Re: [Zope] zeo clients not synchronized, modifications not shown
Hi Christopher, Great pointers, thank you very much for your response! I use pound for load balancing (from the beginning - nothing changed here). I will investigate using your indications. Thanks again, Dragos On Thu, Nov 5, 2015 at 2:03 PM, Christopher Lozinski < lozin...@freerecruiting.com> wrote: > > > On 11/5/15 12:29 PM, Dragos Chirila wrote: > > My impression is that the save itself is handled by lets say client1 > > and then the redirect and render of the edit page by a different one - > > client2. > I don't know what is going on, but let me ask a few obvious questions. > How do you assign web requests to zeo clients. If the redirect is > handled by a different zeo client, then maybe it has not gotten the > cache invalidation. Maybe in your web page display, you can display the > process id, to verify if indeed it is a different zeo client which is > the source of the problem. At that point, put some logging into the > cache invalidations to see if they are happening > correctly, and before the new page is redisplayed. Of do something on > your load balancer to make sure that each ip is served by the same zeo > client. > > And why did the problem suddenly start happening? Wierd. > > Hope that helps. > -- Dragos Chirila objectval...@gmail.com (+4) 0722 395375 ___ Zope maillist - Zope@zope.org https://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] zeo clients not synchronized, modifications not shown
Hi there, I have in production a Zope server from many years now: - Zope 2.11.4-final, python 2.4.6 - 2.4.6 - ZEO with 3 clients via sockets on the same machine - running a custom CMS (not Plone based) Last weekend, without touching the server or the code, a strange problem starting to occur and is repeating since: - when I try to modify an object (e.g. only the title) the saved data is not available in the browser after that. If I look in the ZMI the transaction is there. If I refresh the page the modification appears - also happens on an add or a delete (the object is deleted bu still appears in the listing) My impression is that the save itself is handled by lets say client1 and then the redirect and render of the edit page by a different one - client2. I tried different things: 1. pack data fs and restart all clients and zeo 2. if i try to change the title of the object via ZMI Properties tab it works fine - I always see the changes. On our CMS edit page we do an explicit recatalog of the object after the save. I thought maybe the catalog is broken somehow so I updated it - problem still there. 3. I checked the data fs with fstest.py, also checked for broken BTreeFolders - no issues detected. 4. I put the production database on a development server without zeo, just a single zope instance - everything works just fine. So, I can reproduce the problem but now clue so far about the cause. Any idea on how to handle and fix this? Anything will be highly appreciated. Thank you, Dragos -- Dragos Chirila objectval...@gmail.com (+4) 0722 395375 ___ Zope maillist - Zope@zope.org https://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] charset problems (utf-8)
Hi, You have to make sure that everything has the same encoding (strings, text values). I recomend you to convert everything to unicode and then put something like below as a first line in your page: and in the HEAD HTH, Dragos On Mon, Feb 6, 2012 at 2:38 PM, Hugo Ramos wrote: > I guess no one has charset problems... > > > > On Thu, Feb 2, 2012 at 6:06 PM, Hugo Ramos wrote: > > Yellow, > > > > I've noticed charset problems displaying HTML pages. > > > > Let's say I want to display a page using a DTML Method like this: > > > > > > > > ... > > > > > > > > á Á à À ç > > > > > > > > This page is ok and I can see the portuguese letters fine. > > > > The problem starts when I do this: > > > > > > > > ... > > > > > > > > á Á à À ç > > > > > > > > > > The first line of characters shows some strange characters and the > > sometextfield shows up fine even if it has the same portuguese > > characters. > > > > > > sometextfield comes from a mySQL server using utf-8 as charset and > collation. > > > > zope.conf has the following: > > > > rest-input-encoding utf-8 > > rest-output-encoding utf-8 > > > > The browsers also have UTF-8 as the encoding (safari, firefox and > > chrome) all show me the same problem. > > > > I also noticed some strange behavior... > > If I create "á Á à À ç" as a property field using ustring and call it > > as also gets fine in the browser. > > > > Anyone seen this??? Double encoding maybe??? > > > > > > TIA > > > > -- > > Hugo Ramos - IT Project Manager > > E: ram...@gmail.com > > W: www.hugoramos.eu > > > > "Nobody expects the Spanish Inquisition!" - Monty Python's > > > > Para visualizar este email em 3D, bata com uma bola de snooker na > > testa e fixe o ecrã durante 5 minutos a uma distância de 20cm. > > > > -- > Hugo Ramos - IT Project Manager > E: ram...@gmail.com > W: www.hugoramos.eu > > "Nobody expects the Spanish Inquisition!" - Monty Python's > > Para visualizar este email em 3D, bata com uma bola de snooker na > testa e fixe o ecrã durante 5 minutos a uma distância de 20cm. > ___ > Zope maillist - Zope@zope.org > https://mail.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > https://mail.zope.org/mailman/listinfo/zope-announce > https://mail.zope.org/mailman/listinfo/zope-dev ) > -- Dragos Chirila objectval...@gmail.com (+4) 0722 395375 ___ Zope maillist - Zope@zope.org https://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] Strange Cut/Paste or Copy/Paste or Import/Export behavior
Hi all,
I have to containers old_container and new_container that accept objects of
the same type. The two containers are actually instances of different
classes in the same product.
