Edgewall Software
Modify

Opened 4 years ago

Closed 4 years ago

Last modified 4 months ago

#10190 closed defect (cantfix)

"OverflowError: regular expression code size limit exceed"

Reported by: juliey@… Owned by:
Priority: normal Milestone:
Component: wiki system Version:
Severity: normal Keywords: OverflowError
Cc:
Release Notes:
API Changes:

Description (last modified by cboos)

When view wiki page, do not process cause by error.

Python Traceback

File "D:/TracLight/.egg-cache/trac-0.12.ja1-py2.6.egg-tmp/trac/wiki/templates/wiki_view.html", Line 58, Method <Expression u'wiki_to_html(context, text)'>
File "build/bdist.win32/egg/trac/wiki/formatter.py", Line 1497, Method format_to_html
File "build/bdist.win32/egg/trac/wiki/formatter.py", Line 1452, Method generate
File "build/bdist.win32/egg/trac/wiki/formatter.py", Line 1240, Method format
File "build/bdist.win32/egg/trac/wiki/parser.py", Line 172, Method _get_rules
File "build/bdist.win32/egg/trac/wiki/parser.py", Line 202, Method _prepare_rules
File "D:/TracLight/phthon/Lib/re.py", Line 190, Method compile
File "D:/TracLight/phthon/Lib/re.py", Line 243, Method _compile
File "D:/TracLight/phthon/Lib/sre_compile.py", Line 529, Method compile

System Information:

User Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; Infopath.1)

Trac 0.12.ja1
Babel 0.9.5
CustomFieldAdmin 0.2.5
Docutils 0.7
Genshi 0.6
mod_wsgi 3.3(WSGIProcessGroup WSGIApplicationGroup %{GLOBAL})
Pygments 1.3.1
pysqlite 2.4.1
Python 2.6.6(r266:84297, Aug 24 2010,18:46:32)[MSC v.1500 32 bit(Intel)]
RPC 1.1.0
setuptools 0.6c11
SQLite 3.5.9
Subversion 1.6.6(r40053)
jQuery 1.4.2

Attachments (0)

Change History (8)

comment:1 Changed 4 years ago by cboos

  • Description modified (diff)

You mentioned "OverflowError" in the keywords. Does this mean that your error report is not complete? What's precisely in the trac.log file? (see TracLogging if needed).

Also, try to disable all plugins. Does the error still happen? If not, enable plugins one by one and try to isolate the one introducing the error.

comment:2 Changed 4 years ago by rblank

Scary thought that we seem to be close to the size limit for regular expressions :(

comment:3 Changed 4 years ago by cboos

Stupid me, I managed to miss the ticket's summary ;-)

Well, our wiki_page_name pattern tags/trac-0.12/trac/wiki/api.py@#L301 is by no means light, thanks to the Ll and Lu strings, which maybe doesn't leave much left for the plugins. If there's another one there which is as greedy…

comment:4 Changed 4 years ago by juliey@…

When register 10'000 over wikiPages via XML-RPC API (or trac-admin wiki import), this error occured. Then, I remove all imported page record from wiki table, seem to recovery.

Other case,same number of pages,import by 100~1000 count,no error occation.

I want to know how to avoid error stop…

by the way, do you know a way "safe import lot of pages"?

comment:5 follow-up: Changed 4 years ago by cboos

You must be using the TH:AutoWikifyPlugin.

Then yes, with 10000 pages, such a failure would be expected. You could create an enhancement request on TH for this plugin, asking for ways to better cope with this situation (some ideas: only add to the regexp the page names that don't already follow the conventions for WikiPageNames, find common prefixes and use a match to <prefix>.* followed by an explicit check against the list, etc.).

comment:6 Changed 4 years ago by cboos

  • Resolution set to cantfix
  • Status changed from new to closed

comment:7 Changed 18 months ago by dbussert@…

I'm having this problem on my site, I was previously using AutoWikify?, but even after removing it, I can't get rid of this issue. Other than deleting pages, how I can remove the regexp so I'm not up against this limit?

comment:8 in reply to: ↑ 5 Changed 4 months ago by rjollos

Replying to cboos:

Then yes, with 10000 pages, such a failure would be expected. You could create an enhancement request on TH for this plugin, asking for ways to better cope with this situation (some ideas: only add to the regexp the page names that don't already follow the conventions for WikiPageNames, find common prefixes and use a match to <prefix>.* followed by an explicit check against the list, etc.).

We'll investigate some of your ideas in th:#11953. Thanks!

Modify Ticket

Change Properties
Set your email in Preferences
Action
as closed The ticket will remain with no owner.
The resolution will be deleted. Next status will be 'reopened'.
to The owner will be changed from (none) to the specified user.

Add Comment


E-mail address and name can be saved in the Preferences.

 
Note: See TracTickets for help on using tickets.