[pLog-svn] Process size

Jon Daley plogworld at jon.limedaley.com
Thu Dec 14 17:29:32 GMT 2006


 	I am not sure how it works.  You should be able to search on 
google for how to use it.

On Thu, 14 Dec 2006, Ayalon wrote:

> I see in your code that there's some kind of xdebug, how can I run this? And
> will this allow me to see every step the script is doing before generating
> the error?
>
> -----Oorspronkelijk bericht-----
> Van: Jon Daley [mailto:plogworld at jon.limedaley.com]
> Verzonden: donderdag 14 december 2006 16:26
> Aan: Ayalon
> Onderwerp: Re: [pLog-svn] Process size
>
> 	Right, it's possible, but note that he links to the "evil" article
> on the wiki as well.
>
> On Thu, 14 Dec 2006, Ayalon wrote:
>
>> Hi Jon,
>>
>> See this from phunk, he's also saying a lot of time ago that it's
>> possible the way i have it.
>>
>> http://forums.lifetype.net/viewtopic.php?t=2274&postdays=0&postorder=a
>> sc&highlight=permalinks&start=15
>>
>>
>>
>> ----- Original Message ----- From: "Jon Daley"
>> <plogworld at jon.limedaley.com>
>> To: <plog-svn at devel.lifetype.net>
>> Sent: Thursday, December 14, 2006 3:49 PM
>> Subject: Re: [pLog-svn] Process size
>>
>>
>> In the logs you posted earlier, you can see all the accesses to
>> error.php.  Why is that?  Because you are using URLs that don't exist
>> and have to be caught by the ErrorDocument and redirected to error.php.
>> Your blog still works now, right? - maybe you just never had yahoo
>> grabbing bad urls before.  Maybe LifeType is parsing the bad url
>> differently than it did before.  Since it is a bad URL, I don't know
>> how one could define parsing it better - maybe it used to return a
>> failure, and now it going to whatever you have defined for a
>> non-existent blog, etc. I am not sure.
>> Did you read the wiki article I sent?
>>
>> Though, I find it strange that your pages are not returning 404 errors
>> if that is really what is happening.
>>
>> Is there stuff in your apache error log?
>>
>> On Thu, 14 Dec 2006, Ayalon wrote:
>>
>>> Well what i did, as you can see in the previous screenshots, i
>>> removed all the  /blog/{blogname} from the links. Thats it.
>>>
>>> In my htaccess is only the forcetype part and error.php part. No
>>> rewrite rules nothing..
>>>
>>> Why does those url's have to do a redirect? I don't understand, and
>>> with lifetype 1.0.6 and previous it was working perfectly. (i'm using
>>> lifetype for
>>> years;))
>>>
>>> ----- Original Message ----- From: "Jon Daley"
>>> <plogworld at jon.limedaley.com>
>>> To: "LifeType SVN" <plog-svn at devel.lifetype.net>
>>> Sent: Thursday, December 14, 2006 3:29 PM
>>> Subject: Re: [pLog-svn] Process size
>>>
>>>
>>> Ah - you don't have /category/{category} in your URLs.
>>> So
>>> http://amsterdam.blog.nl/toerist_in_eigen_stad/2006/12/12/economie-am
>>> sterdam-staat-er-goed-voor has to do a redirect.  What is in your
>>> .htaccess?  I am not seeing a 404 returned, which means you either
>>> wrote some custom rules, or the modrewrite stuff is being matched.
>>>
>>> You have read this, right?
>>> http://wiki.lifetype.net/index.php/Custom_URLs#Why_removing_.2Fblog.2
>>> F_from_the_URLs_is_evil
>>>
>>> I bet if you put the URLs back to the defaults, your problem will go
> away.
>>>
>>> We should probably write a custom URL validator or something to check
>>> when people write bad URLs, though I am not sure how it is parsing it
>>> when you have the extra slash.
>>>
>>>
>>> On Thu, 14 Dec 2006, Ayalon wrote:
>>>
>>>> Ok, yours is fixed, now my problem..
