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* Add poller feature for RRDCached queries via SNMP * Docs Update * Update Documentation to include localhost RRDCached monitor. * update doc. * update/fix * Update Applications.md as requested, remove RRDCached Security ref for local polling. * Update Applications.md * Update Applications.md Co-authored-by: Tony Murray <murraytony@gmail.com>
103 lines
3.5 KiB
PHP
103 lines
3.5 KiB
PHP
<?php
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/**
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* rrdcached.inc.php
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*
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* rrdcached application polling module
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* Capable of collecting stats from the agent or via direct connection
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* Only the default tcp port is supported, and unix sockets only work on localhost
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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* @link https://www.librenms.org
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* @copyright 2016 Tony Murray
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* @author Tony Murray <murraytony@gmail.com>
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*/
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use LibreNMS\RRD\RrdDefinition;
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echo ' rrdcached';
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$data = '';
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$name = 'rrdcached';
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$app_id = $app['app_id'];
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if ($agent_data['app'][$name]) {
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$data = $agent_data['app'][$name];
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} else {
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d_echo("\nNo Agent Data. Attempting to connect directly to the rrdcached server " . $device['hostname'] . ":42217\n");
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$sock = fsockopen($device['hostname'], 42217, $errno, $errstr, 5);
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if (! $sock) {
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d_echo("\nNo Socket to rrdcached server " . $device['hostname'] . ":42217 try to get rrdcached from SNMP\n");
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$oid = '.1.3.6.1.4.1.8072.1.3.2.3.1.2.9.114.114.100.99.97.99.104.101.100';
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$result = snmp_get($device, $oid, '-Oqv');
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$data = trim($result, '"');
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$data = str_replace("<<<rrdcached>>>\n", '', $data);
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}
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if (strlen($data) < 100) {
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$socket = \LibreNMS\Config::get('rrdcached');
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if (substr($socket, 0, 6) == 'unix:/') {
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$socket_file = substr($socket, 5);
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if (file_exists($socket_file)) {
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$sock = fsockopen('unix://' . $socket_file);
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}
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}
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d_echo("\nNo SnmpData " . $device['hostname'] . ' fallback to local rrdcached unix://' . $socket_file . "\n");
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}
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if ($sock) {
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fwrite($sock, "STATS\n");
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$max = -1;
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$count = 0;
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while ($max == -1 || $count < $max) {
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$data .= fgets($sock, 128);
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if ($max == -1) {
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$tmp_max = explode(' ', $data);
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$max = $tmp_max[0] + 1;
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}
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$count++;
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}
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fclose($sock);
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} elseif (strlen($data) < 100) {
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d_echo("ERROR: $errno - $errstr\n");
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}
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}
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$rrd_name = ['app', $name, $app_id];
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$rrd_def = RrdDefinition::make()
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->addDataset('queue_length', 'GAUGE', 0)
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->addDataset('updates_received', 'COUNTER', 0)
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->addDataset('flushes_received', 'COUNTER', 0)
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->addDataset('updates_written', 'COUNTER', 0)
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->addDataset('data_sets_written', 'COUNTER', 0)
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->addDataset('tree_nodes_number', 'GAUGE', 0)
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->addDataset('tree_depth', 'GAUGE', 0)
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->addDataset('journal_bytes', 'COUNTER', 0)
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->addDataset('journal_rotate', 'COUNTER', 0);
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$fields = [];
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foreach (explode("\n", $data) as $line) {
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$split = explode(': ', $line);
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if (count($split) == 2) {
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$ds = strtolower(preg_replace('/[A-Z]/', '_$0', lcfirst($split[0])));
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$fields[$ds] = $split[1];
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}
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}
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$tags = compact('name', 'app_id', 'rrd_name', 'rrd_def');
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data_update($device, 'app', $tags, $fields);
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update_application($app, $data, $fields);
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unset($data, $rrd_name, $rrd_def, $fields, $tags);
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