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The underlying change is to allow the cluster mutex argstring to
optionally contain a helper command. When the argument string starts
with '!' then the first word is the helper command to run. This is
now the standard way of changing the helper from the default.
CTDB_CLUSTER_MUTEX_HELPER show now only be used to change the location
of the default helper when testing.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This will handle the most obvious cases. It won't handle the case
where the directory is missing and the recovery lock location is
updated at run-time. However, this is a good improvement.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
On cluster where recovery lock file is not being used, asking CTDB daemon
is unnecessary overhead. And if CTDB is using recovery file, then changing
configuration without restarting is *stupid*.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Pair-Programmed-With: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 44eb86e6042adb6efe75d2a5528b82a0f21d496d)
ctdb_check_counter_limit() can soon be removed...
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit bb2cdff77e8ec79e7d319159b9c9848ecfaaa0f1)
It is in the background but it still might cause the counter to be
reset before it is checked.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit ef2cf75e95ff382c65524a4d77eb00ab8411d2fc)
That way we don't even check the counter...
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 136abd4604dc68f7c696704bac708bae53cf1940)
This makes it easier to run the scripts externally.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit 740ea8ea5084149c8b552a01ee1c98c558b12384)
This is needed because the "startup" event runs after the initial recovery,
but we need to do some actions before the initial recovery.
metze
(This used to be ctdb commit e953808449c102258abb6cba6f4abf486dda3b82)
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)
Leave the node as UNHEALTHY this stops clients from accessing the node until
the reclock file can be accessed again
(This used to be ctdb commit f5e9f3007c10a937158bc8cdfabf33c984cf9c50)
test -z really needs its argument to be quoted. Simplified a status
test.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit fe26da7780545b1ecc0a7da5bc1cf8beaeea94cc)
Change the monitor event in 40.vsftpd so it only fails if there are 2
successive failures connecting to port 21. This reduces the
likelihood of unhealthy nodes due to vsftpd being restarted for
reconfiguration due to node failover or system reconfiguration.
New eventscript functions ctdb_counter_init, ctdb_counter_incr,
ctdb_counter_limit. These are used to count arbitrary things in
eventscripts, depending on the eventscript name and a tag that is
passed, and determine if a specified limit has been hit. They're good
for counting failures!
These functions are used in 40.vsftpd and also in 01.reclock - the
latter used to do the counting without these functions.
Signed-off-by: Martin Schwenke <martin@meltin.net>
(This used to be ctdb commit cfe63636a163730ae9ad3554b78519b3c07d8896)
if the reclock file has been set, then this script will test that the
reclock file can actually be accessed.
if the file does not exist, or if the attempts to stat the file hangs,
the node will be marked unhealthy after the third failed monitoring event
and after the tenth failure, ctdb itself will shutdown.
(This used to be ctdb commit 2cb04747887674def299e574fccb827c1c3194e7)