>>>>
>>>> A not excisting url with the format categorie/year/month/day/ is
>>>> causing memory errors..
>>>>
>>>>
>>>> ----- Original Message ----- From: "Jon Daley"
>>>> <plogworld at jon.limedaley.com>
>>>> To: <plog-svn at devel.lifetype.net>
>>>> Sent: Thursday, December 14, 2006 3:10 PM
>>>> Subject: Re: [pLog-svn] Process size
>>>>
>>>>
>>>> The slashes are now enabled, that is just a configuration choice,
>>>> and I hadn't ever noticed before.
>>>>
>>>> I changed them to:
>>>> category_link_format
>>>> /category/{catname}/?$
>>>>
>>>> archive_link_format
>>>> /archives/{year}/?{month}/?({day}/?)?
>>>>
>>>> actually, the archive format didn't work like that, because it
>>>> started generating URLs like:
>>>> http://jon.limedaley.com/plog/archives/2006/01//
>>>> which caused it to only show one day's worth of posts.
>>>> So, my archive_link_format is:
>>>> /archives/{year}/?{month}/?{day}?$
>>>>
>>>> slash removed to avoid the double slash problem, and the $ added to
>>>> distinguish from my permalink entry:
>>>> /archives/{year}/{month}/{day}/{postname}$
>>>>
>>>> Probably it was matching with a null postname or something.
>>>>
>>>> In all of that, though, I never had any memory problems.  I believe
>>>> I have it currently set to 16MB.  This is enough to show lots of
>>>> comments on one page, but not to show thousands, and small enough to
>>>> not kill the server if lots of pages are viewed simultaneously.
>>>>
>>>>
>>>> On Thu, 14 Dec 2006, Ayalon wrote:
>>>>> Using subdomain enabled, the rest is in the screenshot.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> -------------------------------------------------------------------
>>>>> ----------------------------------------------------------------
>>>>> Jon:
>>>>>
>>>>> Also in your config there minor issues related to url's:
>>>>>
>>>>> http://jon.limedaley.com/plog/category/pregnancy will show the
>>>>> categorie http://jon.limedaley.com/plog/category/pregnancy/ is
>>>>> showing the main page
>>>>>
>>>>> At my situation yahoo bot is for some reason crawling:
>>>>>
>>>>> http://amsterdam.blog.nl/amsterdam/2006/12/07 (not a correct url,
>>>>> and shows
>>>>> mainpage)
>>>>> http://amsterdam.blog.nl/amsterdam/2006/12/07/ (not a correct url
>>>>> and gets a mem error)
>>>>>
>>>>> Obvious yahoo crawler is doing incorrect things, but this can't
>>>>> ofcourse get there serious errors...
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ----- Original Message ----- From: "Jon Daley"
>>>>> <plogworld at jon.limedaley.com>
>>>>> To: <plog-svn at devel.lifetype.net>
>>>>> Sent: Thursday, December 14, 2006 1:50 PM
>>>>> Subject: Re: [pLog-svn] Process size
>>>>>
>>>>>
>>>>> What are your custom URL settings set to?  I can't duplicate this
>>>>> on my blog.
>>>>>
>>>>> On Thu, 14 Dec 2006, Ayalon wrote:
>>>>>
>>>>>> First i'm running freedbsd 6.0  with php 5.1.6 and apache 2.2.2
>>>>>>
>>>>>> The exact url, i make an exampe:
>>>>>>
>>>>>> i'm running a subdomain config with straight categories behind it.
>>>>>>
>>>>>> so: subdomain.domain.com/categorie
>>>>>>
>>>>>> This ofcourse excist, if i type a categorie behind it that doesn´t
>>>>>> excist it comes up with an error.
>>>>>>
>>>>>> Now i call a categorie but with a archive page look:
>>>>>>
>>>>>> subdomain.domain.com/categorie/year/month/date This works fine.
>>>>>>
>>>>>> But yahoo is searching it with a / behind the url:
>>>>>>
>>>>>> subdomain.domain.com/categorie/year/month/date/ The thing is that
>>>>>> this will work, but if you put a / behind the url it's not working
>>>>>> anymore and is causing memory errors etc.
