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ctdb_mutex_ceph_rados_helper implements the cluster mutex helper API
atop Ceph using the librados rados_lock_exclusive()/rados_unlock()
functionality.
Once configured, split brain avoidance during CTDB recovery will be
handled using locks against an object located in a Ceph RADOS pool.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Disable generation/installation of the etcd cluster mutex helper by
default. Support can be explicitly enabled at configure time with
--enable-etcd-reclock.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This introduces a mutex helper called ctdb_etcd_lock, which allows CTDB to
use an existing etcd cluster to provide the functionality of a recovery lock
using the API outlined in ctdb/doc/cluster_mutex_helper.txt.
Signed-off-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>
Autobuild-User(master): José A. Rivera <jarrpa@samba.org>
Autobuild-Date(master): Mon Dec 5 19:39:10 CET 2016 on sn-devel-144
This extracts the code from following files:
- server/ctdb_logging.c
- server/ctdb_logging_file.c
- server/ctdb_logging_syslog.c
This is in preparation for each daemon (and some processes) doing
their own loging instead of relying on CTDB.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
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>
New tool breaks some of the tool unit tests due to improved error
messages. Those changes are in the following patch.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Removing and adding replacement code makes the commits cleaner.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
CTDB has a lot of scripts and shellcheck can be useful to find dubious
scripting practices.
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): Thu Jul 21 06:06:49 CEST 2016 on sn-devel-144
This helps unit tests locate CTDB's scripts. It is being created to
support some new shellcheck unit tests.
Hopefully, it can also be used to simplify some of the symlink
complexity in some other unit tests suites, such as eventscripts.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11946
Commit 670db6ac1d split tevent-util public
library to create tevent-unix-util public library for standalone ctdb
use. This created a public library dependency between samba and ctdb
for packaging.
Bundle tevent_unix.c in public library tevent-util as before. However,
to avoid the dependencies for packaging, standalone ctdb build will
build tevent-util as a private library with only tevent_unix.c
This simplifies any new subsystems (or libraries) which need tevent-util
and are linked in both samba and ctdb.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
This tested parse_nodestring function from tools/ctdb.c. However,
ctdb.c is soon going to be replaced with the code using new client API.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This implements the type of fcntl locking that the recovery lock uses.
The intent is to use it for multiple locks and allow the choice of
helper to be configured.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
These controls have never been used and also they do not use the server_id
structure defined in samba. In future, similar controls can be added to
register/unregister using proper server_id structure.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This will replace the ctdb CLI tool "lvs" and "lvsmaster" options. It
also makes LVS daemon support unnecessary.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This will allow killing of TCP connections without daemon involvement.
It looks strange that the common code for daemon and helper is in the
server directory. Having it in the server directory means less
temporary changes to the build configuration. This code will move
into the helper itself and will no longer be used by the daemon.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This will be used in a standalone helper.
Don't worry that the API isn't clean and opaque. All of the code will
eventually move into the helper and will no longer be used by the
daemon.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
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 Mar 17 13:56:41 CET 2016 on sn-devel-144
GNU/kFreeBSD's platform name is 'gnukfreebsd', not just 'kfreebsd'.
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Autobuild-User(master): Garming Sam <garming@samba.org>
Autobuild-Date(master): Tue Mar 1 05:42:23 CET 2016 on sn-devel-144
These have been scattered around the code so that
tevent_loop_allow_nesting() can be called. However, only the main
daemon and some tests currently use nested event loops.
TEVENT_DEPRECATED is already defined in the places where it is needed.
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 Feb 26 07:11:29 CET 2016 on sn-devel-144
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11696
We neither have public headers nor a public library.
Guenther
Signed-off-by: Guenther Deschner <gd@samba.org>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Fri Jan 29 04:33:36 CET 2016 on sn-devel-144
This is intended to replace the use of "ctdb natgwlist" in 11.natgw
and provide different views of the NAT gateway status.
