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* Reduce the failure counts so that restart attempts happen sooner.
* Use service_start() and service_stop() for the restart.
ctdb_service_start() resets the failure count, which isn't very
useful in this context.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 01776b9f29af9ad5c8534649ece1bd100e450434)
* Add an optional service name argument to existing reconfigure
functions.
* User function service_reconfigure() instead of variable
$service_reconfigure to specify how a service is reconfigured.
* New function ctdb_service_check_reconfigure() reconfigures a service
if it is flagged for reconfigure.
* Remove $service_reconfigure settings from 40.vsftpd and 41.httpd -
they're the defaults.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 15d4111d0761d82f57d5d4f0b1227812d14e4d7c)
service_start is currently a variable. This makes passing arguments
hard. We change it to be a function and put default definitions into
the functions file.
We use a convention that if a service name argument is passed to a
redefined version of service_start() or service_stop() then it will
act unconditionally. If no argument is passed then it can use
internal logic to decide if services should really be started. This
is useful when a single eventscript handles multiple services.
This is a cherry-pick of ae38895 that needed to be reset mid-stream.
There is still some breakage following this commit.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 86e4aefed9fd1028660c98e3ea758c2b75ffc1d8)
Httpd can be very slow to start on some platforms,
wait 5 monitor intervals before we try to restart it if
it has not bound to port 80 yet.
After 10 failed intervals, flag the node as unhealthy.
(This used to be ctdb commit 6ec1993aa5f2778b8227ce5f6eca0d19e4ae9788)
The functions file no longer causes a side-effect by doing a shift.
It also doesn't set a convenience variable for $1.
All eventscripts now explicitly use "$1" in their case statement, as
does the initscript. The absence of a shift means that the
takeip/releaseip events now explicitly reference $2-$4 rather than
$1-$3.
New function ctdb_standard_event_handler handles the status and
setstatus events, and exits for either of those events. It is called
via a default case in each eventscript, replacing an explicit status
case where applicable.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 3d55408cbbb3bb71670b80f3dad5639ea0be5b5b)
This is the first stage of an experimental change to eventscripts.
Ronnie and I did a few hours of factorisation of 40.vsftpd and applied
many of the changes to 41.httpd. Other eventscripts were also
modified.
At this stage this is completely untested.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 364e70b763f0ccd7714d15723ad3ea4d7e2968a1)
RHEL5 can SIGKILL httpd when stopping it, causing it to leak
semaphores. This means that eventually a node runs out of semaphores
and httpd can't be started. So, before we attempt to start httpd we
clean up any semaphores owned by apache. We also try to restart httpd
in the monitor event if httpd has gone away.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 2d3fbbbb63f443686f9fec42c0bc2058d115806e)
The httpd service on suse and ubuntu/debian systems is usually
called "apache2" nowadays.
Note: There are older installs with Apache 1.3 out there, in which case
the service is called "apache". An extra check for these installs could
be useful as a sequel to this patch...
Michael
(This used to be ctdb commit b9e50e3416fecef6a881be3f1b91be977299293f)
