CODEWITHSUNDEEP
javascalahazelcastvert.x
Moshe Shwarzberg
Moshe Shwarzberg

Reputation: 93

How do I bind a hazelcast node to a specific ip address?

I tried running this code, but it gives me an error. It seems that I can't bind to a specific ip address; rather I need to bind to a network interface. is there any way around this issue?

import io.vertx.core.VertxOptions
import io.vertx.reactivex.core.Vertx
import io.vertx.spi.cluster.hazelcast.{ ConfigUtil, HazelcastClusterManager }

object Test extends App {
  val host = "127.0.0.2"
  def getConfig(): Config = {
    import scala.collection.JavaConverters._
    val config = ConfigUtil.loadConfig()
    config.setProperty("hazelcast.socket.bind.any", "false")
    config
      .getNetworkConfig
      .setPortAutoIncrement(false)
      .getInterfaces
      .setEnabled(true)
      .setInterfaces(List(s"127.0.0.2").asJava)
    val joinConfig = config.getNetworkConfig.getJoin

    joinConfig
      .getMulticastConfig
      .setEnabled(false)

    config
  }
  def run(): Unit = {
    val mgr = new HazelcastClusterManager(getConfig())
    val options = new VertxOptions().setClusterManager(mgr)
    options.getEventBusOptions.setHost(host)
    val vrtx = Vertx.rxClusteredVertx(options).blockingGet()
  }
  run()
}

I'm getting java.lang.RuntimeException: Hazelcast CANNOT start on this node. No matching network interface found.

Upvotes: 1

Views: 4115

Answers (2)

danissimo
danissimo

Reputation: 442

I use Hazelcast IMDG Open Source Edition 3.12, or simply hazelcast 3.12. My config is

hazelcast:
  network:
    interfaces:
      enabled: true
      interfaces: [127.0.0.11]
    port:
      auto-increment: false
    join:
      multicast:
        enabled: false
      tcp-ip:
        enabled: true
        interface: 127.0.0.11

and it failed to start with the same error as the OP reported:

Interfaces is enabled, trying to pick one address matching to one of: [127.0.0.11, 127.0.0.11]
...
Hazelcast CANNOT start on this node. No matching network interface found.

Then I added the 127.0.0.11 IP address to my lo0 interface as the OP commented, and voilà—it got working.

Upvotes: 0

Gokhan Oner
Gokhan Oner

Reputation: 3257

Check this section of the documentation & the link in the doc: https://docs.hazelcast.org/docs/latest/manual/html-single/index.html#discovering-members-by-tcp

What you need is to disable Hazelcast to bind all interfaces by setting hazelcast.socket.bind.any to false. Then, you can use the Interfaces as described in here: https://docs.hazelcast.org/docs/latest/manual/html-single/index.html#interfaces

Upvotes: 0

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