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Clearly identifies where all state files from scripts should go and
allows that location to be easily changed. This patch should not
change any behaviour (outside of eventscript unit tests, where a
clearer location is now used).
CTDB_VARDIR should no longer be overridden. Continue to set
CTDB_DBDIR and similar to override database location in unit tests.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Have wscript do path substitution.
No need to export this and CTDB_ETCDIR here, but test scripts will
still need to do so.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Always check filesystem usage for the database directories.
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): Sat Aug 29 20:08:48 CEST 2015 on sn-devel-104
CTDB should warn by default if too much system memory or swap is used.
The tests have also been tweaked. In particular, the filesystem-only
tests need to initialise the memory information to avoid errors where
meminfo isn't set.
Document the defaults, warning against disabling them.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
New variables CTDB_MONITOR_MEMORY_USAGE and CTDB_MONITOR_SWAP_USAGE.
Both take a pair of <warn_threshold>:<unhealthy_threshold> where each
theshold is specified as a percentage.
This adds a callout to check_thresholds() that is run when the
unhealthy threshold is reached.
Add some combination tests.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
CTDB_MONITOR_FREE_MEMORY and CTDB_MONITOR_FREE_MEMORY_WARN are now
percentages that specify thresholds of acceptable memory usage.
Memory/swap usage in tests also specified as percentages.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This allows both errors (i.e. unhealthy) and warnings for different
thresholds. It replaces CTDB_CHECK_FS_USE.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Will put all the system monitoring in here, simplifying 00.ctdb.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This adds new configuration variable CTDB_RPCINFO_LOCALHOST6.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is now handled by passing the desired number of threads to the
command specified in the dump_stuck_threads variable in .check files.
Remove unused function nfs_dump_some_threads().
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This isn't a straightforward move of code from 60.ganesha to the
callout. Simplifications have been made to allow better
interoperation with the new NFS checking logic.
The following configuration variables have been removed:
CTDB_GANESHA_REC_SUBDIR
Edit NFS ganesha callout to change this location
CTDB_NFS_SERVER_MODE, NFS_SERVER_MODE
Use CTDB_NFS_CALLOUT instead
CTDB_NFS_SKIP_KNFSD_ALIVE_CHECK, CTDB_SKIP_GANESHA_NFSD_CHECK
Disable the corresponding .check file instead
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This is now always enabled. If nfsd thread monitoring is not required
then make CTDB_NFS_CALLOUT point to a wrapper around
nfs-linux-kernel-callout that does not implement "monitor-post".
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Required when automatic address detection can not be used. This can
be the case when running multiple ctdbd daemons/nodes on the same
physical host (usually for testing), using InfiniBand for the private
network or on Linux when sysctl net.ipv4.ip_nonlocal_bind=1.
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 Apr 27 06:10:08 CEST 2015 on sn-devel-104
This was true for the daemon until commit
b4589b954e.
Defaulting to ERR in the ctdb CLI tool encourages logging notices at
ERR level, so default to NOTICE instead.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
There are parentheses missing that stop the default pattern from
matching commands with trailing garbage (e.g. "exportfs.orig").
A careful check of POSIX (and running GNU sed with --posix) suggests
that "\|" isn't a supported way of specifying alternation in a regular
expression. Therefore, it is clearer to switch to extended regular
expressions so that this has a chance of being portable (even though
the point is to print /proc/<pid>/stack, which only works on Linux).
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): Tue Nov 18 06:37:45 CET 2014 on sn-devel-104
Some implementations may not understand RC3164 format messages on the
UDP socket, so add support for RFC5424 message format.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This has most of the advantages of the old logd with none of the
complexity of the extra process. There are several good syslog
implementations that can listen on the UDP port.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Remove --logfile and --syslog daemon options and replace with
--logging.
Modularise and clean up logging initialisation code. The
initialisation API includes an app_name argument that is currently
unused - this will be used in extensions to the syslog backend.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
As far as we know, nobody uses this and it just complicates the
logging subsystem.
Remove all ringbuffer code and documentation. Update the local
daemons startup code correspondingly.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Volker Lendecke <vl@samba.org>
Backup and restore of the cluster filesystem can upset the operation
of 60.ganesha by changing the contents of this subdirectory.
Allow this subdirectory to be configured to a subdirectory that is
ignored by backup and restore processes.
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 Jun 11 09:29:22 CEST 2014 on sn-devel-104
Commit 4ee4925d41 forgot about
CTDB_NATGW_SLAVE_ONLY so it introduces an incorrect failure when this
is set, and CTDB_NATGW_PUBLIC_IFACE or CTDB_NATGW_PUBLIC_IP is unset.
Relax the sanity check to see if CTDB_NATGW_SLAVE_ONLY is set.
Update the documentation to explicitly state that
CTDB_NATGW_PUBLIC_IFACE and CTDB_NATGW_PUBLIC_IP are optional and
unused if CTDB_NATGW_SLAVE_ONLY is set. It would be possible to
insist that CTDB_NATGW_PUBLIC_IFACE and CTDB_NATGW_PUBLIC_IFACE should
be unset in that case. However, it is more reasonable to allow
consistent configuration across nodes except with some nodes
configured slave-only.
Add tests, update infrastructure and fix a thinko in the stub's
"natgwlist" implementation.
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): Mon Apr 14 06:06:49 CEST 2014 on sn-devel-104
Extend CTDB_NATGW_STATIC_ROUTES so that each network can have an
optional gateway that overrides CTDB_NATGW_DEFAULT_GATEWAY.
Signed-off-by: Martin Schwenke <martin@meltin.net>
This has been implied since the command to add the route has had
errors redirected to /dev/null. If infrastucture (e.g. ADS, DNS) is
on the same network as CTDB_NATGW_PUBLIC_IP then no route is
necessary.
Signed-off-by: Martin Schwenke <martin@meltin.net>
This feature was added quite a while ago but was not enabled by
default. It is a useful feature so enable it to dump stack traces of
up to 5 stuck processes by default.
This can be disabled by setting:
CTDB_NFS_DUMP_STUCK_THREADS=0
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): Tue Feb 25 04:06:45 CET 2014 on sn-devel-104
* Add stack dumps for "interesting" processes that sometimes get
stuck, so try to print stack traces for them if they appear in the
pstree output.
* Add new configuration variables CTDB_DEBUG_HUNG_SCRIPT_LOGFILE and
CTDB_DEBUG_HUNG_SCRIPT_STACKPAT. These are primarily for testing
but the latter may be useful for live debugging.
* Load CTDB configuration so that above configuration variables can be
set/changed without restarting ctdbd.
Add a test that tries to ensure that all of this is working.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This includes new manpages for ctdb.7, ctdb.conf.5 and ctdb-tunables.7.
Signed-off-by: Martin Schwenke <martin@meltin.net>
Pair-programmed-with: Amitay Isaacs <amitay@gmail.com>
(This used to be ctdb commit 15b5c6c00c248bc1a8364a6da103296a55d7bfb6)
