gmane.comp.web.wiki.moin.general

Re: Activate timing.log

Mark Scheufele — 2012-05-21T06:48:39

Hi Vojtěch,

I had to set show_timings=True within wikiconfig.py to enable it ( moinmoin 1.9.3 on windows).

BR,

mark

-----Original Message-----
From: Vojtěch Trefný [mailto:vojtech.trefny< at >gmail.com] 
Sent: Freitag, 18. Mai 2012 20:39
To: moin-user< at >lists.sourceforge.net
Subject: [Moin-user] Activate timing.log

Hi,

because I'm experiencing some performace issues with my moinmoin wiki, I've tried to enable timing.log feature. I've added "log_timing = True" to my wikiconfig (and my SystemInfo page shows it set), but the timing.log wasn't created.

I've tried fresh installation of MoinMoin 1.9.3 on localhost and got same problem, so it seems to me, I've forgot some configuration steps, but only information I can find is one paragraph in 1.5.8 changelog saying I need only set the log_timing variable.


MoinMoin version: 1.9.3, Python 2.6.6, System: Debian

Sorry, for my english, I know it's terrible, but I hope it's possible to understand. Thanks for help.

--
Regards

Vojtěch

Activate timing.log

Vojtěch Trefný — 2012-05-18T18:39:29

Hi,

because I'm experiencing some performace issues with my moinmoin wiki,
I've tried to enable timing.log feature. I've added "log_timing =
True" to my wikiconfig (and my SystemInfo page shows it set), but the
timing.log wasn't created.

I've tried fresh installation of MoinMoin 1.9.3 on localhost and got
same problem, so it seems to me, I've forgot some configuration steps,
but only information I can find is one paragraph in 1.5.8 changelog
saying I need only set the log_timing variable.

MoinMoin version: 1.9.3, Python 2.6.6, System: Debian

Sorry, for my english, I know it's terrible, but I hope it's possible
to understand. Thanks for help.

Re: Adding an ID to a parsed HTML entity

Reimar Bauer — 2012-05-13T09:05:00

Am 05.05.2012 00:29, schrieb Matt Savigear:

Look at the explorer theme on theme market

I guess that is a similar idea

Reimar



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Re: How to create a batch of accounts quickly

R.Bauer — 2012-05-12T17:56:49


Hi

I often use for that purpose:

http://hg.moinmo.in/moin/extensions/file/tip/data/plugin/script/account/create_many.py

It is an extension for the moin command.


You don't need to know, because the user can just create a recovery
token and choose the password he likes.


cheers
Reimar



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How to create a batch of accounts quickly

Yongbiao Long — 2012-05-12T16:29:32

Hello, I installed moinmoin on a debian machine. It will be used
only in a small group (about 100 person) in campus. I want to
create an account for each of them in advance.

I have a list email addresses. Can I create accounts given that?

I have low security requirements, so the username and password
can just be same as the name of their email address.

Re: Selecting text

Thomas Waldmann — 2012-05-12T14:46:18

The html parser removes potentially dangerous stuff, that includes
javascript code.

You could either use some unsafe html parser (and make sure nobody can
use it for dangerous stuff) or just write a macro that emits the stuff
you need.



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Selecting text

Kai Jaeger — 2012-05-12T12:49:13

I would like to give the user an opportunity to select text. More
precisely: program code.
Of course I would prefer a button "Copy code" but I don't want a Flash
or a Java solution and simple JavaScript solutions seem to work only
in Internet Explorer.

Anyway, my audience are programmers, selecting the text as a result of
a click on a "Hightlight code" button is okay, they can press Crl+C
themselves.

I found some JavaScript which seems to be doing what I am after. All I
need to do is to create a link or a button that executes that piece of
JavaScript.

I took a naive approach:

{{{#!html
<button onclick="javascript:fnSelect('code01');">Hightlight Code</button>
}}}

Unfortunately Moin changes this code into
<button>Hightlight Code</button>
which naturally has no affect at all.

What is the right way to do this? My guess is that it cannot be done
without some Python code which in turn calls the JavaScript code?

