Sebastian Harl [Mon, 16 Jun 2008 21:02:36 +0000 (23:02 +0200)]
Use -Wall -Werror (AM_CFLAGS) when building any module.
A few plugins have to set custom CFLAGS. When using "<plugin>_la_CFLAGS =",
$(AM_CFLAGS) will no longer be used when compiling <plugin> as that resets the
CFLAGS to the empty string. So, in that case, we have to explicitly add
$(AM_CFLAGS) to the custom CFLAGS of that plugin.
After doing so, a couple of problems have been identified which have been
fixed in this patch as well. That includes a possible SEGFAULT in the snmp
plugin which was missing an argument to WARNING().
Signed-off-by: Sebastian Harl <sh@tokkee.org> Signed-off-by: Florian Forster <octo@huhu.verplant.org>
Florian Forster [Thu, 12 Jun 2008 09:44:23 +0000 (11:44 +0200)]
src/plugin.[ch]: Add `notification meta data' to notification_t.
The plan is to have arbitrary values attached to notifications that user
defined actions can use to get machine parseable values for building
own notification strings or the like.
For example, the threshold checking stuff will (in the near future) add
the current (offending) value as well as the threshold values themselves
to the notification, so that notifying plugins don't need to parse the
(freely formatted) notification string to get that information.
Michał Mirosław [Wed, 11 Jun 2008 21:38:14 +0000 (23:38 +0200)]
thermal plugin: Linux ACPI thermal zone plugin
Hello Florian,
On Wed, Jun 11, 2008 at 02:19:14PM +0200, Florian Forster wrote:
> On Mon, Jun 09, 2008 at 08:33:23PM +0200, Michał Mirosław wrote:
> > Here's temperature monitoring plugin using Linux ACPI thermal zone
> > data from /sys/class/thermal/ or /proc/acpi/thermal_zone/.
> thank you very much for your patch :)
> I have a few (minor) requests for changes though ;)
[cut]
I updated the patch basing on your suggestions. You probably can use
the 'walk_directory()' function in other plugins. And it would be
useful to have some standard functions to use in config callback
like boolean entry parser or common ignorelist entry names/parser.
I could send a patch for some cleanups if nobody is working on that,
yet.
Best Regards,
Michał Mirosław
ACPI thermal zone plugin for collectd 4.4.1
Here's temperature monitoring plugin using Linux ACPI thermal zone
data from /sys/class/thermal/ or /proc/acpi/thermal_zone/. Since
this is the same source of data, only first directory found is used.
Plugin configuration:
<Plugin thermal>
ForceUseProcfs true # default is false (prefer new sysfs interface)
Device "THRM" # default: no selection (include all devices found)
IgnoreSelected true # default is false
</Plugin>
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Florian Forster <octo@huhu.verplant.org>
Inter-| sta-| Quality | Discarded packets | Missed | WE
face | tus | link level noise | nwid crypt frag retry misc | beacon | 22
ath0: 0004 21. -73. -94. 21841 0 0 0 0 0
Madwifi writes the actual dBm values into /proc.
So we have (at least for now) three possible types of values:
( x > 0.0 && x <= 100.0 ) current implementation: x is in percent (?)
( x > 100.0 && x <= 255.0 ) broadcom: range intersects with percents but
values below 100.0 (100.0 - 255.0 = -155.0 dBm)
are somewhat unlikely to occur
( x < 0.0 ) atheros: value is already in dBm
A patch which implements the two additional possibilities in collectd's wireless
plugin can be found in the OpenWrt Trac:
I have noticed that disk graphs are displayed by collection.cgi as
disk (71687000) instead of the correct disk name on 2.4.x linux
kernels.
The problem seems caused by the fact that the position of disk name of
/proc/partitions (used in 2.4 kernels) differs from /proc/diskstats
(used in 2.6 kernels).
I include as attachment a patch that seems to fix this problem.
I have tested it on 2.4.20 (REDHAT 9) and 2.6.24.4 (Debian Sid) systems.
Thanks a lot for Collectd. It is a _very_ useful program.
Florian Forster [Sat, 7 Jun 2008 18:39:04 +0000 (20:39 +0200)]
network plugin: Don't blindly re-initialize everything in the init callback.
Under Solaris the init functions are called every time the kstat chain
is updated. Since, among other things, send_buffer_fill was set to zero
here, the plugin ``forgot'' about values.
