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Drop function loadconfig(), replacing uses with "load_system_config
ctdb". Drop translation of old-style configuration to new
configuration file. Drop export of debugging variables. Drop
documentation and configuration examples.
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): Thu May 17 07:03:04 CEST 2018 on sn-devel-144
This allows the relevant command-line options to be removed from the
daemon while still leaving the old ctdbd.conf options file in place.
It is a temporary measure to enable testing in an old testing
environment.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This must harken back to the days of yore when corrupt persistent
databases were an issue. We haven't seen this used. If CTDB fails to
start due to a corrupt persistent database then this database can be
removed by hand.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
These should be done using features provided by the operating system.
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): Sat May 12 09:13:28 CEST 2018 on sn-devel-144
CTDB has no business mounting filesystems. Instead, documentation
for the new configuration system will include a recommendation that a
tmpfs be mounted on the volatile database directory.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
After configuration changes ctdbd_wrapper will no longer see the
CTDB_RECOVERY_LOCK option. The daemon already logs a warning if the
recovery lock is not set, so simply drop this extra warning.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is too inflexible for general use. There is no use finding a new
home for this in the new configuration scheme.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Notification scripts are installed into $CTDB_BASE/notify.d/ and are
always run by notify.sh. Leave notify.sh where it is for now but no
longer consider it a configuration file. This is an interim measure
and will be changed again soon.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
loadconfig() currently tries to load the CTDB configuration and also
any system configuration relevant to the current (event) script.
Instead add a new function load_system_config() to load the
distribution-specific system configuration for a component. Call this
directly in the rare scripts that need the system configuration.
Also call load_system_config when loading the CTDB configuration to
pull in anything from the CTDB system configuration. This is partly
for backward compatibility but also to get options that can be used
anywhere.
loadconfig() no longer takes an argument. It simply loads the CTDB
configuration.
Drop support for falling back to /etc/ctdb/sysconfig/ctdb (or
similar). Surely there's nobody who uses that!
Also, drop the indirection where loadconfig() calls _loadconfig().
This was used years ago as a test hook and is no longer required.
Inexplicably, this change introduces a new shellcheck test failure, so
silence this.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Tests now deviate from the compile-time default by setting CTDB_BASE.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
The interface must always be specified in the public addresses file.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This option adds a lot of unnecessary complexity to scripts.
Configuration should go in $CTDB_BASE, either directly or via a
symlink, so simplify by using the default location.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Event scripts live in a standard place.
For testing, CTDB_BASE is modified.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Use the default compile-time PID file.
Use a CTDB_PIDFILE environment variable when testing.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is already created by installation and/or packaging.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
All of this logic was necessary when ctdbd did poor PID file and
socket handling. Those things are now solid, so remove this
unnecessary logic.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
The code has been broken since commit
4b652c1527afe7eff4075c95946abfa114d74015.
If ctdbd isn't all the way up in time just make a basic attempt to
shut it down.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This was an attempt to debug an unexpected situation. It never
triggered, so delete it and all supporting code.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is an optimisation that can cause incorrect results. If ctdbd
was killed and there is a stale PID file then this will often cause
"CTDB exited during initialisation". The wrapper reads the old PID
from the PID file, finds the PID gone, complains and exits.
It is better to drop this code and finally get this right. If ctdbd
does exit early then it will take CTDB_STARTUP_TIMEOUT (default 10)
seconds before the wrapper fails. That's not too bad...
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Don't just rely on the process existing. It must be called "ctdbd".
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 Oct 14 11:54:40 CEST 2016 on sn-devel-144
The PID file has been used since CTDB 2.3. Assume that anyone
upgrading from an older version does a clean shutdown, upgrades CTDB
and then does a clean start (as opposed to upgrade CTDB and then
restart).
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Volker Lendecke <vl@samba.org>
kill_ctdbd() kills the daemon and then removes the PID file. This is
racy because a new daemon could write a new PID file in between the
kill and the removal. Reversing these steps would be an improvement.
However, none of the places where kill_ctdbd() is called is a safe
place to remove the PID file. There is always a chance that a new
daemon could start, write a new PID file and then kill_ctdbd() could
remove the new PID file.
ctdbd is able to overwrite a stale PID file by checking to see if it
is locked.
Therefore, entirely drop removal of the PID file from ctdbd_wrapper.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12287
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Volker Lendecke <vl@samba.org>
SC2039: In POSIX sh, ulimit -c/-n is not supported.
Have shellcheck suppress the warnings. If -n is not supported then
don't set CTDB_MAX_OPEN_FILES. If packaging for a platform where -c
is not supported then remove this code and associated documentation.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2119: Use FUNC "$@" if function's $1 should meanscript's $1.
SC2120: FUNC references arguments, but none are ever passed.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2046: Quote this to prevent word splitting.
SC2086: Double quote to prevent globbing and word splitting.
Add some quoting where it makes sense. Use shellcheck directives for
false-positives.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This avoids relevant shellcheck warnings. This is most of the
shellcheck low hanging fruit in the non-test code. Many of the other
warnings produced by shellcheck are either false positives, are
non-trivial to fix or a fix may result in worse code.
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 Jul 6 08:15:49 CEST 2016 on sn-devel-144
This makes ctdbd_wrapper usable in non-standard installs.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
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>
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>
Since commit 84f5528d9b526b1e9cb02c245e816c0c5e54c3bc, 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>
Required when automatic address detection can not be used. This can
be the case when running multiple ctdbd daemons/nodes on the same
physical host (usually for testing), using InfiniBand for the private
network or on Linux when sysctl net.ipv4.ip_nonlocal_bind=1.
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): Mon Apr 27 06:10:08 CEST 2015 on sn-devel-104
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11007
Signed-off-by: Oleksandr Chumachenko <ledest@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
Some implementations may not understand RC3164 format messages on the
UDP socket, so add support for RFC5424 message format.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This has most of the advantages of the old logd with none of the
complexity of the extra process. There are several good syslog
implementations that can listen on the UDP port.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Remove --logfile and --syslog daemon options and replace with
--logging.
Modularise and clean up logging initialisation code. The
initialisation API includes an app_name argument that is currently
unused - this will be used in extensions to the syslog backend.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
As far as we know, nobody uses this and it just complicates the
logging subsystem.
Remove all ringbuffer code and documentation. Update the local
daemons startup code correspondingly.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Volker Lendecke <vl@samba.org>
Variables that are not set but exported, may return an empty string
for getenv(). Tested on freebsd.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Wed Sep 17 09:55:47 CEST 2014 on sn-devel-104
