Re: [Zope] still having problems

2005-11-14 Thread Chris McDonough 


On Nov 14, 2005, at 9:21 PM, Dennis Allison wrote:



ZEO 3.4.2
Zope 2.8.4
ZODB 3.4.2 as relesed with Zope 2.8.4B
Python 2.4.2 or 2.3.5
MySQL 4.0.20
MySQL-Python 1.2.0
MYSQLDA 2.0.9

We have just moved from Zope 2.7.6 to Zope 2.8.4 motivated, in  
part, but
the ability to avoid read conflicts under ZODB 3.4.2.  We have been  
having
a lot of problems: more conflict errors, release of unreleased  
locks in

MySQL transactions, loss of session variables, and others.


Deja vu. ;-)  Except for the InnoDB tables.



We use session variables and MySQL very heavily.  All database  
tables are

now transactional (innodb) migrated from the MyISAM tables in use
earlier.

The connection string, by the way, does not use either the '-' or '+'
prefix but relies on a run-time test for the table to be determined to
be transactional.

All our Zope instances run with ZEO and use a Temporary Store  
instance for

session variables.  The ZEO configuration is:


  path $INSTANCE/var/Data.fs


# temporary storage has to be ZEO side
%import tempstorage

name temporary storage for sessioning


and is matched to the Zope configuration:


  mount-point /
  # ZODB cache, in number of objects
  cache-size 5000
  
server 192.168.0.92:8301
storage 1
var $INSTANCE/var
# ZEO client cache, in bytes
cache-size 20MB
# Uncomment to have a persistent disk cache
client group1-zeo
  

#
# ZEO temporary storage
#


server 192.168.0.92:8301
storage temp
name zeostorage
var $INSTANCE/var

mount-point /temp_folder
container-class Products.TemporaryFolder.TemporaryContainer


Are these configurations correct?


Looks fine to me.



The snippet of log shown below show the problem that plagues us:

--
2005-11-14T06:20:40 ERROR txn.4100 Error in tpc_abort() on manager
 at 1186514860>
Traceback (most recent call last):
  File
"/usr/local/src/zope/Zope2.8/lib/python/transaction/ 
_transaction.py", line

462, in _cleanup
rm.tpc_abort(self)
  File
"/usr/local/src/zope/Zope2.8/lib/python/transaction/ 
_transaction.py", line

548, in tpc_abort
self.manager.tpc_abort(txn)
  File "/usr/local/src/zope/Zope2.8/lib/python/Shared/DC/ZRDB/ 
TM.py", line

64, in abort
try: self._abort()
  File "/opt/zope/zproducts/standard/ZMySQLDA/db.py", line 389, in  
_abort

self._tlock.release()
error: release unlocked lock
--
2005-11-14T06:20:40 INFO ZODB conflict error at
/classes/class_applications/classaccess/topic_html (658 conflicts  
since

startup at 2005-11-11T01:26:40)
--
2005-11-14T06:20:40 ERROR txn.4100 Failed to abort object: Surrogate
oid=
Traceback (most recent call last):
  File
"/usr/local/src/zope/Zope2.8/lib/python/transaction/ 
_transaction.py", line

562, in abort
self.manager.abort(o, txn)
  File "/usr/local/src/zope/Zope2.8/lib/python/Shared/DC/ZRDB/ 
TM.py", line

64, in abort
try: self._abort()
  File "/opt/zope/zproducts/standard/ZMySQLDA/db.py", line 389, in  
_abort

self._tlock.release()
error: release unlocked lock
--
2005-11-14T06:20:40 ERROR txn.4100 Failed to abort resource manager:
 at 1186514860>
Traceback (most recent call last):
  File
"/usr/local/src/zope/Zope2.8/lib/python/transaction/ 
_transaction.py", line

489, in abort
rm.abort(self)
  File
"/usr/local/src/zope/Zope2.8/lib/python/transaction/ 
_transaction.py", line

562, in abort
self.manager.abort(o, txn)
  File "/usr/local/src/zope/Zope2.8/lib/python/Shared/DC/ZRDB/ 
TM.py", line

64, in abort
try: self._abort()
  File "/opt/zope/zproducts/standard/ZMySQLDA/db.py", line 389, in  
_abort

self._tlock.release()
error: release unlocked lock

which is a pattern typical of the many such entries: a log entry  
for an
abort which raises a lock error, a report of a conflict error, a  
report of

a failure to abort a Surrogate oid, followed by a second abort of the
first instance.


Is this reproducible on demand or does it only occur under some load?



We also see frequent KeyError failures in the session variable data
structure which suggests that the copy-out/modify/copy-in mechanism  
used
to tickle the persistence mechanism does not run to completion and  
so the

Zope persistence fail and the session variable structure is pruned or
removed at some random later time.  Some diagnostics are seen which
report that the REQUEST['SESSION'] is occasionally removed.


You'll need to provide some error messages for interpretation here.   
Otherwise it's guesswork.  You also likely want to solve the abort  
problem you explain above first, because at least the first symptom  
you note above could be a symptom of that (although not the last).




Questions:
~~

What is the cause of the locking problem?  Does ZMySQLDA/MySQL- 
Python/Zope
have some path which should have called begin to get a lock and did  
not?


No idea, sorry.  I assume this worked OK under 2.7.X and the only  
real meaningful difference is a move to 2.8?