Thank you very much to Eric LeBlanc for debugging this issue.
Oleg King [Wed, 4 Jun 2008 13:22:45 +0000 (15:22 +0200)]
notify_email plugin: Add plugin to send notifications via email.
Hello, Collectd.
I wrote a new plugin - notify_email.
This plugin will notify you when threshold conditions are met - one email per
one threshold notify. Email can be sent more then one recipient. Plugin does
this by initiating SMTP session to specified SMTP server (it can also do SMTP
AUTH if needed).
Plugin uses libesmtp library.
Please note:
1. SMTPFrom value sometimes is checked by SMTP server - you
can get failure from SMTP server if you are using not-existent
email.
2. SMTPSubject can contain two '%s' - first for severity and
second for hostname.
3. Hostname used in SMTP connection - is hostname_g, hostname
that is used for all collectd host identification. If it cannot
be resolved by internet DNS - you can expect problems when sending
emails.
Those options may be used to disable peer SSL certificate or peer host name
verification respectively. The apache and nginx plugins already support those
options, so this makes configuration of plugins using libcurl more consistent.
Signed-off-by: Sebastian Harl <sh@tokkee.org> Signed-off-by: Florian Forster <octo@huhu.verplant.org>
Sebastian Harl [Thu, 29 May 2008 22:09:18 +0000 (00:09 +0200)]
perl plugin: Don't abort if initializing the interpreter failed.
There is no reason to shutdown collectd completely just because of some
Perl specific error. An error message is logged in this case, so the user
has means to detect it.
Signed-off-by: Sebastian Harl <sh@tokkee.org> Signed-off-by: Florian Forster <octo@huhu.verplant.org>
Oleg King [Tue, 27 May 2008 14:48:51 +0000 (16:48 +0200)]
processes plugin: Add the `ProcessMatch' option.
Hello!
There is a patch for processes plugin:
1. Added support for libkvm, so processes plugin will be run under
FreeBSD.
2. Added ProcessMatch "NAME" "REGEXP" directive, that adds process
into list of processes that we watch on, but with identification by
Regexp. Rexexp matched against command line, if command line is
empty, than against task name.
3. Changed way we finding processes. Now we match not only first
process, but all processes that match selected criteria. This allows
to make some type of "grouping":
Process "httpd"
Process "dhclient"
ProcessMatch "only-my-perl-program" "perl(.*)my-program\.pl"
ProcessMatch "perl-programs" "^/usr/bin/perl"
ProcessMatch "all-tasks" "(.*)"
Patch is attached to this message.
To octo: it is neede to make some thiungs I have not done:
1. make changes in manpages
2. make changes in config file
3. write rules that users should use when giving names with ProcessMatch
Sebastian Harl [Sat, 24 May 2008 18:32:43 +0000 (20:32 +0200)]
src/liboconfig/oconfig.c: Declare "c_file" as "const char *".
This fixes an "assignment discards qualifiers from pointer target type"
warning. That string stores the name of the config file which is not
going to be modified by liboconfig.
Signed-off-by: Sebastian Harl <sh@tokkee.org> Signed-off-by: Florian Forster <octo@huhu.verplant.org>
Sebastian Harl [Thu, 22 May 2008 11:37:57 +0000 (13:37 +0200)]
src/plugin.c: Don't require write callbacks to be present.
plugin_dispatch_values() used to fail, if no write callbacks had been
registered. As that function is used to update the cache and check
threshold as well, this limited the flexibility of collectd setups. Thus,
the error message has been downgraded to a one-time complaint.
Signed-off-by: Sebastian Harl <sh@tokkee.org> Signed-off-by: Florian Forster <octo@huhu.verplant.org>
Sebastian Harl [Thu, 22 May 2008 11:34:54 +0000 (13:34 +0200)]
src/utils_complain.[ch]: Reintroduced an improved version of the complain mechanism.
This has been asked for a couple of times and since I need it now, here it
goes... ;-) I've done the following modifications to Florian's original
version:
* Renamed "plugin_complain" to "c_complain".
* Renamed "plugin_relief" to "c_release", thus using two verbs which is
more consistent imho.
* Added "c_complain_once" to report a complaint only once.
