[infinispan-issues] [JBoss JIRA] (ISPN-12008) RocksDB: remove expiration buckets

[Dan Berindei (Jira)]

Dan Berindei created ISPN-12008:
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             Summary: RocksDB: remove expiration buckets
                 Key: ISPN-12008
                 URL: https://issues.redhat.com/browse/ISPN-12008
             Project: Infinispan
          Issue Type: Sub-task
          Components: Loaders and Stores
            Reporter: Dan Berindei
             Fix For: 12.0.0.Final


The expiration DB stores keys grouped by their expiration timestamp, in milliseconds. The chances of collision are pretty low, but having expiration information grouped by timestamp requires us to read the existing "bucket" every time we store an entry with expiration information.

Changing the format of the expiration DB to {{key = <expiration timestamp> + <key bytes>, value = <nothing>}} would allow us to assume that the expiration key is unique.

 



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