Mailing List Archive

Hullo Saqib...

I asked the same question just earlier today... Haven't had much of a
response... But, would love to hear any input anyone has out there ;)


Personally, I am doing this through Red Hat, with mod_backhand (A module
for apache specifically for clusters, if you haven't heard of it lemme
know I'll dig up the URL) I was thinking about using MOSIX as the
cluster base, how about you?

Daniel


-----Original Message-----
From: Saqib.N.Ali@seagate.com [mailto:Saqib.N.Ali@seagate.com]
Sent: Saturday, February 09, 2002 5:24 PM
To: users@httpd.apache.org
Subject: Clustered Apache server

Hi,

I am working on to setup a Clustered Apache based websevers. I looking
into
Turbo Linux Clusters for this. Anyone has experience with with Turbo
Linux
Clusters? Is it good? Or should I be lookin into something else? Any
good
websites to setup clustered apache based web servers?

Thanks
Saqib Ali
=======================
Organic Document: Living and evolving document
For more information on Organic Documents visit http://www.stonebeat.org


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Hi Daniel,
I have researched into mod_backhand and TurboLinux Clusters. However they
do not seems to solve my problems. Here is a little more info on what I am
trying to setup.

I am trying to setup a Clustered apache based WebDAV servers for file
sharing. I m planning to use a SAN box for storage. WebDAV is Web based
Document Authoring and Version. DAV provides a mechanism for locking and
unlockig files. This lock Database is stored on the apache server. DAV is
highly read/write intensive.

mod_backhand and TurboLinux do NOT provide built-in locking mechanism. So
if more than one cluster node is writing to to the same file, data could
become corrupted.

Any ideas?

Thanks
Saqib Ali
=======================
Organic Document: Living and evolving document
For more information on Organic Documents visit
http://gcs.seagate.com/scripts/wiki/



"Daniel G"
<tech@ct5.com To: <users@httpd.apache.org>
> cc:
Subject: RE: Clustered Apache server
02/10/2002
02:13 AM
Please
respond to
users






Hullo Saqib...

I asked the same question just earlier today... Haven't had much of a
response... But, would love to hear any input anyone has out there ;)


Personally, I am doing this through Red Hat, with mod_backhand (A module
for apache specifically for clusters, if you haven't heard of it lemme
know I'll dig up the URL) I was thinking about using MOSIX as the
cluster base, how about you?

Daniel


-----Original Message-----
From: Saqib.N.Ali@seagate.com [mailto:Saqib.N.Ali@seagate.com]
Sent: Saturday, February 09, 2002 5:24 PM
To: users@httpd.apache.org
Subject: Clustered Apache server

Hi,

I am working on to setup a Clustered Apache based websevers. I looking
into
Turbo Linux Clusters for this. Anyone has experience with with Turbo
Linux
Clusters? Is it good? Or should I be lookin into something else? Any
good
websites to setup clustered apache based web servers?

Thanks
Saqib Ali
=======================
Organic Document: Living and evolving document
For more information on Organic Documents visit http://www.stonebeat.org


---------------------------------------------------------------------
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On Sun, 10 Feb 2002 Saqib.N.Ali@seagate.com wrote:

>
> Hi Daniel,
> I have researched into mod_backhand and TurboLinux Clusters. However they
> do not seems to solve my problems. Here is a little more info on what I am
> trying to setup.
>
> I am trying to setup a Clustered apache based WebDAV servers for file
> sharing. I m planning to use a SAN box for storage. WebDAV is Web based
> Document Authoring and Version. DAV provides a mechanism for locking and
> unlockig files. This lock Database is stored on the apache server. DAV is
> highly read/write intensive.
>
> mod_backhand and TurboLinux do NOT provide built-in locking mechanism. So
> if more than one cluster node is writing to to the same file, data could
> become corrupted.
>

You must be sharing the content for the whole thing to work, ie NFS or
something (not knowing what SAN is I'm assuming that's what it is).
Therefore, could you not share the database also? ie all Apaches in the
cluster pointing to the same locking database. Thus when one marks a file
as being locked the others would see this also.

Alex..


