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History

Martin Schwenke 205c7c7663 Eventscripts - enhance ctdb_replay_monitor_status() Print useful output and return a suitable exit code. The DISABLED and TIMEDOUT statuses use fake negative return codes, and these can't be faked from the shell. So we map DISABLED to OK and TIMEDOUT to ERROR - this should avoid nearly all surprises. When we do this we add a note to the beginning of the output. The alternative is to "fix" ctdbd to use only codes that can actually be returned by shell scripts. However, the reason for using negative codes is probably to distinguish them from real ones... Signed-off-by: Martin Schwenke <martin@meltin.net> (This used to be ctdb commit dda44d026e0c1b02feb02185b8c200a542be341a)		2011-08-31 15:34:43 +10:00
..
events.d	Eventscripts - call ctdb_check_args() in 00.ctdb	2011-08-30 09:33:47 +10:00
ctdb-crash-cleanup.sh	In the example script to remove all ip addresses after a ctdb crash,	2010-04-23 09:08:26 +10:00
ctdb.init	When starting and stopping ctdb through the init-script, make sure we first clear all public ips bvefore we start the daemon, in case they are still hanging around since a previous kill -9 and also make sure we drop them after we have stopped the deamon when shutting down	2011-08-11 11:48:04 +10:00
ctdb.sysconfig	Eventscripts: New configuration variable CTDB_SERVICE_AUTOSTARTSTOP.	2011-08-30 09:33:47 +10:00
functions	Eventscripts - enhance ctdb_replay_monitor_status()	2011-08-31 15:34:43 +10:00
gdb_backtrace	lib/util: import fault/backtrace handling from samba.	2010-01-20 09:44:36 +01:00
interface_modify.sh	Scripts: remove absolute paths from interface_modify.sh.	2011-08-08 15:50:10 +10:00
notify.sh	server: add "setup" event	2010-02-23 10:38:49 +01:00
README	Scripts: add note about not using absolute command paths to README.	2011-08-09 16:36:37 +10:00
statd-callout	Eventscripts: remove unnecessary absolute paths from external commands.	2011-08-03 17:19:15 +10:00

README

This directory contains run-time support scripts for CTDB.

Selected highlights:

  ctdb.init

    An initscript for starting ctdbd at boot time.

  events.d/

    Eventscripts.  See events.d/README for more details.

  functions

    Support functions, sourced by eventscripts and other scripts.

  interface_modify.sh

    Script to support add/remove IPs and other funky stuff.  Not sure
    why this is separate... but it certainly allows easy wrapping by
    flock.

  statd-callout

    rpc.statd high-availability callout to support lock migration on
    failover.

Notes:

* All of these scripts are written in POSIX Bourne shell.  Please
  avoid bash-isms, including the use of "local" variables (which are
  not available in POSIX shell).

* Do not use absolute paths for commands.  Unit tests attempt to
  replace many commands with stubs and can not do this if commands are
  specified with absolute paths.  The functions file controls $PATH so
  absolute paths should not be required.