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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>
Move information about TCP connection tracking and resetting into
ctdb.7.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Pair-programmed-with: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
exportfs can hang when, for example, DNS is flakey. Given that
exports don't change much, it makes sense to cache them.
Don't try to add error handling when exportfs fails but do print a
warning. Proper error handling can be added separately.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
These should be created elsewhere. If not then something is wrong, so
don't hide the problem.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Fri Nov 20 04:40:26 CET 2015 on sn-devel-104
Various scripts (including debug_locks.sh, 00.ctdb, 05.system) need
CTDB_DBDIR to point to the right place... but it doesn't.
Move the rewriting of CTDB_DBDIR to loadconfig() so that it happens
for all scripts. Have this code set internal variable
CTDB_DBDIR_TMPFS_OPTIONS so that ctdbd_wrapper can do the mount.
This loses the generality that was present in dbdir_tmpfs_start() but
it wasn't being used anyway. If it is needed in the future then it
will be in the git history.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Wed Nov 18 11:51:54 CET 2015 on sn-devel-104
The tmpfs is mounted and unmounted by ctdbd_wrapper. Format is
CTDB_DBDIR=tmpfs:<tmpfs-options>. The only default for the tmpfs is
mode=700 - to override, specify a different value in <tmpfs-options>.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Mon Nov 9 10:58:32 CET 2015 on sn-devel-104
This will make it easier to run things after CTDB is stopped.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Fri Nov 6 13:43:45 CET 2015 on sn-devel-104
Since commit 84f5528d9b, CTDB will not
remove an existing socket if it can connect to the existing one.
Instead it will fail to start.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Wed Oct 28 09:44:37 CET 2015 on sn-devel-104
If 2 attempts are made to start CTDB in quick succession then it is
possible for the 2nd attempt to remove a newly created PID file from
the 1st.
If the PID file existed then the PID/SID from ctdbd_is_running() will
be passed to kill_ctdbd(). If the PID file did not exist then there
is no point removing it.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
In this case: ctdbd_wrapper, onnode, ctdb_diagnostics, ctdb.sudoers.
Set sensible defaults from configure options.
Update documentation to match, trying to fix up anything that has been
missed before.
The onnode unit tests need a symlink to the functions file.
The simple integration tests need to set CTDB_BASE and also
need symlinks to functions/nodes.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
fixup
Signed-off-by: Martin Schwenke <martin@meltin.net>
This variable points to /etc/ by default.
This distinguishes it from the different variable from wscript, which
points to /etc/ctdb/.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Also fix an unused test to set CTDB_BASE.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Clearly identifies where all state files from scripts should go and
allows that location to be easily changed. This patch should not
change any behaviour (outside of eventscript unit tests, where a
clearer location is now used).
CTDB_VARDIR should no longer be overridden. Continue to set
CTDB_DBDIR and similar to override database location in unit tests.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
