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Commit Graph

28 Commits

Author SHA1 Message Date
Martin Schwenke
0247fd8a02 ctdb-scripts: Avoid ShellCheck warning SC2162
SC2162 read without -r will mangle backslashes

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-06-24 09:49:33 +00:00
Martin Schwenke
7f3a0c7e9c ctdb-scripts: Parameterise /etc directory to aid testing
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>
2022-06-24 09:49:32 +00:00
Martin Schwenke
337ef7c1b4 ctdb-scripts: Set NFS services to "AUTO" if started by another service
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>
2022-06-24 09:49:32 +00:00
Martin Schwenke
8b8660d883 ctdb-scripts: Refactor the manual RPC service start/stop
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>
2022-06-24 09:49:32 +00:00
Martin Schwenke
cd018d0ff5 ctdb-scripts: Simplify and rename basic_stop() and basic_start()
Drop the argument.  These now just stop/start the overall NFS service,
so rename them appropriately.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-06-24 09:49:32 +00:00
Martin Schwenke
09fd1e5579 ctdb-scripts: Move nfslock out of basic_stop() and basic_start()
These are only called in one place and should be done inline, since
that is less confusing.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-06-24 09:49:32 +00:00
Martin Schwenke
a43a1ebe51 ctdb-tests: Reformat script
Samba is reformatting shell scripts using

  shfmt -w -p -i 0 -fn

so update this one before editing.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-06-24 09:49:32 +00:00
Martin Schwenke
466aa8b6f5 ctdb-scripts: Ignore ShellCheck SC3013 for test -nt
In ShellCheck 0.7.2, POSIX compatibility warnings got their own SC3xxx
error codes, so now both the old and new codes need to be ignored.

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 25 10:06:48 UTC 2021 on sn-devel-184
2021-06-25 10:06:48 +00:00
Martin Schwenke
642dc6ded6 ctdb-scripts: Use nfsconf as a last resort get nfsd thread count
If nfsconf exists then use it as last resort to attempt to extract
[nfsd]:threads from /etc/nfs.conf.

Invocation of nfsconf requires "|| true" because this script uses "set
-e".  Add a stub that always fails to at least test this much.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14444
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 Jul 27 07:06:58 UTC 2020 on sn-devel-184
2020-07-27 07:06:57 +00:00
Rafael David Tinoco via samba-technical
843fbb1207 ctdb-scripts: Fix tcp_tw_recycle existence check
net.ipv4.tcp_tw_recycle has been removed from Linux 4.12 but, still,
makes sense to check its existence. Unfortunately, current check does
not test for the procfs file existence. This commit fixes the issue.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13984

Signed-off-by: Rafael David Tinoco <rafaeldtinoco@ubuntu.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>

Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Tue Jun  4 23:31:24 UTC 2019 on sn-devel-184
2019-06-04 23:31:24 +00:00
Martin Schwenke
10291d91f2 Revert "ctdb-scripts: Do not "correct" number of nfsd threads when it is 0"
I thought this was being triggered during automated testing.
However, it appears that a poor choice of fixed ports for NFS RPC
services was the real problem.  Revert, since the original behaviour
may be useful.

This reverts commit f1a1c300e1.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2019-04-12 07:11:30 +00:00
Martin Schwenke
f1a1c300e1 ctdb-scripts: Do not "correct" number of nfsd threads when it is 0
While 0 may indicate that all threads have exited after being stuck,
it may also indicate that nfsd should not be running due to being shut
down.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13860

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@samba.org>

Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Sun Mar 31 11:47:44 UTC 2019 on sn-devel-144
2019-03-31 11:47:44 +00:00
Martin Schwenke
95283bdf2e ctdb-scripts: Default to using systemd services in NFS call-out
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13860

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@samba.org>
2019-03-31 10:45:20 +00:00
Martin Schwenke
a8fafd377f ctdb-scripts: Add systemd services to NFS call-out
At least Red Hat and Debian appear to use (a variant of?) the upstream
systemd units for NFS, so adding support for these services is
relatively easy.  Distributions using Sys-V init can patch the
call-out to use the relevant Sys-V init services.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13860