It replaces the use of CTDB_NATGW_SLAVE_ONLY=yes with a "slave-only"
keyword in the NAT gateway nodes file. This means the nodes file must
be consistent on all nodes in a NAT gateway group.
Note that this script is not yet integrated, so there are no behaviour
or documentation changes.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Include system_util.c in ctdb-system subsystem.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Mon Nov 16 03:51:36 CET 2015 on sn-devel-104
These functions are only used in the ctdb daemon code.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
Commit 3ddd35142a tries to
unconditionally install pre-built manpages if xsltproc is unavailable.
However, these only exist in a tarball, not in a git repo. That can
make the installation fail.
If xsltproc does not exist then check for each pre-built manpage at
configure time. This should cover all the possible cases.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Wed Nov 11 06:23:48 CET 2015 on sn-devel-104
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 Nov 4 03:52:27 CET 2015 on sn-devel-104
Currently only Samba is built with CTDB and since CTDB headers are not
public any more, no other application can build with CTDB. So define
CTDB_SOCKET only during build.
In future CTDB will have public API and proper way of figuring out
CTDB_SOCKET.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
The databases are repacked automatically during vacuuming when the
freelist size grows beyond configured threshold (RepackLimit).
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Parallel database recovery fixes the samba/ctdb deadlock during recovery.
Many times samba tries to grab multiple record locks in sequence.
Consider a case when samba is already holding a record lock on a database
and tries to get a record lock on second database. If the second record
is not available on the local node, samba asks ctdb to migrate the record.
If recovery occurs at this time (e.g. node becoming inactive), ctdb
cannot freeze all the databases since samba is already holding a lock
and waiting for the second lock. CTDB can process the second record
request only after the recovery is complete, thus causing a deadlock.
In parallel database recovery, each database is frozen and recovered
independent from each other. So as soon as the second database is
recovered, CTDB will resend all the pending migration requests and Samba
can get the second lock. Once samba releases both the locks, ctdb can
freeze the first database and recover it completing recovery process.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Attempt to make common code independent and free from ctdb_context.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
The functions defined in common/system_*.c depend on the functions
defined in common/system_common.c. So keep them together.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
These headers are used by the server code and should not be marked public.
Samba builds against the in-tree version of the headers and should not
be built with externally installed CTDB.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
These changes enable the default installation prefix settings to
take effect in both Waf 1.5 and 1.8 with no additional code changes.
Signed-off-by: Thomas Nagy <tnagy@waf.io>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
At the moment they are not installed at all if xsltproc is not
available.
They can still be filtered to have the paths match what was
configured.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Tue Sep 15 11:57:44 CEST 2015 on sn-devel-104
In this case: ctdbd_wrapper, onnode, ctdb_diagnostics, ctdb.sudoers.
Set sensible defaults from configure options.
Update documentation to match, trying to fix up anything that has been
missed before.
The onnode unit tests need a symlink to the functions file.
The simple integration tests need to set CTDB_BASE and also
need symlinks to functions/nodes.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
fixup
Signed-off-by: Martin Schwenke <martin@meltin.net>
Have wscript do path substitution.
No need to export this and CTDB_ETCDIR here, but test scripts will
still need to do so.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Note that the 60.ganesha RPC checks need to be identical to those in
the nfs-checks.d/ directory. This is because the NFS unit test
infrastructure checks output against what should be produced by the
checks in nfs-checks.d/. This is a minor issue, since one of the aims
of this work is to remove the need for a separate 60.ganesha.
In most cases configuration variable CTDB_NFS_DUMP_STUCK_THREADS is
now ignored. This is now handled by passing the desired number of
threads to the command specified in the service_debug_cmd variable in
a .check file.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
To build CTDB rpms with PCP PMDA, use
make rpm RPM_OPTIONS="--with pmda"
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Pair-Programmed-With: Martin Schwenke <martin@meltin.net>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This avoids rebuilding ctdb after each commit, instead we're using
SAMBA_VERSION_STRING, which may contain "4.3.0pre1-DEVELOPERBUILD",
instead of "4.3.0pre1.GIT.4ccdd39" for the non-install build.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Mon Jun 8 15:51:46 CEST 2015 on sn-devel-104
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Only lib/util uses the systemd library, so it makes sense to have the
checks there. This also removes the need for the ctdb build script to
specify an empty tag for the systemd library.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Specifying a relative path to LD_PRELOAD can fail if any of the test
scripts uses cd to change directory and execute commands.
