Incorrect Messages count in RabbitMQ UI for the Queue

[Pankaj Kumar Pandey]

Hello Team,

Issue: 

in rabbitmq UI no of message count is 602 but same when i am trying to get through curl command it's showing same count of messages but there is no messages inside the queue.

i also tried to fetch message from rabbitmq gui and RMQ rest API  but found no messages on the queue. attached screen shot for the same.

please help why this is happening ? 

RMQ version: 3.6.12
No of message in ready state: 602 (as per UI)
No of messages as per curl: 602

message count API:

curl -i -u devops:******* -X GET http://******:15672/api/queues/growth/domain_q_prod_TransformerHMSEvent |sed 's/,/\n/g' | grep '"messages"' | sed 's/"messages"://g'

Get Message API:

trying to fetch message using curl:

curl -i -u devops:****** -H "content-type:application/json" -X POST http://******:15672/api/queues/growth/domain_q_prod_TransformerHMSEvent/get -d'{"count":100,"requeue":true,"encoding":"auto","truncate":50000}'

response:
HTTP/1.1 200 OK
server: Cowboy
date: Wed, 04 Jul 2018 04:26:08 GMT
content-length: 2
content-type: application/json
vary: accept, accept-encoding, origin
Cache-Control: no-cache
Content-Type: application/json
[]

[Michael Klishin]

The management UI page you are looking at uses a different API endpoint from what you call with `curl`.

Consumption via HTTP API is generally discouraged and exists as a last resort measure. There are better

ways to retrieve queue state information, in particular via HTTP API. The same end point management UI

uses — `GET /api/queues/{vhost}/{name}` — is a much better choice.

Check out the latest episode of Treebo Comedy Trips - Travelling Solo in India

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MK

Staff Software Engineer, Pivotal/RabbitMQ

[Alex Dellinger]

I am having a similar issue.  Newly installed RabbitMQ environment with HA configuration.  Messages are being processed but Management UI is not updating correctly.  Occasionally it will show 1 message queued...  I checked the HTTP Queues API and I see detail under the message_stats.

Any suggestions?  Windows Server, .NET, Rabbit 3.7.11, Erlang 21.0.1

"message_stats": {"ack": 3696,"ack_details": {"rate": 0.4},"deliver": 3696,"deliver_details": {"rate": 0.4},"deliver_get": 3696,"deliver_get_details": {"rate": 0.4},"deliver_no_ack": 0,"deliver_no_ack_details": {"rate": 0},"get": 0,"get_details": {"rate": 0},"get_no_ack": 0,"get_no_ack_details": {"rate": 0},"publish": 3600,"publish_details": {"rate": 0.4},"redeliver": 0,"redeliver_details": {"rate": 0}

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[Michael Klishin]

Please start a new thread for your question.

It would be great to hear what specific evidence do you have of stats not updating correctly. It's not

something we see reported on this list, at least not for 3.7 series.

[Luke Bakken]

Hi Alex,

I'm not exactly sure what the issue is. When the UI shows one message in the "Ready" state it just means that it hasn't yet been delivered to the consumer. Stats are updated on an interval so, depending on our publish / consume rate, you may never see any messages in the "Ready" state in the UI as they are immediately consumed.

Thanks,
Luke

[Alex Dellinger]

OK.  I think we are good then, consumers are just running at an "incredible rate of speed". :)  Confirmed by simply shutting them down and watching the queue stats creep up.

Thanks!

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