Re: [Zope] Re: Zeo and conflict resolution (was suddenly confused)

2008-01-31 Thread Dieter Maurer
Ricardo Newbery wrote at 2008-1-30 13:14 -0800: ... I meant easier for the end user, not the developer. It's kind of complicated right now to explain how to set up a ZEO configuration to work with your third-party product. Makes it a bit of hurdle to distribute such a thing for general

Re: [Zope] Re: Zeo and conflict resolution (was suddenly confused)

2008-01-31 Thread Dieter Maurer
Ricardo Newbery wrote at 2008-1-30 12:24 -0800: ... Has anyone given thought to maybe providing a more general class with conflict resolution in the core distribution? There can be no *general* class with conflict resolution. Conflicts usually are fatal. Precise knowledge about the intended

[Zope] Re: Zeo and conflict resolution (was suddenly confused)

2008-01-30 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ricardo Newbery wrote: Another related question. With respect to conflict resolution, is is safe to assume that products (with _p_resolveConflict methods) in the main Zope products directory are already available to the ZEO server without

Re: [Zope] Re: Zeo and conflict resolution (was suddenly confused)

2008-01-30 Thread Ricardo Newbery
On Jan 30, 2008, at 9:32 AM, Tres Seaver wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ricardo Newbery wrote: Another related question. With respect to conflict resolution, is is safe to assume that products (with _p_resolveConflict methods) in the main Zope products directory are

Re: [Zope] Re: Zeo and conflict resolution (was suddenly confused)

2008-01-30 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ricardo Newbery wrote: Okay, then assuming you've installed ZEO from Zope software, if your third-party product includes conflict resolution by instantiating a class defined in the Zope product directory, then is it also safe to assume that

Re: [Zope] Re: Zeo and conflict resolution (was suddenly confused)

2008-01-30 Thread Ricardo Newbery
On Jan 30, 2008, at 11:17 AM, Tres Seaver wrote: Ricardo Newbery wrote: Okay, then assuming you've installed ZEO from Zope software, if your third-party product includes conflict resolution by instantiating a class defined in the Zope product directory, then is it also safe to assume that

[Zope] Re: Zeo and conflict resolution (was suddenly confused)

2008-01-30 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ricardo Newbery wrote: Has anyone given thought to maybe providing a more general class with conflict resolution in the core distribution? The Length class works for simple counters and I guess it can also be used for just simple

Re: [Zope] Re: Zeo and conflict resolution (was suddenly confused)

2008-01-30 Thread Ricardo Newbery
On Jan 30, 2008, at 12:59 PM, Tres Seaver wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ricardo Newbery wrote: Has anyone given thought to maybe providing a more general class with conflict resolution in the core distribution? The Length class works for simple counters and I guess

Re: [Zope] Re: Zeo and conflict resolution (was suddenly confused)

2008-01-30 Thread Chris McDonough
Ricardo Newbery wrote: On Jan 30, 2008, at 12:59 PM, Tres Seaver wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ricardo Newbery wrote: Has anyone given thought to maybe providing a more general class with conflict resolution in the core distribution? The Length class works for

Re: [Zope] Re: Zeo and conflict resolution (was suddenly confused)

2008-01-30 Thread Ricardo Newbery
On Jan 30, 2008, at 1:39 PM, Chris McDonough wrote: Ricardo Newbery wrote: On Jan 30, 2008, at 12:59 PM, Tres Seaver wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ricardo Newbery wrote: Has anyone given thought to maybe providing a more general class with conflict resolution in

[Zope] Re: ZEO with Multiple Storages

2006-09-15 Thread Jens Vagelpohl
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 14 Sep 2006, at 20:49, Brian Brinegar wrote: One ZEO server can deal with multiple storages just fine. Transactions involving multiple storages commit just fine. Caveat: You buy nothing by having a single ZEO process serve several ZODBs when

[Zope] Re: ZEO with Multiple Storages

2006-09-14 Thread Brian Brinegar
One ZEO server can deal with multiple storages just fine. Transactions involving multiple storages commit just fine. Caveat: You buy nothing by having a single ZEO process serve several ZODBs when you're trying to decrease commit times. You should run a ZEO process per ZODB you're serving