>>>>>>
>>>>>> for example:
>>>>>>
>>>>>> http://amsterdam.blog.nl/amsterdam/2006/12/07 works fine
>>>>>>
>>>>>> http://amsterdam.blog.nl/amsterdam/2006/12/07/ gets errors in the
>>>>>> log and out of memory issues, please don't click it :)
>>>>>>
>>>>>> Anybody an idea how to fix this?
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> ----- Original Message ----- From: "Oscar Renalias"
>>>>>> <oscar at renalias.net>
>>>>>> To: <plog-svn at devel.lifetype.net>
>>>>>> Sent: Thursday, December 14, 2006 9:51 AM
>>>>>> Subject: Re: [pLog-svn] Process size
>>>>>>
>>>>>>
>>>>>>> Can you provide the exact URLs? Or even better, the exact line(s)
>>>>>>> from the logs.
>>>>>>>
>>>>>>> How about your version of PHP? Are you running PHP 4 or PHP 5?
>>>>>>>
>>>>>>> On 12/14/06, Ayalon <ayalon at blog.nl> wrote:
>>>>>>>> Found it!
>>>>>>>>
>>>>>>>> Searched the logs for the yahoobot. It looks like yahoo is
>>>>>>>> crawling a lot of pages that don't exist.
>>>>>>>>
>>>>>>>> for example blogname.mydomain.com/categoryname/year/month/date
>>>>>>>>
>>>>>>>> While a normal yahoo request is passing by normally. This page
>>>>>>>> doesn't excist in my enviroment and this will cause some kind of
>>>>>>>> loop in the script with eventually causing a lot of mem in php,
>>>>>>>> a lot of buffering in apache etc. I looked in the php and apache
>>>>>>>> forums and bug reports, but can't find anything. Is there
>>>>>>>> something wrong in the way not excisting url's etc are being
>>>>>>>> handled? Because i see in my logs normal request are also handle
>>>>>>>> correct. Pages, and especially within subdirs are causing these
>>>>>>>> problems..
>>>>>>>>
>>>>>>>> If you need more info, i'm happy to give. Probably also devel
>>>>>>>> had this problem last weekend...
>>>>>>>>
>>>>>>>>
>>>>>>>> ----- Original Message -----
>>>>>>>> From: "Ayalon" <ayalon at blog.nl>
>>>>>>>> To: <plog-svn at devel.lifetype.net>
>>>>>>>> Sent: Thursday, December 14, 2006 8:32 AM
>>>>>>>> Subject: RE: [pLog-svn] Process size
>>>>>>>>
>>>>>>>>
>>>>>>>>> Hi Oscar,
>>>>>>>>>
>>>>>>>>> Thanks for your email. But anyway, we're not allowing apache
>>>>>>>>> to >
>>>>>>>> grow
>>>>>>>>> >
>>>>>>>>>
>>>>>>>> so
>>>>>>>>> big,
>>>>>>>>> it's php with e mem limit of 32. If I try to run it with a
>>>>>>>>> lower >
>>>>>>>> value
>>>>>>>>> >
>>>>>>>> the
>>>>>>>>> pages with comments are not shown (100+ comments). So do I
>>>>>>>>> have >
>>>>>>>> another
>>>>>>>>> choice?
>>>>>>>>>
>>>>>>>>> Jon: I'll true to get the logs to show you what yahoo is hitting..
>>>>>>>>> Jon2: Can you see anything on devel?
