[Beowulf] Configuration change monitoring

Walid walid.shaari at gmail.com
Thu Aug 30 12:36:47 PDT 2007


Hi Mark

I have no idea what ITIL means, but would probably prefer to keep
> it that way :)


actually it is not that bad, the section of ITIL "Information Technology
Infrastructure Library" that is related to this thread can be seen here
http://en.wikipedia.org/wiki/Configuration_Management_%28ITSM%29

a standard that forces use of specific and commercial packages
> is not a standard at all...


It does not, it  is how different vendors interpret/present it differently
to managers.Commercial vendors are known to have better PR than OSS
projects, one exception i have seen lately is Zenoss which is riding the
ITIL wave too :)

none of those require any node-local changes.  as I mentioned, nfs-root
> solves many of them, though it's common to use ldap/nis/AD.  it's uncommon
> to change the NFS mounts on a compute node, but also quite easy to change
> the fstab and then something like "pdsh -a mount -a"
>

I do like nfs-root, and I am advocating for it some problem with nfs-root
are the following
1- dependency:if the nfs server goes down, all nodes will be affected by
this at least waiting for it until it comes back, probably if i use the same
netapp filer that host the users data, and applications, then i can argue if
the filer has a problem or has to go down, the system follows
2- What if the file that was changed on the server was wrong, all cluster
nodes, if not all clusters will see the same mistake

I would be interested  on other ways  of distributing configurations files
safely, and in a timely manner.

regards

Walid
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