Github user oknet commented on the issue:
https://github.com/apache/trafficserver/pull/771
@bryancall to review the codes of ClusterHandlerBase.cc
```
979 thread = eventProcessor.eventthread[ET_CLUSTER][id %
num_of_cluster_threads];
980 if (net_vc->thread == thread) {
981 cluster_connect_state = CLCON_CONN_BIND_OK;
982 break;
983 } else {
984 cluster_connect_state =
ClusterHandler::CLCON_CONN_BIND_CLEAR;
985 }
```
From my understanding of the code, the codes from L1007 to L1033 means:
1. the net_vc bind to unmatched thread
2. It should unbind(L1012-1022) and then rebind(L1024-L1027) to another
thread
I think the unbind include remove vc from cop_list here.
because the InactivityCop only push the vc->thread == this_ethread() into
cop_list, but the vc->thread set to NULL in L1014.
```
// Copy the list and use pop() to catch any closes caused by callbacks.
forl_LL(UnixNetVConnection, vc, nh.open_list)
{
if (vc->thread == this_ethread()) {
nh.cop_list.push(vc);
}
}
```
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