# Migrating from alpha8 to latest git

**URL:** <https://discourse.libretime.org/t/migrating-from-alpha8-to-latest-git/722>\
**Category:** Get Help\
**Created:** [December 1, 2020, 8:31pm UTC](https://discourse.libretime.org/t/migrating-from-alpha8-to-latest-git/722 "2020-12-01T20:31:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![matias-tecnosoul](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.libretime.org/matias-tecnosoul/32/341_2.png) [@matias-tecnosoul](https://discourse.libretime.org/u/matias-tecnosoul)\
**Post date:** [December 1, 2020, 8:31pm UTC](https://discourse.libretime.org/t/migrating-from-alpha8-to-latest-git/722/1 "2020-12-01T20:31:52Z")

</div>

Hello, we’ve just **moved an alpha8 LibreTime install in an Ubuntu 16.04 server to a v63db4e0b8 (nov30) install in a 18.04 server**. (we found a Xmrig Trojan eating all the cpus in the 16.04 server a couple of days ago, but that’s another story)

We followed the backup guide in [libretime.org/backing-up-the-server](https://libretime.org/backing-up-the-server) and it seemed to work allright except that we changed the hostname in the process and got to the RabbitMq issues point 🙂

The “new” thing to me was that after following the steps in [libretime.org/troubleshooting#rabbitmq-hostname-changes](https://libretime.org/troubleshooting#rabbitmq-hostname-changes) (which I’ve done quite a few times already) I was still getting a message related to Rabbitmq but with a different bit:

airtime\_analyzer.log

```
[message_listener] [ERROR] Connection to message queue failed.
[message_listener] [ERROR] (403, "ACCESS_REFUSED - access to exchange 'airtime-uploads' in vhost '/airtime' refused for user 'airtime
[message_listener] [INFO] Retrying in 5 seconds...

```

The “ **airtime-uploads** ” part was new to me or at least I haven’t seen it before.

Checking the related part in the guide above:

```auto
rabbitmqctl set_permissions -p /airtime airtime
   "airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor"
   "airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor"
   "airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor"

```

I realized the “airtime-uploads” part wasn’t present in the command but I wasn’t sure if it was implied in those permissions.

I listed the permissions set with:

```auto
#rabbitmqctl list_permissions -p /airtime
Listing permissions in vhost "/airtime"airtime	airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor	airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor

```

After trying a couple of times and searching a bit without success I just tried adding the required permission to the ones in the guide doing:

`rabbitmqctl set_permissions -p /airtime airtime "airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor|airtime-uploads" "airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor|airtime-uploads" "airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor|airtime-uploads"`

Now I get :

```
# rabbitmqctl list_permissions -p /airtime
Listing permissions in vhost "/airtime"
airtime airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor|airtime-uploads airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor|airtime-uploads airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor|airtime-uploads

```

and LibreTime seems to be working ok.

**My questions are:**

**-Should the migration from alpha8 in ubuntu16 to v63db4e0b8 in ubuntu18 work ok?**

I mean not only the database import and store folder copying but with the Libretime functioning itself.

**-Are there any other things I should check in the new install?**

**-Are the docs outdated regarding RabbitMQ hostname changes?**

as usual, thanx a lot,  
Matias

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<div class="post-metadata">

**Author:** ![matias-tecnosoul](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.libretime.org/matias-tecnosoul/32/341_2.png) [@matias-tecnosoul](https://discourse.libretime.org/u/matias-tecnosoul)\
**Post date:** [December 1, 2020, 8:46pm UTC](https://discourse.libretime.org/t/migrating-from-alpha8-to-latest-git/722/2 "2020-12-01T20:46:39Z")

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I’ve just seen a Celery error in the “status” tab but dissapeared a couple of minutes ago.  
I checked the Celery status :

```
Dec 01 17:01:34 celery[21968]: File "/usr/local/lib/python3.6/dist-packages/amqp-2.6.1-py3.6.egg/amqp/channel.py", line 280, in _on_close
Dec 01 17:01:34 celery[21968]: reply_code, reply_text, (class_id, method_id), ChannelError,
Dec 01 17:01:34 celery[21968]: amqp.exceptions.AccessRefused: Exchange.declare: (403) ACCESS_REFUSED - access to exchange 'reply.celery.pidbox' in vhos

```

and in rabbitmq/rabbit@servername.log

=I NFO REPORT==== 1-Dec-2020::17:34:50 ===  
accepting AMQP connection \<0.15677.8\> (127.0.0.1:54790 -\> 127.0.0.1:5672)

```
=INFO REPORT==== 1-Dec-2020::17:34:50 ===
connection <0.15677.8> (127.0.0.1:54790 -> 127.0.0.1:5672): user 'airtime' authenticated and granted access to vhost '/airtime'

=ERROR REPORT==== 1-Dec-2020::17:34:50 ===
Channel error on connection <0.15670.8> (127.0.0.1:54788 -> 127.0.0.1:5672, vhost: '/airtime', user: 'airtime'), channel 1:
operation exchange.declare caused a channel exception access_refused: access to exchange 'reply.celery.pidbox' in vhost '/airtime' refused for user 'airtime'

```

The playback went on without problems. And when I checked the Status tab again everything was “green” again without touching anything.

I tried restarting Celery anyway but I’m still getting this error:  
`celery: amqp.exceptions.AccessRefused: Exchange.declare: (403) ACCESS_REFUSED - access to exchange 'reply.celery.pidbox' in vhos`

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<div class="post-metadata">

**Author:** ![hairmare](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.libretime.org/hairmare/32/38_2.png) [@hairmare](https://discourse.libretime.org/u/hairmare)\
**Post date:** [December 16, 2020, 9:47pm UTC](https://discourse.libretime.org/t/migrating-from-alpha8-to-latest-git/722/3 "2020-12-16T21:47:32Z")

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Do the RabbitMQ credentials in your `airtime.ini` match with how RabbitMQ is configured?