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This is a replacement for fncall.[ch] without having to go through
a pipe for job completion signalling
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The pthreadpool_tevent wrapper will need this
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
First step to separate the signalling mechanism from the core pthreadpool code.
A later patch will add a pthreadpool that directly indicates job completion via
tevent_threaded_schedule_immediate.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Logically this belongs into the previous patch, but tevent deserves isolated
patches :-)
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Aug 23 10:46:17 CEST 2016 on sn-devel-144
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Aug 20 09:41:33 CEST 2016 on sn-devel-144
Some systems required an explicit <signal.h>, which comes
via "system/wait.h"
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Tue Aug 16 19:09:55 CEST 2016 on sn-devel-144
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Aug 12 04:26:09 CEST 2016 on sn-devel-144
When fetching records from remote ctdb nodes via ctdbd_parse() or in
db_ctdb_traverse(), we already check for tombstone records and skip
them. This was originally also done for the ltdb checks.
See also bug: https://bugzilla.samba.org/show_bug.cgi?id=10008
(commit 1cae59ce11).
Commit 925625b528 reverted part of the
patch of bug 10008 due to a deadlock it introduced.
This patch re-introduces the consistent treatment of empty records in
the ltdb but avoids the deadlock by correctly signalling
NT_STATUS_NOT_FOUND if an empty record is found authoritatively in
the ltdb and not calling ctdb in this case.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12005
Pair-Programmed-With: Michael Adam <obnox@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Tue Aug 9 04:38:44 CEST 2016 on sn-devel-144
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Thu Aug 4 22:08:35 CEST 2016 on sn-devel-144
Trying to trim down messages.c a bit: Sending to all processes that are
registered in serverid.tdb and filtering to me is not really logic of general
messaging but more of the serverid code.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This will be used between cleanupd and smbd for passing information
about exitted smbd childs.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12022
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Jul 16 00:17:03 CEST 2016 on sn-devel-144
The existing one with a separate dbwrap_watchers.tdb turns out to
create a performance penalty in a clustered environment. Non-clustered,
dbwrap_parse_record on non-existent records is very cheap, but in a
cluster environment this is very noticable.
This implementation puts the watcher information into the records itself. For
large records, this might be another performance penalty, because we have to
assemble the final record together with talloc and memcpy, but this might be
fixed later with a tdb_storev call.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
It's highly unlinkely that this will ever kick in, because our current tdb keys
are rather small, but offset calculations without overflow checks are bad.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Typicall, when we watch a record, we wait for a process to give up some
resource. Be it an oplock, a share mode or the g_lock. If everything goes well,
the blocker sends us a message. If the blocker dies hard, we want to also be
informed immediately.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This is a brute force variant, trying twice a second. We'll have better
variants with tmsgd in the future.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
... something I've wanted to do for ages :-)
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Thu Jul 14 20:50:15 CEST 2016 on sn-devel-144
This is the last step to fix a regression introduced by
3fe3226daa and
3fe3226daa8488e0fa787c40359c3401b6f05fc0^
where we pass the ctdb-messaging object conn to db_open() and add a
reference to it to the private db_ctdb_ctx for later use. Unfortunately
reinit_after_fork() destroys conn, leaving us with an invalid reference.
The previous patches added new lower level functions
messaging_ctdbd_reinit() and ctdbd_reinit_connection(), finally use them
them from messaging_reinit(). They preserve the conn object and simply
reinitialize the IPC fd.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Mon Jul 11 23:45:20 CEST 2016 on sn-devel-144
Split out and internal function from messaging_ctdbd_init() that does
the connection setup. Keep the conn object allocation in
messaging_ctdbd_init().
This is in preperation of adding messaging_ctdbd_reinit() which will use
the new internal function as well.
messaging_ctdbd_init_internal() has a new reinit flag,
messaging_ctdbd_init() calls with reinit=false resulting in unmodified
behaviour.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Split ctdbd_init_connection() into an internal function that does the
connection setup and only keep the conn object allocation in
ctdbd_init_connection().
This is in preperation of adding ctdbd_reinit_connection() which will
use the new internal function as well.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Only expose a synchronous tldap_gensec_bind() call, as it can't
really be async anyway.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Tue Jun 28 11:19:33 CEST 2016 on sn-devel-144
This should prevent nested event loops, and won't make the
code performance worse anyway.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
CTDB can send CTDB_REPLY_ERROR in case it encounters an error condition.
This is treated as successful migration as "ret" is not set.
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): Fri Jun 24 22:39:23 CEST 2016 on sn-devel-144
If the node has flag NODE_FLAGS_PERMANENTLY_DISABLED, then it is
still working. Only avoid connections if node has any of the flags
in NODE_FLAGS_INACTIVE.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Thu Jun 23 23:38:44 CEST 2016 on sn-devel-144
The sysquotas module has several supported backends for
getting/setting user/group quota. This patch removes a check
by the common code, to see if the backend has returned EDQUOT.
Before this patch, it was OK for a backend to return with error
and errno set to EDQUOT, and that meant success, but with a warning
that the user/group is over quota. This is the system behavior on
some Unices. This patch removes this from the protocol between the
sysquota module and its backend drivers - it's the responsibility
of the backend to return 0 iff it has fulfilled the request to get or
set quota.
Signed-off-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
When obtaining user/group quota, remove check for EDQUOT
errno return. Apparently on some Unices, EDQUOT means that
the get-quota function has succeeded, but the user/group is
over-quota. Not so in Linux.
Signed-off-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
