RabbitMQ service doesn't start following an upgrade to 3.7.21

yajith 2019-11-11 01:50:05 UTC #1

Keywords: RabbitMQ - Virtual Machines - Technical issue - Upgrade
Description:
I'm currently testing an upgrade of old version of Bitnami RabbitMQ virtual machine to v3.7.21 and have encountered some errors. I'd appreciate if someone can provide me some advise.

Versions currently on the VM are RabbitMQ 3.6.5, Erlang 17.4

Once the upgrade is done as per the steps in URL: https://docs.bitnami.com/google/infrastructure/rabbitmq/administration/upgrade/ I encountered below errors

service wouldn't start and complains about "/opt/bitnami/rabbitmq/sbin/rabbitmq-server: 187: /opt/bitnami/rabbitmq/sbin/rabbitmq-server: erl: not found"

Since it appeared that the script is somehow unable to find the erlang installation, I create a symlink in /usr/bin to point to where erl is located. This seem to stop the erl not found error.

Still the start up fails creating a dump file.

This VM was created using a bitnami rabbitmq image and I think Erlang binaries came pre-installed.

Is this due to the old version of Erlang installed (17.4) ?
If so can someone advise how I can get the erlang upgraded ?

My apologies if this has already been asked and answered on the forum.

tomasp 2019-11-11 12:21:49 UTC #2

Hi @yajith,

Yes, if you upgrade RabbitMQ is very likely you also need to upgrade Erlang as well. Please the rabbitmq-erlang compatibility matrix here

A different approach to upgrade rabbitmq and the rest of stack components (including Erlang) can be launching the latest RabbitMQ VM available and simply restore your rabbitmq backup from the old VM. What do you think about this approach?

yajith 2019-11-13 20:21:47 UTC #3

Hi @tomasp,

Thanks a lot for the feedback. Yes, that approach should work for me.

Reason for the RabbitMQ upgrade is to keep support with some vmware software(vCloud DIrector) which also needs upgrading. Looking at interop. guides and other info. RabbitMQ 3.7 is the one we need to upgrade to.(I picked the latest stable release 3.7.21 as that would have most up to date fixes etc.) Since I couldn't find a download of 3.8 virtual machine (.ova) I went down the path of manually upgrading individual components.

Looking through the VMware cloud market place - something I missed to check previously, I found an appliance with v3.7.18 which I will use to test out.

tomasp 2019-11-14 11:21:32 UTC #4

I see! In case it helps, you can download a virtual machine for RabbitMQ 3.8.1 here

system 2020-01-14 19:39:10 UTC #5

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