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Commit Graph

2638 Commits

Author SHA1 Message Date
Martin Schwenke
181cc097ef ctdb-daemon: Use ctdb_read_nodes() in ctdbd
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>
2024-07-23 11:37:34 +00:00
Martin Schwenke
11c4b25331 ctdb-conf: Rename config loading to not be daemon-specific
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>
2024-06-28 18:43:52 +05:30
Martin Schwenke
52e5e92693 ctdb-conf: Move all conf files to new conf/ subdirectory
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>
2024-06-28 18:43:52 +05:30
Volker Lendecke
7e621b1b53 ctdb: Modernize a few DEBUGs
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Martin Schwenke <mschwenke@ddn.com>

Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Wed Apr 17 00:54:55 UTC 2024 on atb-devel-224
2024-04-17 00:54:55 +00:00
Volker Lendecke
0baae61e42 lib: Give lib/util/util_file.c its own header file
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Martin Schwenke <mschwenke@ddn.com>
2024-04-16 23:51:45 +00:00
Volker Lendecke
a3e186b617 lib: Remove timeval_until()
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>
2024-03-22 05:03:35 +00:00
Volker Lendecke
78208d4fe4 ctdb: Remove an unnecessary cast
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
2024-03-13 08:43:16 +00:00
Vinit Agnihotri
7dacbcd0ec ctdb: send a CTDB_SRVID_START_IPREALLOCATE message after CTDB_EVENT_START_IPREALLOCATE
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>
2024-03-06 06:05:38 +00:00
Vinit Agnihotri
2483a2ae20 ctdb-takeover: Use CTDB_CONTROL_START_IPREALLOCATE
Signed-off-by: Vinit Agnihotri <vagnihotri@ddn.com>
Reviewed-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
2024-03-06 06:05:38 +00:00
Vinit Agnihotri
b7cc56d22d ctdb-server: Implement CTDB_CONTROL_START_IPREALLOCATE
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>
2024-03-06 06:05:38 +00:00
Vinit Agnihotri
d97e642ba8 ctdb-daemon: Implement startipreallocate event
Signed-off-by: Vinit Agnihotri <vagnihotri@ddn.com>
Reviewed-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
2024-03-06 06:05:38 +00:00
Martin Schwenke
9f68656b47 ctdb-daemon: Use ctdb_event_to_string()
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>
2024-03-06 06:05:38 +00:00
Stefan Metzmacher
b1d0d5d514 ctdb: send a CTDB_SRVID_IPREALLOCATED message after CTDB_EVENT_IPREALLOCATED
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>
2024-01-04 11:39:36 +00:00
Martin Schwenke
4b7329f158 ctdb-server: Drop unnecessary copy of destination 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>

Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Fri Dec 15 12:09:21 UTC 2023 on atb-devel-224
2023-12-15 12:09:21 +00:00
Martin Schwenke
8fc3872557 ctdb-daemon: Use ctdb_connection_to_buf() to simplify
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>
2023-12-15 11:06:34 +00:00
Stefan Metzmacher
037e8e449d ctdb: add/implement CTDB_CONTROL_TCP_CLIENT_PASSED
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>
2023-12-15 11:06:34 +00:00
Stefan Metzmacher
c6602b686b ctdb: add/implement CTDB_CONTROL_TCP_CLIENT_DISCONNECTED
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>
2023-12-15 11:06:34 +00:00
Stefan Metzmacher
5f52d140f7 ctdb: make use of ctdb_canonicalize_ip_inplace() in ctdb_control_tcp_client()
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>
2023-12-15 11:06:34 +00:00
Stefan Metzmacher
92badd3bdd ctdb: remove unused ctdb->client_ip_list and print debug on ctdb_tcp_list instead
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>
2023-12-15 11:06:34 +00:00
Joseph Sutton
cec6c7e233 ctdb: Fix code spelling
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-12-08 02:28:33 +00:00
Joseph Sutton
265e3699ac ctdb: Remove trailing whitespace
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-12-08 02:28:33 +00:00
Volker Lendecke
a6b66661c7 ctdb: Add "home_nodes" file to deterministic IP allocation
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
2023-10-10 14:17:19 +00:00
Volker Lendecke
23ccb1c0ca ctdb: Align variable signedness
ipalloc_state->num_nodes is uint32_t
Reviewed-by: Ralph Boehme <slow@samba.org>
2023-10-10 13:14:31 +00:00
Martin Schwenke
8b9f464420 ctdb-daemon: Call setproctitle_init()
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
2023-09-21 00:46:50 +00:00
Joseph Sutton
c62491473a ctdb: Fix code spelling
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-09-11 02:42:41 +00:00
Joseph Sutton
9769b594f4 ctdb: Add missing newline to logging message
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-08 04:39:37 +00:00
Joseph Sutton
a8085b3dd5 ctdb: Add missing newlines to logging messages
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-08 04:39:36 +00:00
Martin Schwenke
2e2d81b92a ctdb-recoverd: CID 1509028 - Use of 32-bit time_t (Y2K38_SAFETY)
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>
2023-07-19 09:01:33 +00:00
Martin Schwenke
61dfc8bc06 ctdb-server: Avoid logging a count of 0 resent calls
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
2023-07-10 15:15:06 +00:00
Martin Schwenke
51d0445a7d ctdb-logging: Really make NOTICE the default debug level
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>
2023-07-10 14:21:30 +00:00
Christof Schmitt
4dccf5afa4 ctdb-recovery: Use correct struct ban_node_state type for state
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
2023-05-03 08:04:09 +00:00
Andreas Schneider
7749df4992 ctdb:server: Fix code spelling
Best reviewed with: `git show --word-diff`

