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#1: Apache 2.2.x with Virtual IPs

Posted on 2010-10-06 05:27:52 by Pravesh Rai

--000e0cd32f6cd31d260491ea5ca8
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Hi All,

Observed that Apache 2.2.6 (& .15) throws exception inconsistently, at
different places, when the setup (Windows 2003 x86, with 4-12 GB RAM) is
configured with many Virtual IPs. This behavior differs on different setups.
On some setup, it fails even with 10-15 VIPs, but on the other, it fails
with more than 40 VIPs.

Here is the snapshot of Apache configuration:

---------
Timeout 300
KeepAlive Off
#MaxKeepAliveRequests 100
#KeepAliveTimeout 15
ErrorDocument 404 /notfound.php
<IfModule worker.c>
StartServers 1
MaxClients 250
MinSpareThreads 250
MaxSpareThreads 250
ThreadsPerChild 250
ServerLimit 1
MaxRequestsPerChild 0
</IfModule>
<IfModule perchild.c>
NumServers 5
StartThreads 5
MinSpareThreads 5
MaxSpareThreads 10
MaxThreadsPerChild 20
MaxRequestsPerChild 0
</IfModule>
<IfModule mpm_winnt.c>
ThreadsPerChild 250
MaxRequestsPerChild 0
</IfModule>
UseCanonicalName Off
<Directory />
Options FollowSymLinks
AllowOverride None
#IP_RESTRICTION_BLOCK
</Directory>
ProxyRequests Off
SSLPassPhraseDialog builtin
SSLSessionCache shmcb:logs/scache(512000)
SSLSessionCacheTimeout 300
SSLMutex default
SSLRandomSeed startup builtin
SSLRandomSeed connect builtin
-----------

Do anybody has any clue on this ?

Thanks,
Pravesh

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<div>Hi All,</div>
<div>=A0</div>
<div>Observed that Apache 2.2.6 (&amp; .15) throws exception inconsistently=
, at different places, when the setup (Windows 2003 x86, with 4-12 GB RAM)=
=A0is configured with many Virtual IPs. This=A0behavior differs on differen=
t setups. On some setup, it fails even with 10-15 VIPs, but on the other, i=
t fails with more than 40 VIPs.</div>

<div>=A0</div>
<div>Here is the snapshot of Apache configuration:</div>
<div>=A0</div>
<div>---------</div>
<div>Timeout 300<br>KeepAlive Off<br>#MaxKeepAliveRequests 100<br>#KeepAliv=
eTimeout 15<br>ErrorDocument 404 /notfound.php<br>&lt;IfModule worker.c&gt;=
<br>StartServers         1<br>MaxClients      =
  =A0 250<br>MinSpareThreads     250<br>
MaxSpareThreads     250<br>ThreadsPerChild     250<br>Serve=
rLimit        =A0 1<br>MaxRequestsPerChild=A0 0<br>&lt;/IfM=
odule&gt;<br>&lt;IfModule perchild.c&gt;<br>NumServers      =A0=
  =A0 5<br>StartThreads         5<br>MinSpareThreads=A0=
     5<br>
MaxSpareThreads     10<br>MaxThreadsPerChild=A0 20<br>MaxRequestsPe=
rChild=A0 0<br>&lt;/IfModule&gt;<br>&lt;IfModule mpm_winnt.c&gt;<br>Threads=
PerChild 250<br>MaxRequestsPerChild=A0 0<br>&lt;/IfModule&gt;<br>UseCanonic=
alName Off<br>
&lt;Directory /&gt;<br>  =A0 Options FollowSymLinks<br>  =A0 AllowO=
verride None<br>#IP_RESTRICTION_BLOCK<br>&lt;/Directory&gt;<br>ProxyRequest=
s Off<br>SSLPassPhraseDialog=A0 builtin<br>SSLSessionCache    =A0=
  =A0 shmcb:logs/scache(512000)<br>
SSLSessionCacheTimeout=A0 300<br>SSLMutex=A0 default<br>SSLRandomSeed start=
up builtin<br>SSLRandomSeed connect builtin<br>-----------</div>
<div>=A0</div>
<div>Do=A0anybody has any clue on this ?</div>
<div>=A0</div>
<div>Thanks,</div>
<div>Pravesh</div>

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#2: Re: Apache 2.2.x with Virtual IPs

Posted on 2010-10-06 05:50:12 by Craig Huffstetler

> Doàanybody has any clue on this ?

