AssertionException poll() blocking call can only be called on the thread of the Service

Hello

When we do the getCache, we get the above error. Need suggestions how to solve this problem.

The requirement:

We have a feature that happens in the coherence, which should do a search on a map. This map is stored in another cache.

When we try to access this card, we get the above error.

The easiest way to resolve this would be to set up a poll thread for your service (put a positive thread count in your operational config or - Dtangosol.coherence.distributed.threads = N) this way that your initial request will be processed within the pool rather than on the thread dedicated services.  Even in this case the reentrantly using consistency model is sure that if you access a cache belongs to another service and that you do not create a dependency of service cycles, i.e. A service shouts to service B, which calls to the C service which calls for A service.  These cycles of any risk of deadlock, but if you avoid the cycle and use a pool of threads then you should be good.

Otherwise if you can ensure that the other elements of the cache you want to access may reside in the same partition that the main entrance, then you can avoid the communication in the service, and the network important expensive hops and access just the partition co-located entered directly.  If for example you are in an EntryProcessor, you can mount the InvocableMap.Entry to a BinaryEntry and then call BinaryEntry.getContext () .getManager ().getBackingMapContext("otherCacheName").getBackignMapEntry (binOtherKey).  This approach later is much higher but you will need to ensure that you will only interact with the items in the same partition, i.e. associate things related by using the KeyAssociation interface.

Thank you

Mark

The Oracle coherence

Tags: Fusion Middleware

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