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If a node becomes INACTIVE, then all the records in volatile databases
are invalidated. This avoids the need to include records from such
nodes during subsequent recovery after the node comes out INACTIVE state.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13641
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
The comment immediately above this code says "don't allow local
clients to attach" and then looks up the client ID regardless of
whether the request is local or remote.
This means that an intentional remote attach from a client will not
work correctly. No real client should ever do that since clients
attach so they an access databases locally. Perhaps some sanity
checks should be added.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13500
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This used to be used by client code but not anymore, so move it to
where it is used. Drop the comment because it is wrong. Modernise
logging.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12978
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 Aug 25 13:32:58 CEST 2017 on sn-devel-144
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): Mon Aug 14 13:00:16 CEST 2017 on sn-devel-144
The tdb open flags should be calculated based on the database type and
ctdb tunables.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Currently, every lock helper will log a message if it cannot get a lock.
This can spam the logs and overwhelm syslog if there are hundreds of
lock helpers waiting for contended record.
Instead keep track of the record for which we have already logged once
with specific timeout interval. If we get timeout interval larger than
the previously logged interval, then log again once. This will reduce
the amount of logs for contended records to a single log entry per 10
seconds per record.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Extend CTDB_REQ_KEEPALIVE packet to include version and uptime. If CTDB
versions do not match shutdown ctdb.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Instead of using hopcount as a metric for hot records, use the number
of migrations per second as a metric.
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 Apr 5 08:35:45 CEST 2017 on sn-devel-144
Following controls are now implemented by event daemon
- RUN_EVENTSCRIPTS
- GET_EVENT_SCRIPT_STATUS
- ENABLE_SCRIPT
- DISABLE_SCRIPT
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
These were used in serial recovery and for restoring databases using
older ctdb tool. New code uses database specific transaction controls.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This drastically simplifies the code. "ctdb reloadips" behaves the
same, since it causes a takeover run immediately after IPs are
deleted. "ctdb delip" now needs to be followed with an explicit "ctdb
ipreallocate".
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
