Can I create different Coherence nodes in the same cluster with defferent?

Question

Can I create different Coherence nodes in the same cluster with defferent cache-config.xml file ?
Can a cache be distributed in these deffirent nodes?

Answer 1

Yes. You can create different Coherence nodes in the same cluster with defferent cache-config.xml files as long as you use the same tangosol-coherence.xml file and the same tangosol-coherence-override.xml file. But you cannot store the cache data in the different nodes (started with different cache-config file). In other word, a node only create caches in their own's modes which are started with the same cache-config.xml file.
See the following demo:
I start a cache server using the cache config file examples-cache-server.xml. Then I start a storage-disabled cache console (cache client) using the cache config file coherence-cache-config.xml. Both of them using the same tangosol-coherence.xml file and the same tangosol-coherence-override.xml file.
The cache server uses a cache service PartitionedPofCache. But the client side is using the Distributedcache service. The cluster address is same 224.3.5.2.
The cluster name is also samme. They know each other.
D:\coherence\lib>D:\examples\java\bin\run-cache-server.cmd
D:\coherence\lib>D:\examples\java\bin\run-cache-server.cmd
The system cannot find the file D:\coherence.
The system cannot find the file C:\Oracle\Middleware\jdk160_11.
2009-12-22 12:09:31.400/4.987 Oracle Coherence 3.5.2/463 <Info> (thread=main, member=n/a): Loaded operational configurat
ion from resource "jar:file:/D:/coherence/lib/coherence.jar!/tangosol-coherence.xml"
2009-12-22 12:09:31.450/5.037 Oracle Coherence 3.5.2/463 <Info> (thread=main, member=n/a): Loaded operational overrides
from resource "jar:file:/D:/coherence/lib/coherence.jar!/tangosol-coherence-override-dev.xml"
2009-12-22 12:09:31.470/5.057 Oracle Coherence 3.5.2/463 <D5> (thread=main, member=n/a): Optional configuration override
"/tangosol-coherence-override.xml" is not specified
2009-12-22 12:09:31.540/5.127 Oracle Coherence 3.5.2/463 <D5> (thread=main, member=n/a): Optional configuration override
"/custom-mbeans.xml" is not specified
Oracle Coherence Version 3.5.2/463
Grid Edition: Development mode
Copyright (c) 2000, 2009, Oracle and/or its affiliates. All rights reserved.
2009-12-22 12:09:33.864/7.451 Oracle Coherence GE 3.5.2/463 <Info> (thread=main, member=n/a): Loaded cache configuration
from "file:/D:/examples/java/resource/config/examples-cache-config.xml"
2009-12-22 12:09:39.983/13.570 Oracle Coherence GE 3.5.2/463 <D5> (thread=Cluster, member=n/a): Service Cluster joined t
he cluster with senior service member n/a
2009-12-22 12:09:43.187/16.774 Oracle Coherence GE 3.5.2/463 <Info> (thread=Cluster, member=n/a): Created a new cluster
"cluster:0xD3FB" with Member(Id=1, Timestamp=2009-12-22 12:09:38.06, Address=192.168.8.80:8088, MachineId=24656, Locatio
n=process:144, Role=CoherenceServer, Edition=Grid Edition, Mode=Development, CpuCount=1, SocketCount=1) UID=0xC0A8085000
000125B75D888C60501F98
2009-12-22 12:09:43.508/17.095 Oracle Coherence GE 3.5.2/463 <D5> (thread=Invocation:Management, member=1): Service Mana
gement joined the cluster with senior service member 1
2009-12-22 12:09:46.582/20.169 Oracle Coherence GE 3.5.2/463 <D5> (thread=DistributedCache:PartitionedPofCache, member=1
): Service PartitionedPofCache joined the cluster with senior service member 1
2009-12-22 12:09:46.672/20.259 Oracle Coherence GE 3.5.2/463 <Info> (thread=DistributedCache:PartitionedPofCache, member
=1): Loading POF configuration from resource "file:/D:/examples/java/resource/config/examples-pof-config.xml"
2009-12-22 12:09:46.702/20.289 Oracle Coherence GE 3.5.2/463 <Info> (thread=DistributedCache:PartitionedPofCache, member
=1): Loading POF configuration from resource "jar:file:/D:/coherence/lib/coherence.jar!/coherence-pof-config.xml"
2009-12-22 12:09:47.734/21.321 Oracle Coherence GE 3.5.2/463 <Info> (thread=main, member=1): Started DefaultCacheServer.