[Zope] Re: ZEO Problem Clients Waiting

2006-08-07 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Gerhard Schmidt wrote: HI, we have quite a Problem with out Zope/Zeo system. We run at the moment Zope cluster with 10 application servers and a zeo server with Filestorage. Our Data.fs is 3.5 Gig at the moment (after Pack). I runs most of

Re: [Zope] Re: Zeo as a Zeo Client

2006-05-04 Thread Chris Withers
Gerhard Schmidt wrote: If I had the Time I whould do it. My ToDo List goes around up to the moon an back twice. About the funding I have to talk to my superior when he is back from his vacation. Bear in mind that you will need serious amounts of cash to get this implemented. This is a

Re: [Zope] Re: Zeo as a Zeo Client

2006-05-03 Thread Gerhard Schmidt
On Tue, May 02, 2006 at 10:23:40AM -0400, Tres Seaver wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Gerhard Schmidt wrote: I try to reduce the load of the line between the backup Computing Center and the Mainsite by having a zeo server as Proxy between the zope server at the

Re: [Zope] Re: Zeo as a Zeo Client

2006-05-03 Thread Andreas Jung
--On 3. Mai 2006 08:11:44 +0200 Gerhard Schmidt [EMAIL PROTECTED] wrote: The question is why is it impossible to run a zeo as a zeoclient. Because this usecase was/is never supported. I can setup a zeo with a zeoclient storage i See teh invalidations coming from the backend zeo. So this

Re: [Zope] Re: Zeo as a Zeo Client

2006-05-03 Thread Gerhard Schmidt
On Wed, May 03, 2006 at 08:22:22AM +0200, Andreas Jung wrote: --On 3. Mai 2006 08:11:44 +0200 Gerhard Schmidt [EMAIL PROTECTED] wrote: The question is why is it impossible to run a zeo as a zeoclient. Because this usecase was/is never supported. I can setup a zeo with a zeoclient

Re: [Zope] Re: Zeo as a Zeo Client

2006-05-03 Thread Andreas Jung
--On 3. Mai 2006 08:35:48 +0200 Gerhard Schmidt [EMAIL PROTECTED] wrote: It was lost in the 2.6 version of the Zope book i have scanned the Page with the Picture. See http://etustar.ze.tum.de/zopebook.jpg Scary...no idea why it is in the printed edition...at least the 2.6 and 2.7

Re: [Zope] Re: Zeo as a Zeo Client

2006-05-03 Thread Gerhard Schmidt
On Wed, May 03, 2006 at 08:56:28AM +0200, Andreas Jung wrote: --On 3. Mai 2006 08:35:48 +0200 Gerhard Schmidt [EMAIL PROTECTED] wrote: It was lost in the 2.6 version of the Zope book i have scanned the Page with the Picture. See http://etustar.ze.tum.de/zopebook.jpg Scary...no

Re: [Zope] Re: Zeo as a Zeo Client

2006-05-03 Thread Andreas Jung
--On 3. Mai 2006 09:15:45 +0200 Gerhard Schmidt [EMAIL PROTECTED] wrote: Every major innovation was extremely uncommon bevor it was implemented. So thats not a reason not to do it. Is there a way to get this to work. I Think it whould be a very nice feature. Because it whould increase the

Re: [Zope] Re: Zeo as a Zeo Client

2006-05-03 Thread Gerhard Schmidt
On Wed, May 03, 2006 at 09:19:31AM +0200, Andreas Jung wrote: --On 3. Mai 2006 09:15:45 +0200 Gerhard Schmidt [EMAIL PROTECTED] wrote: Every major innovation was extremely uncommon bevor it was implemented. So thats not a reason not to do it. Is there a way to get this to work. I

[Zope] Re: Zeo as a Zeo Client

2006-05-02 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Gerhard Schmidt wrote: I try to reduce the load of the line between the backup Computing Center and the Mainsite by having a zeo server as Proxy between the zope server at the backup site an the ZEO at the main site. Secound part is that the

Re: [Zope] Re: Zeo as a Zeo Client

2006-05-02 Thread Paul Winkler
On Tue, May 02, 2006 at 10:23:40AM -0400, Tres Seaver wrote: I would look for a replication strategy to create your intermediate storage server: the setup you are trying is not supported by the current ZEO setup. Such strategies include: - Zope Corp's Zope Replication Services product,

