I have the same problem from the very beginning when I started using mayan edms.
The logs keep showing:
client unexpectedly closed TCP connection
At first I ignored it because everything seemed to be working properly.
When the number of documents added increased significantly, a search problem appeared. Newly added documents are never indexed in the search engine. Only docker compose down/up triggers re-indexing and the search works correctly. After some time, the problem returns.
mayan-rabbitmq-1 | 2023-11-08 07:31:17.861518+00:00 [warning] <0.15041.0> closing AMQP connection <0.15041.0> (172.28.0.4:52096 -> 172.28.0.3:5672, vhost: 'mayan', user: 'user'):
mayan-rabbitmq-1 | 2023-11-08 07:31:17.861518+00:00 [warning] <0.15041.0> client unexpectedly closed TCP connection
mayan-rabbitmq-1 | 2023-11-08 07:31:17.862591+00:00 [warning] <0.15030.0> closing AMQP connection <0.15030.0> (172.28.0.4:52086 -> 172.28.0.3:5672, vhost: 'mayan', user: 'user'):
mayan-rabbitmq-1 | 2023-11-08 07:31:17.862591+00:00 [warning] <0.15030.0> client unexpectedly closed TCP connection
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> supervisor: {<0.15034.0>,rabbit_channel_sup}
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> errorContext: shutdown_error
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> reason: noproc
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> offender: [{pid,<0.15037.0>},
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> {id,channel},
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> {mfargs,
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> {rabbit_channel,start_link,
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> [1,<0.15030.0>,<0.15035.0>,<0.15030.0>,
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> <<"172.28.0.4:52086 -> 172.28.0.3:5672">>,
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> rabbit_framing_amqp_0_9_1,
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> {user,<<"user">>,
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> [administrator],
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> [{rabbit_auth_backend_internal,
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> #Fun<rabbit_auth_backend_internal.3.131409679>}]},
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> <<"mayan">>,
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> [{<<"consumer_cancel_notify">>,bool,true},
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> {<<"connection.blocked">>,bool,true},
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> {<<"authentication_failure_close">>,bool,true}],
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> <0.15031.0>,<0.15036.0>]}},
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> {restart_type,intrinsic},
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> {shutdown,70000},
mayan-rabbitmq-1 | 2023-11-08 07:31:17.864126+00:00 [error] <0.15034.0> {child_type,worker}]
mayan-rabbitmq-1 | 2023-11-08 07:31:17.869492+00:00 [warning] <0.15054.0> closing AMQP connection <0.15054.0> (172.28.0.4:52102 -> 172.28.0.3:5672, vhost: 'mayan', user: 'user'):
mayan-rabbitmq-1 | 2023-11-08 07:31:17.869492+00:00 [warning] <0.15054.0> client unexpectedly closed TCP connection
mayan-rabbitmq-1 | 2023-11-08 07:31:15.945492+00:00 [info] <0.14998.0> accepting AMQP connection <0.14998.0> (172.28.0.4:52076 -> 172.28.0.3:5672)
mayan-rabbitmq-1 | 2023-11-08 07:31:15.947166+00:00 [info] <0.14998.0> connection <0.14998.0> (172.28.0.4:52076 -> 172.28.0.3:5672): user 'user' authenticated and granted access to vhost 'mayan'
mayan-rabbitmq-1 | 2023-11-08 07:31:15.951042+00:00 [info] <0.15010.0> accepting AMQP connection <0.15010.0> (172.28.0.4:52080 -> 172.28.0.3:5672)
mayan-rabbitmq-1 | 2023-11-08 07:31:15.952960+00:00 [info] <0.15010.0> connection <0.15010.0> (172.28.0.4:52080 -> 172.28.0.3:5672): user 'user' authenticated and granted access to vhost 'mayan'
mayan-rabbitmq-1 | 2023-11-08 07:31:16.243389+00:00 [warning] <0.14998.0> closing AMQP connection <0.14998.0> (172.28.0.4:52076 -> 172.28.0.3:5672, vhost: 'mayan', user: 'user'):
mayan-rabbitmq-1 | 2023-11-08 07:31:16.243389+00:00 [warning] <0.14998.0> client unexpectedly closed TCP connection
mayan-rabbitmq-1 | 2023-11-08 07:31:16.541911+00:00 [warning] <0.15010.0> closing AMQP connection <0.15010.0> (172.28.0.4:52080 -> 172.28.0.3:5672, vhost: 'mayan', user: 'user'):