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Martin Schwenke <mschwenke@ddn.com>
2023-03-24 07:01:31 +00:00
Andreas Schneider
19f418b68f ctdb:server: Remove trailing whitespaces in ctdb_server.c
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Martin Schwenke <mschwenke@ddn.com>
2023-03-24 07:01:31 +00:00
Andreas Schneider
59af504999 ctdb:server: Remove trailing whitespaces in ctdb_recover.c
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Martin Schwenke <mschwenke@ddn.com>
2023-03-24 07:01:31 +00:00
Michael Tokarev
96154a26fe spelling fixes for 4.18 (errror implemenation proces Controler)
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
2023-01-26 20:46:11 +00:00
Volker Lendecke
35ee3e0231 ctdb: Fix the build on FreeBSD
"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>
2023-01-18 11:49:38 +00:00
Martin Schwenke
061315cc79 ctdb-mutex: Test the lock by locking a 2nd byte range
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-07-28 10:09:34 +00:00
Martin Schwenke
97a1714ee9 ctdb-mutex: open() and fstat() when testing lock file
This makes a file descriptor available for other I/O.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-07-28 10:09:34 +00:00
Martin Schwenke
c07e81abf0 ctdb-mutex: Factor out function fcntl_lock_fd()
Allows blocking mode and start offset to be specified.  Always locks a
1-byte range.

Make the lock structure static to avoid initialising the whole
structure each time.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-07-28 10:09:34 +00:00
Martin Schwenke
9daf22a5c9 ctdb-mutex: Handle pings from lock checking child to parent
The ping timeout is specified by passing an extra argument to the
mutex helper, representing the ping timeout in seconds.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-07-28 10:09:34 +00:00
Martin Schwenke
b5db286791 ctdb-mutex: Do inode checks in a child process
In future this will allow extra I/O tests and a timeout in the parent
to (hopefully) release the lock if the child gets wedged.  For
simplicity, use tmon only to detect when either parent or child goes
away.  Plumbing a timeout for pings from child to parent will be done
later.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-07-28 10:09:34 +00:00
Martin Schwenke
2ecdbcb22c ctdb-mutex: Rename wait_for_lost to lock_io_check
This will be generalised to do more I/O-based checks.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-07-28 10:09:34 +00:00
Martin Schwenke
7ab2e8f127 ctdb-mutex: Rename recheck_time to recheck_interval
There will be more timeouts so clarify the intent of this one.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-07-28 10:09:34 +00:00
Martin Schwenke
c396b61504 ctdb-mutex: Consistently use progname in error messages
To avoid error messages having ridiculously long paths, set progname
to basename(argv[0]).

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-07-28 10:09:34 +00:00
Martin Schwenke
3efa56aa61 ctdb-daemon: Fix printing of tickle ACKs
Commit f5a2037734 arguably got this
back-to-front:

  2022-07-27T09:50:01.985857+10:00 testn1 ctdbd[17820]: ../../ctdb/server/ctdb_takeover.c:514 sending TAKE_IP for '10.0.1.173'
  2022-07-27T09:50:01.990601+10:00 testn1 ctdbd[17820]: Send TCP tickle ACK: 10.0.1.77:33004 -> 10.0.1.173:2049
  2022-07-27T09:50:01.991323+10:00 testn1 ctdb-takeover[19758]: TAKEOVER_IP 10.0.1.173 succeeded on node 0

Unfortunately there is an inconsistency somewhere in the connection
tracking code used for tickle ACKs, making this less than obvious.

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 28 09:02:08 UTC 2022 on sn-devel-184
2022-07-28 09:02:08 +00:00
Martin Schwenke
c77a4fde7a ctdb-daemon: Modernise debug in ctdb_add_public_address()
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-07-22 16:09:31 +00:00
Martin Schwenke
d62fcba7dc ctdb-daemon: Avoid spurious error sending ARPs for released IP
A public IP address can be released in between (and probably before)
attempts to send ARPs.  One situation when this can occur is when a
cluster is shutting down: node A shuts down first, public IPs from
node A are taken over by node B, node B is shutdown.

Notice this when it occurs and cancel further attempts to send ARPs.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-07-22 16:09:31 +00:00
Martin Schwenke
f5a2037734 ctdb-daemon: Modernise debug in ctdb_control_send_arp()
For the tickle ACK logging, render the connection in a buffer.  This
produces more complete information.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-07-22 16:09:31 +00:00
Martin Schwenke
9898e7c555 ctdb-recoverd: Clean up banning culprit code
Make this fully self-contained in the recovery daemon and avoid
indexing by PNN.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-07-22 16:09:31 +00:00
Martin Schwenke
19fbc2da38 ctdb-recoverd: Add pnn field to banning state structure
This structure is now standalone, so indexing by PNN can be avoided
via a subsequent commit.  Index by culprit here to make this commit
simple.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-07-22 16:09:31 +00:00