Hello,
I have an ES cluster that consists of two nodes. The first one is
explicitly set to be a master and the second serves as a replica. The
configuration of the nodes is following:
*Master Node:*
cluster.name: "test-es-cluster"
node.name: "primary1"
cluster.routing.allocation.awareness.force.group.values: primary, replica
cluster.routing.allocation.awareness.attributes: group
node.group: primary
node.master: true
node.data: true
bootstrap.mlockall: true
discovery.zen.minimum_master_nodes: 1
*Replica Node:*
cluster.name: "test-es-cluster"
node.name: "replica1"
cluster.routing.allocation.awareness.force.group.values: primary, replica
cluster.routing.allocation.awareness.attributes: group
node.group: replica
node.master: true
node.data: true
bootstrap.mlockall: true
discovery.zen.minimum_master_nodes: 1
Next step, I would like to explicitly connect to the replica node using a
transport client. In order to do that, I add the client as follows:
Settings settings = ImmutableSettings.settingsBuilder()
.put("cluster.name", "test-es-cluster")
.put("client.transport.ping_timeout", "10s")
.put("client.transport.sniff", false)
.build();
Client client = new TransportClient(settings)
.addTransportAddress(new InetSocketTransportAddress(hostName, hostPort));
However, when I try to send any request to the node via the client, I catch
the "No node available" exception:
org.elasticsearch.client.transport.NoNodeAvailableException: No node
available
at
org.elasticsearch.client.transport.TransportClientNodesService.execute(TransportClientNodesService.java:196)
at
org.elasticsearch.client.transport.support.InternalTransportIndicesAdminClient.execute(InternalTransportIndicesAdminClient.java:73)
at
org.elasticsearch.client.support.AbstractIndicesAdminClient.stats(AbstractIndicesAdminClient.java:425)
Interestingly, If "client.transport.sniff" is set to be true, then
everything works perfectly. But this way the client sends (round-robin)
requests to the primary node too, which I try to avoid. If someone faced
similar problem and can help to solve it, I will appreciate very much.
P.s. I run ElasticSearch 1.0.0 with AWS plugin (2.0.0.RC1) over the ec2
instances.
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