Re: Is IMap.flush() consistent?

[Mehmet Dogan]

o A database write failure when calling IMap.flush() does not throw an Exception.

You are right, it should delegate map-store exception to caller side. And it will by version 2.3. 

See https://github.com/hazelcast/hazelcast/issues/250

 

o It seems that IMap.flush() is a local operation, meaning we will have to call flush() on every node?

Yes, see javadoc of IMap.flush() ;

If this map has a MapStore and write-delay-seconds is

bigger than 0 (write-behind) then this method flushes

all the local dirty entries by calling MapStore.storeAll()