>>>>>>>>>
>>>>>>>>> -----Oorspronkelijk bericht-----
>>>>>>>>> Van: plog-svn-bounces at devel.lifetype.net
>>>>>>>>> [mailto:plog-svn-bounces at devel.lifetype.net] Namens Oscar
>>>>>>>>> Renalias
>>>>>>>>> Verzonden: donderdag 14 december 2006 8:28
>>>>>>>>> Aan: plog-svn at devel.lifetype.net
>>>>>>>>> Onderwerp: Re: [pLog-svn] Process size
>>>>>>>>>
>>>>>>>>> In addition to all I said before, why do you allow up to 32mb
>>>>>>>>> to >
>>>>>>>> each
>>>>>>>>> Apache
>>>>>>>>> project? I think that's too much, nowadays 8-12mb should be a
>>>>>>>>> more reasonable figure. If there's memory leaks somewhere in
>>>>>>>>> PHP (not in  >
>>>>>>>>>
>>>>>>>> our
>>>>>>>>> code, remember that there's no way to explicitely deallocate
>>>>>>>>> an >
>>>>>>>> object
>>>>>>>>> >
>>>>>>>> in
>>>>>>>>> PHP code as far as I know), 32mb isn't exactly going to help...
>>>>>>>>>
>>>>>>>>> On 12/14/06, Oscar Renalias <oscar at renalias.net> wrote:
>>>>>>>>>> No, we're not checking anything. From Lifetype's point of
>>>>>>>>>> view, we don't really care about who is making the request.
>>>>>>>>>>
>>>>>>>>>> Could it be that the Yahoo blog is performing searches? You
>>>>>>>>>> should  >>
>>>>>>>> be
>>>>>>>>>> able to see what kind of requests the crawler is making by >>
>>>>>>>> referencing
>>>>>>>>>> the timestamps you posted below from apache's error log file
>>>>>>>>>> with  >>
>>>>>>>>>>
>>>>>>>> the
>>>>>>>>>> data you've got in the access log. The apache access log
>>>>>>>>>> should contain the exact request, please find it and post it
>>>>>>>>>> here, >>
>>>>>>>> otherwise
>>>>>>>>>> we're just guessing.
>>>>>>>>>>
>>>>>>>>>> On 14 Dec 2006, at 00:15, Ayalon wrote:
>>>>>>>>>>
>>>>>>>>>>> Nope, there's nobody who has so many post in the mainpage
>>>>>>>>>>> as I configure everybody's blog.
>>>>>>>>>>>
>>>>>>>>>>> It's not just an issue with all bots, it's only with yahoo bot.
>
>>>>>>>>>>> >>
>>>>>>>>> >>
>>>>>>>>>>> >
>>>>>>>> When
>>>>>>>>>>> searching the net I found more similair problems. No check
>>>>>>>>>>> is >>  >
>>>>>>>> done
>>>>>>>>>>> who is coming on the site or something??
>>>>>>>>>>>
>>>>>>>>>>> -----Oorspronkelijk bericht-----
>>>>>>>>>>> Van: plog-svn-bounces at devel.lifetype.net
>>>>>>>>>>> [mailto:plog-svn-bounces at devel.lifetype.net] Namens Oscar
>>>>>>>>>>>>>>
>>>>>>>> Renalias
>>>>>>>>>>> Verzonden: woensdag 13 december 2006 23:10
>>>>>>>>>>> Aan: plog-svn at devel.lifetype.net
>>>>>>>>>>> Onderwerp: Re: [pLog-svn] Process size
>>>>>>>>>>>
>>>>>>>>>>> I guess it's the same issue we had in devel.lifetype.net.
>>>>>>>>>>>
>>>>>>>>>>> One thing you should check is whether you've got any user
>>>>>>>>>>> who >>
>>>>>>>>> has
>>>>>>>>>>> configured his/her blog to display something like 80 or 100
>>>>>>>>>>>>>>
>>>>>>>> posts
>>>>>>>>>>> >>
>>>>>>>>> in
>>>>>>>>>>> the front page, as that can cause performance problems.
>>>>>>>>>>> There's already a fix for that in LT 1.2, but in the
>>>>>>>>>>> meantime you will >>
>>>>>>>>> >>
>>>>>>>>>>> >
>>>>>>>> have
>>>>>>>>>>> to keep an eye on it on your own.
>>>>>>>>>>> Otherwise a crawler performs the exact same operations as a
>>>>>>>>>>> user  >>
>>>>>>>>> >>
>>>>>>>>> via
>>>>>>>>>>> a browser would do.