Can you show us an error log and/or the exceptions given? Also, what
are the "different setups?" I would start to guess at problems given
your configuration, but would love to see what errors are actually
being produced.

Thanks,

Craig

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#3: Re: Apache 2.2.x with Virtual IPs

Posted on 2010-10-06 06:08:56 by Pravesh Rai

--000e0cd1a52eb3ee600491eaef19
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Attached is the error log.

Thanks.

On Wed, Oct 6, 2010 at 9:20 AM, Craig Huffstetler <
craig.huffstetler@gmail.com> wrote:

> > Do anybody has any clue on this ?
>
> Can you show us an error log and/or the exceptions given? Also, what
> are the "different setups?" I would start to guess at problems given
> your configuration, but would love to see what errors are actually
> being produced.
>
> Thanks,
>
> Craig
>

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<div>Attached is the error log.</div>
<div>=A0</div>
<div>Thanks.<br><br></div>
<div class=3D"gmail_quote">On Wed, Oct 6, 2010 at 9:20 AM, Craig Huffstetle=
r <span dir=3D"ltr">&lt;<a href=3D"mailto:craig.huffstetler@gmail.com">crai=
g.huffstetler@gmail.com</a>&gt;</span> wrote:<br>
<blockquote style=3D"BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex=
; PADDING-LEFT: 1ex" class=3D"gmail_quote">
<div class=3D"im">&gt; Do=A0anybody has any clue on this ?<br><br></div>Can=
you show us an error log and/or the exceptions given? Also, what<br>are th=
e &quot;different setups?&quot; I would start to guess at problems given<br=
>
your configuration, but would love to see what errors are actually<br>being=
produced.<br><br>Thanks,<br><font color=3D"#888888"><br>Craig<br></font></=
blockquote></div><br>

--000e0cd1a52eb3ee540491eaef17--
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#4: Re: Apache 2.2.x with Virtual IPs

Posted on 2010-10-06 06:29:27 by Craig Huffstetler

> Attached is the error log.

Have you recompiled mod_ssl and updated OpenSSL?

Craig

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#5: Re: Apache 2.2.x with Virtual IPs

Posted on 2010-10-06 07:12:58 by Pravesh Rai

--00504502c156b17b6d0491ebd43f
Content-Type: text/plain; charset=ISO-8859-1

Openssl & Apache (all modules) has been recompiled.

Thanks.

On Wed, Oct 6, 2010 at 9:59 AM, Craig Huffstetler <
craig.huffstetler@gmail.com> wrote:

> > Attached is the error log.
>
> Have you recompiled mod_ssl and updated OpenSSL?
>
> Craig
>

--00504502c156b17b6d0491ebd43f
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<div>Openssl &amp; Apache (all modules) has been recompiled.</div>
<div>=A0</div>
<div>Thanks.<br><br></div>
<div class=3D"gmail_quote">On Wed, Oct 6, 2010 at 9:59 AM, Craig Huffstetle=
r <span dir=3D"ltr">&lt;<a href=3D"mailto:craig.huffstetler@gmail.com">crai=
g.huffstetler@gmail.com</a>&gt;</span> wrote:<br>
<blockquote style=3D"BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex=
; PADDING-LEFT: 1ex" class=3D"gmail_quote">
<div class=3D"im">&gt; Attached is the error log.<br><br></div>Have you rec=
ompiled mod_ssl and updated OpenSSL?<br><font color=3D"#888888"><br>Craig<b=
r></font></blockquote></div><br>

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