Matwey Kornilov 8c7305ccb7 Accepting request 1037964 from home:matwey:branches:devel:languages:erlang:Factory
- Changes for 25.1.2:
  * mnesia: Don't fill the logs if mnesia can't connect to all
    nodes, due to partitioned network.
  * erts: Add abandon carrier free utilization limit (+Muacful)
    option to erts_alloc. This option allows the user to mark
    unused segments in a memory carrier as re-useable by the OS if
    needed. This functionality was a non-configurable default
    before Erlang/OTP 25, but removed due to performance issues.

OBS-URL: https://build.opensuse.org/request/show/1037964
OBS-URL: https://build.opensuse.org/package/show/devel:languages:erlang:Factory/erlang?expand=0&rev=127
2022-12-05 15:12:04 +00:00

# Erlang in openSUSE
## Erlang Port-mapper Daemon and systemd

Erlang Port-mapper Daemon in openSUSE uses systemd socket-activation. In order to fulfill security considerations, EPMd listens on loop-back interface by default. This is enough to run rabbitmq-server, ejabberd and user-started beam processes.

For clustering, please, use ```/etc/systemd/system/epmd.socket.d/``` to configure interfaces to listen on. See man systemd.unit(5) for details.

### Upgrading from sysvinit
```/etc/sysconfig/erlang``` has no effect now, to configure EPMd use systemd capabilities instead.

### Example 1: change port
Create ```/etc/systemd/system/epmd.socket.d/port.conf``` with following content:
```
[Socket]
ListenStream=
ListenStream=127.0.0.1:4444
```
The first line is to discard vendor configuration. The second line will change the port number to listen on to 4444.

### Example 2: enable external interface
To enable accepting external connections to EPMd, create ```/etc/systemd/system/epmd.socket.d/port.conf``` with following content:
```
[Socket]
ListenStream=
ListenStream=0.0.0.0:4369
```
Description
No description provided
Readme 60 MiB
Languages
desktop 100%