SafeCluster: Name=cluster:0xD3FB
Group{Address=224.3.5.2, Port=35463, TTL=4}
MasterMemberSet
  ThisMember=Member(Id=1, Timestamp=2009-12-22 12:09:38.06, Address=192.168.8.80:8088, MachineId=24656, Location=process
:144, Role=CoherenceServer)
  OldestMember=Member(Id=1, Timestamp=2009-12-22 12:09:38.06, Address=192.168.8.80:8088, MachineId=24656, Location=proce
ss:144, Role=CoherenceServer)
  ActualMemberSet=MemberSet(Size=1, BitSetCount=2
    Member(Id=1, Timestamp=2009-12-22 12:09:38.06, Address=192.168.8.80:8088, MachineId=24656, Location=process:144, Rol
e=CoherenceServer)
  RecycleMillis=120000
  RecycleSet=MemberSet(Size=0, BitSetCount=0
Services
  TcpRing{TcpSocketAccepter{State=STATE_OPEN, ServerSocket=192.168.8.80:8088}, Connections=[]}
  ClusterService{Name=Cluster, State=(SERVICE_STARTED, STATE_JOINED), Id=0, Version=3.5, OldestMemberId=1}
  InvocationService{Name=Management, State=(SERVICE_STARTED), Id=1, Version=3.1, OldestMemberId=1}
  DistributedCache{Name=PartitionedPofCache, State=(SERVICE_STARTED), LocalStorage=enabled, PartitionCount=257, BackupCo
unt=1, AssignedPartitions=257, BackupPartitions=0}
2009-12-22 12:12:29.737/183.324 Oracle Coherence GE 3.5.2/463 <D5> (thread=Cluster, member=1): Member(Id=2, Timestamp=20
09-12-22 12:12:29.541, Address=192.168.8.80:8089, MachineId=24656, Location=process:1188, Role=CoherenceConsole) joined
Cluster with senior member 1
2009-12-22 12:12:30.498/184.085 Oracle Coherence GE 3.5.2/463 <D5> (thread=Cluster, member=1): Member 2 joined Service M
anagement with senior member 1
2009-12-22 12:12:31.860/185.447 Oracle Coherence GE 3.5.2/463 <D5> (thread=Cluster, member=1): TcpRing: connecting to me
mber 2 using TcpSocket{State=STATE_OPEN, Socket=Socket[addr=/192.168.8.80,port=8089,localport=2463]}
2009-12-22 12:12:51.338/204.925 Oracle Coherence GE 3.5.2/463 <D5> (thread=Cluster, member=1): Member 2 joined Service D
istributedCache with senior member 2The following command starts a cache client.
D:\coherence\bin>coherence.cmd
D:\coherence\bin>coherence.cmd
** Starting storage disabled console **
java version "1.6.0_11"
Java(TM) SE Runtime Environment (build 1.6.0_11-b03)
Java HotSpot(TM) Server VM (build 11.0-b16, mixed mode)
2009-12-22 12:12:21.054/3.425 Oracle Coherence 3.5.2/463 <Info> (thread=main, member=n/a): Loaded operational configurat
ion from resource "jar:file:/D:/coherence/lib/coherence.jar!/tangosol-coherence.xml"
2009-12-22 12:12:21.355/3.726 Oracle Coherence 3.5.2/463 <Info> (thread=main, member=n/a): Loaded operational overrides
from resource "jar:file:/D:/coherence/lib/coherence.jar!/tangosol-coherence-override-dev.xml"
2009-12-22 12:12:21.365/3.736 Oracle Coherence 3.5.2/463 <D5> (thread=main, member=n/a): Optional configuration override
"/tangosol-coherence-override.xml" is not specified
2009-12-22 12:12:21.415/3.786 Oracle Coherence 3.5.2/463 <D5> (thread=main, member=n/a): Optional configuration override
"/custom-mbeans.xml" is not specified
Oracle Coherence Version 3.5.2/463
Grid Edition: Development mode
Copyright (c) 2000, 2009, Oracle and/or its affiliates. All rights reserved.
2009-12-22 12:12:29.316/11.687 Oracle Coherence GE 3.5.2/463 <D5> (thread=Cluster, member=n/a): Service Cluster joined t
he cluster with senior service member n/a
2009-12-22 12:12:29.356/11.727 Oracle Coherence GE 3.5.2/463 <Info> (thread=Cluster, member=n/a): Failed to satisfy the
variance: allowed=16, actual=20
2009-12-22 12:12:29.356/11.727 Oracle Coherence GE 3.5.2/463 <Info> (thread=Cluster, member=n/a): Increasing allowable v
ariance to 17
2009-12-22 12:12:29.807/12.178 Oracle Coherence GE 3.5.2/463 <Info> (thread=Cluster, member=n/a): This Member(Id=2, Time
stamp=2009-12-22 12:12:29.541, Address=192.168.8.80:8089, MachineId=24656, Location=process:1188, Role=CoherenceConsole,
Edition=Grid Edition, Mode=Development, CpuCount=1, SocketCount=1) joined cluster "cluster:0xD3FB" with senior Member(I
d=1, Timestamp=2009-12-22 12:09:38.06, Address=192.168.8.80:8088, MachineId=24656, Location=process:144, Role=CoherenceS
erver, Edition=Grid Edition, Mode=Development, CpuCount=1, SocketCount=1)
2009-12-22 12:12:29.977/12.348 Oracle Coherence GE 3.5.2/463 <D5> (thread=Cluster, member=n/a): Member 1 joined Service
Management with senior member 1
2009-12-22 12:12:29.977/12.348 Oracle Coherence GE 3.5.2/463 <D5> (thread=Cluster, member=n/a): Member 1 joined Service