Kai

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Adding an ID to a parsed HTML entity

Matt Savigear — 2012-05-04T22:29:00

Hi,

I'm trying to find the easiest way to generate a "tree style" table of 
contents for my MoinMoin instance. What I need is a series of nested 
accordions or a full on tree with open/close widgets to the left as you 
would find in a standard folder-type or directory browser.

Now, I can easily create nested lists using the default wiki parser, but 
I'd like to know if there is a way of adding an "id" tag to the top 
level <ul> which is created (i.e. <ul id="myidentifier">) without 
manually building the whole list structure from scratch in HTML and 
having to manually create the page links.

That way I can just add a jQuery jsTree and convert the whole nested 
list structure in one shot: $('#myidentifier').jstree();

Of course, then I'll need to figure out how to persist the list state 
between page transition, but I think there's already a cookie method for 
doing that built in to the jsTree code.

Thanks for any pointers,

Matt.

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Re: Diagnose and fix performance problems?

Thomas Waldmann — 2012-05-03T22:54:41


That sounds a bit weird. Usually startup of such a process should take
less than a second (assuming that the machine is not totally overloaded)
and afterwards it should be quick as long as you use it.

So I have doubts this really is your problem.




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Re: Diagnose and fix performance problems?

Christopher MacMinn — 2012-05-03T13:47:58

Am I right in thinking that Xapian is strictly for user-initiated
searches of the MoinMoin site by entering text in a search box, or
does MoinMoin use it somehow under-the-hood? We do not have a site
search, so I figured that we had no use for this.

Thanks for taking a look, Paul. It's good to know that we're not doing
anything blatantly unintelligent. :)

Best, Chris

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Re: Diagnose and fix performance problems?

Christopher MacMinn — 2012-05-03T13:40:40

I guess FastCGI is supposed to be a long-running process in principle;
however, I just learned from the folks who administer the servers that
our FastCGI processes are automatically terminated after 15 minutes of
inactivity and must be relaunched upon the next visit after that. This
is definitely one cause of the sluggishness, so we may need to look
elsewhere for hosting. I'll keep digging to see if there's anything
else strange going on.

Thanks again!
Best, Chris

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Re: Diagnose and fix performance problems?

Paul Boddie — 2012-05-02T23:25:10

Although Thomas wrote that CGI is slow, it isn't necessarily super-slow, just 
slow compared to WSGI. Even then, there are lots of things that can overwhelm 
the overhead of CGI in terms of performance costs, even if you've switched to 
WSGI and are convinced that everything should be much faster.

The classic example of this is any functionality that makes use of page 
searching: perhaps long-running processes may be fortunate when scanning 
pages for, say, category information if it gets cached over time (although 
the filesystem cache would help for CGI processes, too), but enabling Xapian 
for Moin 1.x provides significant benefits regardless of the means of 
deployment.


Agreed. Still, if things are taking 10 seconds and there isn't some kind of 
pathological script reloading going on, it may be something other than the 
deployment technology.

I have in the past enabled the timing information to spot bottlenecks, 
although this merely indicated that searches were slow and that I should 
enable Xapian

Re: Diagnose and fix performance problems?

Thomas Waldmann — 2012-05-02T22:15:31

Well, I can't tell much about the layers below moin (esp. not for
software I do not use myself), but in principle, fastcgi should be of
almost same performance as mod-wsgi. A little more software (likely
flup) in between moin and web server, but still fast.

Plain CGI (not fastcgi) means loading and initializing all the code for
each request and terminating after that one request is processed.

FastCGI as well as mod-wsgi means long-running processes which are only
rarely terminated and restarted and thus is much faster and less
overhead.



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Re: Diagnose and fix performance problems?

Christopher MacMinn — 2012-05-02T17:22:35

Hi Thomas -

Thanks for your reply!


Thanks! Our goal was for it to function like a wiki for logged-in
users, but to look like a normal webpage to everyone else.



I will do that.


Our servers do not offer mod_wsgi, so I think we're currently using
some sort of WSGI<--> Fast CGI wrapper. Could this be a major cause of
the problems?