I want to move all the objects from old_container to new_container. I have
tried with only one object:
1. To move it with a simple Cut/Paste operation through ZMI: the object is
moved successfully, but has missing properties
2. I have used Import/Export to move the same object: the object is imported
successfully, but also has missing properties
3. Even tried a simple Copy/Paste: same result, no errors but missing
properties
Basically, the code for the object to be moved is like this:
class Country(Discussion, Folder):
_properties = (
Discussion._properties
+
(
{'id': 'body', 'type': 'text', 'mode': 'w'},
)
)
def __init__(self, id, title, body, comments, flg_notify):
self.id = id
self.title = title
self.body = body
Discussion.__dict__['__init__'](self, comments, flg_notify)
def check_properties(self):
""" """
print hasattr(self, 'body')
print hasattr(self, 'comments')
and
class Discussion:
_properties = (
(
{'id': 'comments', 'type': 'int', 'mode': 'w'},
{'id': 'flg_notify', 'type': 'int', 'mode': 'w'},
)
)
def __init__(self, comments, flg_notify):
self.comments = comments
self.flg_notify = flg_notify
If i run the method check_properties before move/copy/import it prints
True+True. After step 1/2/3 the result is True+False. So the missing
property is 'comments', that comes from the extended class Discussion. If a
I trie to acces the Propeties tab, manage_propertiesForm method, I get:
Traceback (innermost last):
Module ZPublisher.Publish, line 119, in publish
Module ZPublisher.mapply, line 88, in mapply
Module ZPublisher.Publish, line 42, in call_object
Module Shared.DC.Scripts.Bindings, line 313, in __call__
Module Shared.DC.Scripts.Bindings, line 350, in _bindAndExec
Module App.special_dtml, line 178, in _exec
Module DocumentTemplate.DT_In, line 703, in renderwob
Module DocumentTemplate.DT_Let, line 76, in render
Module DocumentTemplate.DT_Util, line 196, in eval
- __traceback_info__: id
Module , line 0, in ?
Module OFS.PropertyManager, line 151, in getProperty
AttributeError: comments
Am I doing something wrong? Any idea is highly appreciated.
Thank you very much,
Dragos
--
Dragos Chirila
objectval...@gmail.com
(+4) 0722 395375
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Re: [Zope] zope2 2.12 installation on Windows 7
Hi Tres, I have upgraded to 2.12.10 and everything works great! Thank you very much, Dragos On Wed, Sep 8, 2010 at 2:36 PM, Tres Seaver wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > Dragos Chirila wrote: > > Hi everybody, > > > > I'm having some problems when I have to run a zope2 2.12 instance. Here > are > > the steps: > > > > 1. fresh install of Python 2.6.3 - python-2.6.3.msi > > 2. install pywin - pywin32-214.win32-py2.6.exe > > 3. install setup tools - setuptools-0.6c11.win32-py2.6.exe > > 4. install Zope2 using easy_install from egg - > Zope2-2.12.0-py2.6-win32.egg > > 5. create a new instance using mkzopeinstance.exe > > > > Until here, everything worked great. Now , I modify the zope.conf to turn > > the debug on and try to run the created instance. Here is the error that > I > > receive: > > > > > I took the above steps twice, second time after removing everything and > > still got the same error. I do not install any additional zope product or > > python package, just using the zope2 installation. > > > > I will appreciate any hints or ideas on this problem. > > Your traceback shows conflicting ZCML registrations between the version > of zope.formlib you are using (4.0.4, very recent) and the version of > Zope2 you are using (2.12.0, much older). Please try updating to the > latest version of Zope2 (2.12.10), which pins the zope.formlib > dependency to version 3.7.0. E.g.: > > bin\easy_install -U Zope2 > > You may need to remove the zope.formlib 4.0.4 egg first. > > > Tres. > - -- > === > Tres Seaver +1 540-429-0999 tsea...@palladion.com > Palladion Software "Excellence by Design"http://palladion.com > -BEGIN PGP SIGNATURE- > Version: GnuPG v1.4.9 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iEYEARECAAYFAkyHdSoACgkQ+gerLs4ltQ7dQACeMi/lnLrOFBUnuEvKKQkVC+UH > RSMAn00W+A3iQZCpKn99hLAsDzFKmAKv > =X4x9 > -END PGP SIGNATURE- > > ___ > Zope maillist - Zope@zope.org > https://mail.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > https://mail.zope.org/mailman/listinfo/zope-announce > https://mail.zope.org/mailman/listinfo/zope-dev ) > -- Dragos Chirila objectval...@gmail.com (+4) 0722 395375 ___ Zope maillist - Zope@zope.org https://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] zope2 2.12 installation on Windows 7
ile(file)
File
"D:\PythonFarms\Python263\lib\site-packages\zope.configuration-3.7.2-py2.
6.egg\zope\configuration\xmlconfig.py", line 653, in file
context.execute_actions()
File
"D:\PythonFarms\Python263\lib\site-packages\zope.configuration-3.7.2-py2.
