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Split reads and writes. Logarithmic scale for reads. Support for INET connections to ZEO monitor.
This commit is contained in:
Terry Burton
Steve Schnepp
parent
71bf74782e
commit
fc964e5b01
@ -1,30 +1,41 @@
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#!/usr/bin/perl -Tw
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# Plugin to monitor ZEO load, connected clients and errors/conflicts
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# Plugin to monitor ZEO connected clients, reads, writes and errors/conflicts
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#
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# Author: Terry Burton <tez@terryburton.co.uk>
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#
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# Revisions:
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#
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# 1.0 2010/07/08 First version
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#
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# 1.1 2010/07/09 Split load into reads and writes
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# Reads has logarithmic scale
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# Adjust some scaling factors
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# Support for INET connections, the new default
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#
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# Invoke using symlinks to zeo_monitor_ in the form zeo_monitor_{load,clients,errors}_<storage_name>
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# Invoke using symlinks to zeo_monitor_ in the form zeo_monitor_{clients,reads,writes,errors}_<storage_name>
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#
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# Can be configured manually or by autoconf, for example:
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# This plugin can be configured manually or by autoconf (provided that the ZEO
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# monitor runs on the default port 8091.)
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#
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# root@munin:~ munin-node-configure --shell
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# ln -s /usr/share/munin/plugins/zeo_monitor_ /etc/munin/plugins/zeo_monitor_clients_1
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# ln -s /usr/share/munin/plugins/zeo_monitor_ /etc/munin/plugins/zeo_monitor_clients_temp
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# ln -s /usr/share/munin/plugins/zeo_monitor_ /etc/munin/plugins/zeo_monitor_errors_1
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# ln -s /usr/share/munin/plugins/zeo_monitor_ /etc/munin/plugins/zeo_monitor_errors_temp
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# ln -s /usr/share/munin/plugins/zeo_monitor_ /etc/munin/plugins/zeo_monitor_load_1
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# ln -s /usr/share/munin/plugins/zeo_monitor_ /etc/munin/plugins/zeo_monitor_load_temp
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# ln -s /usr/share/munin/plugins/zeo_monitor_ /etc/munin/plugins/zeo_monitor_reads_1
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# ln -s /usr/share/munin/plugins/zeo_monitor_ /etc/munin/plugins/zeo_monitor_reads_temp
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# ln -s /usr/share/munin/plugins/zeo_monitor_ /etc/munin/plugins/zeo_monitor_writes_1
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# ln -s /usr/share/munin/plugins/zeo_monitor_ /etc/munin/plugins/zeo_monitor_writes_temp
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#
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#
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# Configuration variables:
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#
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# zeomonitorsock - path to the zeo monitor server socket (default /var/run/zeo/zeo-monitor.sock)
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# zeomonitoraddr - address:port of the zeo monitor server socket (default 127.0.0.1:8091)
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# zeomonitorsock - path to the zeo monitor server socket
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#
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# Note: This plugin will attempt to attach to the network socket given by
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# zeomonitoraddr unless the path to a Unix domain socket is given with
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# zeomonitorsock
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#
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# Parameters:
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#
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@ -32,7 +43,15 @@
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# autoconf
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# suggest
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#
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# Configuration example:
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# Configuration examples:
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#
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# Connect to the monitor server running on TCP/4567
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#
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# [zeo_monitor_*]
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# user root
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# env.zeomonitoraddr 127.0.0.1:4567
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#
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# Connect to the monitor server running on a Unix domain socket
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#
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# [zeo_monitor_*]
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# user root
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@ -49,7 +68,9 @@ use Munin::Plugin;
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use File::Basename;
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use IO::Socket::UNIX qw(SOCK_STREAM);
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my $zeomonitorsock = exists $ENV{'zeomonitorsock'} ? $ENV{'zeomonitorsock'} : '/var/run/zeo/zeo-monitor.sock';
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my $zeomonitoraddr = exists $ENV{'zeomonitoraddr'} ? $ENV{'zeomonitoraddr'} : '127.0.0.1:8091';
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($zeomonitoraddr)=$zeomonitoraddr=~/(.*)/;
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my $zeomonitorsock = exists $ENV{'zeomonitorsock'} ? $ENV{'zeomonitorsock'} : '';
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($zeomonitorsock)=$zeomonitorsock=~/(.*)/;
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if (basename($0) !~ /^zeo_monitor_/) {
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@ -88,14 +109,9 @@ if (defined $ARGV[0] and $ARGV[0] eq 'suggest') {
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my @storage_names;
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eval { @storage_names=parse_zeo_monitor(); };
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exit 0 if ( $@ );
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if ( $@ ) {
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chomp $@;
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print "no ($@)\n";
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exit 1;
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}
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print "clients_$_\nload_$_\nerrors_$_\n" foreach @storage_names;
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print "clients_$_\nreads_$_\nwrites_$_\nerrors_$_\n" foreach @storage_names;
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exit 0;
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}
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@ -127,19 +143,24 @@ clients.type GAUGE
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EOF
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}
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if ($mode eq 'load') {
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if ($mode eq 'reads') {
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print <<EOF;
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commits.label Commits (x1000)
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commits.type DERIVE
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commits.min 0
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commits.cdef commits,1000,*
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graph_args --logarithmic --lower-limit 1
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loads.label Loads
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loads.type DERIVE
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loads.min 0
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stores.label Stores (x10)
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EOF
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}
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if ($mode eq 'writes') {
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print <<EOF;
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commits.label Commits (x10)
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commits.type DERIVE
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commits.min 0
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commits.cdef commits,10,*
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stores.label Stores
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stores.type DERIVE
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stores.min 0
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stores.cdef stores,10,*
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EOF
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}
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@ -176,10 +197,15 @@ clients.value $stats{clients}
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EOF
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}
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if ($mode eq 'load') {
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if ($mode eq 'reads') {
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print <<"EOF";
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loads.value $stats{loads}
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EOF
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}
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if ($mode eq 'writes') {
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print <<"EOF";
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commits.value $stats{commits}
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loads.value $stats{loads}
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stores.value $stats{stores}
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EOF
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}
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@ -205,7 +231,12 @@ sub parse_zeo_monitor {
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my $storage_name=shift;
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my $socket=IO::Socket::UNIX->new(Type => SOCK_STREAM,Peer => $zeomonitorsock ) or die("Can't connect to socket: $!\n");
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my $socket;
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if ($zeomonitorsock ne '') {
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$socket=IO::Socket::UNIX->new(Type=>SOCK_STREAM,Peer=>$zeomonitorsock) or die("Can't connect to socket: $!\n");
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} else {
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$socket=IO::Socket::INET->new(Proto=>"tcp",PeerAddr=>$zeomonitoraddr) or die("Can't connect to port: $!\n");
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}
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my $response=join('',<$socket>);
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close $socket;
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