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Hi Alex,
I have to try this out. I think the Lock database that mod_dav creates, can
not be accessed by multiple instances of apache. But I am not sure. I will
have to do some intensive testing to figure this out.

Thanks for the suggestion.

Saqib Ali
=======================
Organic Document: Living and evolving document
For more information on Organic Documents visit
http://gcs.seagate.com/scripts/wiki/



Alex Dyas
<adyas@twoway To: <users@httpd.apache.org>
tv.co.uk> cc:
Subject: RE: Clustered Apache server
02/11/2002
02:33 AM
Please
respond to
users






On Sun, 10 Feb 2002 Saqib.N.Ali@seagate.com wrote:

>
> Hi Daniel,
> I have researched into mod_backhand and TurboLinux Clusters. However they
> do not seems to solve my problems. Here is a little more info on what I
am
> trying to setup.
>
> I am trying to setup a Clustered apache based WebDAV servers for file
> sharing. I m planning to use a SAN box for storage. WebDAV is Web based
> Document Authoring and Version. DAV provides a mechanism for locking and
> unlockig files. This lock Database is stored on the apache server. DAV is
> highly read/write intensive.
>
> mod_backhand and TurboLinux do NOT provide built-in locking mechanism. So
> if more than one cluster node is writing to to the same file, data could
> become corrupted.
>

You must be sharing the content for the whole thing to work, ie NFS or
something (not knowing what SAN is I'm assuming that's what it is).
Therefore, could you not share the database also? ie all Apaches in the
cluster pointing to the same locking database. Thus when one marks a file
as being locked the others would see this also.

Alex..


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Well, I have no experience using mod_dav... My setup is quite a bit
different. I have a large amount of low to high traffic websites that I need
to spread across several machines. Hence the cluster... I'll be using
mod_backhand mostly...

What type of cluster are you using? Mosix or Beowulf, is the another?
Anything you guys can tell me about potential pitfalls with the different
cluster types would be most helpful. I am still researching all this, and
want to create a working model before we start ordering hardware....

Thanks,
Dan




----- Original Message -----
From: <Saqib.N.Ali@seagate.com>
To: <users@httpd.apache.org>
Sent: Monday, February 11, 2002 11:31 AM
Subject: RE: Clustered Apache server


>
> Hi Alex,
> I have to try this out. I think the Lock database that mod_dav creates,
can
> not be accessed by multiple instances of apache. But I am not sure. I will
> have to do some intensive testing to figure this out.
>
> Thanks for the suggestion.
>
> Saqib Ali
> =======================
> Organic Document: Living and evolving document
> For more information on Organic Documents visit
> http://gcs.seagate.com/scripts/wiki/
>
>
>
> Alex Dyas
> <adyas@twoway To: <users@httpd.apache.org>
> tv.co.uk> cc:
> Subject: RE: Clustered Apache
server
> 02/11/2002
> 02:33 AM
> Please
> respond to
> users
>
>
>
>
>
>
> On Sun, 10 Feb 2002 Saqib.N.Ali@seagate.com wrote:
>
> >
> > Hi Daniel,
> > I have researched into mod_backhand and TurboLinux Clusters. However
they
> > do not seems to solve my problems. Here is a little more info on what I
> am
> > trying to setup.
> >
> > I am trying to setup a Clustered apache based WebDAV servers for file
> > sharing. I m planning to use a SAN box for storage. WebDAV is Web based
> > Document Authoring and Version. DAV provides a mechanism for locking and
> > unlockig files. This lock Database is stored on the apache server. DAV
is
> > highly read/write intensive.
> >
> > mod_backhand and TurboLinux do NOT provide built-in locking mechanism.
So
> > if more than one cluster node is writing to to the same file, data could
> > become corrupted.
> >
>
> You must be sharing the content for the whole thing to work, ie NFS or
> something (not knowing what SAN is I'm assuming that's what it is).
> Therefore, could you not share the database also? ie all Apaches in the
> cluster pointing to the same locking database. Thus when one marks a file
> as being locked the others would see this also.
>
> Alex..
>
>
> ---------------------------------------------------------------------
> The official User-To-User support forum of the Apache HTTP Server Project.
> See <URL:http://httpd.apache.org/userslist.html> for more info.
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> For additional commands, e-mail: users-help@httpd.apache.org
>
>
>
>
>
> ---------------------------------------------------------------------
> The official User-To-User support forum of the Apache HTTP Server Project.
> See <URL:http://httpd.apache.org/userslist.html> for more info.
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> For additional commands, e-mail: users-help@httpd.apache.org
>
>


