Yifan Cai created CASSANDRA-16149:
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Summary: Record the expiration time for hints files to avoid
loading expired ones
Key: CASSANDRA-16149
URL: https://issues.apache.org/jira/browse/CASSANDRA-16149
Project: Cassandra
Issue Type: Improvement
Components: Local/Other
Reporter: Yifan Cai
The expiration time of a hints file is considered to be the latest expiration
time among all the hints in the file. If the current time exceeds the file
expiration time, the file can be safely deleted.
The expiration time can be determined when finishing writing to the hints file.
The tricky part is that each hints file keeps the metadata at the header of the
file, but the expiration time is only known at the end. So we may want to save
the metadata in a companion file of the hints. This approach is also
future-proof, in that case that we want to add more metadata.
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