# Why default handler unknown

**URL:** <https://discourse.sensu.io/t/why-default-handler-unknown/48>\
**Category:** Sensu Classic (EOL)\
**Created:** [June 22, 2013, 12:54pm UTC](https://discourse.sensu.io/t/why-default-handler-unknown/48 "2013-06-22T12:54:54Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![hasan\_kenar](https://avatars.discourse-cdn.com/v4/letter/h/919ad9/32.png) [@hasan\_kenar](https://discourse.sensu.io/u/hasan_kenar)\
**Post date:** [June 22, 2013, 12:54pm UTC](https://discourse.sensu.io/t/why-default-handler-unknown/48/1 "2013-06-22T12:54:54Z")

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1- {“timestamp”:“2013-06-22T15:40:24.806664+0300”,“level”:“error”,“message”:“unknown handler”,“handler\_name”:“default”} in sensu-server.log

It must be:

```auto
I, [2012-01-18T21:18:07.559666 #30970] INFO -- : [publisher]
-- publishing check request -- cron_check -- webservers {"message":"[publisher]
-- publishing check request -- cron_check -- webservers","level":"info","timestamp":"2012-01-18T21:18:07.
%6N-0700"}
I, [2012-01-18T21:25:07.745012 #30970] INFO -- : [result] -- received result
-- sensu-client.domain.tld -- cron_check -- 0 -- CheckProcs OK: Found 1 matching processes; cmd /crond/

```

2- sudo: /etc/init.d/crond: command not found. Why crond is not stopped by this command? crond is not in folder init.d

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**Author:** ![Nick\_Stielau](https://avatars.discourse-cdn.com/v4/letter/n/ed8c4c/32.png) [@Nick\_Stielau](https://discourse.sensu.io/u/Nick_Stielau)\
**Post date:** [June 25, 2013, 3:57pm UTC](https://discourse.sensu.io/t/why-default-handler-unknown/48/2 "2013-06-25T15:57:23Z")

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Hello,

I believe the docs may have been written against an older version of ubuntu. You could try `ps aux | grep cron` and killing the PID, or `initctl list | grep cron` and using the `service` command to stop cron that way. If you figure anything out, please report back and we can update the docs. Cheers

> **···**
>
> On Saturday, June 22, 2013 5:54:54 AM UTC-7, hasan kenar wrote:
> 
> > ```auto
> > I, [2012-01-18T21:18:07.559666 #30970] INFO -- : [publisher]
> > -- publishing check request -- cron_check -- webservers {"message":"[publisher]
> > -- publishing check request -- cron_check -- webservers","level":"info","timestamp":"2012-01-18T21:18:07.
> > %6N-0700"} I, [2012-01-18T21:25:07.745012 #30970] INFO -- : [result] -- received result
> > -- sensu-client.domain.tld -- cron_check -- 0 -- CheckProcs OK: Found 1 matching processes; cmd /crond/
> > 
> > ```
> > 
> > 1- {“timestamp”:“2013-06-22T15:40:24.806664+0300”,“level”:“error”,“message”:“unknown handler”,“handler\_name”:“default”} in sensu-server.log
> > 
> > It must be:
> > 
> > 2- sudo: /etc/init.d/crond: command not found. Why crond is not stopped by this command? crond is not in folder init.d

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**Author:** ![jspaleta](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.sensu.io/jspaleta/32/141_2.png) [@jspaleta](https://discourse.sensu.io/u/jspaleta)\
**Post date:** [November 22, 2018, 2:04am UTC](https://discourse.sensu.io/t/why-default-handler-unknown/48/3 "2018-11-22T02:04:55Z")

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