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Posted to users@airflow.apache.org by hotmail <zh...@hotmail.com> on 2020/01/04 09:31:10 UTC

Re: Kill airflow-scheduler without having to manually kill all scheduler PIDs?

Hi, Villanueva.

I don’t find any out of box way to kill all webserver or scheduler.
I alway use some bash script to kill all the webserver or scheduler, just like below

```
ps aux | grep webserver | grep -v grep | awk '{print $2}' | xargs kill -9
```

If you want to kill scheduler , just change webserver to scheduler


Best Wish
— Jiajie



> On Dec 28, 2019, at 02:24, Reed Villanueva <rv...@ucera.org> wrote:
> 
> Running airflow (v1.10.5) with LocalExecutor and finding that when wanting to restart or otherwise kill the scheduler daemon (started via airflow scheduler -D), need to manually kill -9 ... each scheduler process, eg...
> 
> [airflow@airflowetl airflow]$ ps -aux | grep scheduler
> airflow    9137  2.0  0.1 723196 72964 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9141  0.5  0.1 1503344 72724 ?       Sl   11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9149  0.0  0.1 722940 71408 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9150  0.0  0.1 722940 71408 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9154  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9157  0.0  0.1 722940 71408 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9162  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9166  0.0  0.1 722940 71416 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9171  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9175  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9181  0.7  0.1 723344 72808 ?        S    11:06   0:00 airflow scheduler -- DagFileProcessorManager
> 
> [airflow@airflowetl airflow]$ kill -9 $(cat $AIRFLOW_HOME/airflow-scheduler.pid) 9181 9175 ...
> Is there an easier way to kill the scheduler (and webserver) daemon(s)? Ie. without having to kill all scheduler daemon instances manually (not just the PID in airflow-scheduler.pid file and named PID).
> 
> 
> This electronic message is intended only for the named 
> recipient, and may contain information that is confidential or 
> privileged. If you are not the intended recipient, you are 
> hereby notified that any disclosure, copying, distribution or 
> use of the contents of this message is strictly prohibited. If 
> you have received this message in error or are not the named
> recipient, please notify us immediately by contacting the 
> sender at the electronic mail address noted above, and delete 
> and destroy all copies of this message. Thank you.


Re: Kill airflow-scheduler without having to manually kill all scheduler PIDs?

Posted by Jarek Potiuk <Ja...@polidea.com>.
Right - seems that systemd default behaviour is to use "control-group" kill
mode which kills all the processes spawned by airflow:
https://www.freedesktop.org/software/systemd/man/systemd.kill.html# -
that's why it works nicely.

J.

On Sat, Jan 4, 2020 at 12:08 PM Kaxil Naik <ka...@gmail.com> wrote:

