpoint that doesn't correspond to the end of any log segment
- Both NN and SBN should be able to restart at this point.
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