Oops, yes, 15 seconds, sorry.  Operating without much sleep. :P

On Mon, Jan 23, 2017 at 12:35 PM, Arthur Wiedmer <[email protected]>
wrote:

> Chris,
>
> Just double checking, you mean more than 15 seconds not 15 minutes, right?
>
> Best,
> Arthur
>
> On Mon, Jan 23, 2017 at 12:27 PM, Chris Riccomini <[email protected]>
> wrote:
>
> > Hey all,
> >
> > I've upgraded on production. Things seem to be working so far (only been
> an
> > hour), but I am seeing this in the scheduler logs:
> >
> > File Path                                                             PID
> >  Runtime    Last Runtime    Last Run
> > ------------------------------------------------------------------
> -----
> >  ---------  --------------  -------------------
> > ...
> > /etc/airflow/dags/dags/elt/el/db.py
>  24793
> >  43.41s     986.63s         2017-01-23T20:04:09
> > ...
> >
> > It seems to be taking more than 15 minutes to parse this DAG. Any idea
> > what's causing this? Scheduler config:
> >
> > [scheduler]
> > job_heartbeat_sec = 5
> > scheduler_heartbeat_sec = 5
> > max_threads = 2
> > child_process_log_directory = /var/log/airflow/scheduler
> >
> > The db.py file, itself, doesn't interact with any outside systems, so I
> > would have expected this to not take so long. It does, however,
> > programmatically generate many DAGs within the single .py file.
> >
> > A snippet of the scheduler log is here:
> >
> > https://gist.github.com/criccomini/a2b2762763c8ba65fefcdd669e8ffd65
> >
> > Note how there are 10-15 second gaps occasionally. Any idea what's going
> > on?
> >
> > Cheers,
> > Chris
> >
> > On Sun, Jan 22, 2017 at 4:42 AM, Bolke de Bruin <[email protected]>
> wrote:
> >
> > > I created:
> > >
> > > - AIRFLOW-791: At start up all running dag_runs are being checked, but
> > not
> > > fixed
> > > - AIRFLOW-790: DagRuns do not exist for certain tasks, but don’t get
> > fixed
> > > - AIRFLOW-788: Context unexpectedly added to hive conf
> > > - AIRFLOW-792: Allow fixing of schedule when wrong start_date /
> interval
> > > was specified
> > >
> > > I created AIRFLOW-789 to update UPDATING.md, it is also out as a PR.
> > >
> > > Please note that I don't consider any of these blockers for a release
> of
> > > 1.8.0 and can be fixed in 1.8.1 - so we are still on track for an RC on
> > Feb
> > > 2. However if people are using a restarting scheduler (run_duration is
> > set)
> > > and have a lot of running dag runs they won’t like AIRFLOW-791. So a
> > > workaround for this would be nice (we just updated dag_runs directly in
> > the
> > > database to say ‘finished’ before a certain date, but we are also not
> > using
> > > the run_duration).
> > >
> > > Bolke
> > >
> > >
> > >
> > > > On 20 Jan 2017, at 23:55, Bolke de Bruin <[email protected]> wrote:
> > > >
> > > > Will do. And thanks.
> > > >
> > > > Adding another issue:
> > > >
> > > > * Some of our DAGs are not getting scheduled for some unknown reason.
> > > > Need to investigate why.
> > > >
> > > > Related but not root cause:
> > > > * Logging is so chatty that it gets really hard to find the real
> issue
> > > >
> > > > Bolke.
> > > >
> > > >> On 20 Jan 2017, at 23:45, Dan Davydov <[email protected].
> > INVALID>
> > > wrote:
> > > >>
> > > >> I'd be happy to lend a hand fixing these issues and hopefully some
> > > others
> > > >> are too. Do you mind creating jiras for these since you have the
> full
> > > >> context? I have created a JIRA for (1) and have assigned it to
> myself:
> > > >> https://issues.apache.org/jira/browse/AIRFLOW-780
> > > >>
> > > >> On Fri, Jan 20, 2017 at 1:01 AM, Bolke de Bruin <[email protected]>
> > > wrote:
> > > >>
> > > >>> This is to report back on some of the (early) experiences we have
> > with
> > > >>> Airflow 1.8.0 (beta 1 at the moment):
> > > >>>
> > > >>> 1. The UI does not show faulty DAG, leading to confusion for
> > > developers.
> > > >>> When a faulty dag is placed in the dags folder the UI would report
> a
> > > >>> parsing error. Now it doesn’t due to the separate parising (but not
> > > >>> reporting back errors)
> > > >>>
> > > >>> 2. The hive hook sets ‘airflow.ctx.dag_id’ in hive
> > > >>> We run in a secure environment which requires this variable to be
> > > >>> whitelisted if it is modified (needs to be added to UPDATING.md)
> > > >>>
> > > >>> 3. DagRuns do not exist for certain tasks, but don’t get fixed
> > > >>> Log gets flooded without a suggestion what to do
> > > >>>
> > > >>> 4. At start up all running dag_runs are being checked, we seemed to
> > > have a
> > > >>> lot of “left over” dag_runs (couple of thousand)
> > > >>> - Checking was logged to INFO -> requires a fsync for every log
> > message
> > > >>> making it very slow
> > > >>> - Checking would happen at every restart, but dag_runs’ states were
> > not
> > > >>> being updated
> > > >>> - These dag_runs would never er be marked anything else than
> running
> > > for
> > > >>> some reason
> > > >>> -> Applied work around to update all dag_run in sql before a
> certain
> > > date
> > > >>> to -> finished
> > > >>> -> need to investigate why dag_runs did not get marked
> > > “finished/failed”
> > > >>>
> > > >>> 5. Our umask is set to 027
> > > >>>
> > > >>>
> > > >
> > >
> > >
> >
>

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