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Fix typo in error checking. While here adjust the bottom of the
range, making errno 0 invalid.
Add corresponding test cases using an alternative syntax for errno packets
(#nnn[;] - trailing ';' is optional).
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): Mon Aug 1 09:19:55 UTC 2022 on sn-devel-184
Block the locker helper child by taking a lock on the 2nd byte of the
lock file. This will cause a ping timeout if the process is blocked
for long enough.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Thu Jul 28 11:10:54 UTC 2022 on sn-devel-184
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>
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>
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>
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>
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>
tmon_ping_test covers complex 2-way interaction between processes
using tmon_ping_send(), including via a socketpair(). tmon_test
covers the more general functionality of tmon_send() but uses a
simpler 1-way harness with wide coverage.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
A convention when testing members of ctdb-util is to include the .c
file so that static functions can potentially be tested. This means
that such tests can't be linked against ctdb-util or duplicate symbols
will be encountered.
ctdb-tests-common depends on ctdb-client, which depends in turn on
ctdb-util, so this can't be used to pull in backtrace support.
Instead, make ctdb-tests-backtrace its own subsystem.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Also, rename ctdb_unit_tests to ctdb_util_tests. The sorting makes
it clear that only items from ctdb-util are tested here.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
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
The include isn't strictly necessary, since it is included via
common/reqid.c anyway. However, it is a useful hint.
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 Jul 22 17:01:00 UTC 2022 on sn-devel-184
root can read files for which the mode prohibits reading, so this test
case fails when run as root. Work around this when running as root.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Some versions of nfs-utils (e.g. recent CentOS 7) use /etc/nfs.conf
but do not include the nfsconf utility to extract values from the
file. However, git has an excellent conf file parser, so use it as a
last resort.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
For example:
In /home/martins/samba/samba/ctdb/tools/onnode line 304:
[ "$nodes" != "${nodes%[ ${nl}]*}" ] && verbose=true
^---^ SC2295 (info): Expansions inside ${..} need to be quoted separately, otherwise they match as patterns.
Did you mean:
[ "$nodes" != "${nodes%[ "${nl}"]*}" ] && verbose=true
For more information:
https://www.shellcheck.net/wiki/SC2295 -- Expansions inside ${..} need to b...
Who knew? Thanks ShellCheck!
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This works as an unprivileged user, so avoids unnecessary errors when
running in test mode (and not as root):
2022-02-18T12:21:12.436491+11:00 node.0 ctdbd[6958]: ctdb_sys_check_iface_exists: Failed to open raw socket
2022-02-18T12:21:12.436534+11:00 node.0 ctdbd[6958]: ctdb_sys_check_iface_exists: Failed to open raw socket
2022-02-18T12:21:12.436557+11:00 node.0 ctdbd[6958]: ctdb_sys_check_iface_exists: Failed to open raw socket
2022-02-18T12:21:12.436577+11:00 node.0 ctdbd[6958]: ctdb_sys_check_iface_exists: Failed to open raw socket
The corresponding porting test would now become pointless because it
would just confirm that "fake" does not exist. Attempt to make it
useful by using a less likely name than "fake" and attempting to
detect the loopback interface.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
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>
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>
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>
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>
For memory usage, no need to dump all of this data on every failed
monitor event. The first call will be enough to diagnose the problem.
The node will then go unhealthy, drop clients and memory usage should
then drop.
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 Jul 22 07:32:54 UTC 2022 on sn-devel-184
If filesystem usage exceeds the unhealthy threshold then checking
memory usage checking is not done. Always do them both.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Use printf to allow easier line breaks and use some early returns.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
About to modify this file, so reformat first as per recent Samba
convention.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
SC2164 (warning): Use 'cd ... || exit' or 'cd ... || return' in case cd fails.
A problem can only occur if /etc/ctdb/ or an important subdirectory is
removed, which means the script itself would not be found. Use && to
silence ShellCheck.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
When a node is starting, CTDB reports remote nodes as unhealthy by
default. This can be misleading.
To hide this, report an "UNKNOWN" pseudo state when a remote node is
not disconnected and the runstate is less than or equal to
"FIRST_RECOVERY".
Signed-off-by: Vinit Agnihotri <vagnihotri@ddn.com>
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
These would be unintended errors. The block should be omitted to keep
the default value.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
eval is not required and causes the follow ShellCheck warning:
SC2294 (warning): eval negates the benefit of arrays. Drop eval to
preserve whitespace/symbols (or eval as string).
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 Jun 24 10:40:50 UTC 2022 on sn-devel-184
The current code requires the use of eval in the NFS callout handling
to facilitate testing. Improve the code to remove this need.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
The current code works in all current cases but is lazy and wrong.
Fix it to avoid breaking on code changes involving different thread
setups.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Tests can be run by hand using different distro styles, such as:
CTDB_NFS_DISTRO_STYLE=systemd-debian \
./tests/run_tests.sh ./tests/UNIT/eventscripts/{06,60}.nfs.*
This fixes known problems for Debian styles, so the tests now pass for
the following values of CTDB_NFS_DISTRO_STYLE:
systemd-redhat
sysvinit-redhat
systemd-debian
sysvinit-debian
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
At the moment test results can be influenced by real system
configuration files.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
For example, in Sys-V init "rquotad" is started by the main "nfs"
service. At the moment the call-out can't distinguish between this
case and "should never be run". Services set to "AUTO" are
hand-stopped/started via service_stop()/service_start() on failure via
restart_after.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This logic needs improving, so factor the decision making into new
functions service_or_manual_stop() and service_or_manual_start().
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
