connection between overlord and middlemanager

[AzamAhmadloo]

Hi.

I installed druid 0.14.1 cluster and now I have an error on my Data server for historical process:

• ConnectException: Connection refused: localhost/127.0.0.1:8081
• Caused by: java.net.ConnectException: Connection refused: localhost/127.0.0.1:8081

Now I don't know how to change this localIp (127.0.0.1) to my coordinator server Ip.

[w3z4y4]

@AzamAhmadloo
You can add hosts in your cluster.
104.xxx.xxx.xx1 overlord
104.xxx.xxx.xx2 coordinator

[w3z4y4]

@AzamAhmadloo
overlord and coordinator log file

[AzamAhmadloo]

@w3z4y4

Where are log files?
The previous log was log for run command. Do you need this log?

[w3z4y4]

@AzamAhmadloo
You can use these command to start Druid~

java `cat conf/druid/coordinator/jvm.config | xargs` -cp conf/druid/_common:conf/druid/coordinator:lib/* org.apache.druid.cli.Main server coordinator > coordinator.log  2>&1 &
java `cat conf/druid/overlord/jvm.config | xargs` -cp conf/druid/_common:conf/druid/overlord:lib/* org.apache.druid.cli.Main server overlord >overlord.log  2>&1 &

[AzamAhmadloo]

coordinator.log
overlord.log

@w3z4y4
These are log files

[AzamAhmadloo]

My error on master server fixed. Now my master server see middlemanager server correctly.
I added druid.worker.ip=192.168.0.0 to conf/druid/middlemanager/runtime.properties

The error remains on historical server:

WARN [main] org.apache.druid.discovery.DruidLeaderClient - Request[http://localhost:8081/druid/coordinator/v1/lookups/config/__default?detailed=true] failed.
org.jboss.netty.channel.ChannelException: Faulty channel in resource pool
java.net.ConnectException: Connection refused: localhost/127.0.0.1:8081

How to connect to coordinator server from historical server?

[Suroor-Ahmmad]

How did you fix this issue?

[AzamAhmadloo]

How did you fix this issue?

That was my first view of druid.
You should know zookeeper is incredibly important in your cluster and all your nodes should configure correctly about this.
This is the tip.

[stale]

This issue has been marked as stale due to 280 days of inactivity. It will be closed in 4 weeks if no further activity occurs. If this issue is still relevant, please simply write any comment. Even if closed, you can still revive the issue at any time or discuss it on the dev@druid.apache.org list. Thank you for your contributions.

[stale]

This issue has been closed due to lack of activity. If you think that is incorrect, or the issue requires additional review, you can revive the issue at any time.