>>>>>>>>>>>
>>>>>>>>>>> On 13 Dec 2006, at 20:48, Ayalon wrote:
>>>>>>>>>>>
>>>>>>>>>>>> Ok, I found the problem, and I tell you it's really
>>>>>>>>>>>> strange but  >>
>>>>>>>>>> >>
>>>>>>>>>> true:
>>>>>>>>>>>>
>>>>>>>>>>>> The yahoo bot (inktomi bot) is hitting my site and then
>>>>>>>>>>>> the Cache_lite.php is for some reason using to much memory:
>>>>>>>>>>>>
>>>>>>>>>>>> [Tue Dec 12 00:01:44 2006] [error] [client 74.6.85.156]
>>>>>>>>>>>> PHP >>  >>
>>>>>>>> Fatal
>>>>>>>>>>>> error:
>>>>>>>>>>>> Allowed memory size of 33554432 bytes exhausted (tried to
>>>>>>>>>>>>>>>>
>>>>>>>> allocate
>>>>>>>>>>>> 84 bytes)
>>>>>>>>>>>> in /data/www/www.blog.nl/class/cache/Cache_Lite/Lite.php
>>>>>>>>>>>> on >>
>>>>>>>>>> line
>>>>>>>>>>>> 352
>>>>>>>>>>>>
>>>>>>>>>>>> [Tue Dec 12 00:05:27 2006] [error] [client 74.6.86.205]
>>>>>>>>>>>> PHP >>  >>
>>>>>>>> Fatal
>>>>>>>>>>>> error:
>>>>>>>>>>>> Allowed memory size of 33554432 bytes exhausted (tried to
>>>>>>>>>>>>>>>>
>>>>>>>> allocate
>>>>>>>>>>>> 93 bytes)
>>>>>>>>>>>> in /data/www/www.blog.nl/class/cache/Cache_Lite/Lite.php
>>>>>>>>>>>> on >>
>>>>>>>>>> line
>>>>>>>>>>>> 352
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> When a normal user is hitting the site, there's nothing at
> all.
>>>>>>>>>>>> When the bot
>>>>>>>>>>>> is hitting my site this is happening with a lot of the >>
>>>>>>>>>>>>>>
>>>>>>>> requests.
>>>>>>>>>>>> Also the
>>>>>>>>>>>> apache process is growing so big that at the end the
>>>>>>>>>>>> process is using so much memory that it's starting to use the
> swap.
>>>>>>>>>>>>
>>>>>>>>>>>> What can cause this problem? Now I blocked yahoo bot via
>>>>>>>>>>>>>>>>
>>>>>>>> htaccess
>>>>>>>>>>>> and the problem is not there anymore. It started to happen
>>>>>>>>>>>>>>>>
>>>>>>>> after
>>>>>>>>>>>> the upgrade to the new lifetype platform. Are there some
>>>>>>>>>>>> checks  >>
>>>>>>>>>> >>
>>>>>>>>>> for
>>>>>>>>>>>> who is coming in?
>>>>>>>>>>>> Do you
>>>>>>>>>>>> need more data?
>>>>>>>>>>>>
>>>>>>>>>>>> Anyway it's strange and interesting, anybody an idea....??
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> -----Oorspronkelijk bericht-----
>>>>>>>>>>>> Van: plog-svn-bounces at devel.lifetype.net
>>>>>>>>>>>> [mailto:plog-svn-bounces at devel.lifetype.net] Namens Jon
>>>>>>>>>>>> Daley
>>>>>>>>>>>> Verzonden: woensdag 13 december 2006 17:06
>>>>>>>>>>>> Aan: plog-svn at devel.lifetype.net
>>>>>>>>>>>> Onderwerp: RE: [pLog-svn] Process size
>>>>>>>>>>>>
>>>>>>>>>>>> On Wed, 13 Dec 2006, Ayalon wrote:
>>>>>>>>>>>>> Where can I find the post of the rewrite?