6.egg\zope\configuration\config.py", line 600, in execute_actions
for action in resolveConflicts(self.actions):
File
"D:\PythonFarms\Python263\lib\site-packages\zope.configuration-3.7.2-py2.
6.egg\zope\configuration\config.py", line 1507, in resolveConflicts
raise ConfigurationConflictError(conflicts)
zope.configuration.config.ConfigurationConflictError: Conflicting
configuration
actions
For: ('adapter', (,),
, u'render')
File "D:\PythonFarms\Python263\lib\site-packages\
zope.formlib-4.0.4-py2.6.eg
g\zope\formlib\configure.zcml", line 19.2-19.64
File "D:\PythonFarms\Python263\lib\site-packages\
zope2-2.12.0-py2.6-win32.eg
g\Products\Five\formlib\configure.zcml", line 6.2-9.8
For: ('adapter', (,
), , '')
File "D:\PythonFarms\Python263\lib\site-packages\
zope.formlib-4.0.4-py2.6.eg
g\zope\formlib\configure.zcml", line 22.2-25.8
File "D:\PythonFarms\Python263\lib\site-packages\
zope2-2.12.0-py2.6-win32.eg
g\Products\Five\formlib\configure.zcml", line 12.2-17.8
I took the above steps twice, second time after removing everything and
still got the same error. I do not install any additional zope product or
python package, just using the zope2 installation.
I will appreciate any hints or ideas on this problem.
Thank you very much,
Dragos
--
Dragos Chirila
objectval...@gmail.com
(+4) 0722 395375
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Re: [Zope] Get raw data (byte array) from flash in Zope
Hi,
The solution is very simple :)
Instead of sending the byte array like in the example, just encode it
as a string and send it in a variable using POST:
- base64 - this doesn;t works all the time... i don't know why
- bin to hex - works all the time
The server side code is like this:
img = REQUEST.form.get('picture', None)
if img is not None and img != '':
img = binascii.unhexlify(img)
img = PIL.Image.open(StringIO(img))
img.save(join(..., 'picture.jpg'))
We made tests with a lot of images, even with images of 10MB size. It works...
Dragos
On Wed, Nov 25, 2009 at 8:30 PM, Dragos Chirila wrote:
> The data is actually received by Zope, but its broken into "pieces".
>
> Please find a sample of the REQUEST.form here
> http://media.fourhooks.ro/request_form.jpg
>
> Any hints on how to put the image back together?
>
>
> On Wed, Nov 25, 2009 at 4:58 PM, Dragos Chirila
> wrote:
>> Doesn't work: AttributeError: BODYFILE
>>
>>
>> On Wed, Nov 25, 2009 at 1:59 PM, Stefan H. Holek wrote:
>>> Try REQUEST.BODYFILE
>>>
>>>
>>> On 25.11.2009, at 12:30, Dragos Chirila wrote:
>>>
>>>> The question is: how can I get this data on the server side in Zope?
>>>> Becasue:
>>>>
>>>> - REQUEST.form is empty
>>>> - HTTP_RAW_POST_DATA is missing
>>>> - there is no other key or value in the REQUEST to indicate the value
>>>> I am looking for
>>>
>>> --
>>> Stefan H. Holek
>>> ste...@epy.co.at
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>> --
>> Dragos Chirila
>> objectval...@gmail.com
>> (+4) 0722 395375
>>
>
>
>
> --
> Dragos Chirila
> objectval...@gmail.com
> (+4) 0722 395375
>
--
Dragos Chirila
objectval...@gmail.com
(+4) 0722 395375
___
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Re: [Zope] Get raw data (byte array) from flash in Zope
The data is actually received by Zope, but its broken into "pieces". Please find a sample of the REQUEST.form here http://media.fourhooks.ro/request_form.jpg Any hints on how to put the image back together? On Wed, Nov 25, 2009 at 4:58 PM, Dragos Chirila wrote: > Doesn't work: AttributeError: BODYFILE > > > On Wed, Nov 25, 2009 at 1:59 PM, Stefan H. Holek wrote: >> Try REQUEST.BODYFILE >> >> >> On 25.11.2009, at 12:30, Dragos Chirila wrote: >> >>> The question is: how can I get this data on the server side in Zope? >>> Becasue: >>> >>> - REQUEST.form is empty >>> - HTTP_RAW_POST_DATA is missing >>> - there is no other key or value in the REQUEST to indicate the value >>> I am looking for >> >> -- >> Stefan H. Holek >> ste...@epy.co.at >> >> >> >> >> > > > > -- > Dragos Chirila > objectval...@gmail.com > (+4) 0722 395375 > -- Dragos Chirila objectval...@gmail.com (+4) 0722 395375 ___ Zope maillist - Zope@zope.org https://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Get raw data (byte array) from flash in Zope
Doesn't work: AttributeError: BODYFILE On Wed, Nov 25, 2009 at 1:59 PM, Stefan H. Holek wrote: > Try REQUEST.BODYFILE > > > On 25.11.2009, at 12:30, Dragos Chirila wrote: > >> The question is: how can I get this data on the server side in Zope? >> Becasue: >> >> - REQUEST.form is empty >> - HTTP_RAW_POST_DATA is missing >> - there is no other key or value in the REQUEST to indicate the value >> I am looking for > > -- > Stefan H. Holek > ste...@epy.co.at > > > > > -- Dragos Chirila objectval...@gmail.com (+4) 0722 395375 ___ Zope maillist - Zope@zope.org https://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] Get raw data (byte array) from flash in Zope
