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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>
Samba's debug subsystem has changed a lot, so CTDB's logging needs
to be rewritten to be compatible.
The new debug.h/debug.c can't just be pulled in because it has some
extra dependencies into Samba's lib/util. For now, to support the
smallest possible patch, implement a minimal subset of Samba's
debug.[ch] that just supports the DEBUG_CALLBACK logtype.
Define a callback for each logging method.
Check later to see if debug_extra (or similar) can somehow be
implemented using debug classes.
The timestamp on CTDB CLI tool and test program DEBUG() output goes
away, so update the unit test code to cope.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Volker Lendecke <vl@samba.org>
As far as we know, nobody uses this and it just complicates the
logging subsystem.
Remove all ringbuffer code and documentation. Update the local
daemons startup code correspondingly.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Volker Lendecke <vl@samba.org>
Warnings are currently produced when compiling Samba and
ctdb_private.h is included. A forward enum declaration avoids the
warning.
This is a temporary measure. The log ringbuffer should be removed
soon.
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): Tue Sep 23 10:31:50 CEST 2014 on sn-devel-104
To accommodate removing file_lines_load() from here, drop the #ifdef
around the declaration in util.h.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
debug_extra is CTDB-specific. Moving it will help with the
transitions to Samba's updated debug.[ch].
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This function is only used in this file. Samba's lib/util doesn't
have timeval_delta(), so staging a clean transition.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is part of a migration to Samba's lib/util. CTDB always passes 0
(i.e. no max_size) so use a simple assert() to enforce this, rather
than changing a lot of code that will be discarded anyway.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is the only place it is used.
After migrating to Samba's lib/util, the lock helper can be changed to
use strhex_to_data_blob().
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
To avoid warnings when using --enable-developer, which uses
-Wmissing-prototypes.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
When CTDB receives DMASTER_REQUEST or DMASTER_REPLY packet, the specified
record needs to be updated as soon as possible to avoid inconsistent
dmaster information between nodes. During this time, queue up all calls
for that record and process them only after dmaster request/reply has
been processed.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
There is no need for a special function to free lock request and
corresponding lock context. Freeing lock request will free lock
context also.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This makes sure that when the client context is destroyed, the lock
request goes away. If the lock requests is already scheduled, then the
lock child process will be terminated.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
We really should extricate these from source3 and into some common
code. However, just copy them for now to help get rid of a lot of
warnings.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This avoids traversing a single pending queue which is quite expensive
when there are lots of pending lock requests. This seems to happen
quite a lot on a loaded cluster for notify_index.tdb.
Adding per database queues avoids the need to traverse pending queue
for that database if there are already the maximum number of active
lock requests.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Mon Aug 4 20:23:45 CEST 2014 on sn-devel-104
The number of pending locks displayed in ctdb statistics are stored in
ctdb_statistics structure and not ctdb_context.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
This allows to change the maximum number of lock processes that can
be active.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
To enable TDB mutex support, set tunable TDBMutexEnabled=1.
When databases are attached for the first time, attach flags must include
TDB_MUTEX_LOCKING and TDBMutexEnabled must set to enable mutex support.
However, when CTDB attaches databases internally for recovery, it will
enable mutex support if TDBMutexEnabled is set.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Wed Jul 9 06:45:17 CEST 2014 on sn-devel-104
This prevents ctdb tool from thawing databases prematurely in
thaw/wipedb/restoredb commands if recovery is active.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This duplicates ctdb->ctdbd_pid.
Thanks to Sumit Bose <sbose@redhat.com> for the suggestion.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
When calling sched_setscheduler() with SCHED_OTHER, the only valid
priority is 0. Nice value is "restored" anyway.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This will allow to build clustered samba with built-in ctdb tree rather
than needing to install CTDB first.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Michael Adam <obnox@samba.org>
