Sebastian Harl [Sun, 1 Feb 2009 21:48:01 +0000 (22:48 +0100)]
postgresql plugin: Added support for <Result> blocks.
This is a replacement for the "Column" config option (which has been
deprecated). <Result> blocks allow for much more flexible handling of the
data. Besides being able to use data types with multiple data sources, the
plugin now supports to generate the type instance using information from the
database.
An example <Result> block might look like this (taken from the manpage):
<Result>
Type counter
InstancePrefix "rt36_tickets"
InstancesFrom "type"
ValuesFrom "count"
</Result>
Sebastian Harl [Sun, 1 Feb 2009 16:37:52 +0000 (17:37 +0100)]
postgresql plugin: Reinitialize a database after reconnecting.
During initialization we get the right version of each query definition. After
reconnecting, the PostgreSQL server version might have changed, so we might
need to update some of the query definitions.
Sebastian Harl [Sun, 1 Feb 2009 16:36:25 +0000 (17:36 +0100)]
utils_complain: Added macro c_would_release().
This macro returns true if the specified complaint would be released, false
else. This is useful e.g. to do further actions when releasing a complaint.
Florian Forster [Sun, 1 Feb 2009 14:46:27 +0000 (15:46 +0100)]
csv plugin: Make the output to STDOUT compatible to the exec plugin.
Probably not that useful, but the output written to STDOUT by the csv
plugin is not in the form accepted by the exec plugin. This makes some
potentially interesting hacks possible ;)
Florian Forster [Sat, 31 Jan 2009 22:55:30 +0000 (23:55 +0100)]
processes plugin: Make sure ARG_MAX is defined.
Apparently the GNU libc 2.8 removed the macro for some unholy reason. We
either use `sysconf(3)' transparently (if available) or 4kByte (the
POSIX minimum).
Florian Forster [Sat, 24 Jan 2009 10:00:30 +0000 (11:00 +0100)]
tcpconns plugin: Fix an endianness problem under *BSD.
The port numbers were assumed to be in the host's byte order, when in
fact they are in network byte order (big endian). The patch adds `ntohs'
where necessary to fix this problem.
Doug MacEachern [Tue, 20 Jan 2009 09:27:10 +0000 (10:27 +0100)]
contrib/cussh.pl: Add the PUTNOTIF command.
I was using this to test notifications for jcollectd like so:
echo "PUTNOTIF host=foo severity=warning message=my perl is rusty" |
perl -Mblib=bindings/perl contrib/cussh.pl
Florian Forster [Mon, 19 Jan 2009 12:05:23 +0000 (13:05 +0100)]
bind plugin: Don't use LLONG_{MIN,MAX} to increase portability.
Sagly, there's a bug in some versions of GCC/GNU libc which leads to LLONG_*
not being defined. We'll check the return value of strtoll for `>0' and `<0',
which should do the trick, too.
Bruno Prémont [Sat, 17 Jan 2009 10:56:30 +0000 (11:56 +0100)]
bind plugin: Add a new plugin for BIND 9.5 and 9.6 statistics.
Attached are patches for collectd-4.5.x and collectd-4.4.x series for a
plugin to collect statistics from a ISC Bind server.
ISC Bind introduces XML-based statistics which can be fetched via HTTP
starting with bind-9.5.0 and updated the XML structure with bind-9.6.0.
Both XML formats are supported by this plugin.
To enable access to these statistics, use the following configuration
block:
Suggestions on improving the grouping of statistics values are welcome,
currently the following groups are implemented:
RRQueriesIn type=dns_qtype
Requests type=dns_request
QueryResults type=dns_rcode
Updates type=dns_update
ZoneMaintenance type=dns_zops
Resolver type=dns_resolver
Florian Forster [Sat, 17 Jan 2009 10:19:08 +0000 (11:19 +0100)]
network plugin: Make the receive thread even faster.
On very busy systems, the thread apparently may not be scheduled often enough.
So the receive buffer fills up quickly and data may be lost.
This patch changes the `mutex_lock' to a `mutex_trylock' and data is only
appended to the global receive-queue if the lock can be obtained without
blocking.
If the lock cannot be obtained without blocking, the data is instead appended
to a private queue and that queue is appended to the global queue when the lock
can next be taken.
Florian Forster [Sat, 17 Jan 2009 10:01:10 +0000 (11:01 +0100)]
collectd: Don't *abort* on the first read-error with the `-T' option.
The `-T' option used to basically quit the daemon right away when the
first read function of a plugin failed. This patch changes the behavior,
so that:
- All read-functions are tried. If one or more fail, the daemon will
exit with a non-zero exit status, but all read-functions will be
tried.
- Don't quit if one read-function failed without calling all the
shutdown-functions first. This will clean up the UNIX socket of the
unixsock plugin and stuff like that.
Florian Forster [Sat, 17 Jan 2009 09:39:53 +0000 (10:39 +0100)]
openvpn plugin: Added support for LZO compression.
There are four counters for pre/post (de)compression. The code compares
the pre/post counters and submits the current compression ratio based on
the counter change rate.
The type `compression_ratio' (gauge) is used to store the data.
Sebastian Harl [Sun, 11 Jan 2009 14:10:54 +0000 (15:10 +0100)]
libcollectdclient: Added header lcc_features.h.
