[infinispan-issues] [JBoss JIRA] (ISPN-5631) NearCache: ability di wait for other Java HotRod clients to invalidate lazy near cache on remove

[Enrico Olivelli (JIRA)]

Enrico Olivelli created ISPN-5631:
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             Summary: NearCache: ability di wait for other Java HotRod clients to invalidate lazy near cache on remove
                 Key: ISPN-5631
                 URL: https://issues.jboss.org/browse/ISPN-5631
             Project: Infinispan
          Issue Type: Feature Request
          Components: Core
    Affects Versions: 7.2.3.Final
         Environment: Java hotrod client/server
            Reporter: Enrico Olivelli


When a Java HotRod client invalidates (remove) an entry it is possibile that this action is not propagated with enough speed to other clients due to the async nature of event notifcations used by NearCache, an so it is possibile that another client looks up a stale entry from its near cache.

A typical "writer client" scenario is:
- update the database and commit the transaction
- invalidate the entry which represents the updated (only a "remove")

The "reader" procedure is:
- lookup in the cache (nearcache, backed by the remote Infinispan cluster)
- in case of "cache miss" perform a lookup on the database and write the entry in the cache







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