What needs to be do

[Zope] still having problems

2005-11-14 Thread Dennis Allison 

ZEO 3.4.2
Zope 2.8.4
ZODB 3.4.2 as relesed with Zope 2.8.4B
Python 2.4.2 or 2.3.5 
MySQL 4.0.20
MySQL-Python 1.2.0
MYSQLDA 2.0.9

We have just moved from Zope 2.7.6 to Zope 2.8.4 motivated, in part, but 
the ability to avoid read conflicts under ZODB 3.4.2.  We have been having 
a lot of problems: more conflict errors, release of unreleased locks in 
MySQL transactions, loss of session variables, and others.

We use session variables and MySQL very heavily.  All database tables are 
now transactional (innodb) migrated from the MyISAM tables in use 
earlier.

The connection string, by the way, does not use either the '-' or '+'
prefix but relies on a run-time test for the table to be determined to 
be transactional.

All our Zope instances run with ZEO and use a Temporary Store instance for
session variables.  The ZEO configuration is:


  path $INSTANCE/var/Data.fs


# temporary storage has to be ZEO side
%import tempstorage

name temporary storage for sessioning


and is matched to the Zope configuration:


  mount-point /
  # ZODB cache, in number of objects
  cache-size 5000
  
server 192.168.0.92:8301
storage 1
var $INSTANCE/var
# ZEO client cache, in bytes
cache-size 20MB
# Uncomment to have a persistent disk cache
client group1-zeo
  

#
# ZEO temporary storage
#


server 192.168.0.92:8301
storage temp
name zeostorage
var $INSTANCE/var

mount-point /temp_folder
container-class Products.TemporaryFolder.TemporaryContainer


Are these configurations correct?

The snippet of log shown below show the problem that plagues us:

--
2005-11-14T06:20:40 ERROR txn.4100 Error in tpc_abort() on manager 
 at 1186514860>
Traceback (most recent call last):
  File 
"/usr/local/src/zope/Zope2.8/lib/python/transaction/_transaction.py", line 
462, in _cleanup
rm.tpc_abort(self)
  File 
"/usr/local/src/zope/Zope2.8/lib/python/transaction/_transaction.py", line 
548, in tpc_abort
self.manager.tpc_abort(txn)
  File "/usr/local/src/zope/Zope2.8/lib/python/Shared/DC/ZRDB/TM.py", line 
64, in abort
try: self._abort()
  File "/opt/zope/zproducts/standard/ZMySQLDA/db.py", line 389, in _abort
self._tlock.release()
error: release unlocked lock
--
2005-11-14T06:20:40 INFO ZODB conflict error at 
/classes/class_applications/classaccess/topic_html (658 conflicts since 
startup at 2005-11-11T01:26:40)
--
2005-11-14T06:20:40 ERROR txn.4100 Failed to abort object: Surrogate 
oid=
Traceback (most recent call last):
  File 
"/usr/local/src/zope/Zope2.8/lib/python/transaction/_transaction.py", line 
562, in abort
self.manager.abort(o, txn)
  File "/usr/local/src/zope/Zope2.8/lib/python/Shared/DC/ZRDB/TM.py", line 
64, in abort
try: self._abort()
  File "/opt/zope/zproducts/standard/ZMySQLDA/db.py", line 389, in _abort
self._tlock.release()
error: release unlocked lock
--
2005-11-14T06:20:40 ERROR txn.4100 Failed to abort resource manager: 
 at 1186514860>
Traceback (most recent call last):
  File 
"/usr/local/src/zope/Zope2.8/lib/python/transaction/_transaction.py", line 
489, in abort
rm.abort(self)
  File 
"/usr/local/src/zope/Zope2.8/lib/python/transaction/_transaction.py", line 
562, in abort
self.manager.abort(o, txn)
  File "/usr/local/src/zope/Zope2.8/lib/python/Shared/DC/ZRDB/TM.py", line 
64, in abort
try: self._abort()
  File "/opt/zope/zproducts/standard/ZMySQLDA/db.py", line 389, in _abort
self._tlock.release()
error: release unlocked lock

which is a pattern typical of the many such entries: a log entry for an 
abort which raises a lock error, a report of a conflict error, a report of 
a failure to abort a Surrogate oid, followed by a second abort of the 
first instance.  

We also see frequent KeyError failures in the session variable data 
structure which suggests that the copy-out/modify/copy-in mechanism used 
to tickle the persistence mechanism does not run to completion and so the 
Zope persistence fail and the session variable structure is pruned or 
removed at some random later time.  Some diagnostics are seen which 
report that the REQUEST['SESSION'] is occasionally removed.

Questions:
~~

What is the cause of the locking problem?  Does ZMySQLDA/MySQL-Python/Zope
have some path which should have called begin to get a lock and did not?

What needs to be done to make session variables stable?  Does the 
Temporary Storage method need to be extended to allow for rolling back 
a transaction?   (What's a good approch if this is necessary?  Is there 
any existing product supporting this?)

Any other help or advice would be appreciated. 

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[Zope] Re: ssh tunnelling webdave

2005-11-14 Thread Sam Stainsby 
On Mon, 14 Nov 2005 17:30:36 -0700, David Bear wrote:

> I am having trouble getting webdav to work through ssh tunnels. I hope
> someone may be able to offer a suggestion.
> 
> running zope 2.7.4
> on FreeBSD 4.9
> python 2.4.
> 
> my zope.cnf file has the following under webdav-source
> 
> # valid keys are "address" and "force-connection-close"
> address 8088
> force-connection-close off
> 
> 
> the server address is set as follows:
> 
> ip-address 127.0.0.1 
> 
> To clarify things, I front this with apache and connect to it using fastcgi
> connecting to localhost:8089.
> This works fine and has been for 2 years. I only want to add webdav
> capability. Since I haven't seen any documentation
> passing webdav through apache, I thought I would have to resort to stunnel
> or tunneling through ssh. So, on my ssh client, I do the follwoing
> 
> ssh -L 8088:localhost:8088 zopeserver.asu.edu 

