How to change erlang version for rabbitmq (windows)

[Justin Teaw]

I'm using 3.6.12.  I installed a plugin and found an error: error,undef,'connection.start_ok', 

Searched and found that it could be due to the erlang version.  So I'm installed an older version of erlang but in the logs, rabbit seems to be still using the latest version.

https://groups.google.com/forum/#!topic/rabbitmq-users/C7QmzQqd1Yw

https://groups.google.com/forum/#!searchin/rabbitmq-users/rabbitmq-auth-backend-uaa$20%7Csort:relevance/rabbitmq-users/0EQbUTkSBGY/uOjgzJkEAwAJ

Thanks!

[Michael Klishin]

Can you please post the entire error? It doesn't say what function was "undefined" (does not exist).

To upgrade Erlang you need to download an installer for the new version, stop RabbitMQ, install Erlang/OTP,

then start RabbitMQ again.

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MK

Staff Software Engineer, Pivotal/RabbitMQ

[Justin Teaw]

=ERROR REPORT==== 15-Sep-2017::11:08:50 ===

closing AMQP connection <0.590.0> ([::1]:24654 -> [::1]:5672 - RabbitMqClient-EasyNetQ.dll):

{handshake_error,starting,0,

    {error,undef,'connection.start_ok',

        [{rabbitmq_auth_backend_uaa,user_login_authentication,

             [<<"eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIiwia2lkIiA6ICJRUlU3b2MwWk5mX1RDUkJKTEMzalcwU0xIdDJ5RWlhN3VJempNd3k3NU00In0.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.PsJzvVCb32skUo9Hvv5aSP5OoeiWspIGYsWUbfUp_wQxTeHExRbc3hcEKAJKBanOIS3HslJRRAUVAi9hRaXOYiiw4Ty2z9pZhi1HZUpwoEZghXG_Ai83XuErIUV8oDwLH9IbFD35kIdFTO9gbiuF1Jfs8WrS7fZblLnaIol1ySK3IKmTQdsOWc-zlngU1DRe_qnQNlaeHHaxevyDv94-SQTnuDHNaYjiuIsNPARx9LBF4sBNGVH5BvnGNs8_s875SjQNz_tvHdRw3I_xkpx5M7vqA8hjoHumHkR5HMSBzA0TxUhKSzG0Uo1PqxG4NJQTEVhSrfWJmyOSt0_OmUKpIg">>,

              [{password,<<"guest">>}]],

             []},

         {rabbit_access_control,try_authenticate,3,

             [{file,"src/rabbit_access_control.erl"},{line,88}]},

         {rabbit_access_control,'-check_user_login/2-fun-0-',4,

             [{file,"src/rabbit_access_control.erl"},{line,74}]},

         {lists,foldl,3,[{file,"lists.erl"},{line,1263}]},

         {rabbit_reader,auth_phase,2,

             [{file,"src/rabbit_reader.erl"},{line,1339}]},

         {rabbit_reader,handle_method0,3,

             [{file,"src/rabbit_reader.erl"},{line,1149}]},

         {rabbit_reader,handle_input,3,

             [{file,"src/rabbit_reader.erl"},{line,1064}]},

         {rabbit_reader,recvloop,4,

             [{file,"src/rabbit_reader.erl"},{line,472}]}]}}

On Friday, 15 September 2017 11:24:14 UTC-4, Michael Klishin wrote:

Can you please post the entire error? It doesn't say what function was "undefined" (does not exist).

To upgrade Erlang you need to download an installer for the new version, stop RabbitMQ, install Erlang/OTP,

then start RabbitMQ again.

On Fri, Sep 15, 2017 at 9:13 AM, Justin Teaw <justi...@gmail.com> wrote:

I'm using 3.6.12.  I installed a plugin and found an error: error,undef,'connection.start_ok', 

Searched and found that it could be due to the erlang version.  So I'm installed an older version of erlang but in the logs, rabbit seems to be still using the latest version.

https://groups.google.com/forum/#!topic/rabbitmq-users/C7QmzQqd1Yw

https://groups.google.com/forum/#!searchin/rabbitmq-users/rabbitmq-auth-backend-uaa$20%7Csort:relevance/rabbitmq-users/0EQbUTkSBGY/uOjgzJkEAwAJ

Thanks!

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[Justin Teaw]

Regarding erlang downgrade, I already tried what you said with no luck, log still mentions it is using erlang 20.  I've also set the environment variable erlang_home to point to the downgraded version, with no luck.

