Re: [sqlite] Sqlite with Docker and mounted volumes

2017-02-02 Thread Sebastián Guevara
That's a good point. Thank you Keith!

On Thu, Feb 2, 2017 at 12:12 AM, Keith Medcalf  wrote:

> If it is a remote filesystem (vs a local filesystem) then you must also
> have only one connection (ever) to the database file at any given time.
> Otherwise you may have issues.  (Note "Single User" does not mean "Single
> Connection")
>
> > Hi Simon.  Thank you for your answer. It's single user and without
> > concurrency.
> >
> >
> > On Feb 1, 2017 18:32, "Simon Slavin"  wrote:
> >
> >
> > On 1 Feb 2017, at 5:08pm, Sebastián Guevara  >
> > wrote:
> >
> > > Hello to all. We are contemplating using SQLite from within a Docker
> > > container accessing a DB on a mounted volume.
> >
> > Does your setup involve two or more users accessing the data at the same
> > time ?  It’s possible that locking won't work properly.
> >
> > Sorry I can’t answer your question, but the above occurred to me when I
> > read it.
> >
> > Simon.
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>
>
>
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Re: [sqlite] Sqlite with Docker and mounted volumes

2017-02-01 Thread Keith Medcalf
If it is a remote filesystem (vs a local filesystem) then you must also have 
only one connection (ever) to the database file at any given time.  Otherwise 
you may have issues.  (Note "Single User" does not mean "Single Connection")

> Hi Simon.  Thank you for your answer. It's single user and without
> concurrency.
> 
> 
> On Feb 1, 2017 18:32, "Simon Slavin"  wrote:
> 
> 
> On 1 Feb 2017, at 5:08pm, Sebastián Guevara 
> wrote:
> 
> > Hello to all. We are contemplating using SQLite from within a Docker
> > container accessing a DB on a mounted volume.
> 
> Does your setup involve two or more users accessing the data at the same
> time ?  It’s possible that locking won't work properly.
> 
> Sorry I can’t answer your question, but the above occurred to me when I
> read it.
> 
> Simon.
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Re: [sqlite] Sqlite with Docker and mounted volumes

2017-02-01 Thread Keith Medcalf

If it is a local filesystem mounting a remote block device no problem.  If it 
is a remote filesystem, then caveats apply (most remote/network filesystems are 
very broken when it comes to locking sematics)

> -Original Message-
> From: sqlite-users [mailto:sqlite-users-boun...@mailinglists.sqlite.org]
> On Behalf Of Sebastián Guevara
> Sent: Wednesday, 1 February, 2017 12:09
> To: sqlite-users@mailinglists.sqlite.org
> Subject: [sqlite] Sqlite with Docker and mounted volumes
> 
> Hello to all. We are contemplating using SQLite from within a Docker
> container accessing a DB on a mounted volume. I don't expect any
> performance issues if the mounted volume is a directory from the host
> machine. But what if it's a shared storage, something like Flocker (
> https://clusterhq.com/flocker/introduction/)? Have anyone of you had
> experience using SQLite in such an environment? I fear the degradation
> will
> be big, but haven't been able to test it yet.
> 
> Regards,
> 
>  Sebastian
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Re: [sqlite] Sqlite with Docker and mounted volumes

2017-02-01 Thread Sebastián Guevara
Hi Simon.  Thank you for your answer. It's single user and without
concurrency.


On Feb 1, 2017 18:32, "Simon Slavin"  wrote:


On 1 Feb 2017, at 5:08pm, Sebastián Guevara 
wrote:

> Hello to all. We are contemplating using SQLite from within a Docker
> container accessing a DB on a mounted volume.

Does your setup involve two or more users accessing the data at the same
time ?  It’s possible that locking won't work properly.

Sorry I can’t answer your question, but the above occurred to me when I
read it.

Simon.
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Re: [sqlite] Sqlite with Docker and mounted volumes

2017-02-01 Thread Simon Slavin

On 1 Feb 2017, at 5:08pm, Sebastián Guevara  wrote:

> Hello to all. We are contemplating using SQLite from within a Docker
> container accessing a DB on a mounted volume.

Does your setup involve two or more users accessing the data at the same time ? 
 It’s possible that locking won't work properly.

Sorry I can’t answer your question, but the above occurred to me when I read it.

Simon.
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[sqlite] Sqlite with Docker and mounted volumes

2017-02-01 Thread Sebastián Guevara
Hello to all. We are contemplating using SQLite from within a Docker
container accessing a DB on a mounted volume. I don't expect any
performance issues if the mounted volume is a directory from the host
machine. But what if it's a shared storage, something like Flocker (
https://clusterhq.com/flocker/introduction/)? Have anyone of you had
experience using SQLite in such an environment? I fear the degradation will
be big, but haven't been able to test it yet.

Regards,

 Sebastian
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