[jboss-jira] [JBoss JIRA] Resolved: (JGRP-168) RpcDispatcher fails after shun

RpcDispatcher fails after shun ------------------------------ Key: JGRP-168 URL: http://jira.jboss.com/jira/browse/JGRP-168 Project: JGroups Issue Type: Bug Affects Versions: 2.2.8 Environment: Linux Reporter: sriram Assigned To: Bela Ban Fix For: 2.6 Attachments: RpcDispatcherBlocking.java, udp.xml There are two members in a group say A and B. They call remote methods on each other using RpcDistatcher over PullPushAdapter. PullPushAdapter adapter=new PullPushAdapter(channel,this); rpc=new RpcDispatcher(adapter,null,null,null,new RemoteCallHandler()); This is the code executed to make a remote RPC call. Vector dest=view.getMembers(); rpc.callRemoteMethods(dest,methCall,GroupRequest.GET_NONE,0); I freeze a member "A" (crtl-Z in linux) to simulate a shun. "B" gets a viewAccepted notification that "A" is out of the group. Now I unfreeze "A" (fg in linux). "A" is now shunned and it reconnects and joins the group. (AUTO_RECONNECT configured as true in JChannel) Issue: "A" is not receiving any method calls made by "B". On analysis I found that RequestCorrelator in "A" is rejecting the rpc packets sent from "B". The error message given in "A" was discarded request from 172.16.1.198:1196 as we are not part of destination list (local_addr=172.16.1.198:1190, hdr=[Header: name=MessageDispatcher, type=REQ, id=1135858151530, rsp_expected=false], dest_mbrs=[172.16.1.193:1439, 172.16.1.198:1196]) Note that 172.16.1.198:1190 is the old address of "A" before shun/reconnect. 172.16.1.198:1196 is the new address of "A" after reconnect. 172.16.1.193:1439 is the address of "B" The bug is that the local_addr field in RequestCorrelator.java is not updated when the member reconnects. Any workarounds for this problem will be appreciated. thanks, E.Sriram Code snippets: Creating the Channel and Blocks String props="UDP(mcast_addr=229.2.3.4;mcast_port=45556;ip_ttl=32):" +"PING(timeout=3000;num_initial_members=6;down_thread=false;up_thread=false):" +"FD(max_tries=5;timeout=5000;down_thread=false;up_thread=false):" +"MERGE2(down_thread=false;up_thread=false):" +"VERIFY_SUSPECT(timeout=1500;down_thread=false;up_thread=false):" +"pbcast.NAKACK(gc_lag=10;retransmit_timeout=600,1200,2400,4800;" +"down_thread=false;up_thread=false):" +"UNICAST(timeout=600,1200,2400,4800;down_thread=false;up_thread=false):" +"pbcast.STABLE(desired_avg_gossip=10000;down_thread=false;up_thread=false):" +"FRAG(down_thread=false;up_thread=false):" +"pbcast.GMS(join_timeout=5000;join_retry_timeout=2000;" +"shun=true;print_local_addr=true)"; channel=new JChannel(props); channel.setOpt(JChannel.AUTO_RECONNECT,Boolean.TRUE); String clusterID=Configuration.get("jgroup-group-id"); logger.info("Connecting to clusterID:"+clusterID); channel.connect(clusterID); view=channel.getView(); PullPushAdapter adapter=new PullPushAdapter(channel,this); rpc=new RpcDispatcher(adapter,null,null,null,new RemoteCallHandler()); rpc.addChannelListener(adapter);