I have, as of this morning, just got Zope webdav working through Apache,
with Apache only allowing HTTPS access (I assume this is what you are
trying to achieve, for security reasons?). No need for SSH tunnels at all.
Just some URL rewriting:

RewriteRule ^/dav/(.*)
http://localhost:9675/VirtualHostBase/https/example.com:9670/VirtualHostRoot/_vh_dav/$1
[P]

(host name changed to protect the innocent). I have Zope serving only to
127.0.0.1, serving webdav on a separate port (9675) to HTTP. I have other
rewrite rules to cater for ordinary HTTP (non-webdav) access. Apache is
serving up HTTPS on port 9670. With my config up above, you prepend '/dav'
to the path to access things via webdav e.g.
https://example.com:9670/dav/myfolder/ for "webdavs" access to
"myfolder" instead of https://example.com:9670/myfolder/ for https access.

I also have applied a patch to Zope to make it work with Microsoft's
latest (failed) attempt to get webdav right. I used the info here:
http://teyc.editthispage.com/2005/06/02 .. note: add the line to the
OPTIONS method in the file that they mention. I can add a new webdav
"network place" under XP and drag/drop/delete of files works. Of course,
the usual Linux clients work without any patching.






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Re: [Zope] export/import problems with plone site

2005-11-14 Thread Faheem Mitha 



On Mon, 14 Nov 2005, [ISO-8859-15] Tarek Ziadé wrote:


Faheem Mitha wrote:



Hi,

I successfully exported/imported a Plone site from one Zope instance to 
another.


However, when I try to publish the Plone page, I experience an error.

Does anyone know what the problem is here, or what to look for?


Hi,

It looks like the pagetemplate portlet_forum_latest doesn't exist on the 
target instance


Hi,

Thanks for replying.

Yes, it looks like portlet_forum_latest comes from CMFBoard. This is in 
the Product folder in the original Zope instance on Fedora. Sttempts to 
put it in the new Zope instance on Debian result in the Zope site hanging 
when I attempt to access it.


Any ideas?  Faheem.









You should also reindex the portal_catalog after the import is finished


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Re: [Zope] export/import problems with plone site

2005-11-14 Thread Faheem Mitha 



On Mon, 14 Nov 2005, J Cameron Cooper wrote:


Faheem Mitha wrote:

I successfully exported/imported a Plone site from one Zope instance to 
another.


However, when I try to publish the Plone page, I experience an error.

Does anyone know what the problem is here, or what to look for?

Is this perhaps a more Plone speciific problem?


AttributeError: portlet_forum_latest (Also, an error occurred while 
attempting to render the standard error message.)


Sounds like some forum product is installed on the first instance and not the 
second.


Hi,

Thanks for replying.

Based on a little Googling, it looks like the problem is with the 
CMFBoard. This is in the Product folder in the original Zope folder, but 
attempts to put it in the new Zope folder result in the Zope site hanging 
when I attempt to access it.


Any ideas?  Faheem.
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[Zope] ssh tunnelling webdave

2005-11-14 Thread David Bear 
I am having trouble getting webdav to work through ssh tunnels. I hope someone may be able to offer a suggestion.

running zope 2.7.4
on FreeBSD 4.9
python 2.4.

my zope.cnf file has the following under webdav-source
  
    # valid keys are "address" and "force-connection-close"
    address 8088
    force-connection-close off
  

the server address is set as follows:

    ip-address 127.0.0.1

To clarify things, I front this with apache and connect to it using fastcgi connecting to localhost:8089.
This works fine and has been for 2 years. I only want to add webdav capability. Since I haven't seen any documentation 
passing webdav through apache, I thought I would have to resort to
stunnel or tunneling through ssh. So, on my ssh client, I do the
follwoing

ssh -L 8088:localhost:8088 zopeserver.asu.edu

I connect and properly authenticate. However, when I attempt to load cadaver on the client, I get a connection timeout.

Partial output from netstat -an indicates that all zservers are listening where they should:

tcp4  
0  0 
127.0.0.1.8089
*.*   
LISTEN
tcp4  
0  0 
127.0.0.1.8088
*.*   
LISTEN
tcp4  
0  0 
127.0.0.1.8080
*.*   
LISTEN

(this done on the zopeserver)

Any advice would be greatly appreciated.

-- David BearWhat's the difference between private knowledge and public knowledge?
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RE: [Zope] Re: zope 2.8.4 on windows 98

2005-11-14 Thread Fernando Martins 


From: J Cameron Cooper
>
> Probably this is just in the start sequence. You cannot, of course, run
> Zope as a service in Win98, since it understands no such thing. Quite
> possibly you can use runzope or whatever to execute it in a console.
>
> I can't say exactly as the traceback has been edited out of this thread
> (and I've deleted the old messages).
>

Indeed it's in the start sequence and I'm not trying to run it as a service.