Adding statd-callout tests breaks autotest since statd-callout does "cd".
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): Wed Mar 4 13:11:53 CET 2015 on sn-devel-104
With improvements to unit test infrastructure to support. This
includes linking the real statd-callout into etc-ctdb/ in place of the
placeholder script.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Check for XSLTPROC_MANPAGES before trying to build the docs.
Signed-off-by: Björn Baumbach <bb@sernet.de>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
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>
CTDB's current wscript assumes that it is only used as part of a
standalone build. However, it will soon be part of a unified build so
make some steps conditional.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This avoids a clash with Samba's BINDIR and also makes it easier to
move the helpers to somewhere else (e.g. libexec) in the future.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
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>
AIX and FreeBSD do not support raw sockets. So use libpcap interface
to watch for specific TCP messages.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Fail configure if thread_setsched() is unavailable on AIX or if
sched_setscheduler() is unavailable on other platforms.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
In is unnecessary and can accidentally cause lib/util/time.h to be
found instead of /usr/include/time.h. The only things depending on it
were bare includes of db_wrap.h and a bare include of dlinklist.h,
which are both gone now.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This makes it consistent with Samba, to ease transition.
Update unit test code to link to with tdb_wrap instead of including
db_wrap.c.
There are some potential whitespace fixes in this commit that have
been ignored. CTDB's lib/tdb_wrap will be deleted after the
transition to Samba's lib/tdb_wrap, so there's no point polishing it
too much.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This makes it look similar to samba-util, easing the transition.
Fold ctdb-util-misc into ctdb-util, since Samba doesn't separate them.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Subsequent commits will introduce recursive compilation of utilities.
Unfortunately the include file structure requires some global includes
to be found, so make this work.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
No need for "..", since the correct thing is generated. Add "include"
and "include/internal" where missing.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Just install into lib/ and let packagers decide on this policy, since
it can vary between distributions. Update our packaging files
accordingly.
A secondary matter is that things are incorrectly installed into
lib64/ when building with 32-bit userspace on a 64-bit kernel. If
this is done then it should depend on the architecture of the
compiler.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
The client code uses both of these, so might as well depend on it.
That way code that depends on ctdb-client transitively get the
dependencies.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
default/ctdb/utils/smnotify/gen_xdr.c: In function ‘xdr_status’:
default/ctdb/utils/smnotify/gen_xdr.c:11:20: warning: unused variable ‘buf’ [-Wunused-variable]
register int32_t *buf;
^
When generating the code, change it to assign the variable to itself.
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): Thu Aug 21 07:11:02 CEST 2014 on sn-devel-104
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 11 10:58:43 CEST 2014 on sn-devel-104
CTDB does not use auto-generated files, there is no need to configure
to generate ctags.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
RUN_COMMAND does not raise exceptions if the command fails, but returns
non-zero status. Ensure that make terminates with non-zero status if
RUN_COMMAND fails.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
tests/scripts/test_wrap script is updated based on the configured paths.
This should be installed instead of the stock version in the source.
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 Jun 24 09:37:39 CEST 2014 on sn-devel-104
This avoids the need to build a tarball to get version information.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Note that in contrast to the original autoconf build,
the ctdb.spec file which is created from packaging/RPM/ctdb.spec,
is put into the top level directory, where it will be picked
up by rpmbuild -ta <tarball>".
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Pair-Programmed-With: Martin Schwenke <martin@meltin.net>
Reviewed-by: Michael Adam <obnox@samba.org>