> I generally use systemd integration. It has various benefits like
> restarting on failure, start with certain sets of env vars and as a cetain
> user.
>
> You can use "systemctl stop airflow-webserver" or "systemctl start
> airflow-webserver"
>
> Regards,
> Kaxil
>
> On Sat, Jan 4, 2020, 11:03 Jarek Potiuk <Ja...@polidea.com> wrote:
>
>> I am not sure what the current behaviour is, but I brought the subject to
>> devlist
>> https://lists.apache.org/thread.html/0b9881d2a70dfeacc7371f45b672ec1f1691868fe23dae1553002521%40%3Cdev.airflow.apache.org%3E .
>> I hope we can get some more insight from other committers/contributors and
>> we will describe/implement some good ways of killing the
>> webserver/scheduler (if there are no good ones currently).
>>
>> J
>>
>> On Sat, Jan 4, 2020 at 10:31 AM hotmail <zh...@hotmail.com>
>> wrote:
>>
>>> Hi, Villanueva.
>>>
>>> I don’t find any out of box way to kill all webserver or scheduler.
>>> I alway use some bash script to kill all the webserver or scheduler,
>>> just like below
>>>
>>> ```
>>> ps aux | grep webserver | grep -v grep | awk '{print $2}' | xargs kill -9
>>> ```
>>>
>>> If you want to kill scheduler , just change webserver to scheduler
>>>
>>>
>>> Best Wish
>>> — Jiajie
>>>
>>>
>>>
>>> On Dec 28, 2019, at 02:24, Reed Villanueva <rv...@ucera.org>
>>> wrote:
>>>
>>> Running airflow (v1.10.5) with LocalExecutor and finding that when
>>> wanting to restart or otherwise kill the scheduler daemon (started via airflow
>>> scheduler -D), need to *manually* kill -9 ... each scheduler process,
>>> eg...
>>>
>>> [airflow@airflowetl airflow]$ ps -aux | grep scheduler
>>> airflow    9137  2.0  0.1 723196 72964 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>>> airflow    9141  0.5  0.1 1503344 72724 ?       Sl   11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>>> airflow    9149  0.0  0.1 722940 71408 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>>> airflow    9150  0.0  0.1 722940 71408 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>>> airflow    9154  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>>> airflow    9157  0.0  0.1 722940 71408 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>>> airflow    9162  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>>> airflow    9166  0.0  0.1 722940 71416 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>>> airflow    9171  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>>> airflow    9175  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>>> airflow    9181  0.7  0.1 723344 72808 ?        S    11:06   0:00 airflow scheduler -- DagFileProcessorManager
>>>
>>> [airflow@airflowetl airflow]$ kill -9 $(cat $AIRFLOW_HOME/airflow-scheduler.pid) 9181 9175 ...
>>>
>>> Is there an easier way to kill the scheduler (and webserver) daemon(s)?
>>> Ie. without having to kill all scheduler daemon instances manually (not
>>> just the PID in airflow-scheduler.pid file and named PID).
>>>
>>> This electronic message is intended only for the named
>>> recipient, and may contain information that is confidential or
>>> privileged. If you are not the intended recipient, you are
>>> hereby notified that any disclosure, copying, distribution or
>>> use of the contents of this message is strictly prohibited. If
>>> you have received this message in error or are not the named
>>> recipient, please notify us immediately by contacting the
>>> sender at the electronic mail address noted above, and delete
>>> and destroy all copies of this message. Thank you.
>>>
>>>
>>>
>>
>> --
>>
>> Jarek Potiuk
>> Polidea <https://www.polidea.com/> | Principal Software Engineer
>>
>> M: +48 660 796 129 <+48660796129>
>> [image: Polidea] <https://www.polidea.com/>
>>
>>

-- 

Jarek Potiuk
Polidea <https://www.polidea.com/> | Principal Software Engineer

M: +48 660 796 129 <+48660796129>
[image: Polidea] <https://www.polidea.com/>

Re: Kill airflow-scheduler without having to manually kill all scheduler PIDs?

Posted by Kaxil Naik <ka...@gmail.com>.
I generally use systemd integration. It has various benefits like
restarting on failure, start with certain sets of env vars and as a cetain
user.

You can use "systemctl stop airflow-webserver" or "systemctl start
airflow-webserver"

Regards,
Kaxil

On Sat, Jan 4, 2020, 11:03 Jarek Potiuk <Ja...@polidea.com> wrote:

> I am not sure what the current behaviour is, but I brought the subject to
> devlist
> https://lists.apache.org/thread.html/0b9881d2a70dfeacc7371f45b672ec1f1691868fe23dae1553002521%40%3Cdev.airflow.apache.org%3E .
> I hope we can get some more insight from other committers/contributors and
> we will describe/implement some good ways of killing the
> webserver/scheduler (if there are no good ones currently).
>
> J
>
> On Sat, Jan 4, 2020 at 10:31 AM hotmail <zh...@hotmail.com>
> wrote:
>
>> Hi, Villanueva.
>>
>> I don’t find any out of box way to kill all webserver or scheduler.
>> I alway use some bash script to kill all the webserver or scheduler, just
>> like below
>>
>> ```
>> ps aux | grep webserver | grep -v grep | awk '{print $2}' | xargs kill -9
>> ```
>>
>> If you want to kill scheduler , just change webserver to scheduler
>>
>>
>> Best Wish
>> — Jiajie
>>
>>
>>
>> On Dec 28, 2019, at 02:24, Reed Villanueva <rv...@ucera.org> wrote:
>>
>> Running airflow (v1.10.5) with LocalExecutor and finding that when
>> wanting to restart or otherwise kill the scheduler daemon (started via airflow
>> scheduler -D), need to *manually* kill -9 ... each scheduler process,
>> eg...
>>
>> [airflow@airflowetl airflow]$ ps -aux | grep scheduler
>> airflow    9137  2.0  0.1 723196 72964 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>> airflow    9141  0.5  0.1 1503344 72724 ?       Sl   11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>> airflow    9149  0.0  0.1 722940 71408 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>> airflow    9150  0.0  0.1 722940 71408 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>> airflow    9154  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>> airflow    9157  0.0  0.1 722940 71408 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>> airflow    9162  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>> airflow    9166  0.0  0.1 722940 71416 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>> airflow    9171  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>> airflow    9175  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
>> airflow    9181  0.7  0.1 723344 72808 ?        S    11:06   0:00 airflow scheduler -- DagFileProcessorManager
>>
>> [airflow@airflowetl airflow]$ kill -9 $(cat $AIRFLOW_HOME/airflow-scheduler.pid) 9181 9175 ...
>>
>> Is there an easier way to kill the scheduler (and webserver) daemon(s)?
>> Ie. without having to kill all scheduler daemon instances manually (not
>> just the PID in airflow-scheduler.pid file and named PID).
>>
>> This electronic message is intended only for the named
>> recipient, and may contain information that is confidential or
>> privileged. If you are not the intended recipient, you are
>> hereby notified that any disclosure, copying, distribution or
>> use of the contents of this message is strictly prohibited. If
>> you have received this message in error or are not the named
>> recipient, please notify us immediately by contacting the
>> sender at the electronic mail address noted above, and delete
>> and destroy all copies of this message. Thank you.
>>
>>
>>
>
> --
>
> Jarek Potiuk
> Polidea <https://www.polidea.com/> | Principal Software Engineer
>
> M: +48 660 796 129 <+48660796129>
> [image: Polidea] <https://www.polidea.com/>
>
>

