On Mon, 16 Oct 2006 17:53:13 +0100 (BST)
Greig A Cowan <[log in to unmask]> wrote:
>
> Hi Owen,
>
> That's good to hear that the new version has been released.
>
> Is this the correct changelog to look at?
>
> http://www.dcache.org/manuals/Book/rf-changelog-1665-1681.shtml
>
> I think this page has been online for a while; are there any additional
> changes/bug fixes that made it into the release? What about the
> non-blocking I/O that should fix the CLOSE_WAIT problem?
It will fix it to a considerable degree, we found it occures to some degree in an old prerelease but no where near as much as before, we belive it shoudl be fixed now but only time in production will tell.
> Presumably you have tested the 1.6.6-5 -> 1.7.0-16 upgrade path. I ask
> because the link:
>
> http://www.dcache.org/manuals/yaim-dcache-howto.shtml
>
> states "For now this is only meant for installations from scratch". Were
> there any other problems during upgrade, for example, the integration
> of VOMs?
>
> Cheers,
> Greig
Yes its straight forward and waiting for me to finish the instructions, Yaim users see what I wrote before as this is the prefured solution. Bellow is the cut n paste from my README file in the upgrade RPM
REgards
Owen
The procedure for upgrading dCache from 1.6 to 1.7
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Background
~~~~~~~~~~
dCache has changed considerably between versions 1.6 and 1.7. Particularly with
respect to the SRM interface. Please see the change log in the dCache
documentation at dCache.org for details. These changes have inevitably led to
many additions to the dCache configuration. This RPM contains a simple script to
enable sites to easily upgrade thier version of dCache with the minimum effort.
Fortunately the databases of dCache have largely remained unchanged, and so pnfs
should can be upgraded with little to no effort.
Recipe to upgrade
~~~~~~~~~~~~~~~~~
The upgrade must run in three stages, preupgrade, then moving to more modern
RPM's and then a post upgrade stage.
Preupgrade recipe
~~~~~~~~~~~~~~~~~
Run the following commands
/etc/init.d/dcache-pool stop
/etc/init.d/dcache-core stop
/etc/init.d/pnfs stop
dropdb -U srmdcache billing
dropdb -U srmdcache dcache
dropdb -U srmdcache replicas
createdb -U srmdcache billing
createdb -U srmdcache dcache
createdb -U srmdcache replicas
psql -U srmdcache replicas -f /opt/d-cache/etc/psql_install_replicas.sql
Rpm Upgrade
~~~~~~~~~~~
Now upgrade the RPM's to the 1.7 release of dCache. This may be done via rpm.
Postupgrade recipe
~~~~~~~~~~~~~~~~~~
The system should now have the 1.7 release of dCache installed. We now need to
run the configuration upgrade script and start dCache.
sh /opt/d-cache/install/dCacheUpgrade_1_6-1_7.sh
/etc/init.d/pnfs start
/opt/d-cache/install/install.sh
/etc/init.d/dcache-core start
/etc/init.d/dcache-pool start
Conclusion
~~~~~~~~~~
We should now have a fully upgraded dCache. As with previous releases wait a
5-10 minutes before you send in any bug reports it may be initialising.
>
> On Mon, 16 Oct 2006 [log in to unmask] wrote:
>
> > We have the new stable version of D-cache available on the D-cache web
> > site,
> >
> > Installation instructions are here
> >
> > http://www.dcache.org/manuals/yaim-dcache-howto.shtml
> >
> > For a YAIM based site you should only need to change the site-info.def
> > to
> >
> > RESET_DCACHE_CONFIGURATION=yes
> >
> > While the other settings should be set as
> >
> > RESET_DCACHE_PNFS=no
> > RESET_DCACHE_RDBMS=no
> >
> > if you want to keep your data and I guess you do want to keep your data.
> >
> > With regard to the apt repository we do not yet have it in stable, I am
> > giving you all 24 hours notice to check your setups and then I shall
> > migrate D-cache 1.7.0-16 to stable.
> >
> > Non yaim sites should wait for a short time as I finish documenting the
> > upgrade procedure but its tested and working. I expect this RPM will be
> > released with instructions in the README at the same time as I release
> > D-cache 1.7.0-16 to stable in the apt repository.
> >
> > D-cache 1.7.0-16 is currently available to YAIM users in the testing
> > section of the apt repository.
> >
> > Regards
> >
> > Owen
> >
>
> --
> ========================================================================
> Dr Greig A Cowan http://www.ph.ed.ac.uk/~gcowan1
> School of Physics, University of Edinburgh, James Clerk Maxwell Building
>
> TIER-2 STORAGE SUPPORT PAGES: http://wiki.gridpp.ac.uk/wiki/Grid_Storage
> ========================================================================
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