mayan-rabbitmq-1 | 2023-11-08 07:31:16.541911+00:00 [warning] <0.15010.0> client unexpectedly closed TCP connection
mayan-rabbitmq-1 | 2023-11-08 07:53:33.749015+00:00 [warning] <0.971.0> Consumer 25143 on channel 1 has timed out waiting for delivery acknowledgement. Timeout used: 1800000 ms. This timeout value can be configured, see consumers doc guide to learn more
mayan-rabbitmq-1 | 2023-11-08 07:53:33.805435+00:00 [error] <0.971.0> Channel error on connection <0.962.0> (172.28.0.4:43030 -> 172.28.0.3:5672, vhost: 'mayan', user: 'user'), channel 1:
mayan-rabbitmq-1 | 2023-11-08 07:53:33.805435+00:00 [error] <0.971.0> operation none caused a channel exception precondition_failed: delivery acknowledgement on channel 1 timed out. Timeout value used: 1800000 ms. This timeout value can be configured, see consumers doc guide to learn more
mayan-app-1 | [2023-11-08 07:53:33,807: CRITICAL/MainProcess] Unrecoverable error: PreconditionFailed(406, 'PRECONDITION_FAILED - delivery acknowledgement on channel 1 timed out. Timeout value used: 1800000 ms. This timeout value can be configured, see consumers doc guide to learn more', (0, 0), '')
mayan-app-1 | Traceback (most recent call last):
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/celery/worker/worker.py", line 202, in start
mayan-app-1 | self.blueprint.start(self)
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/celery/bootsteps.py", line 116, in start
mayan-app-1 | step.start(parent)
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/celery/bootsteps.py", line 365, in start
mayan-app-1 | return self.obj.start()
mayan-app-1 | ^^^^^^^^^^^^^^^^
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/celery/worker/consumer/consumer.py", line 336, in start
mayan-app-1 | blueprint.start(self)
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/celery/bootsteps.py", line 116, in start
mayan-app-1 | step.start(parent)
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/celery/worker/consumer/consumer.py", line 726, in start
mayan-app-1 | c.loop(*c.loop_args())
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/celery/worker/loops.py", line 97, in asynloop
mayan-app-1 | next(loop)
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/kombu/asynchronous/hub.py", line 373, in create_loop
mayan-app-1 | cb(*cbargs)
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/kombu/transport/base.py", line 248, in on_readable
mayan-app-1 | reader(loop)
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/kombu/transport/base.py", line 230, in _read
mayan-app-1 | drain_events(timeout=0)
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/amqp/connection.py", line 525, in drain_events
mayan-app-1 | while not self.blocking_read(timeout):
mayan-app-1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/amqp/connection.py", line 531, in blocking_read
mayan-app-1 | return self.on_inbound_frame(frame)
mayan-app-1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/amqp/method_framing.py", line 53, in on_frame
mayan-app-1 | callback(channel, method_sig, buf, None)
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/amqp/connection.py", line 537, in on_inbound_method
mayan-app-1 | return self.channels[channel_id].dispatch_method(
mayan-app-1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/amqp/abstract_channel.py", line 156, in dispatch_method
mayan-app-1 | listener(*args)
mayan-app-1 | File "/opt/mayan-edms/lib/python3.11/site-packages/amqp/channel.py", line 293, in _on_close
mayan-app-1 | raise error_for_code(
mayan-app-1 | amqp.exceptions.PreconditionFailed: (0, 0): (406) PRECONDITION_FAILED - delivery acknowledgement on channel 1 timed out. Timeout value used: 1800000 ms. This timeout value can be configured, see consumers doc guide to learn more
https://ss-yz.sentry.io/share/issue/f8043024ed3d4059b10fc48579443b81/
EDIT:
I did the test on clean Ubuntu 22.04.3LTS and ran mayan edms via docker compose. I didn’t change anything in the env configuration. Without SSL on port 80. I added 5 files, after some time I see a repeating message in the console:
client unexpectedly closed TCP connection
According to sentry, the problem first appeared in version 4.5.7, but this may be a coincidence.