Re: Kill airflow-scheduler without having to manually kill all scheduler PIDs?

Posted by Jarek Potiuk <Ja...@polidea.com>.
I am not sure what the current behaviour is, but I brought the subject to
devlist
https://lists.apache.org/thread.html/0b9881d2a70dfeacc7371f45b672ec1f1691868fe23dae1553002521%40%3Cdev.airflow.apache.org%3E
.
I hope we can get some more insight from other committers/contributors and
we will describe/implement some good ways of killing the
webserver/scheduler (if there are no good ones currently).

J

On Sat, Jan 4, 2020 at 10:31 AM hotmail <zh...@hotmail.com> wrote:

> Hi, Villanueva.
>
> I don’t find any out of box way to kill all webserver or scheduler.
> I alway use some bash script to kill all the webserver or scheduler, just
> like below
>
> ```
> ps aux | grep webserver | grep -v grep | awk '{print $2}' | xargs kill -9
> ```
>
> If you want to kill scheduler , just change webserver to scheduler
>
>
> Best Wish
> — Jiajie
>
>
>
> On Dec 28, 2019, at 02:24, Reed Villanueva <rv...@ucera.org> wrote:
>
> Running airflow (v1.10.5) with LocalExecutor and finding that when
> wanting to restart or otherwise kill the scheduler daemon (started via airflow
> scheduler -D), need to *manually* kill -9 ... each scheduler process,
> eg...
>
> [airflow@airflowetl airflow]$ ps -aux | grep scheduler
> airflow    9137  2.0  0.1 723196 72964 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9141  0.5  0.1 1503344 72724 ?       Sl   11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9149  0.0  0.1 722940 71408 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9150  0.0  0.1 722940 71408 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9154  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9157  0.0  0.1 722940 71408 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9162  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9166  0.0  0.1 722940 71416 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9171  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9175  0.0  0.1 722940 71412 ?        S    11:06   0:00 /usr/bin/python3 /home/airflow/.local/bin/airflow scheduler -D
> airflow    9181  0.7  0.1 723344 72808 ?        S    11:06   0:00 airflow scheduler -- DagFileProcessorManager
>
> [airflow@airflowetl airflow]$ kill -9 $(cat $AIRFLOW_HOME/airflow-scheduler.pid) 9181 9175 ...
>
> Is there an easier way to kill the scheduler (and webserver) daemon(s)?
> Ie. without having to kill all scheduler daemon instances manually (not
> just the PID in airflow-scheduler.pid file and named PID).
>
> This electronic message is intended only for the named
> recipient, and may contain information that is confidential or
> privileged. If you are not the intended recipient, you are
> hereby notified that any disclosure, copying, distribution or
> use of the contents of this message is strictly prohibited. If
> you have received this message in error or are not the named
> recipient, please notify us immediately by contacting the
> sender at the electronic mail address noted above, and delete
> and destroy all copies of this message. Thank you.
>
>
>

-- 

Jarek Potiuk
Polidea <https://www.polidea.com/> | Principal Software Engineer

M: +48 660 796 129 <+48660796129>
[image: Polidea] <https://www.polidea.com/>