Hello everyone, I have a question about how to get raw data sent by a flash application in Zope (a zope method/function). The flash application uses the method in the link below to send to the server an image (jpg): http://www.zedia.net/2008/sending-bytearray-and-variables-to-server-side-script-at-the-same-time/ Searching through the internet I have found a PHP example that gets this byte array sent from flash: http://blog.joa-ebert.com/2006/05/01/save-bytearray-to-file-with-php/ They are getting the date form a header called HTTP_RAW_POST_DATA. The question is: how can I get this data on the server side in Zope? Becasue: - REQUEST.form is empty - HTTP_RAW_POST_DATA is missing - there is no other key or value in the REQUEST to indicate the value I am looking for On my local devel machine I managed to find a solution: - using Zope 2.10.3 I have enabled use-wsgi (on) (without apache) - in zope, the method called from flash is something like this: ... v = REQUEST.environ['wsgi.input'] v.seek(0) f = open(join(SOME_PATH, 'image.jpg'), 'wb') f.write(v.read()) f.close() return '1' This solution doesn't work on the production environment - Zope 2.11.4 with ZEO (pound and apache in the front of zope as load balancer and web server). Is there a way to solve this problem? Any idea is highly appreciated. Thank you very much, Dragos -- Dragos Chirila objectval...@gmail.com (+4) 0722 395375 ___ Zope maillist - Zope@zope.org https://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] strange database read conflict error
Ooops, paste it the wrong link below the URL of the object with conflicts is http://metropotam.ro/Opera/loc4769172835-Ateneul-Roman/ On Fri, Aug 28, 2009 at 2:47 PM, Dragos Chirila wrote: > All objects as the same type of this one that generates conflicts are > displayed using the same template that contains the same elements (js, > images, etc.). > > I can access any object in the same folder > (http://metropotam.ro/Opera/) and I will get no read conflicts (e.g. > http://metropotam.ro/Opera/loc8982879061-Sala-Palatului/). I have > conflicts when I access this particular object > http://metropotam.ro/Opera/loc8982879061-Sala-Palatului/. > > If the problem is related with some piece of code I can't find any > logical explanation for this behavior. ... or maybe I am looking in > the wrong place. > > Also, told you before, I even erased the object from the Data.fs and > then packed it. Conflicts stopped. After I have created a new object > and rename it with the old id the conflicts showed up again... > > Thanks, > Dragos > > > > On Fri, Aug 28, 2009 at 2:37 PM, Peter Bengtsson wrote: >> 2009/8/28 Dragos Chirila : >>> Peter, >>> >>> Than you for your response. Please find below a few things: >>> >>> - I give up using sessions in the website's front and years ago :) >>> There is only one page left that is using them, when u subscribe to >>> our newsletter but I don't think that this affects because is used >>> rarely >>> >> It might be used anyway. It'll be empty (except the >> subscribe-to-newsletter page) all the time but it might still be in >> use. >> I think there is always a REQUEST.SESSION object. >> >>> - I am using Yahoo Maps Ajax API to display maps; also some ajax calls >>> for our build in chat (only for logged users) >> That's unrelated. Yahoo! isn't using ZODB. >> >>> >>> So if the things above are causing read conflicts why only for this >>> particular object? There is nothing special or different with this >>> one... >>> >> It could be some other piece of code that tries to read from ZODB more >> than once and whatever it's trying to read might be something slow >> (slow for a computer). >> >> Have you tried running ZopeProfiler on your site to figure out if >> there are certain (ZO)DB related functions that are called either many >> many times or few but slow times. >> >>> Thanks again, >>> Dragos >>> >>> On Fri, Aug 28, 2009 at 12:19 PM, Peter Bengtsson wrote: >>>> The fact that the class is Products.Transience.Transience.Increaser >>>> makes me suspect that you're using sessions and within the same >>>> session you make too many read requests to the ZODB. When the load is >>>> too high, after a certain amount of attempts Zope will say, "piss off! >>>> ...for a while and come back later". So it comes back later and works >>>> fine. >>>> Are you using lots of AJAX requests? That can sometimes cause read >>>> conflict errors. >>>> >>>> 2009/8/28 Dragos Chirila : >>>>> Hello everyone, >>>>> >>>>> I have a question regarding a database read conflict error. I would >>>>> appreciate any thoughts on this issue. >>>>> >>>>> I am using Zope 2.8.9.1-final, Python 2.3.7 with a ZEO server and 4 >>>>> clients for 6 months now. I have noticed that the event.log is filled >>>>> with read conflict errors like the one below: >>>>> >>>>> 2009-08-28T10:29:26 INFO ZODB.Conflict database read conflict error >>>>> (oid 0x09, class Products.Transience.Transience.Increaser) at >>>>> /VirtualHostBase/http/metropotam.ro:80/metropotam/VirtualHostRoot/Opera/loc4769172835-Ateneul-Roman/ >>>>> (21 conflicts, of which 0 were unresolved, since startup at Thu Aug 27 >>>>> 15:25:02 2009) >>>>> >>>>> This URL of the object is >>>>> http://metropotam.ro/Opera/loc4769172835-Ateneul-Roman . We have >>>>> around 2000 objects of the same type and this is *the only one* that >>>>> generates read conflict errors. >>>>> >>>>> I have tried a few things: >>>>> >>>>> 1. Edit object and recatalog it >>>>> 2. Rename it >>>>> 3. Delete object, pack database, create a new object and then rename >>>>> it to keep the URL aliv
Re: [Zope] strange database read conflict error