Re: [Zope] Re: Zeo as a Zeo Client

2006-05-02 Thread David Pratt
Tres Seaver wrote: - Another possibility would be to use 'repozo' to create deltas on the primary, and then propagate them to the secondary via rsync, then apply them via 'repozo'. Hi Tres. I have also been investigating strategies but had not thought of this possibility. I am not

Re: [Zope] Re: Zeo as a Zeo Client

2006-05-02 Thread Andreas Jung
--On 2. Mai 2006 12:38:28 -0300 David Pratt [EMAIL PROTECTED] wrote: Tres Seaver wrote: - Another possibility would be to use 'repozo' to create deltas on the primary, and then propagate them to the secondary via rsync, then apply them via 'repozo'. Hi Tres. I have also been

Re: [Zope] Re: Zeo as a Zeo Client

2006-05-02 Thread David Pratt
Andreas Jung wrote: repozo does not help you syncing multiple ZEO server..it just performs an incremental backup of an existing Data.fs file. And I don't know of any solution have multiple master ZEO servers. There can be only one. -aj For sure. I guess the best one could have would be

Re: [Zope] Re: Zeo as a Zeo Client

2006-05-02 Thread Jonathan
:31 PM Subject: Re: [Zope] Re: Zeo as a Zeo Client Andreas Jung wrote: repozo does not help you syncing multiple ZEO server..it just performs an incremental backup of an existing Data.fs file. And I don't know of any solution have multiple master ZEO servers. There can be only one. -aj

Re: [Zope] Re: Zeo as a Zeo Client

2006-05-02 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 David Pratt wrote: Andreas Jung wrote: repozo does not help you syncing multiple ZEO server..it just performs an incremental backup of an existing Data.fs file. And I don't know of any solution have multiple master ZEO servers. There can be

Re: [Zope] Re: Zeo as a Zeo Client

2006-05-02 Thread David Pratt
Tres Seaver wrote: ZRS secondaries go into recovery mode whenever they lose connection with the promary: that recovery is sufficient to allow it to resync (even to bring up a new, empty secondary). Hi Tres. This is sort of how I envisioned ZRS (though I have never seen or used it). I

[Zope] Re: ZEO ClientDisconnected error

2006-05-01 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Cyrille Bonnet wrote: Hi there, One of my clients is using Plone on Solaris 9. We have set up one ZEO client on a Solaris machine and a ZEO server on another Solaris machine (for testing purposes only at this stage). Performance is great but

[Zope] Re: ZEO ClientDisconnected error

2006-05-01 Thread Cyrille Bonnet
Hi Tres, thanks for your response: it is very helpful. The posting you refer to is particularly helpful. Thanks for digging it up for me! Cheers, Cyrille Tres Seaver wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Cyrille Bonnet wrote: Hi there, One of my clients is using Plone on

[Zope] Re: ZEO disconnects, Zope auto restarts (via zopectl)

2006-02-03 Thread Florent Guillaume
Dennis Allison wrote: We are seeing spontaneous restarts of Zope with no indication in any of the standard Zope logs. Looking at the ZEO log indicates that the restarts of Zope are due to a lost connection between Zope ZEO but with no other information. The logging level is set at the

[Zope] Re: ZEO clients eating up / filesystem

2005-09-30 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Reinoud van Leeuwen wrote: On Fri, Sep 30, 2005 at 02:13:34PM +0200, Andreas Jung wrote: Perhaps your FS grows because ZEO write the cache files to /tmp (which is on your root filesystem)? No I checked that. Nothing in /tmp (and that would

Re: [Zope] Re: ZEO clients eating up / filesystem

2005-09-30 Thread Reinoud van Leeuwen
On Fri, Sep 30, 2005 at 09:03:29AM -0400, Tres Seaver wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Reinoud van Leeuwen wrote: On Fri, Sep 30, 2005 at 02:13:34PM +0200, Andreas Jung wrote: Perhaps your FS grows because ZEO write the cache files to /tmp (which is on your root

[Zope] Re: ZEO, sockets and Session bug

2005-06-06 Thread Malcolm Cleaton
On Mon, 06 Jun 2005 18:02:01 +1000, Drew Nichols wrote: The sessions are fine 4 out of 5 requests, but the information just disappears every now and then (refreshing the browser shows it still to be there sometimes, others it is just gone). I've seen this behaviour - sessions switching

Re: [Zope] Re: ZEO and session variables.

