RE: backhand selects a different host but then executes locally - and shows port 0 in /backhand/

Hello,

using balanced_by_mod_backhand/1.2.0 on both machines (instead of mixing
1.2.2 and 1.2.0) works!

I am only surprised about one thing: Both machines show 1056559794 as "Age"
for themselves (the other one is always 1 or 0).

Is this a problem, for example with byAge which should remove crashed hosts?

And: Can I use 1.2.0 without fear or are there really important improvements
or removed-bugs in 1.2.2? The ChangeLog lists some bugs with byBusyChildren
but the rest seems to be not sooo important (to me).

Thomas




> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Theo
> Schlossnagle
> Sent: Wednesday, June 25, 2003 4:15 AM
> To: [email protected]
> Cc: Theo Schlossnagle
> Subject: Re: [m_b_users] backhand selects a different host but then
> executes locally - and shows port 0 in /backhand/
>
>
>
> On Tuesday, Jun 24, 2003, at 03:56 US/Eastern, Thomas Buehren wrote:
> > This is the configuration (in parts) of 192.168.100.1 and
> > 192.168.100.8 - I
> > have even changed the port on the second box to 3001 to see whether
> > this
> > makes any difference in the /backhand/ output (it does not). I have
> > also
> > removed the listen 443 line so there is only one listen line but it
> > does not
> > help.
> >
> > 192.168.100.1:
> >
> >   UnixSocketDir /var/state/backhand
> >   MulticastStats 192.168.100.1:80 192.168.100.8:4445
>
> MulticastStats expects the last argument to be a valid broadcast
> address or multicast address.  That is neither.
>
> Try:
> 225.168.100.1:4445,1 on both machines (a valid multicast address)
>
> Or, if you can't/don't want to use multicast use the valid broadcast
> address for these machines.  It is likely:
> 192.168.100.255:4445
>
> >   AcceptStats 192.168.100.0/24
> >   <Location "/backhand/">
> >     SetHandler backhand-handler
> >     Order deny,allow
> >     Deny from all
> >     Allow from localhost
> >     Allow from 192.168.100
> >
> > NameVirtualHost 192.168.100.1:80
> > <VirtualHost 192.168.100.1:80>
> >     ServerAdmin [email protected]
> >     DocumentRoot /usr/local/httpd/htdocs/genieuk
> >     ServerName virtualhost.peperoni.de
> >     ErrorLog  "|rotatelogs
> > /usr/local/httpd/htdocs/genieuk/stats/error_log
> > 86400"
> >     CustomLog "|rotatelogs
> > /usr/local/httpd/htdocs/genieuk/stats/access_log
> > 86400" combined
> >     JkMount /servlet/* ajp12
> >     AddType application/x-httpd-php .php3
> > </VirtualHost>
> > <Directory "/usr/local/httpd/htdocs/genieuk">
> >     Backhand removeSelf
> >     Backhand byAge
> >     Backhand byRandom
> >     Backhand byCPU
> >     BackhandLogLevel +netall,+mbcsall,+dcsnall
> > </Directory>
> >
> >
> > 192.168.100.8:
> >
> >   UnixSocketDir /var/lib/backhand
> >   MulticastStats 192.168.100.8:3001 192.168.100.1:4445
> >   AcceptStats 192.168.100.0/24
> >   <Location "/backhand/">
> >     SetHandler backhand-handler
> >     Order deny,allow
> >     Deny from all
> >     Allow from localhost
> >   </Location>
> >
> > NameVirtualHost 192.168.100.8:3001
> > <VirtualHost 192.168.100.8:3001>
> >     ServerAdmin [email protected]
> >     DocumentRoot /usr/local/httpd/htdocs/genieuk
> >     ServerName virtualhost.peperoni.de
> >     ErrorLog  "|rotatelogs
> > /usr/local/httpd/htdocs/genieuk/stats/error_log
> > 86400"
> >     CustomLog "|rotatelogs
> > /usr/local/httpd/htdocs/genieuk/stats/access_log
> > 86400" combined
> >     JkMount /servlet/* ajp12
> >     AddType application/x-httpd-php .php3
> > </VirtualHost>
> >
> >
> >
> > These are the software versions (we have one new server but cannot
> > completely re-install the old server as it is already productive):
> >
> > 192.168.100.1:
> > Apache/1.3.20 (Linux/SuSE) mod_jk/1.2.2 balanced_by_mod_backhand/1.2.0
> > PHP/4.0.6 mod_ssl/2.8.4 OpenSSL/0.9.6b
> >
> > 192.168.100.8:
> > Apache/1.3.27 (Linux/SuSE) mod_jk/1.2.2 PHP/4.3.1 mod_perl/1.27
> > mod_ssl/2.8.12 OpenSSL/0.9.6i mod_backhand/1.2.2
> >
> >
> > I hope that someone can help me finding a solution for this strange
> > behavior!!
> >
> > Thomas
> >
> > PS: I tried to use the mod_backhand/1.2.2 from the new server on the
> > old
> > one. But this is what happens:
> > Cannot load /usr/lib/apache/mod_backhand.so into server:
> > /lib/libc.so.6:
> > version `GLIBC_2.3' not found (required by
> > /usr/lib/apache/mod_backhand.so)
> > Is there any way of trying the new version without the risk of hurting
> > the
> > system by installing new versions of everything?
>
> Sounds like you have differing version of glibc on that machines --
> Thank Linux for that, ugh.  Compile things on the older box if you want
> to be able to move them around as binaries -- you'll likely have better
> luck.
>
>
> --
> Theo Schlossnagle
> Principal Consultant
> OmniTI Computer Consulting, Inc. -- http://www.omniti.com/
> Phone:  +1 410 872 4910 x201     Fax:  +1 410 872 4911
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>
>
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