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It is more efficient calling ctdb_sys_local_ip_check() inside a loop
compared to calling ctdb_sys_have_ip(). There is a chance that this
is premature optimisation... but it sure is easy. Fall back to
checking with bind().
I think these checks really exist because of the weirdness fixed by
commit 4b4e4d8870. However, we might as
well do what we can.
Signed-off-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: John Mulligan <jmulligan@redhat.com>
Reviewed-by: Anoop C S <anoopcs@samba.org>
Improve readability by not repeating the complex expression now
assigned to addr. ctdb_sys_have_ip() is called in both arms of the
if/else, so call it once when declaring the new variable.
Modernise debug macros while touching lines.
Signed-off-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: John Mulligan <jmulligan@redhat.com>
Reviewed-by: Anoop C S <anoopcs@samba.org>
Saves lines, str_list_add_printf takes care of NULL checks
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Sun Sep 22 10:44:59 UTC 2024 on atb-devel-224
I could not find out how to cast a char ** to const char ** without
warning. This transfers fine to the execv call as well.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Code to setup the transport is about to be cleaned up, including
removing uses of ctdb_set_error(), so avoid logging a NULL pointer or
some other old error.
Signed-off-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
In a future commit we will add support for loading the config file from
the `ctdb` command line tool. Prior to this change the config file load
func always called D_NOTICE that causes the command to emit new text and
thus break all the tests that rely on the specific test output (not to
mention something users could notice). This change plumbs a new
`verbose` argument into some of the config file loading functions.
Generally, all existing functions will have verbose set to true to match
the existing behavior. Future callers of this function can set it to
false in order to avoid emitting the extra text.
Signed-off-by: John Mulligan <jmulligan@redhat.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Rename ctdb_load_nodes_file to ctdb_load_nodes as it can now load nodes
from more than a regular file.
Signed-off-by: John Mulligan <jmulligan@redhat.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
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>
Use the new "nodes list" configuration option. Executing the given path
if the path is prefixed by a `!`. The use case is to decouple the nodes
file from the shared storage, especially in the case where the shared
storage is provided by a vfs module.
For an example, imagine a script that runs `curl` on a URL for a
highly-available web server where the URL provides the content
of the nodes file.
Signed-off-by: John Mulligan <jmulligan@redhat.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
While here, fix a trivial memory leak (ctdbd will exit anyway if this
function fails).
Signed-off-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Anoop C S <anoopcs@samba.org>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Tue Jul 23 12:39:18 UTC 2024 on atb-devel-224
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 might end up using it elsewhere.
Signed-off-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Guenther Deschner <gd@samba.org>
Reviewed-by: Anoop C S <anoopcs@samba.org>
Leave common/conf.[ch] where they are to make this commit
comprehensible.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Guenther Deschner <gd@samba.org>
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
Event scripts run the "start_ipreallocate" hook in order to notice
that some ip addresses in the cluster potentially changed.
CTDB_SRVID_START_IPREALLOCATE gives C code a chance to get notified as well
once the event scripts are finished.
Signed-off-by: Vinit Agnihotri <vagnihotri@ddn.com>
Reviewed-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
Trigger a "startipreallocate" event, but only if in RUNNING runstate.
"startipreallocate" is intended to allow an NFS server to be put into
grace on all nodes before any locks are released as part of releaseip
during failover. If node A is leader and initiates a takeover run
then node B may be connected/active but may not have completed
startup. In this case, the attempt to put NFS-Ganesha into grace on
node B will fail, startipreallocate will fail, and the node will be
banned.
Signed-off-by: Vinit Agnihotri <vagnihotri@ddn.com>
Reviewed-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
ctdb_eventscript_call_names() will be dropped so the mapping between
events and strings is only maintained in one place.
Signed-off-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
Event scripts run the "ipreallocated" hook in order to notice that some ip addresses
in the cluster potentially changed.
