Hey guys!
I have a similar configuration: Host A is a master and Host B is a slave. Domain Controller is on Host A (domain.xml). Host B gets config remotely.
How can I configure cross site replication between master and slave hosts?
In the similar case Udit is trying to configure two different domain controllers (two domain.xml with different configs). Is it the only way?
Hello n.dobryukha,
Cross site replication is something different. In this case, you should not be using that. If you have only two nodes(master and slave, assuming both have a server), you can use a replicated or distributed cache and keep owners="2".
Cross site replication is used ideally in situations where you want to backup data of one cluster to other cluster i.e. across clusters. Within the same cluster, you're not supposed to implement this. In your case, master and slave both are the parts of the same cluster.
Could you explain what you mean saying
If you have only two nodes(master and slave, assuming both have a server)
?
When I launch domain.bat with default domain.xml what do I get? Cluster "master" with two nodes "server-one" & "server-two" or one node "master"? And what do I get when I launch domain.bat on the other machine? Second cluster "slave" winth two other nodes "server-one" and "server-two" or second node "slave"?
Nikita,
looking at your diagram it looks like you've successfully created a 4-node cluster. Looking at the picture, it seems like libraryCache is using distribution with two owners. Adding an entry has therefore created two copies of it: one on master/server-one and one on master/server-two, which is correct. What is not healthy however is the fact that both entries live on the same physical node: lose that node, you lose both copies.
There are two solutions:
<transport type="UDP" socket-binding="jgroups-udp"
site="${jboss.jgroups.topology.site:s1}"
rack="${jboss.jgroups.topology.rack:r1}"
machine="${jboss.jgroups.topology.machine:m1}"/>
Tristan,
I tried to "run only one server per physical box"
But it wasn't helpful
Sure
This config contains only one domain.xml (on master host). Backup options were temporary disabled or it is needed?
Tristan,
Could I provide you any additional information?
Hi Nikita,
are you sure multicast is enabled and available in your network ?
2016-03-15 15:08:01,158 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (MSC service thread 1-8) ISPN000078: Starting JGroups channel clustered
2016-03-15 15:08:01,171 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (MSC service thread 1-8) ISPN000094: Received new cluster view for channel clustered: [master:server-one|0] (1) [master:server-one]
2016-03-15 15:08:01,176 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (MSC service thread 1-8) ISPN000079: Channel clustered local address is master:server-one, physical addresses are [10.11.13.220:55200]
and
2016-03-15 14:08:47,396 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (MSC service thread 1-4) ISPN000078: Starting JGroups channel clustered
2016-03-15 14:08:47,412 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (MSC service thread 1-4) ISPN000094: Received new cluster view for channel clustered: [slave:server-one|0] (1) [slave:server-one]
2016-03-15 14:08:47,490 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (MSC service thread 1-4) ISPN000079: Channel clustered local address is slave:server-one, physical addresses are [10.17.10.187:55200]
You should see the cluster view with two nodes.
Tristan
Tristan,
Thanks for quick answer!
Earlier I published a scrennshot
Is that what you mean saying
You should see the cluster view with two nodes.
?
No, unfortunately the console is behaving wrongly here. Could you please use the CLI:
./bin/ispn-cli.sh
> connect
> /host=master/server=server-one/subsystem=datagrid-infinispan/cache-container=cluster:read-attribute(name=members)
> /host=slave/server=server-one/subsystem=datagrid-infinispan/cache-container=cluster:read-attribute(name=members)
Here is CLI log
You are disconnected at the moment. Type 'connect' to connect to the server or 'help' for the list of supported commands. [disconnected /] connect [domain@eprusarw1154:9990 /] cd /host=master/server=server-one/subsystem=datagrid-infinispan/cache-container=clustered [domain@eprusarw1154:9990 cache-container=clustered] read-attribute members [master:server-one] [domain@eprusarw1154:9990 cache-container=clustered] cd /host=slave/server=server-one/subsystem=datagrid-infinispan/cache-container=clustered [domain@eprusarw1154:9990 cache-container=clustered] read-attribute members [slave:server-one] [domain@eprusarw1154:9990 cache-container=clustered]
As I suspected: you have two separate "one node" clusters. Is multicast enabled on your network ? If not you should consider alternative PING implementations.
Is multicast enabled on your network ?
Host 10.11.13.220
> netsh interface ip show joins Interface 1: Loopback Pseudo-Interface 1 Scope References Last Address ---------- ---------- ---- --------------------------------- 0 2 Yes 239.255.255.250 Interface 11: Local Area Connection Scope References Last Address ---------- ---------- ---- --------------------------------- 0 0 No 224.0.0.1 0 1 Yes 224.0.0.252 0 1 Yes 234.99.54.15 0 1 Yes 239.255.255.250 Interface 16: Local Area Connection 2 Scope References Last Address ---------- ---------- ---- --------------------------------- 0 0 Yes 224.0.0.1
Host 10.17.10.187
> netsh interface ip show joins Interface 1: Loopback Pseudo-Interface 1 Scope References Last Address ---------- ---------- ---- --------------------------------- 0 1 Yes 239.255.255.250 Interface 12: Local Area Connection Scope References Last Address ---------- ---------- ---- --------------------------------- 0 0 No 224.0.0.1 0 1 Yes 224.0.0.251 0 1 No 224.0.0.252 0 1 Yes 234.99.54.15 0 1 No 239.255.255.250 Interface 14: VirtualBox Host-Only Network Scope References Last Address ---------- ---------- ---- --------------------------------- 0 0 Yes 224.0.0.1 0 1 Yes 224.0.0.252 0 1 Yes 239.77.124.213 0 1 Yes 239.255.255.250 Interface 17: Local Area Connection 2 Scope References Last Address ---------- ---------- ---- --------------------------------- 0 0 Yes 224.0.0.1
If not you should consider alternative PING implementations.
I've changed my domain.xml
... <stack name="udp"> <transport type="UDP" socket-binding="jgroups-udp"/> <!--<protocol type="PING"/>--> <protocol type="TCPPING"> <property name="initial_hosts"> 10.11.13.220[7600],10.17.10.187[7600] </property> </protocol> <protocol type="MERGE3"/> <protocol type="FD_SOCK" socket-binding="jgroups-udp-fd"/> <protocol type="FD_ALL"/> <protocol type="VERIFY_SUSPECT"/> <protocol type="pbcast.NAKACK2"/> <protocol type="UNICAST3"/> <protocol type="pbcast.STABLE"/> <protocol type="pbcast.GMS"/> <protocol type="UFC"/> <protocol type="MFC"/> <protocol type="FRAG2"/> </stack> ...
But it didn't help.