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Martin Schwenke 4b652c1527 ctdb-scripts: Don't bother checking PID file when starting ctdbd 
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>
2017-11-07 03:53:27 +01:00
..
events.d ctdb-common: Ignore event scripts with multiple '.'s 2017-10-18 06:20:18 +02:00
nfs-checks.d ctdb-scripts: Move 60.nfs Ganesha callout to doc/examples/ 2015-07-21 07:54:09 +02:00
ctdb-crash-cleanup.sh ctdb-scripts: Fix calculation of CTDB_BASE 2016-11-03 10:10:31 +01:00
ctdb.init ctdb-scripts: Avoid shellcheck warning SC2039 (echo -n) 2016-07-21 02:24:26 +02:00
ctdb.service ctdb-packaging: Fix systemd network dependency 2016-09-14 08:39:28 +02:00
ctdb.sudoers ctdb-scripts: Update important installed files to use build-time defaults 2015-09-15 08:56:21 +02:00
ctdbd_wrapper ctdb-scripts: Don't bother checking PID file when starting ctdbd 2017-11-07 03:53:27 +01:00
ctdbd.conf ctdb: enable mutexes for volatile TDBs by default 2017-07-12 09:01:17 +02:00
debug_locks.sh ctdb-scripts: Fix calculation of CTDB_BASE 2016-11-03 10:10:31 +01:00
debug-hung-script.sh ctdb-scripts: Ignore shellcheck SC2181 warning (use of $?) 2017-08-14 05:15:25 +02:00
functions ctdb-scripts: Switch ctdb_check_unix_socket() to use ss 2017-09-12 12:23:19 +02:00
gcore_trace.sh common: Debug ctdb_addr_to_str() using new function ctdb_external_trace() 2012-10-18 20:05:42 +11:00
nfs-linux-kernel-callout ctdb-scripts: Avoid shellcheck warning SC2039 (test -nt operator) 2016-07-21 02:24:26 +02:00
notify.d.README scripts: Rework notify.sh to use notify.d/ directory 2013-05-23 16:18:23 +10:00
notify.sh ctdb-scripts: Quote some variable expansions 2016-07-06 08:15:49 +02:00
README Eventscript support - Remove unused interface_modify.sh 2012-03-22 15:30:27 +11:00
statd-callout ctdb-scripts: Initialise CTDB_NFS_CALLOUT in statd-callout 2017-02-16 09:21:03 +01:00

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.

  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.