Michael L Martin
Wed May 13 02:59:55 CEST 2015
But who watches the watchdog?
On 05/12/2015 05:37 PM, Miles Fidelman wrote:
>> On Mon, May 11, 2015 at 9:13 PM, Roberto Ostinelli <
>> > wrote:
>> >/ In non-erlang systems, I would have standard watchdogs that
>> launch an
>> />/ application on OS boot, and then monitor it and relaunch it if
>> The heart system in Erlang is a simple watchdog, mostly used if you
>> else that will restart your application. In an SysV init system,
>> there is
>> no automatic watching and restart. In RcNG in FreeBSD, there is no
>> In OpenBSDs rc, there is no automatic restart.
> Wait a minute - isn't that what respawn does in a SysV init environment?
> Of course that only works if the VM well and truly dies. If it locks
> up, you still have a problem.
> Anybody see a reason you couldn't:
> 1. start BEAM with respawn
> 2. start a separate watchdog process that periodically runs a few
> tests to see if BEAM is running properly,
> and if not, KILLs the process - at which point respawn would take care
> of a restart.
> Miles Fidelman
More information about the erlang-questions