Postgres did it perfectly, but as I would like to enable this option in my
production servers I changed two configs in galaxy.ini:

# This enables splitting of jobs into tasks, if specified by the particular
tool config.
# This is a new feature and not recommended for production servers yet.
use_tasked_jobs = True
local_task_queue_workers = 4

So I have two questions,
1. Why is this not appropriate for productions server yet?
2. What is local_task_queue_workers doing? I think I misunderstand
something because I put this parameter in the tool config file:
   <parallelism method="basic"* split_size="20" *
on ther other hand, I don't see any documentation about parallelism tag, is
there any?

Would you so kind to answer me, please?


On 5 February 2015 at 15:14, Peter Cock <p.j.a.c...@googlemail.com> wrote:

> Hi Roberto, Hans-Rudolf,
> I can confirm from personal testing that enabling the
> parallelism task-splitting in Galaxy does not work
> well with SQLite.
> This caused me problems with development and
> testing since my development Galaxy instance uses
> SQLite. As you found, testing with smaller splits
> is one way round this, to reduce the chances of
> a database lock.
> We use PostgreSQL as recommended on our
> production Galaxy instance with parallelism enabled,
> and it works nicely.
> Peter
> On Thu, Feb 5, 2015 at 1:53 PM, Hans-Rudolf Hotz <h...@fmi.ch> wrote:
> > Hi
> >
> > I can't promise, this is the solution for your specific problem, but you
> > will always run into "database is locked" issue, when using SQLite.
> >
> > Hence, I strongly recommend to switch to a PostgreSQL database as the
> > back-end for Galaxy (see also:
> >
> https://wiki.galaxyproject.org/Admin/Config/Performance/ProductionServer#Switching_to_a_database_server
> > )
> >
> > Hans-Rudolf

Roberto Alonso
Functional Genomics Unit
Bioinformatics and Genomics Department
Prince Felipe Research Center (CIPF)
C./Eduardo Primo Yúfera (Científic), nº 3
(junto Oceanografico)
46012 Valencia, Spain
Tel: +34 963289680 Ext. 1021
Fax: +34 963289574
E-Mail: ralo...@cipf.es
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