All objects as the same type of this one that generates conflicts are displayed using the same template that contains the same elements (js, images, etc.). I can access any object in the same folder (http://metropotam.ro/Opera/) and I will get no read conflicts (e.g. http://metropotam.ro/Opera/loc8982879061-Sala-Palatului/). I have conflicts when I access this particular object http://metropotam.ro/Opera/loc8982879061-Sala-Palatului/. If the problem is related with some piece of code I can't find any logical explanation for this behavior. ... or maybe I am looking in the wrong place. Also, told you before, I even erased the object from the Data.fs and then packed it. Conflicts stopped. After I have created a new object and rename it with the old id the conflicts showed up again... Thanks, Dragos On Fri, Aug 28, 2009 at 2:37 PM, Peter Bengtsson wrote: > 2009/8/28 Dragos Chirila : >> Peter, >> >> Than you for your response. Please find below a few things: >> >> - I give up using sessions in the website's front and years ago :) >> There is only one page left that is using them, when u subscribe to >> our newsletter but I don't think that this affects because is used >> rarely >> > It might be used anyway. It'll be empty (except the > subscribe-to-newsletter page) all the time but it might still be in > use. > I think there is always a REQUEST.SESSION object. > >> - I am using Yahoo Maps Ajax API to display maps; also some ajax calls >> for our build in chat (only for logged users) > That's unrelated. Yahoo! isn't using ZODB. > >> >> So if the things above are causing read conflicts why only for this >> particular object? There is nothing special or different with this >> one... >> > It could be some other piece of code that tries to read from ZODB more > than once and whatever it's trying to read might be something slow > (slow for a computer). > > Have you tried running ZopeProfiler on your site to figure out if > there are certain (ZO)DB related functions that are called either many > many times or few but slow times. > >> Thanks again, >> Dragos >> >> On Fri, Aug 28, 2009 at 12:19 PM, Peter Bengtsson wrote: >>> The fact that the class is Products.Transience.Transience.Increaser >>> makes me suspect that you're using sessions and within the same >>> session you make too many read requests to the ZODB. When the load is >>> too high, after a certain amount of attempts Zope will say, "piss off! >>> ...for a while and come back later". So it comes back later and works >>> fine. >>> Are you using lots of AJAX requests? That can sometimes cause read >>> conflict errors. >>> >>> 2009/8/28 Dragos Chirila : >>>> Hello everyone, >>>> >>>> I have a question regarding a database read conflict error. I would >>>> appreciate any thoughts on this issue. >>>> >>>> I am using Zope 2.8.9.1-final, Python 2.3.7 with a ZEO server and 4 >>>> clients for 6 months now. I have noticed that the event.log is filled >>>> with read conflict errors like the one below: >>>> >>>> 2009-08-28T10:29:26 INFO ZODB.Conflict database read conflict error >>>> (oid 0x09, class Products.Transience.Transience.Increaser) at >>>> /VirtualHostBase/http/metropotam.ro:80/metropotam/VirtualHostRoot/Opera/loc4769172835-Ateneul-Roman/ >>>> (21 conflicts, of which 0 were unresolved, since startup at Thu Aug 27 >>>> 15:25:02 2009) >>>> >>>> This URL of the object is >>>> http://metropotam.ro/Opera/loc4769172835-Ateneul-Roman . We have >>>> around 2000 objects of the same type and this is *the only one* that >>>> generates read conflict errors. >>>> >>>> I have tried a few things: >>>> >>>> 1. Edit object and recatalog it >>>> 2. Rename it >>>> 3. Delete object, pack database, create a new object and then rename >>>> it to keep the URL alive >>>> 4. checked the data.fs and got no errors (fstest.py) >>>> >>>> None of the above solved the problem; I still get a lot of conflicts. >>>> >>>> Is there a way to fix this? I found it very strange that I get >>>> conflicts only for this object and for no other of the same type, even >>>> in the same folder... >>>> >>>> Thank you, >>>> Dragos Chirila >>>> ___ >>>> Zope maillist - Zope@zope.org >
Re: [Zope] strange database read conflict error
Peter, Than you for your response. Please find below a few things: - I give up using sessions in the website's front and years ago :) There is only one page left that is using them, when u subscribe to our newsletter but I don't think that this affects because is used rarely - I am using Yahoo Maps Ajax API to display maps; also some ajax calls for our build in chat (only for logged users) So if the things above are causing read conflicts why only for this particular object? There is nothing special or different with this one... Thanks again, Dragos On Fri, Aug 28, 2009 at 12:19 PM, Peter Bengtsson wrote: > The fact that the class is Products.Transience.Transience.Increaser > makes me suspect that you're using sessions and within the same > session you make too many read requests to the ZODB. When the load is > too high, after a certain amount of attempts Zope will say, "piss off! > ...for a while and come back later". So it comes back later and works > fine. > Are you using lots of AJAX requests? That can sometimes cause read > conflict errors. > > 2009/8/28 Dragos Chirila : >> Hello everyone, >> >> I have a question regarding a database read conflict error. I would >> appreciate any thoughts on this issue. >> >> I am using Zope 2.8.9.1-final, Python 2.3.7 with a ZEO server and 4 >> clients for 6 months now. I have noticed that the event.log is filled >> with read conflict errors like the one below: >> >> 2009-08-28T10:29:26 INFO ZODB.Conflict database read conflict error >> (oid 0x09, class