suja s created HDFS-3736:
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Summary: Failure in starting NN due to fsimage loading failure
Key: HDFS-3736
URL: https://issues.apache.org/jira/browse/HDFS-3736
Project: Hadoop HDFS
Issue Type: Bug
Components: name-node
Reporter: suja s
Came across a situation as follows in our test environment.
NNs running in HA mode.
While uploading checkpoint, MD5 file renaming from tmp to actual file failed
due to some reason which is unknown (non IO exception).
At the same time at standby side, connection imeout occured.
This lead to tmp MD5 file and original fsimage file (ckpt fsimage file was
renamed successfully to original fsimage file) in the name dir of active NN.
On NN restart it checks for MD5 file and since it is not found, startup is
failing.
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