PartitionedPofCache with senior member 1
2009-12-22 12:12:30.578/12.949 Oracle Coherence GE 3.5.2/463 <D5> (thread=Invocation:Management, member=2): Service Mana
gement joined the cluster with senior service member 1
SafeCluster: Name=cluster:0xD3FB
Group{Address=224.3.5.2, Port=35463, TTL=4}
MasterMemberSet
  ThisMember=Member(Id=2, Timestamp=2009-12-22 12:12:29.541, Address=192.168.8.80:8089, MachineId=24656, Location=proces
s:1188, Role=CoherenceConsole)
  OldestMember=Member(Id=1, Timestamp=2009-12-22 12:09:38.06, Address=192.168.8.80:8088, MachineId=24656, Location=proce
ss:144, Role=CoherenceServer)
  ActualMemberSet=MemberSet(Size=2, BitSetCount=2
    Member(Id=1, Timestamp=2009-12-22 12:09:38.06, Address=192.168.8.80:8088, MachineId=24656, Location=process:144, Rol
e=CoherenceServer)
    Member(Id=2, Timestamp=2009-12-22 12:12:29.541, Address=192.168.8.80:8089, MachineId=24656, Location=process:1188, R
ole=CoherenceConsole)
  RecycleMillis=120000
  RecycleSet=MemberSet(Size=0, BitSetCount=0
Services
  TcpRing{TcpSocketAccepter{State=STATE_OPEN, ServerSocket=192.168.8.80:8089}, Connections=[]}
  ClusterService{Name=Cluster, State=(SERVICE_STARTED, STATE_JOINED), Id=0, Version=3.5, OldestMemberId=1}
  InvocationService{Name=Management, State=(SERVICE_STARTED), Id=1, Version=3.1, OldestMemberId=1}
Map (?):
2009-12-22 12:12:49.505/31.906 Oracle Coherence GE 3.5.2/463 <Info> (thread=main, member=2): Loaded cache configuration
from "jar:file:/D:/coherence/lib/coherence.jar!/coherence-cache-config.xml"
2009-12-22 12:12:51.358/33.729 Oracle Coherence GE 3.5.2/463 <D5> (thread=DistributedCache, member=2): Service Distribut
edCache joined the cluster with senior service member 2
<distributed-scheme>
  <!--
  To use POF serialization for this partitioned service,
  uncomment the following section
  <serializer>
  <class-
  name>com.tangosol.io.pof.ConfigurablePofContext</class-
  name>
  </serializer>
  -->
  <scheme-name>example-distributed</scheme-name>
  <service-name>DistributedCache</service-name>
  <backing-map-scheme>
    <local-scheme>
      <scheme-ref>example-binary-backing-map</scheme-ref>
    </local-scheme>
  </backing-map-scheme>
  <autostart>true</autostart>
</distributed-scheme>But when I try to store data into cache from the client side, it report error message: it's staorage-disabled. It shows that this cache console cannot store the data in the existing cache server because then using different cache config files.
Map (ca3): cache ca2
<distributed-scheme>
  <!--
  To use POF serialization for this partitioned service,
  uncomment the following section
  <serializer>
  <class-
  name>com.tangosol.io.pof.ConfigurablePofContext</class-
  name>
  </serializer>
  -->
  <scheme-name>example-distributed</scheme-name>
  <service-name>DistributedCache</service-name>
  <backing-map-scheme>
    <local-scheme>
      <scheme-ref>example-binary-backing-map</scheme-ref>
    </local-scheme>
  </backing-map-scheme>
  <autostart>true</autostart>
</distributed-scheme>
Map (ca2): put 1 one
2009-12-22 14:00:04.999/6467.370 Oracle Coherence GE 3.5.2/463 <Error> (thread=main, member=2):
java.lang.RuntimeException: Storage is not configured
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.DistributedCache$BinaryMap.onMissing
Storage(DistributedCache.CDB:9)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.DistributedCache$BinaryMap.ensureReq
uestTarget(DistributedCache.CDB:34)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.DistributedCache$BinaryMap.put(Distr
ibutedCache.CDB:22)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.DistributedCache$BinaryMap.put(Distr
ibutedCache.CDB:1)
        at com.tangosol.util.ConverterCollections$ConverterMap.put(ConverterCollections.java:1541)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.DistributedCache$ViewMap.put(Distrib
utedCache.CDB:1)
        at com.tangosol.coherence.component.util.SafeNamedCache.put(SafeNamedCache.CDB:1)
        at com.tangosol.coherence.component.application.console.Coherence.processCommand(Coherence.CDB:581)
        at com.tangosol.coherence.component.application.console.Coherence.run(Coherence.CDB:39)
        at com.tangosol.coherence.component.application.console.Coherence.main(Coherence.CDB:3)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at com.tangosol.net.CacheFactory.main(CacheFactory.java:1400)