This header provides various macros and functions that may be used to
determine the version of libcollectdclient (i.e. collectd). The file will be
auto-created from lcc_features.h.in by configure.
The macro LCC_VERSION (previously defined in client.h) has been moved to this
header as well and has been renamed to LCC_API_VERSION.
This allows for fine grained version checks at compile- and runtime.
Florian Forster [Tue, 30 Dec 2008 13:44:39 +0000 (14:44 +0100)]
network plugin: Fix an invalid size of buffer being used.
When specifying the amount of data to copy, we used `sizeof (buffer)' where
`buffer' is a pointer, giving 4 or 8 bytes, depending on the architecture (and
not depending on the actual buffer size). This results in the `type' being sent
much more often than necessary and sometimes not sending a new type when is was
actually necessary. The only prominent case in the default configuration(s) was
`cpufreq' being used instead of `cpu', though.
While in the process, the global `type' buffer was replaced, because an
appropriate buffer is in `value_list_t' now.
Much thanks to Bruno Prémont for reporting and debugging this issue :)
Florian Forster [Tue, 30 Dec 2008 15:46:38 +0000 (16:46 +0100)]
libcollectdclient: Don't use `PF_UNIX', it's broken on Mac OS X.
Under Mac OS X (10.4, possibly others), PF_UNIX is defined as PF_LOCAL, which
in turn is defined as AF_LOCAL. AF_LOCAL, however, is only defined if
POSIX_C_SOURCE is not.
Florian Forster [Tue, 30 Dec 2008 13:44:39 +0000 (14:44 +0100)]
network plugin: Fix an invalid size of buffer being used.
When specifying the amount of data to copy, we used `sizeof (buffer)' where
`buffer' is a pointer, giving 4 or 8 bytes, depending on the architecture (and
not depending on the actual buffer size). This results in the `type' being sent
much more often than necessary and sometimes not sending a new type when is was
actually necessary. The only prominent case in the default configuration(s) was
`cpufreq' being used instead of `cpu', though.
While in the process, the global `type' buffer was replaced, because an
appropriate buffer is in `value_list_t' now.
Much thanks to Bruno Prémont for reporting and debugging this issue :)
Florian Forster [Sat, 20 Dec 2008 15:54:32 +0000 (16:54 +0100)]
src/utils_subst.[ch]: Implement `subst_string'.
Works like `subst', but instead of specifying start and end offsets you
specify `needle', the string that is to be replaced. If `needle' is found
in `string' (using strstr(3)), the offset is calculated and `subst' is
called with the determined parameters.
Sebastian Harl [Fri, 19 Dec 2008 16:00:56 +0000 (17:00 +0100)]
collectd.conf(5): Updated the section about the "mysql" plugin.
* Do not talk about what RRD files things end up in - there is more than
"rrdtool" by now.
* Updated the section number of the "Server Status Variables" in the MySQL
reference manual.
* Mention that the MySQL user does not need any special privileges.
collectd-nagios: add new "percentage" aggregate function.
the percentage aggregate function takes exactly two values. it
computes the percentage of the first value versus the sum of the first
and the second value. very useful for checking df values like:
Sebastian Harl [Tue, 9 Dec 2008 11:27:47 +0000 (12:27 +0100)]
collectd-nagios: If DSs are specified, sort the values accordingly.
If a user specifies DSs on the command line, the order or the values might
matter (e.g. when using the upcoming "percentage" consolidation function). So,
in this case we now order the values according to the order of the specified
DSs.
This patch replaces the function ignore_ds() with filter_ds() which is called
once in do_check(). This removes the need to check for ignored values in all
consolidation function implementations.
Sebastian Harl [Tue, 25 Nov 2008 16:53:53 +0000 (17:53 +0100)]
processes plugin: Get complete command line for processes on Linux as well.
On Linux, /proc/<pid>/cmdline is now used to determine the complete command
line of a process which may then be used with the "ProcessMatch" configuration
option.
If a registered config key equals NULL, it is now ignored. Before, this would
cause a segfault. As this has happened a few times in the past, we not handle
it sanely.
Sebastian Harl [Fri, 5 Dec 2008 16:11:16 +0000 (17:11 +0100)]
processes plugin: Fixed a segfault when handling unknown config options.
When using STATIC_ARRAY_SIZE() to determine the number of config keys, the
list must not include NULL. Else, the configfile module will handle that as
another config key and dereference it in case no previous key matched, i.e.
when handling unknown config options.
Florian Forster [Wed, 3 Dec 2008 21:56:18 +0000 (22:56 +0100)]
configure.in: Check for `kvm_openfiles'.
Check for both, `kvm_nlist' and `kvm_openfiles' before enabling the
tcpconns plugin with libkvm: Solaris has a libkvm, too, but doesn't
provide the necessary functions to read the connections with it. At
least not in the same way.
Florian Forster [Wed, 3 Dec 2008 21:07:24 +0000 (22:07 +0100)]
configure.in: Some improvements for Solaris, expecially the swap plugin.
If Solaris is detected, "-D_POSIX_PTHREAD_SEMANTICS" will be added to
CPPFLAGS automatically now.
If sys/swap.h is not found, print a message suggesting to build a 64bit
binary. (sys/swap.h cannot be included when a 32bit binary is being built,
but it's most likely present under Solaris.)
Enable the swap plugin only if sys/swap.h has been found (when under
Solaris).