Aaron T. Myers created HDFS-5159:
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Summary: Secondary NameNode fails to checkpoint if error occurs
downloading edits on first checkpoint
Key: HDFS-5159
URL: https://issues.apache.org/jira/browse/HDFS-5159
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Affects Versions: 2.1.0-beta
Reporter: Aaron T. Myers
Assignee: Aaron T. Myers
The 2NN will avoid downloading/loading a new fsimage if its local copy of
fsimage is the same as the version on the NN. However, the decision to *load*
the fsimage from disk into memory is based only on the on-disk fsimage version.
If an error occurs between downloading and loading the fsimage on the first
checkpoint attempt, the 2NN will never load the fsimage, and then on subsequent
checkpoint attempts it will not load the on-disk fsimage and thus will never
checkpoint successfully.
Example error message in the first comment of this ticket.
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