Error while waiting for Mnesia table in a cluster

[matt...@gmail.com]

I was unable to start RabbitMQ Server in a cluster without restarting the other node in the cluster first. I constantly got "Error while waiting for Mnesia table" before restarting the other node. I have RabbitMQ 3.8.14 on Erlang 23.3.1 in a cluster of two nodes of Red Hat Enterprise Linux 7 and 8.

2021-04-09 13:08:23.830 [info] <0.274.0> Waiting for Mnesia tables for 30000 ms,

 1 retries left

2021-04-09 13:08:53.831 [warning] <0.274.0> Error while waiting for Mnesia table

s: {timeout_waiting_for_tables,[rabbit@pora,rabbit@pora2],[rabbit_durable_queue]

}

2021-04-09 13:08:53.831 [info] <0.274.0> Waiting for Mnesia tables for 30000 ms,

 0 retries left

2021-04-09 13:09:17.855 [info] <0.274.0> Successfully synced tables from a peer

2021-04-09 13:09:17.855 [info] <0.274.0> Waiting for Mnesia tables for 30000 ms,

 9 retries left

2021-04-09 13:09:18.093 [info] <0.274.0> Successfully synced tables from a peer

2021-04-09 13:09:18.235 [info] <0.274.0> Waiting for Mnesia tables for 30000 ms, 9 retries left

2021-04-09 13:09:18.235 [info] <0.274.0> Successfully synced tables from a peer

[Michal Kuratczyk]

Hey,

The process and error is explained here: https://www.rabbitmq.com/clustering.html#restarting

You haven't provided enough details to tell what exactly happened in your cluster but most likely it was the expected behaviour when:

1. node1 was shut down (it remembers that node2 was still running when it stopped)

2. then node2 was shut down

3. you attempted to start node1 without starting node2 - node1 knows node2 was still running when it stopped, so it waits for node1 to become available to synchronize the latest state of the cluster

Best,

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Michał

RabbitMQ team