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Use a "bitmap" of available IPs for each IP address instead of walking
the list of available IP addresses.
For ctdb/tests/takeover/lcp2.030.sh, this improves the time taken on
my laptop from:
real 0m11.997s
user 0m11.960s
sys 0m0.000s
to
real 0m8.571s
user 0m8.544s
sys 0m0.000s
So, when assigning all 900 IP addresses the improvement is about 25%.
For the no-op case (where all IPs are already assigned to nodes), the
extra setup adds a small fraction of a second for 900 IPs.
Intermediate cases result in intermediate improvements.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This function is currently called twice each time a node is banned.
ctdb_local_node_got_banned() is already called from the banning code,
either due to a received banning control or a node banning itself.
Given that other nodes can't set a node's BANNED flag, a node can only
be banned via the above mechanisms, so drop the redundant call.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Persistent databases are now always recovered by sequence number, so
there is no need for this tunable.
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): Fri Nov 25 08:13:59 CET 2016 on sn-devel-144
This inserts the code from ctdb_cmdline_init() function directly in
main(), so common/cmdline.[ch] can be removed.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12392
Earlier we were relying on SCHED_RESET_ON_FORK to reset the priority of lock
helper processes. Since SCHED_RESET_ON_FORK support has been removed, the
scheduling priority of child processes created using vfork() need to be reset
explicitly in the helper processes.
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): Fri Nov 18 10:18:27 CET 2016 on sn-devel-144
This is a regression introduced in f227c26178c2eaf3fae49f32a90ec905f85005f4.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12407
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): Thu Nov 3 10:10:31 CET 2016 on sn-devel-144
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12392
Feature SCHED_RESET_ON_FORK is completely broken on RHEL6 and RHEL7
distributions. So do not rely on SCHED_RESET_ON_FORK for now.
This reverts commit 1be8564e553ce044426dbe7b3987edf514832940.
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): Tue Oct 25 11:28:28 CEST 2016 on sn-devel-144
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
In time, other things will end up in /use/local/share/ctdb/.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12104
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is a bash script so use bash feature instead of using the leading
underscore convention for locals.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Volker Lendecke <vl@samba.org>
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>
If any processes remain then they may be stuck in D state and this
might tell us why.
Update tests: tweak pidof stub, add support for smbd stack traces and
add some new tests for the shutdown event.
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 Oct 10 12:54:24 CEST 2016 on sn-devel-144
This was a weak attempt at exclusivity. PID file creation now does
that properly.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12287
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
No use touching the socket if PID file creation fails.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12287
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is useful information if ctdb is unable to freeze any of the
databases on banning or stopping.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This should be a sub-shell not an arithmetic expansion.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Test with DisableIPFailover=1 and with no public IP addresses
configured.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12254
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Wed Sep 14 12:30:30 CEST 2016 on sn-devel-144
