Checksum fsedits
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Key: HDFS-1630
URL: https://issues.apache.org/jira/browse/HDFS-1630
Project: Hadoop HDFS
Issue Type: Improvement
Components: name-node
Reporter: Hairong Kuang
Assignee: Hairong Kuang
HDFS-903 calculates a MD5 checksum to a saved image, so that we could verify
the integrity of the image at the loading time.
The other half of the story is how to verify fsedits. Similarly we could use
the checksum approach. But since a fsedit file is growing constantly, a
checksum per file does not work. I am thinking to add a checksum per
transaction. Is it doable or too expensive?
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