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Note that order of sed expressions matters: the expression to delete
comment lines must come first as the second expression would transform
# comment
to
comment
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14826
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
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
The path of the TDB is known, so calculate the file ID (device number
+ inode number) from it and use this to directly filter /proc/locks to
find processes holding locks.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Don't use the arguments yet. They will be used in a simplified
version of the code.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
The main reason for this is to facilitate testing.
Avoid some /proc accesses entirely by using ps(1) (which can be
replaced by a stub when testing) because this script might as well be
more portable in case anyone wants to add lock debugging for a
non-Linux platform. While the "state" format specification isn't
POSIX-compliant, it works on both Linux and FreeBSD so it is a
reasonable improvement.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
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
If nfsconf exists then use it as last resort to attempt to extract
[statd]:name from /etc/nfs.conf.
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>
Instead of master/slave.
Nearly all of these are simple textual substitutions, which preserve
the case of the original. A couple of minor cleanups were made in the
documentation (such as "LVSMASTER" -> "LVS leader").
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Instead of master/slave.
Nearly all of these are simple textual substitutions, which preserve
the case of the original.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Till now 50.samba script was based on RHEL versions <=6 where we didn't
have separate start up script for nmb and smbd used to start nmbd when
required. Now that nmbd has its own start up script named "nmb" it is
reasonable to have "nmb" as default value for CTDB_SERVICE_NMB inside
new 48.netbios ctdb script.
Signed-off-by: Anoop C S <anoopcs@redhat.com>
Reviewed-by: Guenther Deschner <gd@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This change basically moves out nmbd references from 50.samba script to
a new 48.netbios script. Accordingly ctdb test scripts are tweaked to
cope with newly added script.
Signed-off-by: Guenther Deschner <gd@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
ss added square brackets around IPv6 addresses in versions > 4.12.0
via commit aba9c23a6e1cb134840c998df14888dca469a485. CentOS 7 added
this feature somewhere mid-release. So, backward compatibility is
obviously needed.
As per the comment protocol/protocol_util.c should probably print and
parse such square brackets. However, for backward compatibility the
brackets would have to be stripped in both places in
update_tickles()... or added to the ss output when missing. Best to
leave this until we have a connection tracking daemon.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14227
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This covers the following:
SC2166: Prefer [ p ] && [ q ] as [ p -a q ] is not well defined.
SC2166: Prefer [ p ] || [ q ] as [ p -o q ] is not well defined.
POSIX agrees that -a and -o should not be used:
https://pubs.opengroup.org/onlinepubs/9699919799/utilities/test.html
Fixing these doesn't cause much churn.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Commit ea7708d8c7 simplified
01.reclock.script and removed include of functions file which is
required for setting CTDB_HELPER_BINDIR and for die() function.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
The "init" event is only run once so don't bother caching the
configured value of the recovery lock. Add some extra error checking.
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): Fri Jul 26 04:52:04 UTC 2019 on sn-devel-184
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14017
CTDB should start as a disabled unit (systemd) in most of the
distributions and, when trying to enable it for the first time, user
should get an unconfigured, or similar, error.
Depending on /etc/ctdb/nodes file will give a clear direction to final
user on what is needed in order to get cluster up and running. It should
work like previous ENABLED=NO variables in SySV like initialization
scripts.
Signed-off-by: Rafael David Tinoco <rafaeldtinoco@ubuntu.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
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
CTDB's system memory monitoring in 05.system.script monitors both main
memory and swap. The swap monitoring was originally based on
the (possibly incorrect, see below) idea that swap space stacks on top
of main memory, so that when a system starts filling swap space then
this is supposed to be a good sign that the system is running out of
memory. Additionally, performance on a Linux system tends to be
destroyed by the I/O associated with a lot of swapping to spinning
disks.
However, some platforms default to creating only 4GB of swap space
even when there is 128GB of main memory. With such a small swap to
main memory ratio, memory pressure can force swap to be nearly full
even when a significant amount of main memory is still available and
the system is performing well. This suggests that checking swap
utilisation might be less than useful in many circumstances.
So, remove the separate swap space checking and change the memory
check to cover the total of main memory and swap space.
Test function set_mem_usage() still takes an argument for each of main
memory and swap space utilisation. For simplicity, the same number is
now passed twice to make the intended results comprehensible. This
could be changed later.
A couple of tests are cleaned up to no longer use hard-coded
/proc/meminfo and ps output.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
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>
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
The alternative seems to be to try something via CTDB_NFS_CALLOUT.
That would be complicated and seems like overkill for something this
simple.
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>
The situation for NFS config has got more complicated and is probably
broken in statd-callout on Debian-like systems at the moment. Allow
several alternative configuration names to be tried. Stop after the
first that is found and loaded.
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>
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>
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>
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>
ctdbd will start without a recovery lock configured. It will log a
message saying that this is not optimal. However, a careless user may
overlook both this message and the importance of setting a recovery
lock. If the existing example configuration is uncommented then the
directory containing it will be created (by 01.reclock.script) and the
failure (i.e. multiple nodes able to take the lock) will be confusing.
Instead, change the example setting to one that will result in banned
nodes, encouraging users to consciously configure (or deconfigure) the
recovery lock. Tweak the corresponding comment.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13790
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
gstack isn't widely available, so provide a simple function that does
the same thing if it gstack can't be found.
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 11 14:47:21 CEST 2018 on sn-devel-144
Preparation for recommending configuration for each script next to the
actual script.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is the initial location that will be used by the new
multi-component aware event daemon.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Drop function loadconfig(), replacing uses with "load_system_config
ctdb". Drop translation of old-style configuration to new
configuration file. Drop export of debugging variables. Drop
documentation and configuration examples.
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 May 17 07:03:04 CEST 2018 on sn-devel-144
Put it in a function so it is easy to move to common code just in case
it is needed somewhere else.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