This is the traceback:

Traceback (most recent call last):
  File "C:\Program Files\Zope-2.8.4\lib\python\Zope2\Startup\run.py", line
56, i
n ?
run()
  File "C:\Program Files\Zope-2.8.4\lib\python\Zope2\Startup\run.py", line
21, i
n run
starter.prepare()
  File "C:\PROGRAM FILES\ZOPE-2.8.4\lib\python\Zope2\Startup\__init__.py",
line
99, in prepare
self.registerSignals()
  File "C:\PROGRAM FILES\ZOPE-2.8.4\lib\python\Zope2\Startup\__init__.py",
line
320, in registerSignals
Signals.registerZopeSignals([self.cfg.eventlog,
  File "C:\PROGRAM FILES\ZOPE-2.8.4\lib\python\Signals\Signals.py", line
116, in
 registerZopeSignals
SignalHandler.registerHandler(SIGTERM, shutdownFastHandler)
  File "C:\PROGRAM FILES\ZOPE-2.8.4\lib\python\Signals\WinSignalHandler.py",
lin
e 207, in registerHandler
sa = createEventSecurityObject()
  File "C:\PROGRAM FILES\ZOPE-2.8.4\lib\python\Signals\WinSignalHandler.py",
lin
e 84, in createEventSecurityObject
sidEveryone.Initialize(ntsecuritycon.SECURITY_WORLD_SID_AUTHORITY,1)
pywintypes.error: (120, 'InitializeSid', 'This function is only valid in
Win32 m
ode.')

I wonder if this could a problem of the installer, but doesn't seem very
likely as I assume it doesn't change the source code. I didn't have the time
to try the tarball in win98SE. I have no idea how much work that could be.

Fernando

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Re: [Zope] Re: zope 2.8.4 on windows 98

2005-11-14 Thread J Cameron Cooper 

Fernando Martins wrote:

Andreas Jung wrote:


On Sat, 12 Nov 2005 03:52:28 -0800, Fernando Martins
 wrote:



I understand the problem, but is it the intention that zope is not
supported on win98?


Yes, I believe this is intentional. Windows 98 is a seven year old OS
with  insufficient infrastructure to reliably run server tasks anyway. At
least  get Windows 2000, which has a decent kernel.



However that does not mean that Zope won't run on Windows 98. For a recent
project where we ship and install Zope on all customers desktop machines I
had to do a lot of testing especially on Windows 98.



I've been using zope 2.7.4 on win 98 for some development/testing, not as a
real server.

But I'm confused by your statement: if zope 2.8.4 is calling an NT security
function, not available in win98, then it does NOT run on win98?? DO you
mean there is something wrong with my win98 setup or that zope 2.8.4 could
be patched to overcome this issue?


Probably this is just in the start sequence. You cannot, of course, run 
Zope as a service in Win98, since it understands no such thing. Quite 
possibly you can use runzope or whatever to execute it in a console.


I can't say exactly as the traceback has been edited out of this thread 
(and I've deleted the old messages).


FYI, the last time I tried Zope on Win98 was Zope 2.2.

--jcc
--
"Building Websites with Plone"
http://plonebook.packtpub.com
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Re: [Zope] Render a string as tal

2005-11-14 Thread Paul Winkler 
On Mon, Nov 14, 2005 at 01:19:18PM -0700, Mark Gibson wrote:
> I would like to be able to render an arbitrary string as tal, having the
> tal statements evaluated correctly.
> 
> How would I go about doing this?

I assume you  mean TALES expressions.
See:
http://zopelabs.com/cookbook/1037762730

-- 

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http://www.slinkp.com
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[Zope] Render a string as tal

2005-11-14 Thread Mark Gibson 
I would like to be able to render an arbitrary string as tal, having the
tal statements evaluated correctly.

How would I go about doing this?


-- 
Mark Gibson <[EMAIL PROTECTED]>

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Re: [Zope] export/import problems with plone site

2005-11-14 Thread J Cameron Cooper 

Faheem Mitha wrote:

I successfully exported/imported a Plone site from one Zope instance to 
another.


However, when I try to publish the Plone page, I experience an error.

Does anyone know what the problem is here, or what to look for?

Is this perhaps a more Plone speciific problem?


AttributeError: portlet_forum_latest (Also, an error occurred while 
attempting to render the standard error message.)


Sounds like some forum product is installed on the first instance and 
not the second.


--jcc
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[Zope] export/import problems with plone site

2005-11-14 Thread Faheem Mitha 


Hi,

I successfully exported/imported a Plone site from one Zope instance to 
another.


However, when I try to publish the Plone page, I experience an error.

Does anyone know what the problem is here, or what to look for?

Is this perhaps a more Plone speciific problem?

  Faheem.
*

Site Error

An error was encountered while publishing this resource.

AttributeError
Sorry, a site error occurred.

Traceback (innermost last):

* Module ZPublisher.Publish, line 175, in publish_module_standard
* Module Products.PlacelessTranslationService.PatchStringIO, line 51, 
in new_publish

* Module ZPublisher.Publish, line 132, in publish
* Module Zope.App.startup, line 204, in zpublisher_exception_hook
* Module ZPublisher.Publish, line 101, in publish
* Module ZPublisher.mapply, line 88, in mapply
* Module ZPublisher.Publish, line 39, in call_object
* Module Products.CMFCore.PortalContent, line 116, in __call__
* Module Shared.DC.Scripts.Bindings, line 306, in __call__
* Module Shared.DC.Scripts.Bindings, line 343, in _bindAndExec
* Module Products.CMFCore.FSPageTemplate, line 191, in _exec
* Module Products.CMFCore.FSPageTemplate, line 124, in pt_render
* Module Products.PageTemplates.PageTemplate, line 96, in pt_render
  
