giraph-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Puneet Agarwal <puagar...@yahoo.com>
Subject java.net.ConnectException: Connection refused
Date Sun, 02 Nov 2014 12:08:52 GMT
I have setup a cluster of 4 computers for running my Pregel jobs.

When running a job I often get the following error (given below).I followed another thread
in giraph forums and learnt that this problem is because of the firewall stopping network
traffic.I have stopped the firewall service on all the machines. These are machines have RHEL
5.5 and I stopped the service using the command - "service iptables stop"
But I still get the same error.
Can someone tell me what could be causing this service to be blocked on port 30001 on this
computer?
RegardsPuneet (IIT Delhi, India)
Re: Problem running the PageRank example in a cluster

|   |
|   |   |   |   |   |
| Re: Problem running the PageRank example in a clusterthis is the output of the command in
all servers:Chain INPUT (policy ACCEPT)target prot opt source destinationACCEPT tcp -- anywhere
anywhere stateNEW tcp dpts:30000:30010ACCEPT tcp -- anywhere anywhere ... |
|  |
| View on mail-archives.apache.org | Preview by Yahoo |
|  |
|   |




Error===========Using Netty without authentication.
2014-11-02 14:26:24,458 WARN org.apache.giraph.comm.netty.NettyClient: connectAllAddresses:
Future failed to connect with iHadoop3/172.21.208.178:30001 with 0 failures because of java.net.ConnectException:
Connection refused
2014-11-02 14:26:24,458 INFO org.apache.giraph.comm.netty.NettyClient: Using Netty without
authentication.
2014-11-02 14:26:24,459 INFO org.apache.giraph.comm.netty.NettyClient: connectAllAddresses:
Successfully added 0 connections, (0 total connected) 1 failed, 1 failures total.
2014-11-02 14:26:24,499 WARN org.apache.giraph.comm.netty.handler.ResponseClientHandler: exceptionCaught:
Channel failed with remote address null
java.net.ConnectException: Connection refused
	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)2014-11-02 14:26:24,459 INFO org.apache.giraph.comm.netty.NettyClient:
connectAllAddresses: Successfully added 0 connections, (0 total connected) 1 failed, 1 failures
total.
2014-11-02 14:26:24,499 WARN org.apache.giraph.comm.netty.handler.ResponseClientHandler: exceptionCaught:
Channel failed with remote address null
java.net.ConnectException: Connection refusedjava.net.ConnectException: Connection refused


Mime
View raw message