Re: [stunnel-users] Problem in Stunnel with too many connections
This is a discussion on Re: [stunnel-users] Problem in Stunnel with too many connections within the Stunnel Users forums, part of the Networking and Network Related category; --===============1767771820== Content-Type: multipart/alternative; boundary=Apple-Mail-1--607198866 --Apple-Mail-1--607198866 Content-Transfer-Encoding: 7bit Content-Type: ...
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11-26-2006
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Re: [stunnel-users] Problem in Stunnel with too many connections
--===============1767771820== Content-Type: multipart/alternative; boundary=Apple-Mail-1--607198866 --Apple-Mail-1--607198866 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Hi there, What's the maximum number of open file descriptors for your OS? Limits of 1024 is normal - you might be hitting that. Running ulimit -n should allow you to check and set that value. Dan On 26/11/2006, at 14:51 , ~ Kunal Sharma ~ wrote: > Hi Friends, > > I've just joined this group. I would take this as an oppurtunity to > discuss a problem I've > been facing in using Stunnel. > > I've been using Stunnel for quite some time now. It has worked very > well all this while. > Recently, I had to shift our webserver onto the Internet and > Stunnel accepts the https > connections on the server's behalf. > > The problem is there are about 4.5 million clients out there in the > field and there's a client > coming up to the server atleast every second, if not less. Stunnel > accepts the connections > and after a while (like an hour) it just dies ! I see that at a > point there are about 950 active > connections and thats the maximum I could see before it dies. > > Could someone help me diagnose the problem (or better to fix it) > - Is there any performance related issue thats a known problem and > I don't know of ? > - What I can look at to see what could be the possible cause ? > - I haven't had a chance to look at the logs yet. Probably they > might tell me something. > - Any other pointers / inputs / suggestions would be heartily welcome. > > I've not been to my office so I won't be able to attach the > necessary information like > the version of stunnel, the logs, configuration options etc. But > promise to send them as > soon as I'm back on Monday after Thanksgiving. > > Thanks and Regards, > Kunal > > > _______________________________________________ > stunnel-users mailing list > stunnel-users@mirt.net > http://stunnel.mirt.net/mailman/listinfo/stunnel-users --- Dan Milne d@nmilne.com http://politiwiki.kicks-ass.net/ --Apple-Mail-1--607198866 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=ISO-8859-1 <HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; = -khtml-line-break: after-white-space; ">Hi there,<DIV>=A0 =A0What's the = maximum number of open file descriptors for your OS? Limits of 1024 is = normal=A0 - you might be hitting that.=A0</DIV><DIV><BR = class=3D"khtml-block-placeholder"></DIV><DIV>=A0=A0 Running=A0ulimit -n = should allow you to check and set that value.</DIV><DIV><BR = class=3D"khtml-block-placeholder"></DIV><DIV>Dan</DIV><DIV><BR = class=3D"khtml-block-placeholder"></DIV><BR><DIV><DIV>On 26/11/2006, at = 14:51 , ~ Kunal Sharma ~ wrote:</DIV><BR = class=3D"Apple-interchange-newline"><BLOCKQUOTE type=3D"cite"><SPAN = class=3D"gmail_quote"></SPAN> <DIV>Hi Friends,</DIV> <DIV>=A0</DIV> = <DIV>I've just joined this group. I would take this as an oppurtunity to = discuss a problem I've </DIV> <DIV>been facing in using Stunnel.</DIV> = <DIV>=A0</DIV> <DIV>I've been using Stunnel for quite some time now. It = has worked very well all this while.</DIV> <DIV>Recently, I had to shift = our webserver onto the Internet and Stunnel accepts the https</DIV> = <DIV>connections on the server's behalf.</DIV> <DIV>=A0</DIV> <DIV>The = problem is there are about 4.5 million clients out there in the field = and there's a client</DIV> <DIV>coming up to the server atleast every = second, if not less. Stunnel accepts the connections</DIV> <DIV>and = after a while (like an hour) it just dies ! I see that at a point there = are about 950 active</DIV> <DIV>connections and thats the maximum I = could see before it dies.</DIV> <DIV>=A0</DIV> <DIV>Could someone help = me diagnose the problem (or better to fix it)</DIV> <DIV>- Is there any = performance related issue thats a known problem and I don't know of = ?</DIV> <DIV>- What I can look at to see what could be the possible = cause ?</DIV> <DIV>- I haven't had a chance to look at the logs yet. = Probably they might tell me something.</DIV> <DIV>- Any other pointers / = inputs / suggestions would be heartily welcome.</DIV> <DIV>=A0</DIV> = <DIV>I've not been to my office so I won't be able to attach the = necessary information like</DIV> <DIV>the version of stunnel, the logs, = configuration options etc. But promise to send them as</DIV> <DIV>soon = as I'm back on Monday after Thanksgiving.</DIV> <DIV>=A0</DIV> = <DIV>Thanks and Regards,</DIV><SPAN class=3D"sg"> <DIV>Kunal</DIV> = <DIV>=A0</DIV> <DIV>=A0</DIV></SPAN><DIV style=3D"margin-top: 0px; = margin-right: 0px; margin-bottom: 0px; margin-left: 0px; = ">____________________________________________ ___</DIV><DIV = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; ">stunnel-users mailing list</DIV><DIV = style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; "><A = href=3D"mailto:stunnel-users@mirt.net">stunnel-users@mirt.net</A></DIV><DI= V style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; = margin-left: 0px; "><A = href=3D"http://stunnel.mirt.net/mailman/listinfo/stunnel-users">http://stu= nnel.mirt.net/mailman/listinfo/stunnel-users</A></DIV> = </BLOCKQUOTE></DIV><BR><DIV> <SPAN class=3D"Apple-style-span" = style=3D"border-collapse: separate; border-spacing: 0px 0px; color: = rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: = normal; font-variant: normal; font-weight: normal; letter-spacing: = normal; line-height: normal; text-align: auto; = -khtml-text-decorations-in-effect: none; text-indent: 0px; = -apple-text-size-adjust: auto; text-transform: none; orphans: 2; = white-space: normal; widows: 2; word-spacing: 0px; = "><DIV>---</DIV><DIV>Dan Milne <A = href=3D"mailto:d@nmilne.com">d@nmilne.com</A></DIV><DIV><A = href=3D"http://politiwiki.kicks-ass.net">http://politiwiki.kicks-ass.net</= A>/=A0<SPAN class=3D"Apple-converted-space">=A0</SPAN></DIV><BR = class=3D"Apple-interchange-newline"></SPAN> </DIV><BR></BODY></HTML>= --Apple-Mail-1--607198866-- --===============1767771820== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ stunnel-users mailing list stunnel-users@mirt.net http://stunnel.mirt.net/mailman/listinfo/stunnel-users --===============1767771820==-- 
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