* Module TAL.TALInterpreter, line 190, in __call__
* Module TAL.TALInterpreter, line 234, in interpret
* Module TAL.TALInterpreter, line 671, in do_useMacro
* Module TAL.TALInterpreter, line 234, in interpret
* Module TAL.TALInterpreter, line 409, in do_optTag_tal
* Module TAL.TALInterpreter, line 394, in do_optTag
* Module TAL.TALInterpreter, line 389, in no_tag
* Module TAL.TALInterpreter, line 234, in interpret
* Module TAL.TALInterpreter, line 702, in do_defineSlot
* Module TAL.TALInterpreter, line 234, in interpret
* Module TAL.TALInterpreter, line 637, in do_condition
* Module TAL.TALInterpreter, line 234, in interpret
* Module TAL.TALInterpreter, line 702, in do_defineSlot
* Module TAL.TALInterpreter, line 234, in interpret
* Module TAL.TALInterpreter, line 409, in do_optTag_tal
* Module TAL.TALInterpreter, line 394, in do_optTag
* Module TAL.TALInterpreter, line 389, in no_tag
* Module TAL.TALInterpreter, line 234, in interpret
* Module TAL.TALInterpreter, line 671, in do_useMacro
* Module TAL.TALInterpreter, line 234, in interpret
* Module TAL.TALInterpreter, line 637, in do_condition
* Module TAL.TALInterpreter, line 234, in interpret
* Module TAL.TALInterpreter, line 409, in do_optTag_tal
* Module TAL.TALInterpreter, line 394, in do_optTag
* Module TAL.TALInterpreter, line 389, in no_tag
* Module TAL.TALInterpreter, line 234, in interpret
* Module TAL.TALInterpreter, line 613, in do_loop_tal
* Module TAL.TALInterpreter, line 234, in interpret
* Module TAL.TALInterpreter, line 409, in do_optTag_tal
* Module TAL.TALInterpreter, line 394, in do_optTag
* Module TAL.TALInterpreter, line 389, in no_tag
* Module TAL.TALInterpreter, line 234, in interpret
* Module TAL.TALInterpreter, line 637, in do_condition
* Module TAL.TALInterpreter, line 234, in interpret
* Module TAL.TALInterpreter, line 409, in do_optTag_tal
* Module TAL.TALInterpreter, line 394, in do_optTag
* Module TAL.TALInterpreter, line 389, in no_tag
* Module TAL.TALInterpreter, line 234, in interpret
* Module TAL.TALInterpreter, line 657, in do_useMacro
* Module Products.PageTemplates.TALES, line 221, in evaluate
  Line 16, Column 12
  Expression: 
  Names:

{'container': ,
 'context': ,
 'default': ,
 'here': ,
 'loop': ,
 'modules': instance at 0x40b0c10c>,

 'nothing': None,
 'options': {'args': ()},
 'repeat': ,
 'request': URL=http://riverside.dulci.biostat.duke.edu:9673/dulci/index_html>,

 'root': ,
 'template': /dulci/index_html>,

 'traverse_subpath': [],
 'user': faheem}

* Module Products.PageTemplates.ZRPythonExpr, line 47, in __call__
  __traceback_info__: path(pathexpr)
* Module Python expression "path(pathexpr)", line 1, in 
* Module Products.PageTemplates.PythonExpr, line 81, in __call__
* Module Products.PageTemplates.Expressions, line 172, in __call__
* Module Products.PageTemplates.Expressions, line 160, in _eval
* Module Products.PageTemplates.Expressions, line 116, in _eval
  __traceback_info__: here
* Module Products.PageTemplates.Expressions, line 325, in 
restrictedTraverse
  __traceback_info__: {'path': ['portlet_forum_latest', 'macros', 
'portlet'], 'TraversalRequestNameStack': ['portlet', 'macros']}


AttributeError: portlet_forum_latest (Also, an error occurred while 
attempting to render the standard error message.)


Troubleshooting Suggestions

* The URL may be incorrect.
* The parameters passed to th

[Zope] Apache-pound-zeo-zope instances. Bad gateway and dual cpus related issues

2005-11-14 Thread Christophe Gravier 



Hi,

I did not find any "architecture related" mailing list, so I deceided topost on the general list. 
I hope this is OK.


I am struggling with my new zeo/zope architecture for some days now.
I come to the conclusion that I should ask for help.

I currently single cpu machine hosting zope + apache.

I am trying to migrate to the architecture:

machine A : Apache+pound
machine B : 1 zeo + 1 zope  
machine C : 2 zope  
machine D : 2 zope  

all dual core, debian etch testing, Zope is 2.8.1-final and python 2.3.5.

1) Apache (machine A)

In /etc/apache2/apache2.conf I inserted the rewrite rule:
[...]
NameVirtualHost 161.3.50.16


ServerName ist-guizay.univ-st-etienne.fr
DocumentRoot /var/www/
RewriteEngine On
RewriteRule ^/(.*) 
http://161.3.50.16:81/VirtualHostBase/http/ist-guizay.univ-st-etienne.fr:80/VirtualHostRoot/$1
 [P]

[...]

That is to say that ist-guizay.univ-st-etienne.fr is machine A ...
I want to pass to my pound (listening on the same machine, port 81), all 
request on 80 port of ist-guizay.univ-st-etienne.fr

2) Pound (machine A)

In /etc/pound/pound.cfg, I have:

[...] 
ListenHTTP *,81


UrlGroup ".*"
BackEnd ip_machine_B,8080,1
BackEnd ip_machine_C,8080,2
BackEnd ip_machine_D,8080,2
EndGroup
[...]


The architecture is all hosted in the same service (inside an university, no 
external firewalls except the one on the machine that are filtering 
zeo/zope/pound/apache ports).

I can do :

http://machineB.mondomain.com:8080
http://machineC.mondomain.com:8080
http://machineD.mondomain.com:8080

All give me the welcome Zope installation page, as well as 
http://machineA.mondomain.com:81.
(pound conf is ok)

But I cannot go any further in my installation. 