2005-05-04 Thread Fernando Lujan
Dennis Allison wrote: Hi Paul, Thank you. And, yes, I saw Chris' posting, but I don't think that's the right solution for us. A fast shared session variable store seems to me to be a better way to go and a whole lot more fail safe. Hi Dennis, I posted a solution some time ago. Search the

[Zope] Re: ZEO and session variables.

2005-05-03 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dennis Allison wrote: I am just setting up a multi-headed distributed system with several Zope heads all communications with a ZEO backend. The zopes can be on the same machine or on different machines connected through a high speed backbone.

Re: [Zope] Re: ZEO and session variables.

2005-05-03 Thread Paul Winkler
On Tue, May 03, 2005 at 05:14:56PM -0400, Tres Seaver wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dennis Allison wrote: I am just setting up a multi-headed distributed system with several Zope heads all communications with a ZEO backend. The zopes can be on the same machine or

Re: [Zope] Re: ZEO and session variables.

2005-05-03 Thread Dennis Allison
Hi Paul, Thank you. And, yes, I saw Chris' posting, but I don't think that's the right solution for us. A fast shared session variable store seems to me to be a better way to go and a whole lot more fail safe. On Tue, 3 May 2005, Paul Winkler wrote: On Tue, May 03, 2005 at 05:14:56PM -0400,

[Zope] Re: Zeo

2005-04-27 Thread ken wood
Bakhtiar A Hamid wrote: On 4/27/05, ken wood [EMAIL PROTECTED] wrote: I've searched most site that have info on ZEO but have not been able to find answers to my questions on install for ZEO. Maybe someone on the list can help. I am running Zope 2.7 (with Plone site) on a Win'03 Server. I

[Zope] Re: Zeo

2005-04-27 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 ken wood wrote: I appreciate all the great tips on the cionfiguration issue. But my main issue is about infrastructure: Which hardware and / or operating systems can be used for a Zope/Zeo system. In particular, can I run a Zope instance on my

Re: [Zope] Re: Zeo

2005-04-27 Thread J Cameron Cooper
ken wood wrote: I appreciate all the great tips on the cionfiguration issue. But my main issue is about infrastructure: Which hardware and / or operating systems can be used for a Zope/Zeo system. OS: pretty much any Unixish OS, though on anything but Linux, BSD, and Mac OS X (and maybe

Re: [Zope] Re: Zeo

2005-04-27 Thread Jonathan Cyr
FYI, Back during 2.6.x, I developed my whole system on a Windows Laptop, migrated to a Windows ZEO System, 1 client, 1 server. Then moved the ZEO client server to Red Hat AS 2.1, and now finally to SuSE 9.0. The only differences for me were the steps in installing PIL (Python Imaging

[Zope] Re: Zeo

2005-04-27 Thread Bakhtiar A Hamid
On 4/27/05, ken wood [EMAIL PROTECTED] wrote: Hey guys, I appreciate all the great tips on the cionfiguration issue. But my main issue is about infrastructure: Which hardware and / or operating systems can be used for a Zope/Zeo system. In particular, can I run a Zope instance on my

[Zope] Re: Zeo

2005-04-26 Thread Bakhtiar A Hamid
On 4/27/05, ken wood [EMAIL PROTECTED] wrote: I've searched most site that have info on ZEO but have not been able to find answers to my questions on install for ZEO. Maybe someone on the list can help. I am running Zope 2.7 (with Plone site) on a Win'03 Server. I would like to run ZEO

Re: [Zope] Re: ZEO and Sessions.

2005-04-15 Thread Bakhtiar A Hamid
On 4/14/05, Richard Jones [EMAIL PROTECTED] wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Wed, 13 Apr 2005 10:21 am, Tres Seaver wrote: Richard Jones wrote: Yeah, I remember poking around that code way back, and it seemed reasonable. Its interactions with transactions are

[Zope] Re: ZEO and Sessions.

2005-04-15 Thread Michael Haubenwallner
Bakhtiar A Hamid wrote: On 4/14/05, Richard Jones [EMAIL PROTECTED] wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Wed, 13 Apr 2005 10:21 am, Tres Seaver wrote: Richard Jones wrote: Yeah, I remember poking around that code way back, and it seemed reasonable. Its interactions with

Re: [Zope] Re: ZEO and Sessions.

