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Posted to oak-issues@jackrabbit.apache.org by "Amit Jain (JIRA)" <ji...@apache.org> on 2016/09/22 03:56:21 UTC

[jira] [Created] (OAK-4837) Improved caching for DataStore

Amit Jain created OAK-4837:
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             Summary: Improved caching for DataStore
                 Key: OAK-4837
                 URL: https://issues.apache.org/jira/browse/OAK-4837
             Project: Jackrabbit Oak
          Issue Type: Improvement
          Components: blob
            Reporter: Amit Jain
            Assignee: Amit Jain


The current CachingDataStore implementation used with S3DataStore has certain problems:
* Lack of stats to show hit rate/miss rates for files being requested for downloads
* Lack of stats for async uploads
* Async upload functionality leaks into Backend implementations, LocalCache classes.
* The call to {{DataStore#getRecord()}} which makes multiple calls to backends which is problematic for S3 (i.e. when not being served bu cache)
* There is some functionality which is not used with Oak like length cache, sync/async touch etc. which can be removed and code simplified.



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