Products.Transience.Transience.Increaser) at >> /VirtualHostBase/http/metropotam.ro:80/metropotam/VirtualHostRoot/Opera/loc4769172835-Ateneul-Roman/ >> (21 conflicts, of which 0 were unresolved, since startup at Thu Aug 27 >> 15:25:02 2009) >> >> This URL of the object is >> http://metropotam.ro/Opera/loc4769172835-Ateneul-Roman . We have >> around 2000 objects of the same type and this is *the only one* that >> generates read conflict errors. >> >> I have tried a few things: >> >> 1. Edit object and recatalog it >> 2. Rename it >> 3. Delete object, pack database, create a new object and then rename >> it to keep the URL alive >> 4. checked the data.fs and got no errors (fstest.py) >> >> None of the above solved the problem; I still get a lot of conflicts. >> >> Is there a way to fix this? I found it very strange that I get >> conflicts only for this object and for no other of the same type, even >> in the same folder... >> >> Thank you, >> Dragos Chirila >> ___ >> Zope maillist - Zope@zope.org >> https://mail.zope.org/mailman/listinfo/zope >> ** No cross posts or HTML encoding! ** >> (Related lists - >> https://mail.zope.org/mailman/listinfo/zope-announce >> https://mail.zope.org/mailman/listinfo/zope-dev ) >> > > > > -- > Peter Bengtsson, > work www.fry-it.com > home www.peterbe.com > hobby www.issuetrackerproduct.com > fun crosstips.org > -- Dragos Chirila objectval...@gmail.com (+4) 0722 395375 ___ Zope maillist - Zope@zope.org https://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] strange database read conflict error
Hello everyone, I have a question regarding a database read conflict error. I would appreciate any thoughts on this issue. I am using Zope 2.8.9.1-final, Python 2.3.7 with a ZEO server and 4 clients for 6 months now. I have noticed that the event.log is filled with read conflict errors like the one below: 2009-08-28T10:29:26 INFO ZODB.Conflict database read conflict error (oid 0x09, class Products.Transience.Transience.Increaser) at /VirtualHostBase/http/metropotam.ro:80/metropotam/VirtualHostRoot/Opera/loc4769172835-Ateneul-Roman/ (21 conflicts, of which 0 were unresolved, since startup at Thu Aug 27 15:25:02 2009) This URL of the object is http://metropotam.ro/Opera/loc4769172835-Ateneul-Roman . We have around 2000 objects of the same type and this is *the only one* that generates read conflict errors. I have tried a few things: 1. Edit object and recatalog it 2. Rename it 3. Delete object, pack database, create a new object and then rename it to keep the URL alive 4. checked the data.fs and got no errors (fstest.py) None of the above solved the problem; I still get a lot of conflicts. Is there a way to fix this? I found it very strange that I get conflicts only for this object and for no other of the same type, even in the same folder... Thank you, Dragos Chirila ___ Zope maillist - Zope@zope.org https://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] ExtFile 1.5.6 bug
Hi, I am experiencing a very strange problem; any thoughts or ideas will be highly appreciated. I am using ExtFile 1.5.6 product to store images and files in my application. During the publishing process, at some point, a rename of a container with images and files it is involved. From time to time this results in broken objects with 0 byes in size. My application runs on a Zope 2.7.6. On the other hand, I am running the same kind of publishing process on a Zope 2.10.4 with ExtFile 2.0 and this problem never occours. I noticed a line in the CHANGES.TXT file: - Bugfix: Exceptions at a late stage of a cut/paste operation could lead to data loss. Can this be the bug that affects my application when I use the ExtFile 1.5.6 product? Because a migration to a higher Zope version is out of the question right now, is there a fix for this problem? Or is there another way to overcome this? Thank you very much, Dragos -- Dragos Chirila [EMAIL PROTECTED] (+4) 0722 395375 ___ 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 )
[Zope] BTreeFolder2 related
Hi, What is the best way to delete all the objects inside an object derived from BTreeFolder2? Thank you very much, Dragos -- Dragos Chirila [EMAIL PROTECTED] (+4) 0722 395375 ___ 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 )
[Zope] metal:fill-slot and tal:condition
Hi everybody, I am stuck with the following problem. I would appreciate it very much if you could help me with it. So I have a ZPT where a macro is defined with several slots; one of the slots like below: SLOT DEFAULT CONTENT The common way to put other content in the slot is: CUSTOM SLOT CONTENT Now, in a ZPT that uses the above marco I want to replace the default slot content with other stuff *only* if a condition is fulfilled: CUSTOM SLOT CONTENT If the returns True then the "CUSTOM SLOT CONTENT" is put instead of the default slot content - correct. If the returns False then nothing will be displayed - this is not correct?!. I also tried somthing like: CUSTOM SLOT CONTENT In this case the content of the slot is "CUSTOM SLOT CONTENT" in both cases - the result is True or False. The only solution that I can think of is not elegant at all because I have to duplicate the slot_issue's default content: CUSTOM SLOT CONTENT SLOT DEFAULT CONTENT Is there other wat to accomplish this? Thank you very much, Dragos ___ 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 )
Re: [Zope] changing the meta_type for python product class
Hi!