2005-04-15 Thread Richard Jones
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, 15 Apr 2005 05:54 pm, Michael Haubenwallner wrote: Bakhtiar A Hamid wrote: Richard Jones wrote: http://www.zope.org/Members/richard/ZSQLSessionDataManager ark! insufficient priveleges Works now ! Well, it does *sometimes*. Whenever

[Zope] Re: ZEO and Sessions.

2005-04-15 Thread Michael Haubenwallner
Richard Jones wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, 15 Apr 2005 05:54 pm, Michael Haubenwallner wrote: Bakhtiar A Hamid wrote: Richard Jones wrote: http://www.zope.org/Members/richard/ZSQLSessionDataManager ark! insufficient priveleges Works now ! Well, it does *sometimes*.

Re: [Zope] Re: ZEO and Sessions.

2005-04-14 Thread Richard Jones
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Wed, 13 Apr 2005 10:21 am, Tres Seaver wrote: Richard Jones wrote: Yeah, I remember poking around that code way back, and it seemed reasonable. Its interactions with transactions are the bits that scare me. Using a standard RDBMS connection

[Zope] Re: ZEO and Sessions.

2005-04-14 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Richard Jones wrote: On Wed, 13 Apr 2005 10:21 am, Tres Seaver wrote: Richard Jones wrote: Yeah, I remember poking around that code way back, and it seemed reasonable. Its interactions with transactions are the bits that scare me. Using a standard

Re: [Zope] Re: ZEO and Sessions.

2005-04-14 Thread Dario Lopez-Kästen
Tres Seaver wrote: http://www.zope.org/Members/richard/ZSQLSessionDataManager Cool. Where is CVS for that, so that I don't bug you for features. ;) I could import it to cvs.zope.org, if you like. I'd like to add Oracle support since I need it myself, and when I have working changes would like

[Zope] Re: ZEO and Sessions.

2005-04-12 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Richard Jones wrote: On Wed, 13 Apr 2005 09:44 am, Chris McDonough wrote: Probably not hard. You could write a session data manager implementation that used a relational database. The interface for those things is in

[Zope] Note on 2GB limit for ZODB FileStorage (was Re: [Zope] Re: ZEO and 2gbmax limit for linux .. not for solaris etc.)max limit for linux .. not for solaris etc.)

2000-08-10 Thread Jim Fulton
Please note that we recently found a bug in ZODB FileStorage that causes it to fail miserably if a file gets over 2GB. This bug is fixed in Zope 2.2.1, which is being released in beta today. Note that even with this fix, your OS/File-System/Python-config must support files over 2GB to allow

[Zope] Re: ZEO and 2gb max limit for linux .. not for solaris etc.

2000-07-27 Thread Jørgen Skogstad
Sven Hohage wrote: Hallo Jorgen, I write you cause I've got a question about Zope. You've posted on the mailing list on my question with the filesize of the data.fs or in ZEO ZSS. My problem is that I'd like to know which Unix - versions don't have this filesize limitations and if there

Re: [Zope] Re: ZEO and 2gb max limit for linux .. not for solaris etc.

2000-07-27 Thread Zope
If you don't wan't to run Sun or HP-UX you could always look at one of the open *BSD clones. As I can recall both OpenBSD and FreeBSD have filsystems that manage 2GB files. /Johan Sven Hohage wrote: Hallo Jorgen, I write you cause I've got a question about Zope. You've posted on

Re: [Zope] Re: ZEO and 2gb max limit for linux .. not for solaris etc.

2000-07-27 Thread Bill Anderson
Jørgen Skogstad wrote: Sven Hohage wrote: Hallo Jorgen, I write you cause I've got a question about Zope. You've posted on the mailing list on my question with the filesize of the data.fs or in ZEO ZSS. My problem is that I'd like to know which Unix - versions don't have this

[Zope] SV: [Zope] Re: ZEO and 2gb max limit for linux .. not for solaris etc.

2000-07-27 Thread Jørgen Skogstad
Hmm.. well .. I can tell you what I know as of today. Linux has this limitation as of today. At least all the variants I have come over (mostly Red Hat and Suse). The limitation is in the filesystem implementation itself; meaning that the number of "references" that can be created