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Posted to jdo-dev@db.apache.org by er...@jpox.org on 2005/12/23 15:36:54 UTC
failover
Hi,
The standard allows setting up one data source per PMF. Failover mechanism to
recover from like "cannot obtain a connection" or "broken connections" are not
covered. Wouldn't be beneficial to cover such scenarios than upon failure will
switch to a backup data source?
Regards,
Erik Bengtson
Re: failover
Posted by Craig L Russell <Cr...@Sun.COM>.
Hi,
I think it would be fine to raise a feature request on JIRA to track
it. I could see it in a future JDO spec being a standard set of
optional features given enough discussion.
Craig
On Dec 24, 2005, at 1:42 AM, erik@jpox.org wrote:
> Ok thanks. Do you think it should be considered for JDO 2.1 or 3? I
> can raise a JIRA feature request, so it might be easier to keep
> track later.
>
>
>
> Erik Bengtson
>
>
>
> -----Original Message-----
> From: Craig.Russell@Sun.COM [mailto:Craig.Russell@Sun.COM]
> Sent: Friday, December 23, 2005 11:16 PM
> To: JDO Expert Group; Apache JDO project
> Subject: Re: failover
>
>
>
> Hi Erik,
>
>
>
> I'm afraid I don't have the energy to take on this addition to the
> spec, but I'd encourage you to see if you can find other like-
> minded folks to make a standard set of connection properties for
> failover.
>
>
>
> You can start a wiki page on the apache jdo site. You can use
> org.apache.jdo.options.failover as a prefix for the property names
> if they are discussed and agreed by the apache jdo project.
>
>
>
> Does this give you enough direction on a strategy for standardizing
> the names?
>
>
>
> Regards,
>
>
>
> Craig
>
>
>
> On Dec 23, 2005, at 6:36 AM, erik@jpox.org wrote:
>
>
>
>
> Hi,
>
>
>
> The standard allows setting up one data source per PMF. Failover
> mechanism to
>
> recover from like "cannot obtain a connection" or "broken
> connections" are not
>
> covered. Wouldn't be beneficial to cover such scenarios than upon
> failure will
>
> switch to a backup data source?
>
>
>
> Regards,
>
>
>
> Erik Bengtson
>
>
>
> Craig Russell
> Architect, Sun Java Enterprise System http://java.sun.com/products/jdo
> 408 276-5638 mailto:Craig.Russell@sun.com
> P.S. A good JDO? O, Gasp!
>
>
>
Craig Russell
Architect, Sun Java Enterprise System http://java.sun.com/products/jdo
408 276-5638 mailto:Craig.Russell@sun.com
P.S. A good JDO? O, Gasp!
RE: failover
Posted by er...@jpox.org.
Ok thanks. Do you think it should be considered for JDO 2.1 or 3? I can
raise a JIRA feature request, so it might be easier to keep track later.
Erik Bengtson
-----Original Message-----
From: Craig.Russell@Sun.COM [mailto:Craig.Russell@Sun.COM]
Sent: Friday, December 23, 2005 11:16 PM
To: JDO Expert Group; Apache JDO project
Subject: Re: failover
Hi Erik,
I'm afraid I don't have the energy to take on this addition to the spec,
but I'd encourage you to see if you can find other like-minded folks to
make a standard set of connection properties for failover.
You can start a wiki page on the apache jdo site. You can use
org.apache.jdo.options.failover as a prefix for the property names if
they are discussed and agreed by the apache jdo project.
Does this give you enough direction on a strategy for standardizing the
names?
Regards,
Craig
On Dec 23, 2005, at 6:36 AM, erik@jpox.org wrote:
Hi,
The standard allows setting up one data source per PMF. Failover
mechanism to
recover from like "cannot obtain a connection" or "broken connections"
are not
covered. Wouldn't be beneficial to cover such scenarios than upon
failure will
switch to a backup data source?
Regards,
Erik Bengtson
Craig Russell
Architect, Sun Java Enterprise System http://java.sun.com/products/jdo
408 276-5638 mailto:Craig.Russell@sun.com
P.S. A good JDO? O, Gasp!
Re: failover
Posted by Craig L Russell <Cr...@Sun.COM>.
Hi Erik,
I'm afraid I don't have the energy to take on this addition to the
spec, but I'd encourage you to see if you can find other like-minded
folks to make a standard set of connection properties for failover.
You can start a wiki page on the apache jdo site. You can use
org.apache.jdo.options.failover as a prefix for the property names if
they are discussed and agreed by the apache jdo project.
Does this give you enough direction on a strategy for standardizing
the names?
Regards,
Craig
On Dec 23, 2005, at 6:36 AM, erik@jpox.org wrote:
> Hi,
>
> The standard allows setting up one data source per PMF. Failover
> mechanism to
> recover from like "cannot obtain a connection" or "broken
> connections" are not
> covered. Wouldn't be beneficial to cover such scenarios than upon
> failure will
> switch to a backup data source?
>
> Regards,
>
> Erik Bengtson
Craig Russell
Architect, Sun Java Enterprise System http://java.sun.com/products/jdo
408 276-5638 mailto:Craig.Russell@sun.com
P.S. A good JDO? O, Gasp!