RE: Tips about setting-up intermezzo...

Hi Chen,

Thanks for your answer.

I've followed your advice, and I've used the Intermezzo & Intersync
Howto at the "Docs" section at www.inter-mezzo.org.
The reason for my previous confusion is that this HOWTO is dated March
2002, while the article at linuxplanet.com is dated October 2002.
They both differ considerably in the way to proceed, specially at the
time of creation of the filesystems (the linuxplanet.article doesn't
mention mkizofs at all) and the management of intermezzo partitions at
client and server side.

Anyway, I've followed the HOWTO and your advice. I've backed-up  all the
info from the partition I already have data in, as I want all this files
replicated to the clients (and viceversa, any modifications from the
clients sent back to the server, and then, to the rest of clients...).

Before running mkizofs at the server side, I've decided to play safe and
start at the client.

I've run the following commands:
# mkizofs -t ext3 -r rootfs /dev/hda2
(the command has returned succesfully)
then:
# mount -t intermezzo /dev/hda2 /export

After this (presumably) successful execution, I've checked syslog
messages, and this is what I've found:

--BEGIN--
Nov  5 18:07:04 tgn1 kernel: InterMezzo Kernel/Intersync communications
$Revision: 1.41 $ info@xxxxxxxxxxxxx
Nov  5 18:07:12 tgn1 kernel: (filter_get_filter_fs,l. 234): ops at
c891ab7c
Nov  5 18:07:12 tgn1 kernel: kjournald starting.  Commit interval 5
seconds
Nov  5 18:07:12 tgn1 kernel: EXT3 FS 2.4-0.9.19, 19 August 2002 on
ide0(3,2), internal journal
Nov  5 18:07:12 tgn1 kernel: EXT3-fs: mounted filesystem with ordered
data mode.
Nov  5 18:07:12 tgn1 kernel: (journal.c:izo_log_open,l. 1093 3334):
InterMezzo WARNING: no file data logging!
Nov  5 18:07:12 tgn1 last message repeated 2 times
Nov  5 18:07:12 tgn1 kernel: (filter_setup_journal_ops,l. 166): ops at
c891ab7c
Nov  5 18:07:12 tgn1 kernel: (filter_setup_super_ops,l. 301): setting
filter_read_inode, cache_ops c891ab7c, cache c891ab7c, ri at c88ef840
Nov  5 18:07:12 tgn1 kernel: (filter_setup_dir_ops,l. 327): filter at
c891ab7c, cache iops c02ae140, iops c891abd0
Nov  5 18:07:37 tgn1 kernel: (methods.c:filter_setup_file_ops,l. 410
3340): *** cache file ops at c02ae020
--END--

Lots of ops! As soon as I've seen this, I've decided to abort the
process of migration to Intermezzo, as I think this messages are not a
good thing, I'm wrong?? Is this not too verbose if things are all
right??

FYI, I'm using Trustix Secure Linux 2.0 (TSL 2.0), with kernel 2.4.21.
The intermezzo kernel comes with the kernel by default, so I've used
that one instead of compiling the one coming with the intersync package.

What's happening here?? Should I ignore those messages?? What should I
do now??


Any advise would be greatly appreciated,


--
Josep Maria Torné Fernàndez
jm.torne@xxxxxxxxxxxxxxx
Responsable Departament d'Informàtica i Comunicacions
TSI (Tarragona Sistemes Industrials, SL) 
http://www.tgnsi.com/infor
Pol. Francolí, parcel.la 17, local 4
43006 - TARRAGONA (SPAIN)
Phone: +34-977-541386
Fax: +34-977-546239 

-----Mensaje original-----
De: Yang, Chen [mailto:chyang@xxxxxxxxxxxxx] 
Enviado el: miércoles, 05 de noviembre de 2003 17:08
Para: Josep M. Torné Fernàndez; intermezzo-discuss@xxxxxxxxxxxxxxxxxxxxx
Asunto: Re: Tips about setting-up intermezzo...

Hi, Josep:
   There is a updated HOWTO link on InterMezzo site's doc section, you
can
reference that link for more information.
   To answer your questions:
 - Is there any way to setup intermezzo without backing-up the
partition,
re-formatting, mounting the partition as fs type "intermezzo" and
dumping
the backup again?? If so, how should it be done??
    You can try use vintermezzo or just try to use loop fs as the base
of
intermezzo fs, this will ease your use.  If you want the data on the
partition replicated, then you will have no other choice but to back up
it
and copy back after using mkizofs created the partition and starting the
intersync server.
- My other question is about the transport software. Docs I've seen talk
about using ghttpd, but it seems newer releases support apache. Is that
right??
    At the very beginning, only ghttpd is support. At present, the main
httpd server is apache, so it supports apache well.

- Finally, I haven't found much info about config files. There is one
sampleconfigfile coming with intersyng-0.9.5-3, but where should it be
installed??
    What does the config refer to? If you refer to the httpd related
config
file, intersync will create the config at the very beginning. If your
httpd
is apache 2.0.x ,  then it will be no problem at all. Intersync will
start
up happily. You can also modify the config file as you wish, it is under
/var/intermezzo-X/intersync-httpd.conf . The fs related config file will
be
located under the mounted position's .intermezzo directory, there will
be
one file named config, you can cat the content of the file.
--
     Yang, Chen
----- Original Message ----- 
From: "Josep M. Torné Fernàndez" <jm.torne@xxxxxxxxxxxxxxx>
To: <intermezzo-discuss@xxxxxxxxxxxxxxxxxxxxx>
Sent: Tuesday, November 04, 2003 8:08 PM
Subject: Tips about setting-up intermezzo...


Hi,

I'm just trying out intermezzo as a cluster fs for my HA servers.
The problem for me is that docs are kind of outdated (the ones found at
http://www.inter-mezzo.org) and I guess some mods have been done since
these documents where published.

So far I've compiled and installed intersync-0.9.5-3 with no problems.
I'll be using the intermezzo kernel modules that are already present in
my Trustix 2.0 Linux distro (kernel 2.4.21).

So far, I'm following Linux Planet's article (the one mentioned on
"News" section at the web site) as it seems the most up-to-date piece of
docs I've seen (09/10/2002).

My next step is setting up the server. I already have a separate
partition for Intermezzo, but it's already holding data.

Is there any way to setup intermezzo without backing-up the partition,
re-formatting, mounting the partition as fs type "intermezzo" and
dumping the backup again?? If so, how should it be done??

My other question is about the transport software. Docs I've seen talk
about using ghttpd, but it seems newer releases support apache. Is that
right??

Finally, I haven't found much info about config files. There is one
sampleconfigfile coming with intersyng-0.9.5-3, but where should it be
installed??


Thanks,


--
Josep Maria Torné Fernàndez
jm.torne@xxxxxxxxxxxxxxx
TSI (Tarragona Sistemes Industrials, SL)
http://www.tgnsi.com/infor
43006 - TARRAGONA (SPAIN)




-------------------------------------------------------
This SF.net email is sponsored by: SF.net Giveback Program.
Does SourceForge.net help you be more productive?  Does it
help you create better code?   SHARE THE LOVE, and help us help
YOU!  Click Here: http://sourceforge.net/donate/
_______________________________________________
intermezzo-discuss mailing list
intermezzo-discuss@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/intermezzo-discuss




-------------------------------------------------------
This SF.net email is sponsored by: SF.net Giveback Program.
Does SourceForge.net help you be more productive?  Does it
help you create better code?   SHARE THE LOVE, and help us help
YOU!  Click Here: http://sourceforge.net/donate/