[Michael Klishin]

I highly doubt upgrading Erlang will change anything.

The plugin you are trying to use likely wasn't tested against a 3.6.12 release, at

least in the last 6 months.

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[Justin Teaw]

I'm trying to downgrade erlang to see if the plugin will work.  Do you know which erlang version the plugin was tested against?

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[Michael Klishin]

As I mentioned before, the plugin was not tested AT ALL in the last ~ 6 months (it's not under development until

multiple teams can agree on how exactly it should work)

and was likely NOT tested against RabbitMQ 3.6.x. I warned about that

in the very first thread about auth-backend-uaa:

https://groups.google.com/d/msg/rabbitmq-users/Q0DwZyzZrC8/0Ii3brnDAgAJ

It was compiled on Erlang 19.3. I'd expect it to run just fine on OTP 20.

[Justin Teaw]

That's fine, I just want to try and make it work.

[Justin Teaw]

Do you know which version of rabbit it was tested against?

[dfed...@pivotal.io]

The plugin was developed and tested against RabbitMQ 3.7 (currently the master branch) and should be built manually. 

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[Justin Teaw]

thanks.  ok so I'll likely have to wait till 3.7 is released to try it again.  Unless someone from the team wants to look at it with version 3.6.x.

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[dfed...@pivotal.io]

We have no plans for implementing support for 3.6. As Michael mentioned, the plugin is experimental, not officially supported and it's not clear yet how it should work.

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[Michael Klishin]

To clarify: I don't think the plugin really relies on anything that's 3.6.x-specific but we are very certain 3.7.0

will ship before the plugin.

We will get it to the point where it can at least be experimented with against a 3.7.0 milestone. We are interested

in collecting feedback from outside of Pivotal and OAuth 2.0 support is in the roadmap for post-3.7.0.

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[Justin Teaw]

I'll try to test it out with the latest release 20.  https://github.com/rabbitmq/rabbitmq-server/tree/v3.7.0-beta.20

As I mentioned, erlang and rabbit is new to me so it might take a while for me to build it.

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[Justin Teaw]

I'd be happy to help test and give feedback.  I just tried with milestone 20 and problem is still there.  No logs generated. Nothing in crash.log.

I noticed that the config file is now advanced.config.

[Justin Teaw]

Learned that I have to enable lager.  Looks like the same undefined error.  Here's the error:

{handshake_error,starting,0,{error,undef,'connection.start_ok',[{rabbitmq_auth_backend_uaa,user_login_authentication,[<<"eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIiwia2lkIiA6ICJRUlU3b2MwWk5mX1RDUkJKTEMzalcwU0xIdDJ5RWlhN3VJempNd3k3NU00In0.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.PsJzvVCb32skUo9Hvv5aSP5OoeiWspIGYsWUbfUp_wQxTeHExRbc3hcEKAJKBanOIS3HslJRRAUVAi9hRaXOYiiw4Ty2z9pZhi1HZUpwoEZghXG_Ai83XuErIUV8oDwLH9IbFD35kIdFTO9gbiuF1Jfs8WrS7fZblLnaIol1ySK3IKmTQdsOWc-zlngU1DRe_qnQNlaeHHaxevyDv94-SQTnuDHNaYjiuIsNPARx9LBF4sBNGVH5BvnGNs8_s875SjQNz_tvHdRw3I_xkpx5M7vqA8hjoHumHkR5HMSBzA0TxUhKSzG0Uo1PqxG4NJQTEVhSrfWJmyOSt0_OmUKpIg">>,[{password,<<"guest">>}]],[]},{rabbit_access_control,try_authenticate,3,[{file,"src/rabbit_access_control.erl"},{line,88}]},{rabbit_access_control,'-check_user_login/2-fun-0-',4,[{file,"src/rabbit_access_control.erl"},{line,74}]},{lists,foldl,3,[{file,"lists.erl"},{line,1263}]},{rabbit_reader,auth_phase,2,[{file,"src/rabbit_reader.erl"},{line,1310}]},{rabbit_reader,handle_method0,3,[{file,"src/rabbit_reader.erl"},{line,1089}]},{rabbit_reader,handle_input,3,[{file,"src/rabbit_reader.erl"},{line,1004}]},{rabbit_reader,recvloop,4,[{file,"src/rabbit_reader.erl"},{line,461}]}]}}

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