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On 3/1/2011 7:18 PM, Robert Collins wrote:
> On Wed, Mar 2, 2011 at 4:19 AM, John Arbash Meinel
> <[email protected]> wrote:
>>
>> Do we have a way to find out more information about what was going on
>> when these were restarted? It has been quite some time since loggerhead
>> was crashing this much.
>>
>> Specifically, the last crash on that page was back in December, so about
>> 2-3 months ago. And now it is crashing 2x in 2 days.
>
> Its been hanging [or perhaps just /very slow/ in a regular expression
> in pygments. I've also been seeing very slow performance in previously
> fine code in oops-tools leading to very slow oops rendering. I don't
> have enough data to say that these are/are not related yet. William
> has been debugging this and may have more info.
>
> I agree that its strange that this happened now. AFAIK, though, the
> python re engine is self contained, not a thunk to a C re engine...
> and Python hasn't been changed since we upgraded to lucid (octoberish
> last year).
>
> -Rob
You mean a non-python C regex engine?
>>> import re
>>> x = re.compile('test')
>>> x.match
<built-in method match of _sre.SRE_Pattern object at 0x01D77A40>
So regexes are compiled classes under the covers.
My best guess is that we upgrade pygments, or maybe just exposed it to
specific data files?
John
=:->
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