I'm running a custom compiled Apache 2 which is managed by SMF. The manifest
and method files I'm using are copies of the files shipped with Solaris 10
(network/http-apache2), except that they have a different path to apache's
files.
I'm currently having two problems though:
1. Periodically (I'm still looking into why this is happening), apache dies,
leaving behind a defunct process. SMF sees that the apache process isn't
running, so tries to restart it. It seems to be unable to kill the defunct
process as part of its stop method though.
Looking in /var/svc/log/network-http-CSWapache2, there were the messages:
[ Nov 22 03:10:03 Stopping because service restarting. ]
[ Nov 22 03:10:03 Executing stop method ("/lib/svc/method/http-CSWapache2
stop") ]
[ Nov 22 03:10:04 Method "stop" exited with status 0 ]
[ Nov 22 03:11:04 Method or service exit timed out. Killing contract 108 ]
[ Nov 22 03:11:05 Method or service exit timed out. Killing contract 108 ]
[ Nov 22 03:11:06 Method or service exit timed out. Killing contract 108 ]
This message was repeated every second in the log for several hours.
Looking at the output of 'ctstat -i 108 -v':
CTID ZONEID TYPE STATE HOLDER EVENTS QTIME NTIME
108 0 process owned 7 0 - -
cookie: 0x20
informative event set: none
critical event set: core signal hwerr empty
fatal event set: none
parameter set: inherit regent
member processes: 3158
inherited contracts: none
Using the 'ps' command then showed process 3158 as a defunct apache process,
which I'm guessing SMF wasn't able to kill.
After removing the defunct process with 'preap 3158', then the messages about
contract 108 in the log files stopped.
Is there any way to avoid this requiring manual intervention if it happens
again?
2. After fixing the problem mentioned above, I'm unable to clear the
maintenance state on this service.
I manually set the maintenance state using:
bash-3.00# svcadm -v mark maintenance http-CSWapache2
Action maint_on set for svc:/network/http-CSWapache2:CSWapache2.
I then tried to clear this state using:
bash-3.00# svcadm -v clear http-CSWapache2
Action maint_off set for svc:/network/http-CSWapache2:CSWapache2.
However, if I use svcs to report on the state of this service, it still reports
it as in maintenance:
bash-3.00# svcs -xv http-CSWapache2
svc:/network/http-CSWapache2:CSWapache2 (Apache 2 HTTP server)
State: maintenance since 22 November 2007 12:28:35 GMT
Reason: Maintenance requested by an administrator.
See: http://sun.com/msg/SMF-8000-63
See: man -M /opt/csw/apache2/man -s 8 httpd
Impact: This service is not running.
How can I force svcadm to clear this state?
Thanks in advance,
Dave
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