Storage is not configured

Question

Hi, We configured a distributed cache. 2 nodes in the cache will have local storage and the local node without the local storage. Some times it works and some times We are getting the following error:
Exception in thread "main" java.lang.RuntimeException: Storage is not configured
     at com.tangosol.coherence.component.util.daemon.queueProcessor.service.DistributedCache$BinaryMap.onMissingStorage(DistributedCache.CDB:9)
     at com.tangosol.coherence.component.util.daemon.queueProcessor.service.DistributedCache$BinaryMap.put(DistributedCache.CDB:17)
     at com.tangosol.coherence.component.util.daemon.queueProcessor.service.DistributedCache$BinaryMap.put(DistributedCache.CDB:1)
     at com.tangosol.util.ConverterCollections$ConverterMap.put(ConverterCollections.java:1317)
     at com.tangosol.coherence.component.util.daemon.queueProcessor.service.DistributedCache$ViewMap.put(DistributedCache.CDB:1)
     at com.tangosol.coherence.component.util.SafeNamedCache.put(SafeNamedCache.CDB:1)
     at test.Test.runSerializable(Test.java:85)
     at test.Test.main(Test.java:35)
Thanks,
Kris

Answer 1

Hi Kris,
I can't tell from the exchange so far if this is a possibility, but I've seen very similar behavior when launching JVMs from a shell script like:
java com.tangosol.net.DefaultCacheServer &
java com.tangosol.net.DefaultCacheServer &
java -Dtangosol.coherence.distributed.localstorage=false test.Test
The problem is that the background spawn process is fast enough (and the discovery process slow enough) that the storage disabled node can in some cases start up, join its own cluster, query for membership, and exit before the storage-enabled nodes have even joined the cluster.
The simplest solution (for testing) is to place a polling loop at the beginning of the storage-disabled main() which blocks until storage-enabled nodes have been started:
NamedCache cache = ...;
DistributedCacheService service = (DistributedCacheService)cache.getCacheService();
while (service.getStorageEnabledMembers().size() == 0) { Thread.sleep(1000); }Jon Purdy
Tangosol, Inc.