Data Loss due to edits log truncation
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Key: HDFS-1219
URL: https://issues.apache.org/jira/browse/HDFS-1219
Project: Hadoop HDFS
Issue Type: Bug
Components: name-node
Affects Versions: 0.20.2
Reporter: Thanh Do
We found this problem almost at the same time as HDFS developers.
Basically, the edits log is truncated before fsimage.ckpt is renamed to fsimage.
Hence, any crash happens after the truncation but before the renaming will lead
to a data loss. Detailed description can be found here:
https://issues.apache.org/jira/browse/HDFS-955
This bug was found by our Failure Testing Service framework:
http://www.eecs.berkeley.edu/Pubs/TechRpts/2010/EECS-2010-98.html
For questions, please email us: Thanh Do (than...@cs.wisc.edu) and
Haryadi Gunawi (hary...@eecs.berkeley.edu
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