[hobbit] "hobbitd status-board not available" from bbgen on solaris 10

[T.J. Yang]

1. stop hobbit server
2. zero out the existing log file
3. apply the online fix
4. So far so good, I can confirm the status-board error message is now gone 
;)

bash-3.00# grep -i status-board  *.log
bash-3.00# pwd
/var/opt/hobbitserver42/log
bash-3.00# ls *.log
acknowledge.log    cgierror.log       hobbitlaunch.log   rrd-data.log
bb-display.log     clientdata.log     hobbitlaunch.pid   rrd-status.log
bb-network.log     history.log        hostdata.log
bb-retest.log      hobbitd.log        notifications.log
bbcombotest.log    hobbitd.pid        page.log
bash-3.00# cat /etc/release
                       Solaris 10 6/06 s10s_u2wos_09a SPARC
           Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.
                        Use is subject to license terms.
                             Assembled 09 June 2006
bash-3.00#


Good job on track down the cause on providing the fix.

T.J. Yang





>From: Colin Spargo <cspargo2 at csc.com>
>Reply-To: hobbit at hswn.dk
>To: hobbit at hswn.dk
>Subject: [hobbit] "hobbitd status-board not available" from bbgen on 
>solaris 10
>Date: Thu, 19 Apr 2007 12:30:23 +0100
>
>If anyone has been having issues with bbgen logging this error mesage on
>Solaris 10 and intermittently  failing, resulting in blank status pages,
>then I think I have found a workaround.
>
>If you disable TCP fusion be adding the following kernel parameter to
>/etc/system and reboot, hopefully you will find that the problem goes
>away.
>
>set ip:do_tcp_fusion = 0
>
>Apparently this can be done on a live system as well (without rebooting),
>but will require hobbit to be restarted. To do this:
>
>echo do_tcp_fusion/W0 | mdb -kw
>
>
>TCP fusion is only used on local loopback connections to speed them up by
>bypassing the normal TCP stack. I found that the problem only occured when
>connecting to hobbitd locally. I tried running "bb localhost hobbitdboard"
>once a second, and found it would often return no data, but if I ran the
>same command from another host to the hobbit server, it always returned
>correct data. This made me suspect TCP fusion, as I have run into issues
>with it before. It it is best left disabled in my opinion.

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