[OpenSIPS-Users] mi_fifo lock on reply after a period of time in 3.1.3
Andrew Yager
andrew at rwts.com.au
Wed Oct 6 23:19:07 EST 2021
Hi Bogdan-Andrei,
This does look to be frozen in this state too. I guess GDB is the next step.
Andrew
On Wed, 6 Oct 2021 at 17:12, Bogdan-Andrei Iancu <bogdan at opensips.org>
wrote:
> Hi Andrew,
>
> What you can do is, after getting the FIFO blocked, to do a trap
> "opensips-cli trap" to try to see what the FIFO process is doing (or trying
> to do). If the trap does not work, let me know, I will give you the
> instructions on how to directly attache with GDB to the process.
>
> Best regards,
>
> Bogdan-Andrei Iancu
>
> OpenSIPS Founder and Developer
> https://www.opensips-solutions.com
> OpenSIPS eBootcamp 2021
> https://opensips.org/training/OpenSIPS_eBootcamp_2021/
>
> On 10/6/21 12:24 AM, Andrew Yager wrote:
>
> Also restarting opensips produces this:
>
> Restarting opensips (via systemctl): opensips.serviceERROR: communication
> exception for 'which' returned: cannot access fifo file /tmp/opensips_fifo:
> [Errno 32] Broken pipe!
>
> Andrew
>
>
> On Wed, 6 Oct 2021 at 08:23, Andrew Yager <andrew at rwts.com.au> wrote:
>
>> Hi,
>>
>> Just replicated this on the 3.2.2 nightly build. Debug logs are enabled,
>> and this is all I can see on the last request that stalled:
>>
>> Oct 6 04:49:32 hvprxy osips[1186130]: DBG:mi_fifo:mi_fifo_callback:
>> running command [{"jsonrpc": "2.0", "id": "5319", "method": "which",
>> "params": []}]
>> Oct 6 04:49:32 hvprxy osips[1186130]: DBG:mi_fifo:mi_fifo_callback: got
>> mi response = [0x558865cc9560]
>> Oct 6 04:49:32 hvprxy osips[1186130]: DBG:mi_fifo:mi_fifo_callback:
>> running command [{"jsonrpc": "2.0", "id": "8377", "method":
>> "get_statistics", "params": [["all"]]}]
>> Oct 6 04:49:32 hvprxy osips[1186133]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186134]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186135]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186136]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186137]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186138]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186139]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186140]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186141]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186142]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186143]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186144]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186145]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186146]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186147]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186148]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186149]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186150]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186151]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186152]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186153]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186154]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186155]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186156]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186157]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186158]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186159]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186160]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186161]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186162]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186163]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186164]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186165]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186166]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186167]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186168]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186169]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186170]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186171]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186172]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186173]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>> Oct 6 04:49:32 hvprxy osips[1186174]: DBG:core:ipc_handle_job: received
>> job type 0[RPC] from process 1
>>
>> Andrew
>>
>> On Mon, 4 Oct 2021 at 22:37, Andrew Yager <andrew at rwts.com.au> wrote:
>>
>>> Just further to this, I think it's the ul_dump command that seems to
>>> cause the issue first.
>>>
>>> Andrew
>>>
>>>
>>> On Sat, 2 Oct 2021 at 13:05, Andrew Yager <andrew at rwts.com.au> wrote:
>>>
>>>> Hi,
>>>>
>>>> Not entirely sure where to start digging on this one. On 3.1.3 we've
>>>> had an issue appear "suddenly" whereby our mi command output seems to
>>>> "block" and not return any useful data. Restarting opensips processes
>>>> restores comms.
>>>>
>>>> We end up with a huge number of opensips_fifo_reply_\* files in the
>>>> /tmp directory, but effectively no data is ever written and opensips-cli
>>>> freezes.
>>>>
>>>> We've restarted twice to "resolve" now, but the issue appears to
>>>> reoccur. We're using the mi get_statistics command to monitor stats/health
>>>> and uldump to pull some detail about usrloc data every 5 minutes.
>>>>
>>>> I don't think I can cause a debug level increase because the MI process
>>>> doesn't seem to be communicating (at least it doesn't seem to work).
>>>>
>>>> opensips 3.1.3-1
>>>> opensips-cli 0.1~20210707~572d2db-
>>>> 5.4.0-88-generic #99-Ubuntu SMP Thu Sep 23 17:29:00 UTC 2021 x86_64
>>>> x86_64 x86_64 GNU/Linux
>>>>
>>>> I can restart again, but if this is going to keep happening, I want to
>>>> make sure I have something useful in the logs to be able to trace down.
>>>>
>>>> Andrew
>>>>
>>>
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