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https://github.com/librenms/librenms.git
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1b956853ad
git-svn-id: http://www.observium.org/svn/observer/trunk@2340 61d68cd4-352d-0410-923a-c4978735b2b8
67 lines
2.6 KiB
PHP
Executable File
67 lines
2.6 KiB
PHP
Executable File
<?php
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$class = 'temperature';
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$unit = 'C';
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$query = "SELECT * FROM sensors WHERE sensor_class='$class' AND device_id = '" . $device['device_id'] . "' AND poller_type='snmp'";
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$sensor_data = mysql_query($query);
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while ($sensor = mysql_fetch_assoc($sensor_data))
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{
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echo("Checking temp " . $sensor['sensor_descr'] . "... ");
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for ($i = 0;$i < 5;$i++) # Try 5 times to get a valid temp reading
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{
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if ($debug) echo("Attempt $i ");
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$sensor_value = snmp_get($device, $sensor['sensor_oid'], "-OUqnv", "SNMPv2-MIB");
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$sensor_value = trim(str_replace("\"", "", $sensor_value));
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if ($sensor_value != 9999) break; # TME sometimes sends 999.9 when it is right in the middle of an update;
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sleep(1); # Give the TME some time to reset
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}
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if ($sensor['sensor_divisor']) { $sensor_value = $sensor_value / $sensor['sensor_divisor']; }
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if ($sensor['sensor_multiplier']) { $sensor_value = $sensor_value * $sensor['sensor_multiplier']; }
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$old_rrd_file = $config['rrd_dir'] . "/" . $device['hostname'] . "/$class-" . safename($sensor['sensor_type']."-".$sensor['sensor_index']) . ".rrd";
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$rrd_file = get_sensor_rrd($device, $sensor);
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if (is_file($old_rrd_file)) { rename($old_rrd_file, $rrd_file); }
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if (!is_file($rrd_file))
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{
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rrdtool_create($rrd_file,"--step 300 \
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DS:sensor:GAUGE:600:-273:1000 \
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RRA:AVERAGE:0.5:1:600 \
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RRA:AVERAGE:0.5:6:700 \
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RRA:AVERAGE:0.5:24:775 \
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RRA:AVERAGE:0.5:288:797 \
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RRA:MAX:0.5:1:600 \
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RRA:MAX:0.5:6:700 \
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RRA:MAX:0.5:24:775 \
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RRA:MAX:0.5:288:797\
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RRA:MIN:0.5:1:600 \
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RRA:MIN:0.5:6:700 \
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RRA:MIN:0.5:24:775 \
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RRA:MIN:0.5:288:797");
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}
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echo("$sensor_value $unit\n");
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rrdtool_update($rrd_file,"N:$sensor_value");
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if ($sensor['sensor_limit_low'] != "" && $sensor['sensor_current'] < $sensor['sensor_limit'] && $sensor_value >= $sensor['sensor_limit'])
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{
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$msg = "Temp Alarm: " . $device['hostname'] . " " . $sensor['sensor_descr'] . " is " . $sensor_value . " (Limit " . $sensor['sensor_limit'];
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$msg .= ") at " . date($config['timestamp_format']);
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notify($device, "Temp Alarm: " . $device['hostname'] . " " . $sensor['sensor_descr'], $msg);
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echo("Alerting for " . $device['hostname'] . " " . $sensor['sensor_descr'] . "\n");
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log_event('Temperature ' . $sensor['sensor_descr'] . " over threshold: " . $sensor_value . " " . html_entity_decode('°') . "$unit (>= " . $sensor['sensor_limit'] . " " . html_entity_decode('°') . "$unit)", $device, $class, $sensor['sensor_id']);
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}
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mysql_query("UPDATE sensors SET sensor_current = '$sensor_value' WHERE sensor_class='$class' AND sensor_id = '" . $sensor['sensor_id'] . "'");
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}
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?>
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