There 2 things that troubles my understanding:

A) RewriteRule:

http://machineA.mondomain.com as well as http://machineA.mondomain.com/Portail
(where /Portail is the path to plone site in fact), both replies:

"Bad Gateway

The proxy server received an invalid response from an upstream server."

I shall have done some mistakes in apache2.conf on the rewriterule:
RewriteRule ^/(.*) 
http://161.3.50.16:81/VirtualHostBase/http/ist-guizay.univ-st-etienne.fr:80/VirtualHostRoot/$1
 [P]

but obviously I don't see it.
The current production for 2 years does work (one single cpu with both apache 
and zope instance) with the same kind of RewriteRule mechanism.

B) About running zope on dual core cpus:

Not as critical but I missed something here too.

I read (http://mail.zope.org/pipermail/zope/1999-December/100589.html) that 
python core got some lock policies in single thread mode, but I expected to 
associate one instance per cpu to solve it out. That is the reason why I 
configured 2 instances per machine (they are dual core ...).
Nevertheless, If I log into machine B (running two zope instances), making 
tail -f ./instances/instance1/log/Z2.log

and in another terminal, for the same machine:
tail -f ./instances/instance2/log/Z2.log

Then, I configure pound to redirect all requests on machine B and finally hit 
http://machineB:81 a lots, all requests goes to instance1 (first launched).
I would expect the system to make the balancing (if one cpu is used by a thread 
instance1, instance2 can still response with cpu 2 ...)
Obviously this is not the case, why ?
I solve it by making instances listen on different ports so that pound got now 
2 differents entries for one host (one entry per instance).

Sorry for the long post, but these are all things needed to be explained to let 
you understand my problem.


Best Regards,

--
Christophe Gravier
Laboratoire DIOM, groupe SATIn - Doctorant
ISTASE - Ingénieur d'études
Perso: http://perso.univ-st-etienne.fr/gravchri/
SATIn: http://www.istase.com/satin
Tel : 04 7748 5034

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Re: [Zope] htmltopdf

2005-11-14 Thread Shane Graber 
FWIW, there's also Prince that you can run on your server:
http://www.princexml.com  I haven't worked much with it, but the docs
say you can.

Shane

On 11/14/05, Charles Zealey <[EMAIL PROTECTED]> wrote:
> Christoph Berendes wrote:
>
> > Asad Habib wrote:
> >
> >> Has anyone successfully used htmltopdf, a PHP script written by Jason
> >> Rust (www.rustyparts.com) to convert an HTML file to PDF, with Zope?
> >> In particular, I wanted to find out if anyone had used the python
> >> equivalent of this PHP script.
> >
> >
> >
> > We've been looking into this recently. Raw notes on various tools and
> > links below, first on HTML to pdf/ps, and then on HTML to image
> > (jpeg/png) directly, which is ultimately what we need to do.
> >
> >
> > The main thing is that many of the html to ps/pdf tools don't handle
> > CSS well, if at all. The big exception there is shown (with a live
> > demo) at http://www.tufat.com/script19.htm. It's fabulous - handles
> > pages from csszengarden quite well.
> >
> > At the moment, we're going with a simpler approach to our problem
> > (watermarks), but if we went the HTML to PDF/image route, I'd look at
> > the tufat.com script, or the approach noted at the hackdiary.com link.
> >
> >
> > HTML TO PDF/PS CONVERSION
> > "html2ps":http://user.it.uu.se/~jan/html2ps.html
> >
> > "html to pdf in php":http://www.rustyparts.com/pdf.php
> >
> > "python script for html to pdf
> > conversion":http://www.rustyparts.com/scripts/HTML_ToPDF/contrib/html2pdf.py
> >
> >
> > "html2doc":http://www.easysw.com/htmldoc , a proprietary tool
> >
> > "denature":http://denature.sourceforge.net/, html to pdf via xsl/fo in
> > Perl
> >
> > other "html to pdf":http://tinyurl.com/a8u7q tools at Freshmeat
> >
> > 
> > Zope cookbook has a "recipe":http://zopelabs.com/cookbook/1069611008
> > using (yum-able)
> > "recode":http://www.gnu.org/software/recode/recode.html and
> > "html2doc":http://www.htmldoc.org/ aka a "product from
> > ESP":http://www.easysw.com/htmldoc/ (under GNU license)
> >
> > * there's also the apparently very simple
> > "ZpdfDocument":http://www.zope.org/Members/gaaros/ZpdfDocument
> >
> >
> >
> > 
> >
> > There is a "php version of html2ps":http://www.tufat.com/script19.htm
> > which handles background images, e.g. from here
> > "http://www.netmechanic.com/news/vol5/HTMLTest_background.htm":http://www.netmechanic.com/news/vol5/HTMLTest_background.htm
> >
> >
> >
> > HTML TO IMAGE CONVERSION
> >
> > * "html2jpg":http://freshmeat.net/projects/html2jpg/ "project
> > page":http://marginalhacks.com/Hacks/html2jpg/ (requires mozilla)
> >
> > * "khtml2png":http://directory.fsf.org/webauth/misc/khtml2png.html
> > (not maintained) also used
> > "here":http://www.michaelhoover.org/work/2004/07/khtml2png.html
> >
> > * "another python-based
> > app":http://www.hackdiary.com/archives/55.html(may be the most
> > promising)"http://www.pygtk.org/":http://www.pygtk.org/
> >
> > * "webkit2png":http://www.paulhammond.org/webkit2png/
> >
> >
> > * "Easy capture":http://www.perturb.org/display/entry/728/ for the PHP
> > environment (not HTML, just images)
> >
> > * "HTML/CSS/javascript
> > approach":http://www.electropubs.com/watermark_install.htm
> >
> >
> > * using "PHP and GD":http://www.sitepoint.com/print/watermark-images-php
> > ___
> > Zope maillist  -  Zope@zope.org
> > http://mail.zope.org/mailman/listinfo/zope
> > **   No cross posts or HTML encoding!  **
> > (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce
> > http://mail.zope.org/mailman/listinfo/zope-dev )
>
> I've been using the htmldoc route for ages now.  Bit limited in that
> it's HTML 3 but works fine for me.
>
> Charles
> ___
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>  http://mail.zope.org/mailman/listinfo/zope-dev )
>


