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Rename the `struct ctdb_context` field nodes_file to nodes_source to
better match that the field may indicate something other than a true
file.
Signed-off-by: John Mulligan <jmulligan@redhat.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
ctdb_control_getnodesfile() calls ctdb_read_nodes(), which returns a
struct ctdb_node_map rather than the old version, so update associated
marshalling. While here modernise a debug message and wrap the
function arguments.
For ctdb_load_nodes_file() to use ctdb_read_nodes(), tweak
convert_node_map_to_list() to also use the modern node map structure.
Remove unused copy of ctdb_read_nodes_file().
Signed-off-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Anoop C S <anoopcs@samba.org>
We have the same function in tevent, no need to duplicate code.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
nl->srvid is uint64_t, as is the srvid parameter of ctdb_daemon_send_message()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Wed Mar 13 08:43:16 UTC 2024 on atb-devel-224
This further untangles public IP handling from the main daemon.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Pass on a SIGHUP to the recovery daemon, which will then reopen its
logs.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
DISABLED is UNHEALTHY | PERMANENTLY_DISABLED, which is not what is
intended here. Luckily, it doesn't do any harm because nodes are
marked unhealthy at startup anyway.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14784
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
The socket is set close-on-exec but that doesn't help for processes
that do not exec(). This should be done for all child processes.
This has been seen in testing where "ctdb shutdown" waits for the
socket to close before succeeding. It appears that lingering
vacuuming processes have not closed the socket when becoming clients
so they cause "ctdb shutdown" to hang even though the main daemon
process has exited. The cause of the lingering vacuuming processes
has been previously examined but still isn't understood.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
If run with UID wrapper and UID_WRAPPER_ROOT=1 then securing the
socket will fail.
Test mode means that local daemons are in use, so securing the socket
is not important.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
Variable res is only used once and ret is re-used many times. Drop
res, use ret, which doesn't need to be initialised. Modernise debug
macro.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
There is no sane way of keeping stdin open when using the shell to
background ctdbd in local_daemons.sh. Instead, have ctdbd fork when
not interactive and when test mode is enabled. become_daemon() can't
be used for this: if it forks then it also closes stdin.
For the interactive case, become_daemon() wasn't doing anything
special, so do nothing instead.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
These don't need to depend on do_fork. Child logging should be set up
whenever the daemon is not interactive. The stdin handler should be
setup whenever test mode is enabled.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
No functional changes.
This is staging for a change that makes ctdbd fork when test mode is
enabled but interactive is not set.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This allows a test environment to simply close its end of a pipe to
cleanly shutdown ctdbd. Like in smbd, this is only done if stdin is a
pipe or a socket.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Indexing by PNN is wrong.
This also removes a signed/unsigned comparison because the PNN is not
compared to -1 anymore.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Node ID is a poorly defined concept, indicating the slot in the node
map where the IP address was found. This signed value also ends up
compared to num_nodes, which is unsigned, producing unwanted warnings.
Just return the PNN because this what both callers really want.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
ctdb_control_db_attach() and ctdb_control_db_detach() assume that any
control with client ID 0 comes from another daemon and treat it
specially.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13930
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is to help us notice when ctdbd is using the full capacity of a
CPU, so is saturated.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
There is no need to write SAMBA_VERSION_STRING as CTDB_VERSION_STRING.
Wherever required use SAMBA_VERSION_STRING directly.
Avoids the confusion with two version.h files.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13789
Signed-off-by: Amitay Isaacs <amitay@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Fri Mar 15 06:31:50 UTC 2019 on sn-devel-144
ctdbd logs to stderr in interactive mode, not stdout. This way stdout
is always closed.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Within ctdb_daemon_read_cb the provided data is checked for sanity,
e.g. correct size and content. This is not required because it was
done already by the caller (queue_process).
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Jeremy Allison <jra@samba.org>
In case of an error condition the further processing of the data is cancelled
and the callback returns. In such a scenario the data has to be free'd.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Jeremy Allison <jra@samba.org>
If the specified file or the default does not exist then log a
warning.
This is done in the takeover code to localise the handling of the
public addresses file. Soon the daemon command-line option will go
away and the takeover code will be replaced in the not too distant
future.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Set SOCKET_CLOEXEC on the sockets returned by accept. This ensures that
the socket is unavailable to any child process created by system().
Making it harder for malicious code to set up a command channel,
as seen in the exploit for CVE-2015-0240
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13154
STARTUP control is primarily used to synchronise tcp tickles from running
nodes to a node which has just started up. Earlier STARTUP control was
sent (using BROADCAST_ALL) after setup event. Once the other nodes in
the cluster connected to this node, the queued up messages would be sent
and the tcp tickles would get synchronised.
Recent fix to drop messages to disconnected or not-yet-connected nodes,
the STARTUP control was never sent to the remote nodes and the tcp
tickles did not get synchronised.
To fix this problem send the STARTUP control (using BROADCAST_CONNECTED)
after startup event. By this time all the running nodes in the cluster
are connected.
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 Nov 30 15:29:48 CET 2017 on sn-devel-144
Whenever the current git hash changes, we recompile ctdb.c and
ctdb_daemon.c. As both have quite a few warnings with -Wall, this
makes it quite difficult to see the real warnings that pop up during
development. Centralize the ctdb_version_string to just a single file
without warnings.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This reverts commit 19318d2835.
With this commit, a shutdown that occurs while the startup event is
running can cause an abort because the startup callback will try to
decrease the run state from SHUTDOWN to RUNNING.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Monitoring is skipped when not in run state RUNNING, so remove the
dependency on the monitoring code.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13029
If a call request for a key (migration request) is in flight, then all
the subsequent call requests for the same key are deferred. In that case,
the data corresponding to key read from the local tdb is useless and there
is no need to keep it around. Once the deferred call is reprocessed,
the data corresponding to that key will be fetched again.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Only check processes that are CTDB clients.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13012
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
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
