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This makes ctdbd_wrapper usable in non-standard installs.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This generates takeip-pre and releaseip-pre call-out events.
One use is to put NFS into grace before an IP is assigned to an
interface.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
A second NFS eventscript may be required, so make this code available
to it.
The initialisation code can't be evaluated in the functions file
because service_state_dir isn't yet setup, so put it in a function and
call it with other initialisation code.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This doesn't need to print the family. Nothing uses it.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Block and unblock IP addresses using these new functions. This makes
the code more readable.
The case statement in each function is very cheap, so there is no need
to prematurely optimise and pass the family.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
CTDB_INIT_STYLE isn't used in this script.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Kai Blin <kai@samba.org>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Fri May 20 21:06:18 CEST 2016 on sn-devel-144
Some Linux distributions don't have a "service" compatibility command.
To avoid breaking working systems, prefer the "service" compatibility
command just in case it does some extra, unexpected magic.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Kai Blin <kai@samba.org>
Add CTDB_NFS_STATE_FS_TYPE and CTDB_NFS_STATE_MNT config options, show use in
nfs-ganesha-callout. Since the callout script is only an example, we
officially don't have default values for these.
Signed-off-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
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>
When external monitoring is enabled for an NFS service using
service_check_cmd then $ctdb_check_rpc_out is empty because the
internal RPC checking isn't used. This results in empty log messages
like:
60.nfs: ERROR:
or:
60.nfs: WARNING:
Improve this so it at least says:
60.nfs: ERROR: monitoring service "statd" failed
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Don't do a percentage calculation for either memtotal or swaptotal if they
are zero.
Signed-off-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
ss with a filter is much faster than post-processing output from
netstat. CTDB already has a hard dependency on iproute2 for IP
address handling, so depending on ss is no big deal.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This currently causes monitor failure.
Log a warning instead. If there is a transient issue, such as NFS
being restarted in the background, then the thread count file should
be there the next time around so the count can be adjusted if
necessary.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
For "master", if there is a master then print the PNN, otherwise print
nothing.
For "list", print the PNN and IP addresses without a colon in between.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
To keep this commit comprehensible, 91.lvs and the CTDB CLI tool are
temporarily inconsistent. The tool will be made consistent in a
subsequent commit.
LVS now uses a configuration file specified by CTDB_LVS_NODES and
supports the same slave-only syntax as CTDB_NATGW_NODES. LVS also
uses new variable CTDB_LVS_PUBLIC_IFACE instead of
CTDB_PUBLIC_INTERFACE.
Update unit tests and documentation.
Note that the --lvs and --single-public-ip daemon options are no
longer used. These will be removed and relevant documentation
updated in a subsequent commit.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Having both "recovered" and "ipreallocated" means that everything
happens twice when there is a recovery. No need for that.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Basic error redirection improvements before writing tests.
Deleting the service during "startup" will usually fail because the
service has never been setup, so redirect output to avoid logging an
error.
Similarly, deleting the service in "ipreallocated" will always fail
the first time, which would cause an error to be logged. Given the
simplicity of the script, there's no sane way to avoid the error
sometimes and log it if it actually matters. This could potentially
be tidied up in the future by making 91.lvs stateful, in a similar way
to 11.natgw.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
ctdb_killtcp will take up to 5 seconds to kill connections, so don't
wait in a loop. Just check if there are remaining connections on
completion and log a message either way.
Also add a test stub.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This will be needed for a rewrite of the connection killing code but
it is not used yet.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is unnecessary in Samba >= 4.0 because winbindd monitors IP
address itself and no longer needs to be told when they are dropped.
The smbcontrol commands can hang if a node has recovery mode active
because smbcontrol is unable to connect to the registry. Therefore,
the smbcontrol commands should be removed.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11719
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Wed Feb 10 14:08:17 CET 2016 on sn-devel-144
Nothing checks it anymore.
This means that the NAT gateway capability in the daemon is now
unused.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
To keep this commit comprehensible, 11.natgw and the CTDB CLI tool are
temporarily inconsistent. The tool will be made consistent in a
subsequent commit.
ctdb_natgw_slave_only() is reimplemented to check for the option in
the appropriate line in $CTDB_NATGW_NODES.
Update unit tests and documentation.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This has always been the case. Now it is documented and enforced.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Now its name describes its usage and the code reads better.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Each is now used in only one place and the logic is more obvious
without them.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reduces intentation by using early returns.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Thu Jan 14 22:41:29 CET 2016 on sn-devel-144
Consider this sequence of events:
1. Instance of script running update_tickles() hangs
2. Script debugging is launched asynchronously
3. New instance of script is launched, creates temporary file(s)
4. Original hung script makes progress before asynchronous script
debugging kills it, so it removes temporary file(s)
5. New instance of script produces error due to missing files(s)
This is obviously rare.
Use more unique filenames to avoid step (4) removing the file(s)
belonging to other instances of the script.
This requires some extra cleanup to avoid too many temporary files
(which is why unique filenames were not originally usd). It is
sufficient to remove files modified at least 10 minutes ago.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
Whitespace and indentation improvements.
Remove comments describing events, since the README covers that much
better.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
The current code uses so many shell idioms that it is difficult to
follow.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
