ALINKA Linux Clustering Letter, September 26th. 2001 (fwd)
Eugene.Leitl at lrz.uni-muenchen.de
Thu Sep 27 05:32:11 PDT 2001
-- Eugen* Leitl <a href="http://www.lrz.de/~ui22204/">leitl</a>
ICBMTO: N48 04'14.8'' E11 36'41.2'' http://www.lrz.de/~ui22204
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---------- Forwarded message ----------
Date: Thu, 27 Sep 2001 14:25:04 +0200
From: Antoine Brenner <abrenner at alinka.com>
To: clustering at alinka.com
Subject: ALINKA Linux Clustering Letter, September 26th. 2001
Resent-Date: Thu, 27 Sep 2001 14:25:08 +0200 (CEST)
Resent-From: clustering at alinka.com
The ALINKA Linux Clustering Letter,
Wednesday, September the 26th. 2001
Dear readers, I am happy to send you this week's edition of
clustering at alinka.com
clustering at alinka.com is a free weekly e-mail newsletter on linux
clustering. It provides a summary of the weekly activity in
mailing-lists relative to linux clustering (such as beowulf,
linux virtual server or linux-ha) and general clustering news.
For more information about ALINKA, see: http://www.alinka.com
News from the High Performance world, by Dr Laurent Gatineau
(lgatineau at alinka.com)
Tips and tricks from the Beowulf mailing list
* Delcides Flávio de Sousa Jr. [m1] is wondering which kind of
configuration he needs to start its beowulf cluster. As Greg Lindahl
[m2] try to answer to its questions, it depends on applications.
* Shane Canon [m1] has problem to configure linpack, Greg Lindahl [m2]
and Patrick Geoffray [m3] explained how to set the problem size.
* Jalal Haddad [m1] is looking for cheap dual P4 motherboard, Joel
Jaeggli [m2] answered that actually the only available chipset is
the intel 860 which is expensive. Ron Chen [m3] gave two
links [1,2] where Dual P4 and Dual Athlon are compared, showing that
performances depends on the compiler and the code [m4]. About PCI
bus speed, Greg Lindahl [m5] posted a link  where some comparison
have been done.
News from MOSIX mailing list by Benoit des Ligneris
<bligneri at physique.usherb.ca>
* Jame Troup ask for support [m1] in order to use Mosix in the Linux
Terminal Server Project . An old debate about development of mosix
for the ``last'' linux kernel arise.
Only last versions of Mosix are developped and patches are not ported
to old version. As stated by Thomas Webb [m2] it's not good for a
production environment !
* Discussion lauched by John Strange about GFS + Mosix [m1]. One of the problem
was mexecd that did not work on recent Mosix kernels. Paul Mundt told [m2]
that he has almost all rewritten for recent mosix. Then Jacob Gorn Hansen
[m3] says that CODA/intermezzo will surely have better performance.
* Tim Chipman asked [m1] for a simple queue management for mosix cluster.
John Strange [m2] suggested Gnu Queue  or Sun Grid  and lots of other
posters gave advices for a "home made" solution but nothing concrete and
News from the High Availability world
DRBD devel by Guillaume GIMENEZ (ggimenez at alinka.com)
* Martin Bene posted a patch [m1] to solve some troubles. it applies
against drbd 0.61-pre2 and is useful for redhat users.
Linux-HA dev by Rached Ben Mustapha (rached at alinka.com)
* Alan Robertson proposed [m1] that dependencies on resources be
implemented in future versions of linux-ha software.
Linux-HA by Rached Ben Mustapha (rached at alinka.com)
* Jean-Yves Bouet asked [m1] what was the role of job of each thread
in heartbeat. Alan Robertson replied [m2] this:
master control process: read requests to send messages from a FIFO,
and sends them to the master status proces
Master status process, tracks status of nodes, initiates takeovers,
handles heartbeat protocol, etc.
Each medium declared in the ha.cf file has a read and a write process.
LVS by Rached Ben Mustapha (rached at alinka.com)
* malalon at poczta.onet.pl asked [m1] what was the problem with testing
a NAT-based service, with rr scheduling. Joseph Mack replied [m2]
that the recommended method to test lvs was with telnet.
* Dmitry Dan Brovkovich asked [m3] why trying to telnet to the VIP
resulted in an inactive connection, and the client not receiving
anything. Joseph Mack replied [m4] that the realserver probably
didn't have its root set properly to the client.
News on the Filesystems front
Coda by Ludovic Ishiomin (lishiomin at alinka.com)
* Jan Harkes posted a patch specific to Coda kernel code on Linux that makes
Coda client be able to use other filesystem than ext2 [1m].
* Phil Nelson gave information about Coda on Solaris 8 [2m].
* Jan Harkes posted comments about Coda and Intermezzo [3m].
Intermezzo by Ludovic Ishiomin (lishiomin at alinka.com)
* Shirish Phatak posted status about Reiserfs support with Intermezzo [1m].
JFS by Ludovic Ishiomin (lishiomin at alinka.com)
* Steve Best announced JFS 1.0.5 [1m].
* Dave Kleikamp posted a patch to the latest release of JFS [2m].
* Anthony Liu confirmed that this drop won't compile with 2.4.10 kernel because
of major VM changes [3m].
XFS by Ludovic Ishiomin (lishiomin at alinka.com)
* There was a long thread about mainstream kernel inclusion of XFS [1m].
and the followings
News on other cluster related topics
Linux Cluster by Bruno Muller (bmuller at alinka.com)
* Lars Marowsky-Bree announced the Linux Kongress 2001 Clustering
LVM by Bruno Muller (bmuller at alinka.com)
* AJ Lewis posted a patch to configure LVM 1.0.1-rc2 [m1].
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