CTDB_SRVID_IPREALLOCATED gives C code a chance to get notified as well once the event
scripts are finished.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Modernise debug while touching the code.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15523
Signed-off-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Fri Dec 15 12:09:21 UTC 2023 on atb-devel-224
The one case that is no longer handled specially is when the
destination address is IPv4 loopback. This may previously have been
used to avoid flooding the logs when testing. However, that seems
unnecessary - if testing with 127.0.0.1 then make it a public address.
Modernise debug while touching the code.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15523
Signed-off-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
With multichannel a tcp connection is registered first with
a temporary smbd process, that calls CTDB_CONTROL_TCP_CLIENT
first and then passes the tcp connection to the longterm smbd
that already handles all connections belonging to the specific
client_guid. That smbd process calls CTDB_CONTROL_TCP_CLIENT
again, but the 'tickle' information is already there.
When the temporary smbd process exists/disconnects from ctdb
or calls CTDB_CONTROL_TCP_CLIENT_DISCONNECTED, the 'tickle'
information is removed, while the longterm smbd process
still serves the tcp connection.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15523
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
With multichannel a ctdb connection from smbd may hold multiple
tcp connections, which can be disconnected before the smbd
process terminates the whole ctdb connection, so we a
way to remove undo 'CTDB_CONTROL_TCP_CLIENT' again.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15523
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
We could also remove the src_addr and dest_addr helper variables
completely, but that would be too much for this commit.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
With a file "home_nodes" next to "public_addresses" you can assign
public IPs to specific nodes when using the deterministic allocation
algorithm. Whenever the "home node" is up, the IP address will be
assigned to that node, independent of any other deterministic
calculation. The line
192.168.21.254 2
in the file "home_nodes" assigns the IP address to node 2. Only when
node 2 is not able to host IP addresses, 192.168.21.254 undergoes the
normal deterministic IP allocation algorithm.
Signed-off-by: Volker Lendecke <vl@samba.org>
add home_nodes
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Tue Oct 10 14:17:19 UTC 2023 on atb-devel-224
Commit 19c82c19c0 changed the behaviour
of prctl_set_comment() so it now calls setproctitle(3bsd) by default.
In some Linux distributions (e.g. Rocky Linux 8.8), this results in
messages like this spamming the logs:
ctdbd: setproctitle not initialized, please either call setproctitle_init() or link against libbsd-ctor.
Most Samba daemons seem to call setproctitle_init(), so do it here.
In the longer term CTDB should also switch to using lib/util's
process_set_title(), like the rest of Samba, for more flexible process
names.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15479
Signed-off-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Thu Sep 21 00:46:50 UTC 2023 on atb-devel-224
usecs is going to be passed as a uint32_t. There is no need to
calculate it as a time_t.
Signed-off-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This fixes a little thinko in commit
80de84d36e, where this was overlooked.
Signed-off-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Mon Jul 10 15:15:06 UTC 2023 on atb-devel-224
NOTICE level debug messages in common/run_event.c are not logged by
default.
Currently eventd ends up using ERROR, since this is specified as
LOGGING_LOG_LEVEL_DEFAULT. It doesn't inherit the debug level from
ctdbd and only uses NOTICE level when interactive.
Change the real logging default to NOTICE and use it everywhere.
Followups might be:
* Remove the default_log_level argument to logging_conf_init()
* Kick eventd to update debug level when "ctdb setdebug" is used
Signed-off-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
If this codepath is hit, ctdb aborts with:
ctdb/server/ctdb_recovery_helper.c:2687: Type mismatch: name[struct ban_node_state] expected[struct node_ban_state]")
at ../../lib/talloc/talloc.c:505
Fix this by using the correct type.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Wed May 3 08:04:09 UTC 2023 on atb-devel-224
One of changes is somewhat interesting, it is "tfork waiter proces"
process title in tfork.c. I wonder why no one noticed this before.
There's another similar process title in there, "tfork waiter process(%d)".
Hopefully no one does grep for "proces$" (and there's no reason to).
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Rowland Penny <rpenny@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Jan 26 20:46:11 UTC 2023 on atb-devel-224
"basename" is define in libgen.h included from system/dir.h
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
