Re: Odp: Re: [squid-users] how to apply epoll-2_5 patch to squid2.5-stable9

Thanks a lot. I send to a wrong email address last time.

Where is the lastest epoll patch that solved the
"epoll_ctl(EPOLL_CTL_DEL): failed on fd=197" problem?
Is it in squid src tagged with epoll-2.5 in squid CVS? Or, is it in
the patch from
http://devel.squid-cache.org/cgi-bin/diff2/epoll-2_5.patch?s2_5?

sally

On 5/11/05, Steven Wilton <swilton@q-net.net.au> wrote:
> I did manage to trace the cause of the "epoll_ctl(EPOLL_CTL_DEL): failed on
> fd=197" messages. The latest epoll patch fixes this problem.
>
> There are 2 messages that the new patch will cause to appear with the
> default debug options (ALL,1):
>
> storeClientCopy3: <url> - clearing ENTRY_DEFER_READ
>
> This is caused when an object has been deferred, and for some reason the
> memory has not been freed, even though all clients have seen all in-memory
> parts of the url. I can't see why this would be the case, and I'm sure it's
> not caused by the epoll code, but the epoll code needs to catch this
> condition.
>
> WARNING defer handler for fd=<fd>(<url>) does not call commDeferFD() -
> backing off manually.
>
> This is caused when an object has data ready to be read, and the defer
> handler reports that the read should be deferred, but does not tell the
> epoll code to back off. This debug would probably be very noisy if used
> with delay pools, but other than that it indicates a non-optimised defer
> handler.
>
> These two debug statements do not produce a large number of entries in the
> debug logs (181 and 52 messages respectively out of 3204 messages total in
> one of our proxy server's cache.log out of a total of ~4.2 million
> requests). The proxy server does handle these cases appropriately, but they
> indicate sub-optimal performance. As they represent a tiny fraction of the
> total number of requests, I have not spent any time working out the exact
> cause of these problems.
>
> Regards
> Steven
>
> > -----Original Message-----
> > From: Sally Huang [mailto:sallyhsl@gmail.com]
> > Sent: Wednesday, May 11, 2005 9:34 AM
> > To: Henrik Nordstrom
> > Cc: squid-users@squid-cache.org
> > Subject: Re: Odp: Re: [squid-users] how to apply epoll-2_5
> > patch to squid2.5-stable9
> >
> > Thanks for your clarify.
> >
> > The author doesn't reply me. Could you pls do me a favor and check
> > with the author whether he has updated the latest epoll patch so that
> > everyone won't face this "epoll_ctl(EPOLL_CTL_DEL): failed on fd=197"
> > problem?
> >
> > Regards,
> > sally
> >
> >
> > On 5/10/05, Henrik Nordstrom <hno@squid-cache.org> wrote:
> > >
> > >
> > > On Tue, 10 May 2005, Sally Huang wrote:
> > >
> > > > Do you mean the " epoll_ctl(EPOLL_CTL_DEL): failed on fd=197" bug
> > > > isalready fixed on both epoll-2_5 patch and epoll-2.5 branch in
> > > > squidCVS?
> > >
> > > I am the wrong person to answer that question, but as you I
> > remember the
> > > branch author mentioning that there has been fixes in that area.
> > >
> > > I answerd to the question how you could get the latest
> > version of the
> > > epoll branch.
> > >
> > > Regards
> > > Henrik
> > >
> >
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>
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>
Received on Tue May 10 2005 - 22:03:15 MDT