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@samba.org>
2019-03-31 10:45:20 +00:00
Martin Schwenke
708c04071a ctdb-scripts: Start NFS quota service if defined
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13860

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@samba.org>
2019-03-31 10:45:20 +00:00
Martin Schwenke
42103b5686 ctdb-scripts: Stop/start mount/rquotad/status via NFS call-out
When an NFS check restarts a failed service by hand then systemd will
be unable to stop or start this service again because (at least) the
PID file will be wrong.  Do this via the NFS Linux kernel call-out
instead.  Allow the call-out to use the services instead of doing
manual restarts.  Add variables for mount, status and rquotad services
to support this.

Adding systemd NFS services to the call-out will follow.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13860

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@samba.org>
2019-03-31 10:45:20 +00:00
Martin Schwenke
8de0a339b5 ctdb-scripts: Factor out nfs_load_config()
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13860

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@samba.org>
2019-03-31 10:45:20 +00:00
Martin Schwenke
e72c3c800a ctdb-scripts: Add test variable CTDB_NFS_DISTRO_STYLE
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13860

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@samba.org>
2019-03-31 10:45:20 +00:00
Martin Schwenke
9981353ab7 ctdb-scripts: Rename variable nfslock_service to nfs_lock_service
There will be more of these variable for other services so, for
readability, it makes sense for them to start with "nfs_".

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13860

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@samba.org>
2019-03-31 10:45:20 +00:00
Martin Schwenke
d7e187c1a7 ctdb-scripts: Reindent some functions prior to making changes
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13860

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@samba.org>
2019-03-31 10:45:20 +00:00
Martin Schwenke
e96c122790 ctdb-scripts: Avoid shellcheck warning SC2039 (test -nt operator)
SC2039: In POSIX sh, -nt is not supported.

This script is specific to the Linux NFS implementation.  The -nt
operator is well supported in Linux shells (e.g. dash, bash, ksh).
The alternatives (e.g. using stat(1)) would result in less readable
code.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-07-21 02:24:26 +02:00
Martin Schwenke
9ec9e6f77b ctdb-scripts: Quote some variable expansions
This avoids relevant shellcheck warnings.  This is most of the
shellcheck low hanging fruit in the non-test code.  Many of the other
warnings produced by shellcheck are either false positives, are
non-trivial to fix or a fix may result in worse code.

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): Wed Jul  6 08:15:49 CEST 2016 on sn-devel-144
2016-07-06 08:15:49 +02:00
Martin Schwenke
48d1fd8299 ctdb-scripts: Add eventscript 06.nfs
This generates takeip-pre and releaseip-pre call-out events.

One use is to put NFS into grace before an IP is assigned to an
interface.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-06-08 10:33:19 +02:00
Martin Schwenke
4a658440e1 ctdb-scripts: Missing NFS thread count file should just produce warning
This currently causes monitor failure.

Log a warning instead.  If there is a transient issue, such as NFS
being restarted in the background, then the thread count file should
be there the next time around so the count can be adjusted if
necessary.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2016-04-17 13:54:13 +02:00
Martin Schwenke
d7424f97c9 ctdb-scripts: Add exportfs cache to NFS Linux kernel callout
exportfs can hang when, for example, DNS is flakey.  Given that
exports don't change much, it makes sense to cache them.

Don't try to add error handling when exportfs fails but do print a
warning.  Proper error handling can be added separately.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2015-12-04 09:17:17 +01:00
Martin Schwenke
b6a3c1decd ctdb-scripts: Implement registration in nfs-linux-kernel-callout
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2015-07-14 09:57:18 +02:00
Martin Schwenke
fa6f22d7ae ctdb-scripts: Add registration for CTDB_NFS_CALLOUT operations
This is an optimisation to avoid forking the callout for operations
that are not implemented.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2015-07-14 09:57:18 +02:00
Martin Schwenke
9c87d1dd29 ctdb-scripts: Parameterise 60.nfs with $CTDB_NFS_CALLOUT
The goal is to have a single NFS eventscript.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2015-07-14 09:57:18 +02:00