--
http://liquid.homelinux.org/
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Re: [Zope] htmltopdf

2005-11-14 Thread Charles Zealey 

Christoph Berendes wrote:


Asad Habib wrote:

Has anyone successfully used htmltopdf, a PHP script written by Jason 
Rust (www.rustyparts.com) to convert an HTML file to PDF, with Zope? 
In particular, I wanted to find out if anyone had used the python 
equivalent of this PHP script.




We've been looking into this recently. Raw notes on various tools and 
links below, first on HTML to pdf/ps, and then on HTML to image 
(jpeg/png) directly, which is ultimately what we need to do.



The main thing is that many of the html to ps/pdf tools don't handle 
CSS well, if at all. The big exception there is shown (with a live 
demo) at http://www.tufat.com/script19.htm. It's fabulous - handles 
pages from csszengarden quite well.


At the moment, we're going with a simpler approach to our problem 
(watermarks), but if we went the HTML to PDF/image route, I'd look at 
the tufat.com script, or the approach noted at the hackdiary.com link.



HTML TO PDF/PS CONVERSION
"html2ps":http://user.it.uu.se/~jan/html2ps.html

"html to pdf in php":http://www.rustyparts.com/pdf.php

"python script for html to pdf 
conversion":http://www.rustyparts.com/scripts/HTML_ToPDF/contrib/html2pdf.py 



"html2doc":http://www.easysw.com/htmldoc , a proprietary tool

"denature":http://denature.sourceforge.net/, html to pdf via xsl/fo in 
Perl


other "html to pdf":http://tinyurl.com/a8u7q tools at Freshmeat


Zope cookbook has a "recipe":http://zopelabs.com/cookbook/1069611008
using (yum-able) 
"recode":http://www.gnu.org/software/recode/recode.html and 
"html2doc":http://www.htmldoc.org/ aka a "product from 
ESP":http://www.easysw.com/htmldoc/ (under GNU license)


* there's also the apparently very simple
"ZpdfDocument":http://www.zope.org/Members/gaaros/ZpdfDocument





There is a "php version of html2ps":http://www.tufat.com/script19.htm 
which handles background images, e.g. from here 
"http://www.netmechanic.com/news/vol5/HTMLTest_background.htm":http://www.netmechanic.com/news/vol5/HTMLTest_background.htm 




HTML TO IMAGE CONVERSION

* "html2jpg":http://freshmeat.net/projects/html2jpg/ "project 
page":http://marginalhacks.com/Hacks/html2jpg/ (requires mozilla)


* "khtml2png":http://directory.fsf.org/webauth/misc/khtml2png.html 
(not maintained) also used 
"here":http://www.michaelhoover.org/work/2004/07/khtml2png.html


* "another python-based 
app":http://www.hackdiary.com/archives/55.html(may be the most 
promising)"http://www.pygtk.org/":http://www.pygtk.org/


* "webkit2png":http://www.paulhammond.org/webkit2png/


* "Easy capture":http://www.perturb.org/display/entry/728/ for the PHP 
environment (not HTML, just images)


* "HTML/CSS/javascript 
approach":http://www.electropubs.com/watermark_install.htm



* using "PHP and GD":http://www.sitepoint.com/print/watermark-images-php
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I've been using the htmldoc route for ages now.  Bit limited in that 
it's HTML 3 but works fine for me.


Charles
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Re: [Zope] htmltopdf

2005-11-14 Thread Christoph Berendes 

Asad Habib wrote:

Has anyone successfully used htmltopdf, a PHP script written by Jason 
Rust (www.rustyparts.com) to convert an HTML file to PDF, with Zope? 
In particular, I wanted to find out if anyone had used the python 
equivalent of this PHP script.



We've been looking into this recently. Raw notes on various tools and 
links below, first on HTML to pdf/ps, and then on HTML to image 
(jpeg/png) directly, which is ultimately what we need to do.



The main thing is that many of the html to ps/pdf tools don't handle CSS 
well, if at all. The big exception there is shown (with a live demo) at 
http://www.tufat.com/script19.htm. It's fabulous - handles pages from 
csszengarden quite well.


At the moment, we're going with a simpler approach to our problem 
(watermarks), but if we went the HTML to PDF/image route, I'd look at 
the tufat.com script, or the approach noted at the hackdiary.com link.



