Joerg Hoh created OAK-11521:
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Summary: Improve handling of segment cache when the filesystem
does not support last-access-time
Key: OAK-11521
URL: https://issues.apache.org/jira/browse/OAK-11521
Project: Jackrabbit Oak
Issue Type: Improvement
Components: segment-azure
Affects Versions: 1.76.0
Reporter: Joerg Hoh
The implementation the persistent disk cache relies on the support of the "last
access time" timestamp on the filesystem to work optimally. But this feature is
often disabled on an OS level because of its impact on runtime performance on
the filesystem.
This can lead to situations where the cache handling (especially the purge) is
not really behaving as expected, as the respective system call returns
something else (the javadoc of BasicFileAttributes.getLastAccessTime() mentions
the last-modified-date or the epoch).
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