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* Make this function applicable to "ipreallocated" event too.
* Monitor event should not always succeed just because we reconfigure.
If the service was unhealthy before the reconfigure and we end the
reconfigure with "exit 0" then we can cause the node's health status
to flip-flop.
To avoid this we return the status of the service from the previous
monitor event.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 21dfcbbdccd906fcd6ab7bba81418ce565bf63aa)
Samba doesn't need to do anything for configuration changes. It will
notice configuration changes and reload automatically.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit de13350c17261032a7468c2cf4d2cf4a8d66a840)
* 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)
This should eventually be able to replace ctdb_check_counter_limit()
and ctdb_check_counter_equal(), although it doesn't issue warnings
like the former.
It takes 4 optional arguments:
1. _msg - If "error" then over limit causes an error message and and
exit 1. Anything else fails silently but the function returns 1.
Default is "error".
2. _op - An integer operator supported by test (e.g. -eq, -ge, -gt).
Default is -ge.
3. _limit - Limit for the counter to be used in comparison. Default is
$service_fail_limit.
4. _service_name - Used to identify the counter. Default is
$service_name.
For example:
ctdb_check_counter error -ge 5 foo
will print a message and exit 1 if the counter for foo is >= 5,
whereas
ctdb_check_counter check -ge 5 foo
will just return 1 if the counter for foo is >= 5, and
ctdb_counter_check
with print a message and exit 1 if the counter for $service_name is >=
$service_fail_limit.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 5b01b7233515669e995e037205796e265643b176)
When stopping (as opposed to restarting) it is useful to see this
information.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit a9ab1937239761dc32b143c9d225447bc6f090b4)
d362be7d32079ac1390d67056ce107bfbca2c937 wasn't well thought out.
Subsequent commits depend on ctdb_counter_init() taking an argument,
so this makes those cases work.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 05a8fcfbac3da2b5843b31e0fe258255cc761190)
Signed-off-by: Martin Schwenke <martin@meltin.net>
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 0f003f05e28037eefdce3a686fcb52cd2289af9d)
The state directory basename becomes "nfs" rather than "statd". One
line of code i moved from the "startup" event to service_start().
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit cc4c5c19af7efe01c48f73bb5ec5e607ed79db4c)
To simplify we also remove the reconfigure from the recovered event
because the monitor event will handle this very quickly anyway.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit da3aedd1a472b430b75989d3c157efedd382e327)
* 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)
Move flagging of managed or unmanaged services into
ctdb_service_start() and ctdb_service_stop(). That way services will
be correctly flagged if they are started from the startup and shutdown
events.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 8675744cbd90b5a5095ed6fff7b36ae82004a457)
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)
This function generates a lot of trace when running under "set -x".
This is due to the backward compatibility code.
This adds 3 optimisations:
1. Before invoking the backward compatiblity code,
is_ctdb_managed_service() returns early if the service is listed in
$CTDB_MANAGED_SERVICES.
2. ctdb_compat_managed_service() actually now updates
$CTDB_MANAGED_SERVICES instead of temporary variable $t.
This means that a subsequent call to is_ctdb_managed_service() will
short circuit due to optimisation (1).
3. ctdb_compat_managed_service() only adds a service to
$CTDB_MANAGED_SERVICES if it is the service being checked by
is_ctdb_managed_service().
This stops irrelevant services being added to
$CTDB_MANAGED_SERVICES multiple times by multiple calls to
is_ctdb_managed_service().
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 758f4667c60089e09a0439c1eb74f5e426ca5e2e)
Currently it checks $CTDB_MANAGES_WINBIND directly in several places.
This doesn't work when someone sets $CTDB_MANAGED_SERVICES directly.
This modifies check_ctdb_manages_winbind() so that it return a
condition rather than modifying $CTDB_MANAGES_WINBIND. This makes
some code more readable.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 538902fbc1e74134a03987b36b3733ad641f8971)
Currently it checks $CTDB_MANAGES_SAMBA directly. This doesn't work
when someone sets $CTDB_MANAGED_SERVICES directly.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit d8f0f8948abd340088720718fef7dc858661ba23)
When the value of $CTDB_MANAGES_SAMBA or $CTDB_MANAGES_WINBIND (or
corresponding changes are made to $CTDB_MANAGED_VERSIONS), the
associated service should be started or stopped as necessary.
This add calls to ctdb_start_stop_service() to manage
starting/stopping samba and winbind.
An associated cleanup is made to the initial checks that one of
$CTDB_MANAGES_SAMBA or $CTDB_MANAGES_WINBIND is set, replacing them
with calls to is_ctdb_managed_service().
To handle the winbind cases ctdb_start_stop_service() and
is_ctdb_managed_service() are updated to take an optional service name
parameter.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Conflicts:
config/events.d/50.samba
Most of this merged elsewhere. This just removes a check that
this is the monitor event.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 257a2e350280c0b76ed2fac588cad167381fda52)
Also remove some unnecessary absolute paths for commands, which were
making the code slightly difficult to read.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 1b3f2dd62efb240f8486016fe0f8dfb73d6ccc66)
This also fixes a bug where update_config_from_tdb() used an incorrect
filename in one place.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit a5ce2adaa39f077f56582072a97bb64d0eba4b4d)
Without this you can get into a situation where ctdbd can not start.
If the active file for a service exists but the service is not
running, then trying to stop the service may fail, causing the
eventscript to exit from ctdb_start_stop_service().
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 28379ca0f747c5952d690a451834ce7421adfd34)
This includes a comment about using POSIX Bourne shell, including a
suggestion not to use "local" variables.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 5ae002c7513b1b2aa5136437a1a19f8cd179b869)
To be used by eventscripts to create a per-service directory for their
own state data. $service_state_dir is set to point to the new
directory.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit a273554791c2a5281aee28f8e2be0c514e14c91e)