Thank you very much for your response.
Ok, you are right, but if I do it why the ZMI is showing to me the new
meta type for both instances? This is wrong...
Also, I don't understand why if I explicit change the meta_type
property for the old instance (e.g. a method of MyClass that is called
via URL) still nothing happens?
I also tried to add the following lines to the MyClass:
_properties = (
Folder._properties
+
(
{'id': 'meta_type', 'type': 'string', 'mode': 'w'},
)
)
In the Properties tab for both instances the same value is shown for
the meta_type property.
Thank you very much once again for taking time to consider my problem.
Regards,
Dragos.
On 12/6/06, Dieter Maurer <[EMAIL PROTECTED]> wrote:
Dragos Chirila wrote at 2006-12-6 15:48 +0200:
> ...
>What I am trying to accomplish is to be able to change the meta_type
>value and this to work (e.g. with no effect on python scripts like
>'listing')
The best way is *NOT* to change the meta type (at least not when
you have places that require it unchanged).
Instead derive a new class from it and give this new class a new
meta_type.
--
Dieter
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Re: [Zope] Adding HTML to Python
if you are using ZPT to display the result of the method use 'structure', if you are usign DTML make sure you dont't encode the result if is plain text use new line character as I sad above. regards, Dragos On 12/6/06, April Lekin <[EMAIL PROTECTED]> wrote: Hi, I tried that and it will print the , like this These IDs have Errors: 1 46 76 45 At 09:43 AM 12/6/2006, Roberto Benitez wrote: add to the end of each line example: l_errorMessage = "These IDs have Errors" #ADD AT END OF HEADER LINE Loop l_errorMessage = l_errorMessage + " %s" % (ID) #ADD AT END OF EACH ID ENTRY end loop - Original Message From: April Lekin <[EMAIL PROTECTED]> To: zope@zope.org Sent: Wednesday, December 6, 2006 11:12:20 AM Subject: [Zope] Adding HTML to Python In Python I'm building this error message: l_errorMessage = "These IDs have Errors" Loop l_errorMessage = l_errorMessage + " %s " % (ID) end loop return l_errorMessage. How can I put breaks (returns) between the IDs so each ID will be displayed on it's own line? like: These IDs have Errors: 1 46 76 45 ___ 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 ) Everyone is raving about the all-new Yahoo! Mail beta. ___ 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 ) ___ 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 ) -- Dragos Chirila [EMAIL PROTECTED] (+4) 0722 395375 ___ 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 )
Re: [Zope] Adding HTML to Python
maybe you can try to add new lines l_errorMessage = l_errorMessage + " %s\n " % (ID) regards, Dragos On 12/6/06, April Lekin <[EMAIL PROTECTED]> wrote: In Python I'm building this error message: l_errorMessage = "These IDs have Errors" Loop l_errorMessage = l_errorMessage + " %s " % (ID) end loop return l_errorMessage. How can I put breaks (returns) between the IDs so each ID will be displayed on it's own line? like: These IDs have Errors: 1 46 76 45 ___ 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 ) ___ 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 )
[Zope] changing the meta_type for python product class
Hi everybody,
I am stuck with the following problem for witch I don't have a
solution. I would appreciate it very much if you could help me with
it.
I have a very simple Python product with only one class that extends
Folder. The name of the product is MyClass and the MyClass.py module
is below:
from OFS.Folder import Folder
from Products.PageTemplates.PageTemplateFile import PageTemplateFile
from constants import *
manage_addMyClass_html = PageTemplateFile('zpt/myclass_manage_add', globals())
def manage_addMyClass(self, id, title='', REQUEST=None):
""" """
ob = MyClass(id, title)
self._setObject(id, ob)
if REQUEST:
return self.manage_main(self, REQUEST, update_menu=1)
class MyClass(Folder):
""" """
meta_type = METATYPE_MYCLASS
def __init__(self, id, title):
#constructor
self.id = id
self.title = title
And the constants.py module contains:
import Globals
MYCLASS_PRODUCT_NAME = 'MyClass'
MYCLASS_PRODUCT_PATH = Globals.package_home(globals())
METATYPE_MYCLASS = 'My Class'
PERMISSION_ADD_MYCLASS = 'MyClass - Add Components'
In the ROOT folder I create the following python script (listing):
for x in container.objectValues(['My Class']):
print '[%s] - [%s]' % (x.meta_type, x.absolute_url())
return printed
Then I follow the steps:
1. Create an instance with the id 'instance1' (in the drop down I have
'My Class').