* Use timestamps instead of counting multiples of "interval_g" to
determine when to report again. Thus, multiple calls to the complain-
functions in one interval are allowed.
Signed-off-by: Sebastian Harl <sh@tokkee.org> Signed-off-by: Florian Forster <octo@huhu.verplant.org>
Sebastian Harl [Thu, 22 May 2008 11:36:00 +0000 (13:36 +0200)]
src/utils_llist.c: Improved robustness against NULL pointers.
All functions searching for some list entry now return NULL if the given
list equals NULL. Imho, that's the expected behavior. Also, it removes the
need to check the lists from the calling function while that function
usually checks the returned list entry anyway.
Signed-off-by: Sebastian Harl <sh@tokkee.org> Signed-off-by: Florian Forster <octo@huhu.verplant.org>
Sebastian Harl [Wed, 21 May 2008 14:50:07 +0000 (16:50 +0200)]
collectd-nagios: Updated to the new "unixsock" protocol.
When disambiguating the protocol used by the unixsock plugin in commit 90287c6d240a168fca8d01f8330e2e2263e1f0a4 ("Disambiguated the protocol used
by the unixsock (and other) plugins.") the formatting of the return values
of the "GETVAL" command has been modified. This patch updates
collectd-nagios to handle the new format correctly.
Signed-off-by: Sebastian Harl <sh@tokkee.org> Signed-off-by: Florian Forster <octo@huhu.verplant.org>
Sebastian Harl [Mon, 19 May 2008 21:12:42 +0000 (23:12 +0200)]
configure: Reformatted the configuration summary.
The name of the "desktop_notification" plugin was too long to fit into the
formatting of the summary printed at the end of the configure run. To keep
the other patch readable, fixing this has been split into an extra patch.
Signed-off-by: Sebastian Harl <sh@tokkee.org> Signed-off-by: Florian Forster <octo@huhu.verplant.org>
Sebastian Harl [Mon, 19 May 2008 21:08:17 +0000 (23:08 +0200)]
desktop_notification: Added a plugin to send desktop notifications.
This plugin sends desktop notifications to a notification daemon, as
defined in the Desktop Notification Specification (see
http://www.galago-project.org/specs/notification/).
The timeout after which to expire the displayed notification may be
configured in collectd.conf.
Signed-off-by: Sebastian Harl <sh@tokkee.org> Signed-off-by: Florian Forster <octo@huhu.verplant.org>
Florian Forster [Tue, 13 May 2008 12:28:58 +0000 (14:28 +0200)]
src/utils_cmd_flush.c: Add the `identifier' option.
Using something like
FLUSH plugin=rrdtool identifier=localhost/cpu-0/cpu-idle
will now only flush the local cpu-0/cpu-idle value, only using the rrdtool
plugin.
This is meant to be used in frontends which want to display up-to-date graphs
but there are too many hosts/rrd files to update them ``live'', i. e. without
caching.
Sebastian Harl [Thu, 1 May 2008 23:13:24 +0000 (01:13 +0200)]
daemon: Ignore SIGPIPE.
The default action for the PIPE signal is to terminate the process. This
is not really what we want for collectd, as e.g. a client of the unixsock
plugin (which might even be running without root privileges) could kill
the daemon by closing the socket right after sending a request.
The signal now gets ignored and each I/O function is checked for success.
To simply that, the unixsock's output stream is now configured to be line
buffered, removing the need to call fflush() (which could fail as well and
would have to be checked for success).
While I was at it, I renamed the sigaction struct for SIGCHLD to fit the
coding style used elsewhere in collectd.
Signed-off-by: Sebastian Harl <sh@tokkee.org> Signed-off-by: Florian Forster <octo@huhu.verplant.org>
Sebastian Harl [Thu, 1 May 2008 10:48:02 +0000 (12:48 +0200)]
Add libiptc.
libiptc is not meant to be a public interface by upstream. Debian has thus
removed it from all packages. To be able to use it, we need to take care
of it ourselves.
The configure script now checks, if libiptc is available and uses the
shipped version as a fallback.
The following changes to the libiptc sources were required:
* added copyright headers mentioning the "Netfilter Core Team" as author
* changed libiptc/* includes to * only
* made libiptc.c:standard_target_map() static
Signed-off-by: Sebastian Harl <sh@tokkee.org> Signed-off-by: Florian Forster <octo@huhu.verplant.org>