[erlang-questions] gen_server message queue length increasing

[Zvi]

I forgot to mention, that we use R14B04 with HiPE disabled and Kernel
Poll enabled.
OS is Ubuntu 11.10.

On Nov 3, 11:14 pm, Zvi <zvi.avra...@REDACTED> wrote:
> Hi,
>
> I have a locally registered gen_server [1], which traping exits and
> monitoring list of processes (which saved in ETS table in it's state).
> The priority of this gen_server set to high.
> We also use fullsweep_after = 0.
> The only job of this gen_server is to spawn gen_servers of other type
> and update ETS table with their pids.
> The priority of a spawned gen_server process is normal.
>
> For some reason the message queue length of this gen_server start
> increasing, whith messages which supposedly should processed by
> gen_server:handle_info/2 [2].
> Any ideas?
>
> [2]
>
> (mynode@REDACTED)9> whereis(myserver).
> <0.194.0>
> (mynode@REDACTED)10> i(0,194,0).
> [{registered_name,myserver},
>  {current_function,{proc_lib,sync_wait,2}},
>  {initial_call,{proc_lib,init_p,5}},
>  {status,waiting},
>  {message_queue_len,43388},
>  {messages,[{'EXIT',<0.17263.1>,normal},
>             {'DOWN',#Ref<0.0.220.23782>,process,<0.17263.1>,normal},
>             {'EXIT',<0.19870.0>,normal},
>             {'DOWN',#Ref<0.0.7.128134>,process,<0.19870.0>,normal},
>             {'EXIT',<0.19945.0>,normal},
>             {'DOWN',#Ref<0.0.7.183474>,process,<0.19945.0>,normal},
>             {'EXIT',<0.19927.0>,normal},
>             {'DOWN',#Ref<0.0.7.166242>,process,<0.19927.0>,normal},
>             {'EXIT',<0.19847.0>,normal},
>             {'DOWN',#Ref<0.0.7.119123>,process,<0.19847.0>,normal},
>             {'EXIT',<0.19935.0>,normal},
>             {'DOWN',#Ref<0.0.7.174779>,process,<0.19935.0>,normal},
>             {'EXIT',<0.17267.1>,normal},
>             {'DOWN',#Ref<0.0.220.24915>,process,<0.17267.1>,normal},
>             {'EXIT',<0.19833.0>,normal},
>             {'DOWN',#Ref<0.0.7.109092>,process,<0.19833.0>,normal},
>             {'EXIT',<0.19895.0>,normal},
>             {'DOWN',#Ref<0.0.7.135024>,process,...},
>             {'EXIT',<0.19906.0>,...},
>             {'DOWN',...},
>             {...}|...]},
>  {links,[<0.14463.0>,<0.1452.1>,<0.28537.1>,<0.6041.2>,
>          <0.11523.2>,<0.13320.2>,<0.13691.2>,<0.14031.2>,<0.14312.2>,
>          <0.14363.2>,<0.14502.2>,<0.14514.2>,<0.14518.2>,<0.14523.2>,
>          <0.14516.2>,<0.14509.2>,<0.14512.2>,<0.14506.2>,<0.14471.2>,
>          <0.14490.2>|...]},
>  {dictionary,[{'$ancestors',[router_core_sup,router_sup,
>                              <0.189.0>]},
>               {'$initial_call',{myserver,init,1}}]},
>  {trap_exit,true},
>  {error_handler,error_handler},
>  {priority,high},
>  {group_leader,<0.188.0>},
>  {total_heap_size,1346269},
>  {heap_size,1346269},
>  {stack_size,26},
>  {reductions,3818768},
>  {garbage_collection,[{min_bin_vheap_size,46368},
>                       {min_heap_size,233},
>                       {fullsweep_after,0},
>                       {minor_gcs,0}]},
>  {suspending,[]}]
>
> --------------------------------------
>
> [1]
>
> -module(myserver).
> -behaviour(gen_server).
>
> ...
>
> handle_info({'EXIT', Pid, _}, State) ->
>         delete_by_pid(Pid, State),
>     {noreply, State};
>
> handle_info({'DOWN', _, process, Pid, _}, State) ->
>         delete_by_pid(Pid, State),
>     {noreply, State};
>
> handle_info(Info, State) ->
>     {stop, {unknown_info, Info}, State}.
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