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If you are not locked into a particular platform, have you considered OpenVMS clusters running Apache? It's administered the same as Apache on any other platform but OpenVMS provides built-in clustering capabilities (security, lock manager, file system, etc.). Apache on OpenVMS is supported by Compaq Computer Corporation. If you're interested in more information, take a look at http://www.openvms.compaq.com/openvms/products/ips/apache/csws.html or send me e-mail.

Rick Barry

Compaq Computer Corporation Compaq Secure Web Server Project Team
110 Spit Brook Road OpenVMS System Software Group
Nashua, NH 03062 Business Critical Server Group
(603) 884-0634

-----Original Message-----
From: Saqib.N.Ali@seagate.com [mailto:Saqib.N.Ali@seagate.com]
Sent: Sunday, February 10, 2002 6:28 PM
To: users@httpd.apache.org
Subject: RE: Clustered Apache server



Hi Daniel,
I have researched into mod_backhand and TurboLinux Clusters. However they
do not seems to solve my problems. Here is a little more info on what I am
trying to setup.

I am trying to setup a Clustered apache based WebDAV servers for file
sharing. I m planning to use a SAN box for storage. WebDAV is Web based
Document Authoring and Version. DAV provides a mechanism for locking and
unlockig files. This lock Database is stored on the apache server. DAV is
highly read/write intensive.

mod_backhand and TurboLinux do NOT provide built-in locking mechanism. So
if more than one cluster node is writing to to the same file, data could
become corrupted.

Any ideas?

Thanks
Saqib Ali
=======================
Organic Document: Living and evolving document
For more information on Organic Documents visit
http://gcs.seagate.com/scripts/wiki/



"Daniel G"
<tech@ct5.com To: <users@httpd.apache.org>
> cc:
Subject: RE: Clustered Apache server
02/10/2002
02:13 AM
Please
respond to
users






Hullo Saqib...

I asked the same question just earlier today... Haven't had much of a
response... But, would love to hear any input anyone has out there ;)


Personally, I am doing this through Red Hat, with mod_backhand (A module
for apache specifically for clusters, if you haven't heard of it lemme
know I'll dig up the URL) I was thinking about using MOSIX as the
cluster base, how about you?

Daniel


-----Original Message-----
From: Saqib.N.Ali@seagate.com [mailto:Saqib.N.Ali@seagate.com]
Sent: Saturday, February 09, 2002 5:24 PM
To: users@httpd.apache.org
Subject: Clustered Apache server

Hi,

I am working on to setup a Clustered Apache based websevers. I looking
into
Turbo Linux Clusters for this. Anyone has experience with with Turbo
Linux
Clusters? Is it good? Or should I be lookin into something else? Any
good
websites to setup clustered apache based web servers?

Thanks
Saqib Ali
=======================
Organic Document: Living and evolving document
For more information on Organic Documents visit http://www.stonebeat.org


---------------------------------------------------------------------
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Project.
See <URL:http://httpd.apache.org/userslist.html> for more info.
To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
For additional commands, e-mail: users-help@httpd.apache.org




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I was pretty much locked down to Solaris. But this OpenVMS solutions look
pretty nice. I will research more into it. Does this apache comes with
pre-compile mod_ldap and mod_dav?
Thanks

Saqib Ali
=======================
Organic Document: Living and evolving document
For more information on Organic Documents visit
http://gcs.seagate.com/scripts/wiki/



"Barry, Richard"
<Richard.Barry@c To: <users@httpd.apache.org>
ompaq.com> cc:
Subject: RE: Clustered Apache server
02/11/2002 11:36
AM
Please respond
to users






If you are not locked into a particular platform, have you considered
OpenVMS clusters running Apache? It's administered the same as Apache on
any other platform but OpenVMS provides built-in clustering capabilities
(security, lock manager, file system, etc.). Apache on OpenVMS is supported
by Compaq Computer Corporation. If you're interested in more information,
take a look at
http://www.openvms.compaq.com/openvms/products/ips/apache/csws.html or send
me e-mail.

