Is it possible to view RabbitMQ message contents directly from the command line

Question

Is it possible to view RabbitMQ message contents directly from the command line  sudo rabbitmqctl list queues lists the queues  Is there any command like sudo rabbitmqctl list queue messages  lt queue name gt

User · Answer

I wrote rabbitmq-dump-queue which allows dumping messages from a RabbitMQ queue to local files and requeuing the messages in their original order.

Example usage (to dump the first 50 messages of queue incoming_1):

rabbitmq-dump-queue -url="amqp://user:[email protected]:5672/" -queue=incoming_1 -max-messages=50 -output-dir=/tmp

User · Answer

You should enable the management plugin   rabbitmq-plugins enable rabbitmq management   See here   http   www rabbitmq com plugins html  And here for the specifics of management    http   www rabbitmq com management html  Finally once set up you will need to follow the instructions below to install and use the rabbitmqadmin tool  Which can be used to fully interact with the system   http   www rabbitmq com management-cli html  For example   rabbitmqadmin get queue  lt QueueName gt  requeue false   will give you the first message off the queue

User · Answer

you can use RabbitMQ API to get count or messages      api queues vhost name get   Get messages from a queue   This is not an HTTP GET as it will alter the state of the queue   You should post a body looking like     count  5  requeue  true  encoding   auto   truncate  50000    count controls the maximum number of messages to get  You may get fewer messages than this if the queue cannot immediately provide them   requeue determines whether the messages will be removed from the queue  If requeue is true they will be requeued - but their redelivered flag will be set  encoding must be either  auto   in which case the payload will be returned as a string if it is valid UTF-8  and base64 encoded otherwise   or  base64   in which case the payload will always be base64 encoded   If truncate is present it will truncate the message payload if it is larger than the size given  in bytes   truncate is optional  all other keys are mandatory   Please note that the publish   get paths in the HTTP API are intended for injecting test messages  diagnostics etc - they do not implement reliable delivery and so should be treated as a sysadmin s tool rather than a general API for messaging   http   hg rabbitmq com rabbitmq-management raw-file rabbitmq v3 1 3 priv www api index html

User · Answer

Here are the commands I use to get the contents of the queue   RabbitMQ version 3 1 5 on Fedora linux using https   www rabbitmq com management-cli html  Here are my exchanges   eric dev     sudo python rabbitmqadmin list exchanges  ------- -------------------- --------- ------------- --------- ----------    vhost          name           type     auto delete   durable   internal    ------- -------------------- --------- ------------- --------- ----------                                 direct    False         True      False                kowalski             topic     False         True      False       ------- -------------------- --------- ------------- --------- ----------    Here is my queue   eric dev     sudo python rabbitmqadmin list queues  ------- ---------- ------------- ----------- --------- ------------------------ --------------------- -------- ---------- ---------------- ------------------------- --------------------- -------- ---------    vhost     name     auto delete   consumers   durable   exclusive consumer tag       idle since        memory   messages   messages ready   messages unacknowledged          node           policy   status     ------- ---------- ------------- ----------- --------- ------------------------ --------------------- -------- ---------- ---------------- ------------------------- --------------------- -------- ---------            myqueue    False         0           True                               2014-09-10 13 32 18   13760    0          0                0                        rabbit ip-11-1-52-125           running    ------- ---------- ------------- ----------- --------- ------------------------ --------------------- -------- ---------- ---------------- ------------------------- --------------------- -------- ---------    Cram some items into myqueue   curl -i -u guest guest http   localhost 15672 api exchanges  2f kowalski publish -d    properties      routing key   abcxyz   payload   foobar   payload encoding   string    HTTP 1 1 200 OK Server  MochiWeb 1 1 WebMachine 1 10 0  never breaks eye contact  Date  Wed  10 Sep 2014 17 46 59 GMT content-type  application json Content-Length  15 Cache-Control  no-cache    routed  true    RabbitMQ see messages in queue   eric dev     sudo python rabbitmqadmin get queue myqueue requeue true count 10  ------------- ---------- --------------- --------------------------------------- --------------- ------------------ ------------ -------------    routing key   exchange   message count                          payload          payload bytes   payload encoding   properties   redelivered    ------------- ---------- --------------- --------------------------------------- --------------- ------------------ ------------ -------------    abcxyz        kowalski   10              foobar                                  6               string                          True            abcxyz        kowalski   9                 testdata   test                       19              string                          True            abcxyz        kowalski   8                 mykey   myvalue                       19              string                          True            abcxyz        kowalski   7                 mykey   myvalue                       19              string                          True           ------------- ---------- --------------- --------------------------------------- --------------- ------------------ ------------ -------------

User · Answer

a bit late to this  but yes rabbitmq has a build in tracer that allows you to see the incomming messages in a log  When enabled  you can just tail -f  var tmp rabbitmq-tracing  log  on mac  to watch the messages   the detailed discription is here http   www mikeobrien net blog tracing-rabbitmq-messages

User · Answer

If you want multiple messages from a queue  say 10 messages  the command to use is   rabbitmqadmin get queue  lt QueueName gt  ackmode ack requeue true count 10   If you don t want the messages requeued  just change ackmode to ack requeue false

[rabbitmq] Is it possible to view RabbitMQ message contents directly from the command line?

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