It can happen any time, but we're primarily worried about normal page
loading rather then page editing. It's ok (though annoying) for it to
be slow on our end, but we definitely want to it be fast for everyone
else who visits.

Thanks much for your help!
Best, Chris

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Re: Diagnose and fix performance problems?

Thomas Waldmann — 2012-05-02T17:03:36

Hi Chris,

Nicely themed moin 1.9.4. :)

Well, without more infos and without server shell access it is a bit
hard to help.

Look into web server logs (apache access log / error log), compare times
when wiki is fast to times when it is slow.

Did you use apache/mod-wsgi or cgi? cgi is slow.

Look at machine load (linux: "top") when wiki is fast vs. when wiki is
slow. Look which process is eating cpu.

Is it when you are doing specific wiki requests? Like after saving?

If you can't get it solved, talk to me.

Cheers,

Thomas



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Re: xapian search: an unhandled win32 exception occurred inw3wp.exe

Thomas Waldmann — 2012-05-02T16:49:18

Sure, just rename it (you need to be logged in).



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Re: xapian search: an unhandled win32 exception occured inw3wp.exe

Thomas Waldmann — 2012-05-02T16:48:09

That's interesting, but please let's keep the information on the wiki
bug page (noone will dig through the mailing list when trying to fix
bugs).


Oops, that's strange.


If you just see that in the log, without the usual traceback, it likely
means that there was a (rather simple) error handler that catched it and
just logged minimal information.



Well, or it does not happen at all there. Maybe the "request" object has
something that causes issues with copy in one case, but not in the
other?


If there is a more "inner" error handler that catches it, your handler
won't get it.


Great! :)



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Diagnose and fix performance problems?

Christopher MacMinn — 2012-05-02T14:00:34

Hello MoinMoin -

I used MoinMoin to build a website for my former research group at MIT, and
it has worked well for them so far (http://juanesgroup.mit.edu). The
servers are internal to MIT and we have limited control over them.

As it stands, the website has some performance problems -- sometimes it's
quick, and sometimes it takes 10 seconds or more to load a page. I'm
looking for suggestions on how to diagnose and fix this sluggishness. It
could stem from the servers, from MoinMoin, or from less-than-optimal HTML,
CSS, javascript, or Moin configuration that I did myself. Any help would be
greatly appreciated -- thanks!

Best, Chris MacMinn
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Re: xapian search: an unhandled win32 exception occurred inw3wp.exe

Mark Scheufele — 2012-05-02T12:30:22

Hi,

I did file a bug at http://moinmo.in/MoinMoinBugs  regarding the issue. The page name of the bug is  "1.9.3XapianNoIndexUpdateAtPageIfRunningIIS". Would it be possible to rename the page to "1.9.3XapianNoIndexUpdateAtPageChangeIfRunningIIS" to make it a bit more meaningful.

Many Thanks,

mark
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Re: xapian search: an unhandled win32 exception occured inw3wp.exe

Mark Scheufele — 2012-05-02T09:11:18

Hi Thomas,

I was now able to track down to code that triggers IIS to throw the unhandled exception.
It appears within the  _indexingRequest() method  of the MoinMoin\search\builtin.py module.

I did the following:

- inserted a breakpoint into the code using winpdb and restarting the wiki
- after updating a page over the web I could step through the lines of _indexingRequest() until a copy of the request object is being made. This causes the exception within IIS

   def _indexingRequest(self, request):
        """ Return a new request that can be used for index building.

        This request uses a security policy that lets the current user
        read any page. Without this policy some pages will not render,
        which will create broken pagelinks index.

        < at >param request: current request
        """
        import copy
        from MoinMoin.security import Permissions
        from MoinMoin.logfile import editlog

        class SecurityPolicy(Permissions):

            def read(self, *args, **

Re: Print a page in moinmoin

Manfred Lotz — 2012-05-01T02:43:55

On Mon, 30 Apr 2012 23:21:33 +0200
Paul Boddie <paul< at >boddie.org.uk> wrote:

...

I agree. It seems to be the best not to touch the print settings in the
browser, and if I have special needs to print to a pdf document. Then I
could try whatever I want.