2. I run the 'listing' script and I get:
[My Class] - [http://10.0.0.37:8080/instance1]
3. I change the constant METATYPE_MYCLASS into 'My New Class'
4. I run the 'listing' script and I get:
[My New Class] - [http://10.0.0.37:8080/instance1]
5. I create a second instance with the id 'instance2' (in the drop
down I have 'My New Class').
6. I run the 'listing' script and I get:
[My New Class] - [http://10.0.0.37:8080/instance1]
7. I modify the python script by changing the 'My Class' with 'My New Class'
8. I run the 'listing' script and I get:
[My New Class] - [http://10.0.0.37:8080/instance2]
In the ZMI for both instances the meta_type 'My New Class' is
displayed. I don't understand why the first instance is not displayed
after I change the meta_type value in the python Product.
Moreover, if I try to explicit update the meta_type property for the
first instance to the new value, the result is the same.
What I am trying to accomplish is to be able to change the meta_type
value and this to work (e.g. with no effect on python scripts like
'listing')
Thank you very much,
Dragos
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Re: [Zope] batching help
Hi I suggest to use the following function that def get_grouped_list(self, seq=[], size=3): #get the list with all items grouped return [seq[i:i+size] for i in range(0, len(seq), size)] that takes as parameter a list and goups items in slices with length = size. >>> def get_grouped_list(seq=[], size=3): ... return [seq[i:i+size] for i in range(0, len(seq), size)] ... >>> l = [1,2,3,4,5,6,7,8] >>> get_grouped_list(l) [[1, 2, 3], [4, 5, 6], [7, 8]] >>> get_grouped_list(l, 4) [[1, 2, 3, 4], [5, 6, 7, 8]] >>> Then iterating this is something like: Hope this will help. Dragos Nicolas Georgakopoulos wrote: Hello all , I'm trying to display on the same page a table with (3 columns) with content from a list . I'm trying to batch the results so that every 3 elements anothe row is created. Can anyone give me a clue how to do that ? this is my code: Main Title Title 1Title 2Title 3 tal:replace="structure num"> content goes here.. ___ 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 ) -- Dragos Chirila Programmer, Finsiel Romania (http://www.finsiel.ro) 44A, Ficusului St. - 013975 Bucharest Tel: +40 21 2320193, Fax: +40 21 2329807 Jabber: [EMAIL PROTECTED] ___ 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 )
Re: [Zope] Character set problems
Hi
Here are some things you can do to handle your problem. For me, this
approach worked just fine.
1. Your HTML pages must have set the encoding to utf-8. Put this in the
HEAD tag of your html pages:
2. For the Root folder add a property named 'management_page_charset' of
type 'string' with the value 'utf-8'. In this way the ZMI pages will be
displayed with utf-8 encoding.
3. Modify your HTML code like this:
If 'test' is also a property of some object, make sure it has 'ustring'
type.
After that the value will be displayed correctly in all pages.
Note: If your Zope runs over an Apache you must check also the Apache
settings (to serve pages utf-8 encoded)
Hope this will help.
Regards,
Dragos
Niklas Saers wrote:
Hey guys,
I've installed Zope on a FreeBSD server. My problem domain is very
small: display a list of when people are unavailable, and let people
update the list. This is all in Danish, and here are come my problems.
Danish has three extra letters not in the ASCII alfabet, three
upper-case and three lower-case. When getting the data from a name="test" /> where I've written "æ ø å Æ Ø Å", I get: æ ø Ã¥ Æ Ø Ã…
What is the standard way of ensuring that I get the correct data?
I tried writing a little converter, but the string
tekst = tekst.replace("\xc3\xa6", "ae");
gives me the error *UnicodeDecodeError: **'ascii' codec can't decode
byte 0xc3 in position 0: ordinal not in range(128)*
Do you have any suggestion on how to overcome these problems?
Cheers
Nik
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[Zope] Multilingual content class with LocalPropertyManager
Hi
I want to build a multilingual content class with LocalPropertyManager
from the Localizer product. Also, my class extends the File class,
something like:
class MClass(LocalPropertyManager, File):
title = LocalProperty('title')
description = LocalProperty('description')
def __init__(self, id, title, description, file, precondition,
content_type, lang):
File.__dict__['__init__'](self, id, title, file, content_type,
precondition)
self._setLocalPropValue('title', lang, title)
self._setLocalPropValue('description', lang, description)
The problem is that everytime I call the title property it doesn't
return the LocalProperty 'title', but instead it returns the value
entered when the object was created.
From a ZPT, if lang is the current selected language and is 'en':
- don't get the correct value for the
selected language
-
correct value
Not event after editing the object properties, the 'title' value remains
the same: the value entered when the object was created.
I tried not to call the File constructor, but it doesn't work also. My
LocalProperty 'title' is somehow 'hidden'.
Could you please give me some indications about what am I doing wrong?
Is there another way to have a class like MClass?
Thanks a lot,
Dragos
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