Takenori Sato created CASSANDRA-7887:
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Summary: Skip completing a streamed file if it is identical to one
of local files
Key: CASSANDRA-7887
URL: https://issues.apache.org/jira/browse/CASSANDRA-7887
Project: Cassandra
Issue Type: Improvement
Reporter: Takenori Sato
A repair could transfer files that have been done before. Under such a
circumstance, those files would get piled up, and a user could experience
critical problems such as:
1. overwhelming compaction load
2. disk full
This leads to insufficient repairs, and data inconsistencies.
What about skipping such a file before committing its write(calling
SSTableWrite.closeAndOpenReader)? For example, by comparing MD5 hash of a
streamed file with those of local files.
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