[rabbitmq-discuss] rabbitmqctl list_connections hanging

[Doug Barth]

On Mon, Oct 8, 2012 at 5:11 PM, Matthias Radestock
<matthias at rabbitmq.com> wrote:
> Hmm. So connections were still being accepted after the problem surfaced?

Yes, AMQP connections are still accepted and all our existing
connections seem fine.

>> The "rabbitmqctl eval" command is hanging
>
>
> Interesting. Give these two a try:
>
> rabbitmqctl eval 'rabbit_mnesia:running_clustered_nodes().'

$ sudo /usr/sbin/rabbitmqctl eval 'rabbit_mnesia:running_clustered_nodes().'
[rabbit at db1]
...done.

> rabbitmqctl eval 'process_info(whereis(rabbit_tcp_client_sup)).'

$ sudo /usr/sbin/rabbitmqctl eval
'process_info(whereis(rabbit_tcp_client_sup)).'
[{registered_name,rabbit_tcp_client_sup},
 {current_function,{gen_server,loop,6}},
 {initial_call,{proc_lib,init_p,5}},
 {status,waiting},
 {message_queue_len,0},
 {messages,[]},
 {links,[<4825.22471.134>,<4825.15945.205>,<4825.5788.206>,<4825.18338.206>,
         <4825.18756.206>,<4825.18840.206>,<4825.18880.206>,<4825.18814.206>,
         <4825.18818.206>,<4825.18800.206>,<4825.18629.206>,<4825.18412.206>,
         <4825.15784.206>,<4825.16819.206>,<4825.18079.206>,<4825.17195.206>,
         <4825.16802.206>,<4825.16665.206>,<4825.14034.206>,<4825.15285.206>,
         <4825.12749.206>,<4825.13888.206>,<4825.8936.206>,<4825.22353.205>,
         <4825.26205.205>,<4825.5649.206>,<4825.5276.206>,<4825.22405.205>,
         <4825.22421.205>,<4825.22430.205>,<4825.22413.205>,<4825.22385.205>,
         <4825.22397.205>,<4825.22369.205>,<4825.22262.205>,<4825.22280.205>,
         <4825.22337.205>,<4825.22272.205>,<4825.22236.205>,<4825.22247.205>,
         <4825.28096.183>,<4825.11731.205>,<4825.15219.205>,<4825.15564.205>,
         <4825.15661.205>,<4825.15761.205>,<4825.15609.205>,<4825.15583.205>,
         <4825.15420.205>,<4825.15491.205>,<4825.15530.205>,<4825.15462.205>,
         <4825.15349.205>,<4825.15391.205>,<4825.15303.205>,<4825.15167.205>,
         <4825.15203.205>,<4825.15171.205>,<4825.13953.205>,<4825.15120.205>,
         <4825.15150.205>,<4825.13596.205>,<4825.8586.205>,<4825.11065.205>,
         <4825.11448.205>,<4825.9839.205>,<4825.10639.205>,<4825.14778.197>,
         <4825.23363.201>,<4825.12978.203>,<4825.1680.197>,<4825.9942.197>,
         <4825.7391.183>,<4825.7524.183>,<4825.28015.183>,<4825.28072.183>,
         <4825.28080.183>,<4825.28056.183>,<4825.28060.183>,<4825.28023.183>,
         <4825.7556.183>,<4825.7564.183>,<4825.7532.183>,<4825.7439.183>,
         <4825.7484.183>,<4825.7508.183>,<4825.7516.183>,<4825.7500.183>,
         <4825.7468.183>,<4825.7476.183>,<4825.7407.183>,<4825.7431.183>,
         <4825.7415.183>,<4825.7399.183>,<4825.7257.183>,<4825.7323.183>,
         <4825.7355.183>,<4825.7371.183>,<4825.7379.183>,<4825.7363.183>,
         <4825.7339.183>,<4825.7347.183>,<4825.7331.183>,<4825.7290.183>,
         <4825.7306.183>,<4825.7314.183>,<4825.7298.183>,<4825.7273.183>,
         <4825.7281.183>,<4825.7265.183>,<4825.5267.183>,<4825.5352.183>,
         <4825.7099.183>,<4825.7108.183>,<4825.5364.183>,<4825.5316.183>,
         <4825.5328.183>,<4825.5308.183>,<4825.5235.183>,<4825.5251.183>,
         <4825.5259.183>,<4825.5243.183>,<4825.5137.183>,<4825.879.72>,
         <4825.26671.133>,<4825.30502.133>,<4825.1342.134>,<4825.1580.134>,
         <4825.1600.134>,<4825.1325.134>,<4825.30114.133>,<4825.30232.133>,
         <4825.30357.133>,<4825.30439.133>,<4825.30336.133>,<4825.30138.133>,
         <4825.29556.133>,<4825.30110.133>,<4825.28857.133>,<4825.21364.133>,
         <4825.25532.133>,<4825.25694.133>,<4825.25867.133>,<4825.24236.133>,
         <4825.25520.133>,<4825.27515.113>,<4825.18533.133>,<4825.21356.133>,
         <4825.27495.113>,<4825.22630.45>,<4825.23299.66>,<4825.26012.70>,
         <4825.26125.70>,<4825.26129.70>,<4825.871.72>,<4825.26103.70>,
         <4825.26117.70>,<4825.26000.70>,<4825.26008.70>,<4825.25992.70>,
         <4825.23058.66>,<4825.23193.66>,<4825.23241.66>,<4825.23283.66>,
         <4825.23267.66>,<4825.23225.66>,<4825.23200.66>,<4825.23125.66>,
         <4825.23161.66>,<4825.23177.66>,<4825.23145.66>,<4825.23090.66>,
         <4825.23109.66>,<4825.23074.66>,<4825.22925.66>,<4825.22990.66>,
         <4825.23022.66>,<4825.23038.66>,<4825.23006.66>,<4825.22958.66>,
         <4825.22974.66>,<4825.22941.66>,<4825.22856.66>,<4825.22888.66>,
         <4825.22908.66>,<4825.22872.66>,<4825.22821.66>,<4825.22840.66>,
         <4825.30414.1>,<4825.30532.1>,<4825.22598.45>,<4825.22614.45>,
         <4825.22566.45>,<4825.22582.45>,<4825.22550.45>,<4825.30478.1>,
         <4825.30510.1>,<4825.30524.1>,<4825.30494.1>,<4825.30502.1>,
         <4825.30486.1>,<4825.30446.1>,<4825.30462.1>,<4825.30470.1>,
         <4825.30454.1>,<4825.30430.1>,<4825.30438.1>,<4825.30422.1>,
         <4825.30341.1>,<4825.30382.1>,<4825.30398.1>,<4825.30406.1>,
         <4825.30390.1>,<4825.30358.1>,<4825.30366.1>,<4825.30345.1>,
         <4825.4332.0>,<4825.30325.1>,<4825.30333.1>,<4825.574.0>,
         <4825.1477.0>,<4825.163.0>]},
 {dictionary,[{'$ancestors',[rabbit_sup,<4825.162.0>]},
              {'$initial_call',{supervisor2,init,1}}]},
 {trap_exit,true},
 {error_handler,error_handler},
 {priority,normal},
 {group_leader,<4825.161.0>},
 {total_heap_size,8362},
 {heap_size,4181},
 {stack_size,9},
 {reductions,88549449},
 {garbage_collection,[{min_bin_vheap_size,46368},
                      {min_heap_size,233},
                      {fullsweep_after,65535},
                      {minor_gcs,47}]},
 {suspending,[]}]
...done.

Thanks,
Doug