Question

I have a replication cluster whit a couple of nodes – they can communicate freely between each other. I also have a Hotrod Server joining the cluster (I can see that its recognized by the other nodes). But when I connect a Hotrod Client to the server, and try to put something into the cache, I get an exception on:

• the hotrod client:
  org.infinispan.client.hotrod.exceptions.HotRodClientException:Request
for message id[4] returned server error (status=0x85):
org.infinispan.CacheException: Problems invoking command.

• the hotrod server: Caused by: org.infinispan.CacheException: Type of
data read is unknown. Id=-2147482548 is not amongst known reader
indexes.

• a node with a cachestore: WARN: Problems unmarshalling remote
command from byte buffer org.infinispan.CacheException: Type of data
read is unknown. Id=-2147482548 is not amongst known reader indexes.

Also the Hotrod client doesn’t see any of the changes provided by other nodes. If there aren’t any nodes in the cluster besides the hotrod server – everything works. If any other node (for example with a CacheListener registered) is available, I get the mentioned exceptions.

I use Infinispan 5.1.5.Final and JGroups 3.0.10.Final everywhere. Win7 64 Bit, Java 6_0_32 32bit. All nodes are working on one machine, and the cluster is built on TCP transport stack. Every node is a Java SE application. There was a similar post on the infinispan forum (https://community.jboss.org/thread/199539) but its for an older version (the update helped in this case).

Someone had a similar issue, or has any idea where I should look for the source of the problem?

Answer 1

Nevermind… Solved by myself

I’ve added a dependency to the cluster nodes pom (those which are NOT the hotrod servers):

<dependency>
  <groupId>org.infinispan</groupId>
  <artifactId>infinispan-server-hotrod</artifactId>
</dependency>