Andrew Wang created HDFS-5988:
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Summary: Bad fsimage generated after upgrade
Key: HDFS-5988
URL: https://issues.apache.org/jira/browse/HDFS-5988
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Affects Versions: 2.4.0
Reporter: Andrew Wang
Assignee: Andrew Wang
Priority: Blocker
Internal testing revealed an issue where, after upgrading from an earlier
release, we always fail to save a correct PB-based fsimage (namely, missing
inodes leading to an inconsistent namespace). This results in substantial data
loss, since the upgraded fsimage is broken, as well as the fsimages generated
by saveNamespace and checkpointing.
This ended up being a bug in the old fsimage loading code, patch coming.
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