groups

[Duke Tantiprasut]

Hi All,

 

I'm having trouble creating separate groups for the hazelcast clusters. Both JVMs are running on the same localhost. The stdout on startup does show that they're picking up the correct config files however 2 members are still being discovered. Does the <group> only apply to multicast discovery ?

 

Thanks

Duke

 

<hazelcast>

    <group>

        <name>rsview</name>

        <password>resolve</password>

    </group>

    <network>

        <port auto-increment="true">5701</port>

        <join>

            <multicast enabled="false">

                <multicast-group>224.2.2.3</multicast-group>

                <multicast-port>54327</multicast-port>

            </multicast>

            <tcp-ip enabled="true">

                <interface>127.0.0.1</interface>

            </tcp-ip>

        </join>

        <interfaces enabled="true">

            <interface>127.0.0.1</interface>

        </interfaces>

...

 

and

 

<hazelcast>

    <group>

        <name>rscontrol</name>

        <password>resolve</password>

    </group>

    <network>

        <port auto-increment="true">5701</port>

        <join>

            <multicast enabled="false">

                <multicast-group>224.2.2.3</multicast-group>

                <multicast-port>54327</multicast-port>

            </multicast>

            <tcp-ip enabled="true">

                <interface>127.0.0.1</interface>

            </tcp-ip>

        </join>

        <interfaces enabled="true">

            <interface>127.0.0.1</interface>

        </interfaces>

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[Ricky Hazelwood]

Funny how I was about to raise the same issue. I am having the same problem in my different environments. By the looks of it, tcp-ip lookup ignores the group details. For time being you can turn off tcp-ip

Cheers,

Ricky

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[Talip Ozturk]

This issue was reported before by someone else. Multicast-join was
checking the group name/password but TCP-join wasn't.

http://code.google.com/p/hazelcast/issues/detail?id=151

It is actually fixed about a month ago. Please download and try the
latest snapshot.

btw. here is the test case for this. this test is part of our cluster
test suite.
@Test(timeout = 60000)
public void testDifferentGroups() {
Config c1 = new XmlConfigBuilder().build();
c1.getNetworkConfig().getJoin().getMulticastConfig().setEnabled(false);
c1.getNetworkConfig().getInterfaces().clear();
c1.getNetworkConfig().getInterfaces().addInterface("127.0.0.1");
c1.getNetworkConfig().getInterfaces().setEnabled(true);
Config c2 = new XmlConfigBuilder().build();
c2.getNetworkConfig().getJoin().getMulticastConfig().setEnabled(false);
c2.getNetworkConfig().getInterfaces().clear();
c2.getNetworkConfig().getInterfaces().addInterface("127.0.0.1");
c2.getNetworkConfig().getInterfaces().setEnabled(true);
HazelcastInstance h1 = Hazelcast.newHazelcastInstance(c1);
HazelcastInstance h2 = Hazelcast.newHazelcastInstance(c2);
assertEquals(2, h1.getCluster().getMembers().size());
assertEquals(2, h2.getCluster().getMembers().size());
Hazelcast.shutdownAll();
c2.setGroupName("differentGroup");
h1 = Hazelcast.newHazelcastInstance(c1);
h2 = Hazelcast.newHazelcastInstance(c2);
assertEquals(1, h1.getCluster().getMembers().size());
assertEquals(1, h2.getCluster().getMembers().size());
}


-talip

[Duke Tantiprasut]

Thanks guys.

 

I'll download the snapshot and give that a go.

Cheers

Duke