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The database generation for each database is updated only during recovery.
After recovery is complete the database generation would be the same as
the global generation.
The database generation is required for parallel database recovery.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Since the banning code does not call this function anymore, it can be
made static.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
The same structure is required in new controls for database transactions.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
The pending calls are migration requests received from clients (over unix
domain socket) which are under processing. After a recovery is finished,
any requests which are under processing will be dropped since they do
not belong to the current generation. All the pending call requests
are resent with new generation to restart record migrations.
This is in preparation for parallel database recovery.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Just use ctdb_tcp_connection. It is the same. There are no external
users.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Volker Lendecke <vl@samba.org>
When the ctdb statistics is reset, reset per database statistics to keep
it consistent with ctdb statistics.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This has not been used for a long time.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Fri Jul 10 23:41:18 CEST 2015 on sn-devel-104
This needs to be cleared to avoid stale data when a new recovery
master is elected.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Guenther
Signed-off-by: Günther Deschner <gd@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat May 30 05:03:59 CEST 2015 on sn-devel-104
ctdb_get_capabilities() gets capabilities from all connected nodes
into an array. ctdb_get_node_capabilities() gets capabilities for a
particular node from array. ctdb_node_has_capabilities() returns true
if given node has all of the given capabilities.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is like CTDB_CONTROL_GET_NODEMAP but it loads from the nodes file
instead of the daemon.
Also new client function ctdb_ctrl_getnodesfile()
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Every time a nodemap is contructed the node IP addresses all need to
be parsed. This isn't very productive use of CPU.
Instead, parse each string once when the nodes file is loaded. This
results in much simpler code.
This code also removes the use of ctdb_address. Duplicating the port
is pointless without an abstraction layer around ctdb_address. If
CTDB gets an incompatible transport in the future then add an
abstraction layer.
Note that the infiniband code is not updated. Compilation of the
infiniband code is already broken. Fixing it will be a separate,
properly tested effort.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Pair-programmed-with: Amitay Isaacs <amitay@gmail.com>
Having it require a CTDB context stops ctdb_parse_address() from being
used in more generic code. Just use the existing talloc context for
memory allocations.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Have it just silently take or fail to take the lock, except on an
unexpected failure (where it should log an error).
This means that when it is called we need to keep the old behaviour
and explicitly release the lock. In do_recovery() the lock is
released and a message is printed before attempting to take the lock.
In the daemon sanity check the lock must be released in the error path
if it is actually taken.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Unlock the recovery lock file. This way knowledge of the file
descriptor isn't sprinkled throughout the code.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
For now replace.h needs to be before tdb.h, since tdb.h needs
stdbool.h. This is fixed upstream but not yet in various packaged
versions.
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 31 03:46:40 CET 2014 on sn-devel-104
Remove unused #defines. CTDB doesn't use these. _PUBLIC_ is defined
in replace.h anyway.
Remove unnecessary #includes.
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>
It is much simpler for most cases to have a syslog backend that
doesn't need a separate CTDB-specific logging daemon. This loses the
lossy, non-blocking mode provided by logd. However, a corresponding
feature with a completely different implemention (not requiring an
extra daemon) will be re-added into the syslog backend. In an ideal
world the new implementation would be added first but unfortunately
that is hard to do because the logd code is hooked in at more than one
place.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This makes the code cleaner and allows the syslog backend to be easily
modified without affecting other code. Also do some extra clean-up,
including whitespace fixups.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Put declarations into ctdb_logging.h, factor out some common code,
clean up #includes.
Remove the check so see if the 1st character of the debug level is
'-'. This is wrong, since it is trying to check for a negative
numeric debug level (which is no longer supported) and would need to
be handled in the else anyway.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is set but otherwise not used. This allows the 1st argument to
ctdb_set_logfile() to be generalised to a TALLOC_CTX.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is only used by logging code and there is already a file-level
variable for this. struct ctdb_context already contains too many
things.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Internally map them to DEBUG_ERR to limit code churn.
This reduces the unwieldy number of debug levels used by CTDB. ALERT
and CRIT aren't of much use as separate errors, since everything from
ERR up should always be logged. In future just ERR can be used.
This also improves compatibility with Samba's debug.c system priority
mapping.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
It isn't used and shouldn't be. CTDB can't make the system unusable.
Update associated test to ensure that EMERG isn't attempted. Actually
test all remaining debug levels and modernise the test a bit.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Remove local lib/util and lib/tdb-wrap. Update wscript, packaging and
includes.h.
The only potentially surprising thing here is a fake samba-util
subsystem that just depends on samba-util-core. As explained in a
comment:
When a combined build is implemented, CTDB will wanted to build
against samba-util rather than samba-util-core. Similarly, other
Samba subsystems expect samba-util. So, for a standalone build,
just define a fake samba-util subsystem that pulls in
samba-util-core.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Volker Lendecke <vl@samba.org>