>>>>>>>>>>>>
>>>>>>>> http://forums.lifetype.net/viewtopic.php?p=23240&highlight=htacc
>>>>>>>> ess
>>>>>>>>>>>> +rewrite+
>>>>>>>>>>>> error
>>>>>>>>>>>>
>>>>>>>>>>>>> Anyway my provider is telling me that it looks like
>>>>>>>>>>>>> lifetype >>
>>>>>>>>>>> >>
>>>>>>>>>>> has
>>>>>>>>>>>>> memoryleaks in various aspects of the script, starting
>>>>>>>>>>>>> with >>  >>
>>>>>>>>>>> >>
>>>>>>>>>>> >>>
>>>>>>>> caching.
>>>>>>>>>>>>> Is
>>>>>>>>>>>> that possible?
>>>>>>>>>>>>      It is certainly possible.  I would expect to see more
>>>>>>>>>>>>>>>>
>>>>>>>>>> >>
>>>>>>>> memory
>>>>>>>>>>>> usage in my setup if that were the case.
>>>>>>>>>>>>
>>>>>>>>>>>>> Is it possible to disable everything related to cache
>>>>>>>>>>>>> lift? >>
>>>>>>>>>>> Just
>>>>>>>>>>>>> to test some things...
>>>>>>>>>>>>      Line 39 of class/cache/cachemanager.class.php.
>>>>>>>>>>>> Change $cacheEnable to false.  I think that should do the
> trick.
>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>> pLog-svn mailing list
>>>>>>>>>>>> pLog-svn at devel.lifetype.net
>>>>>>>>>>>> http://devel.lifetype.net/mailman/listinfo/plog-svn
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>> pLog-svn mailing list
>>>>>>>>>>>> pLog-svn at devel.lifetype.net
>>>>>>>>>>>> http://devel.lifetype.net/mailman/listinfo/plog-svn
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> _______________________________________________
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>>>>>>>>>>
>>>>>>>>>> _______________________________________________
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>>>>>>
>>>>>
>>>>> --
>>>>> Jon Daley
>>>>> http://jon.limedaley.com/
>>>>>
>>>>> The difference between genius and stupidity is that genius has its
>>>>> limits.
>>>>> -- Anonymous
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> -------------------------------------------------------------------
>>>>> -------------
>>>>>
>>>>>
>>>>>> _______________________________________________
>>>>>> pLog-svn mailing list
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>>>>>> http://devel.lifetype.net/mailman/listinfo/plog-svn
>>>>>
>>>>>
>>>>> ___________________________________________________________________
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>>>>
>>>> --
>>>> Jon Daley
>>>> http://jon.limedaley.com/
>>>>
>>>> Music: A safe kind of high
>>>> -- Jimi Hendrix
>>>>
>>>>
>>>>
>>>>
>>>> --------------------------------------------------------------------
>>>> ------------
>>>>
>>>>
>>>>> _______________________________________________
>>>>> pLog-svn mailing list
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>>>>> http://devel.lifetype.net/mailman/listinfo/plog-svn
>>>>
>>>>
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>>>
>>> --
>>> Jon Daley
>>> http://jon.limedaley.com/
>>>
>>> If everything is coming your way then you're in the wrong lane.
>>> -- Anonymous
>>>
>>>
>>>
>>> ---------------------------------------------------------------------
>>> -----------
>>>
>>>
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>>
>> --
>> Jon Daley
>> http://jon.limedaley.com/
>>
>> The reason houses are made of brick instead of aluminum foil is the
>> thermal diffusivity.
>> -- Professor Shaeffer
>>
>>
>> ----------------------------------------------------------------------
>> ----------
>>
>>
>>> _______________________________________________
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>
> --
> Jon Daley
> http://jon.limedaley.com/
>
> There are 2 rules for success:
> 1) Never tell everything you know.
> -- Roger H. Lincoln
>
>

-- 
Jon Daley
http://jon.limedaley.com/

God is a comedian playing to an audience too afraid to laugh.
-- Voltaire


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