[infinispan-issues] [JBoss JIRA] (ISPN-10771) Add delivery guarantee flags for commands

[Will Burns (Jira)]

Will Burns created ISPN-10771:
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             Summary: Add delivery guarantee flags for commands
                 Key: ISPN-10771
                 URL: https://issues.jboss.org/browse/ISPN-10771
             Project: Infinispan
          Issue Type: Enhancement
          Components: Core
            Reporter: Will Burns


It could be useful to give a command an idea of a delivery guarantee such as AT_MOST_ONCE, AT_LEAST_ONCE, EXACTLY_ONCE. Currently our code tries its best to always do EXACTLY_ONCE when possible. This causes some performance loss and extra memory requires for some operations when using a Store.

For example the publisher method on CacheSet when using a store, should be able to instead of using concat and removing duplicates can just use the merge method and return duplicates when AT_LEAST_ONCE is in use. This wouldn't require tracking keys either then.

Using AT_MOST_ONCE in this case is a bit more interesting, and may just stay the same as EXACTLY_ONCE though.



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