RE: [SSI-devel] RELEASE: OpenSSI 0.9.96 for Red Hat 9

[Walker, B. J <bru...@hp...>]

Excellent question.  The one remaining piece I would propose for 1.0 is
a better handling of filesystems, filesystem failover and swap (which
could be lumped as the fstab problem).  Dave Zafman has a plan to
leverage what Aneesh has done, to simplify the specification of root
failover and in general handle fstab describing all the filesystems and
swap on all nodes.  I think he will share that today and when we have
most/all/some of it implemented we will declare 1.0.

Are there other features that others believe are needed to be a 1.0?

Besides a simpler installation process and some options on ps and even
more robust X handling, what other features are needed beyond 1.0  (2.6
port of course; better Debian/Mandrake/Suse; current OGFS integration;
current Lustre integration; EVMS integration; DRBD and CFS filesystem
failover; CFS performance improvements; checkpoint/restart; scaling to
100s of nodes)?

Bruce



> -----Original Message-----
> From: Greg Freemyer [mailto:freemyer-ml@NorcrossGroup.com]=20
> Sent: Wednesday, November 12, 2003 4:27 PM
> To: OpenSSI developers
> Subject: Re: [SSI-devel] RELEASE: OpenSSI 0.9.96 for Red Hat 9
>=20
>=20
> What still needs to be done before the "1.0" release?
>=20
> On Wed, 2003-11-12 at 18:25, Brian J. Watson wrote:
> > OpenSSI 0.9.96 (the second RH9-based release) has some=20
> enhancements, bug
> > fixes and new documentation. It can be downloaded from OpenSSI.org.
> >=20
> > A six-page introduction document is included. It provides a good
> > overview of the features of openSSI, and is divided up into=20
> a variety of=20
> > topics, such as filesystems, the cluster process model, and system=20
> > management.
> >=20
> > There is now much better support for running X Windows on=20
> each node of=20
> > the cluster. This includes bug fixes to clusterwide Unix=20
> domain sockets,=20
> > and some changes suggested by John Hughes to allow X to run as a=20
> > non-root user.
> >=20
> > A new localview command allows programs like ps or top to=20
> limit their=20
> > scope to just those processes running on the local machine.
> >=20
> > Support for machines with more than 1 GB of RAM is=20
> included. Previously,=20
> > processes could not migrate on these machines.
> >=20
> > A faster cluster shutdown has been introduced.
> >=20
> > Nodes that are kicked out of the cluster are now=20
> automatically rebooted.
> >=20
> > The ksync command has been renamed to ssi-ksync to avoid=20
> conflict with a
> > KDE command of the same name.
> >=20
> > There's a new --modulefile argument to mkinitrd, for specifying=20
> > alternatives to /etc/modules.conf.
> >=20
> > Debugging support for process load-levelling has been added. The=20
> > interface is /proc/cluster/loadlog.
> >=20
> > Support for the cciss driver has been added to devfsd. The=20
> ida symlinks
> > have been fixed.
> >=20
> > Various process-related bugs have been fixed. Process loadlevelling=20
> > works correctly for large program names. Processes with a=20
> large number=20
> > of file descriptors can migrate without panicing a node.=20
> When a process=20
> > is stopped with Ctrl-Z, its parent is woken up. Races=20
> between delivering=20
> > signals and reaping children have been resolved. All processes in a=20
> > thread group are signalled, like they should be. A deadlock in=20
> > release_task() has been fixed. Defunct clone processes are properly=20
> > cleaned up.
> >=20
> > Other bugs fixes include IPC shared memory locking, potential memory
> > corruption when accessing remote objects, and various=20
> high-stress bugs.
> >=20
> > Again, OpenSSI 0.9.96 can be downloaded from OpenSSI.org.
> >=20
> > Enjoy,
> >=20
> > Brian
> >=20
> >=20
> >=20
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>=20
>=20
>=20
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>=20