Rick Barry

Compaq Computer Corporation Compaq Secure Web Server Project Team
110 Spit Brook Road OpenVMS System Software Group
Nashua, NH 03062 Business Critical Server Group
(603) 884-0634

-----Original Message-----
From: Saqib.N.Ali@seagate.com [mailto:Saqib.N.Ali@seagate.com]
Sent: Sunday, February 10, 2002 6:28 PM
To: users@httpd.apache.org
Subject: RE: Clustered Apache server



Hi Daniel,
I have researched into mod_backhand and TurboLinux Clusters. However they
do not seems to solve my problems. Here is a little more info on what I am
trying to setup.

I am trying to setup a Clustered apache based WebDAV servers for file
sharing. I m planning to use a SAN box for storage. WebDAV is Web based
Document Authoring and Version. DAV provides a mechanism for locking and
unlockig files. This lock Database is stored on the apache server. DAV is
highly read/write intensive.

mod_backhand and TurboLinux do NOT provide built-in locking mechanism. So
if more than one cluster node is writing to to the same file, data could
become corrupted.

Any ideas?

Thanks
Saqib Ali
=======================
Organic Document: Living and evolving document
For more information on Organic Documents visit
http://gcs.seagate.com/scripts/wiki/



"Daniel G"
<tech@ct5.com To: <users@httpd.apache.org>
> cc:
Subject: RE: Clustered Apache
server
02/10/2002
02:13 AM
Please
respond to
users






Hullo Saqib...

I asked the same question just earlier today... Haven't had much of a
response... But, would love to hear any input anyone has out there ;)


Personally, I am doing this through Red Hat, with mod_backhand (A module
for apache specifically for clusters, if you haven't heard of it lemme
know I'll dig up the URL) I was thinking about using MOSIX as the
cluster base, how about you?

Daniel


-----Original Message-----
From: Saqib.N.Ali@seagate.com [mailto:Saqib.N.Ali@seagate.com]
Sent: Saturday, February 09, 2002 5:24 PM
To: users@httpd.apache.org
Subject: Clustered Apache server

Hi,

I am working on to setup a Clustered Apache based websevers. I looking
into
Turbo Linux Clusters for this. Anyone has experience with with Turbo
Linux
Clusters? Is it good? Or should I be lookin into something else? Any
good
websites to setup clustered apache based web servers?

Thanks
Saqib Ali
=======================
Organic Document: Living and evolving document
For more information on Organic Documents visit http://www.stonebeat.org


---------------------------------------------------------------------
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Project.
See <URL:http://httpd.apache.org/userslist.html> for more info.
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For additional commands, e-mail: users-help@httpd.apache.org




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The latest version of the server (based on Apache 1.3.20) does not currently contain built-in modules for mod_ldap and mod_dav.

We're putting the finishing touches on a mod_dav loadable module that will work with the current server.

mod_ldap shouldn't pose a problem either (an LDAP library ships with OpenVMS). We haven't tried building it, though, so I can't make any claims to how easy it'll be to build on OpenVMS. If I have a moment, I'll give it go.

Rick Barry

Compaq Computer Corporation Compaq Secure Web Server Project Team
110 Spit Brook Road OpenVMS System Software Group
Nashua, NH 03062 Business Critical Server Group
(603) 884-0634

-----Original Message-----
From: Saqib.N.Ali@seagate.com [mailto:Saqib.N.Ali@seagate.com]
Sent: Monday, February 11, 2002 5:29 PM
To: users@httpd.apache.org
Subject: RE: Clustered Apache server



I was pretty much locked down to Solaris. But this OpenVMS solutions look
pretty nice. I will research more into it. Does this apache comes with
pre-compile mod_ldap and mod_dav?
Thanks

Saqib Ali
=======================
Organic Document: Living and evolving document
For more information on Organic Documents visit
http://gcs.seagate.com/scripts/wiki/

---------------------------------------------------------------------
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