HTML TO PDF/PS CONVERSION
"html2ps":http://user.it.uu.se/~jan/html2ps.html

"html to pdf in php":http://www.rustyparts.com/pdf.php

"python script for html to pdf 
conversion":http://www.rustyparts.com/scripts/HTML_ToPDF/contrib/html2pdf.py


"html2doc":http://www.easysw.com/htmldoc , a proprietary tool

"denature":http://denature.sourceforge.net/, html to pdf via xsl/fo in Perl

other "html to pdf":http://tinyurl.com/a8u7q tools at Freshmeat


Zope cookbook has a "recipe":http://zopelabs.com/cookbook/1069611008
using (yum-able) "recode":http://www.gnu.org/software/recode/recode.html 
and "html2doc":http://www.htmldoc.org/ aka a "product from 
ESP":http://www.easysw.com/htmldoc/ (under GNU license)


* there's also the apparently very simple
"ZpdfDocument":http://www.zope.org/Members/gaaros/ZpdfDocument





There is a "php version of html2ps":http://www.tufat.com/script19.htm 
which handles background images, e.g. from here 
"http://www.netmechanic.com/news/vol5/HTMLTest_background.htm":http://www.netmechanic.com/news/vol5/HTMLTest_background.htm



HTML TO IMAGE CONVERSION

* "html2jpg":http://freshmeat.net/projects/html2jpg/ "project 
page":http://marginalhacks.com/Hacks/html2jpg/ (requires mozilla)


* "khtml2png":http://directory.fsf.org/webauth/misc/khtml2png.html (not 
maintained) also used 
"here":http://www.michaelhoover.org/work/2004/07/khtml2png.html


* "another python-based 
app":http://www.hackdiary.com/archives/55.html(may be the most 
promising)"http://www.pygtk.org/":http://www.pygtk.org/


* "webkit2png":http://www.paulhammond.org/webkit2png/


* "Easy capture":http://www.perturb.org/display/entry/728/ for the PHP 
environment (not HTML, just images)


* "HTML/CSS/javascript 
approach":http://www.electropubs.com/watermark_install.htm



* using "PHP and GD":http://www.sitepoint.com/print/watermark-images-php
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[Zope] htmltopdf

2005-11-14 Thread Asad Habib 
Has anyone successfully used htmltopdf, a PHP script written by Jason Rust 
(www.rustyparts.com) to convert an HTML file to PDF, with Zope? In 
particular, I wanted to find out if anyone had used the python equivalent 
of this PHP script. I am currently in the process of trying this and if 
anyone has already done it, their input/help would be appreciated. Thanks.


- Asad
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Re: [Zope] Re: version of the Zope book with user comments included?

2005-11-14 Thread michael nt milne 
Thanks. Strangely, the comments only display when the comments are set to off...in IE6 and also latest Firefox.On 11/14/05, Michael Haubenwallner <
[EMAIL PROTECTED]> wrote:michael nt milne wrote:> Hi>  I remember seeing a version of the Zope book which also had user comments
> included. It was very useful. However I haven't been able to find this again> using Google. Does anyone have the link. I found it brilliant for issues> that cropped up on install.>  Thanks
>The books linked at http://www.zope.org/Documentation/Books/ZopeBook/have user comments switched off since last week  - click the COM OFF/ON
icon in the navbar to show/hide comments again.Michael--http://zope.org/Members/d2mhttp://planetzope.org___
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 )
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[Zope] Re: version of the Zope book with user comments included?

2005-11-14 Thread Michael Haubenwallner 

michael nt milne wrote:


Hi
 I remember seeing a version of the Zope book which also had user comments
included. It was very useful. However I haven't been able to find this again
using Google. Does anyone have the link. I found it brilliant for issues
that cropped up on install.
 Thanks



The books linked at http://www.zope.org/Documentation/Books/ZopeBook/
have user comments switched off since last week  - click the COM OFF/ON 
icon in the navbar to show/hide comments again.


Michael

--
http://zope.org/Members/d2m
http://planetzope.org

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[Zope] version of the Zope book with user comments included?

2005-11-14 Thread michael nt milne 
Hi
 
I remember seeing a version of the Zope book which also had user comments included. It was very useful. However I haven't been able to find this again using Google. Does anyone have the link. I found it brilliant for issues that cropped up on install.

 
Thanks
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[Zope] Zope Cookbook????

2005-11-14 Thread Vivek Krishna 
Hi ,
  I am considering using zope to build a sample applicaiton like a
guestbook and shopping cart
kind of application. I really looked for all documentation but couldnt
find a cookbook which does a step by step introduction to ahceive
this.Is there some resource like this? Besides I am
a new to python.Is python scripting required to build something as
simple as a guestbook? Or would you recommend me to use something like
PHP/Perl. I installed zope and read some docs but all I find is
objects,aquisition and details about ZMI.
If someone could help or point to some resources  or probably say that
Zope is not needed for this I would be grateful.
Thanks
vivek
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[Zope] Re: Zope Cookbook????

2005-11-14 Thread Michael Haubenwallner 

Vivek Krishna wrote:


Hi ,
  I am considering using zope to build a sample applicaiton like a
guestbook and shopping cart
kind of application. I really looked for all documentation but couldnt
find a cookbook which does a step by step introduction to ahceive
this.Is there some resource like this? Besides I am
a new to python.Is python scripting required to build something as
simple as a guestbook? Or would you recommend me to use something like
PHP/Perl. I installed zope and read some docs but all I find is
objects,aquisition and details about ZMI.
If someone could help or point to some resources  or probably say that
Zope is not needed for this I would be grateful.
Thanks
vivek


When you access your local zope instance like http://localhost:8080/
you see the default 'Zope QuickStart' document with a list of useful 
information and links to helful resources.


One of the point says: "Import and then check out the new example Zope 
applications. These examples show you simple working Zope applications 
that you can copy and modify"


Just click the 'Import' link and look into the newly created 'Examples' 
folder in ZMI.


It features working example projects like a FileLibry, a GuestBook, a 
Navigation tool and a ShoppingCart -- check out the sources and browse 
the recent ZopeBook at http://www.plope.com/Books/2_7Edition for more 
information.


Michael

--
http://zope.org/Members/d2m
http://planetzope.org

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