mirror of
https://github.com/librenms/librenms.git
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2dc8b807e9
git-svn-id: http://www.observium.org/svn/observer/trunk@2642 61d68cd4-352d-0410-923a-c4978735b2b8
211 lines
8.5 KiB
PHP
211 lines
8.5 KiB
PHP
<?php
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function poll_sensor($device, $class, $unit)
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{
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global $config;
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foreach (dbFetchRows("SELECT * FROM `sensors` WHERE `sensor_class` = ? AND `device_id` = ? AND `poller_type` = 'snmp'", array($class, $device['device_id'])) as $sensor)
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{
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echo("Checking $class " . $sensor['sensor_descr'] . "... ");
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if ($class == "temperature")
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{
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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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} else {
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$sensor_value = snmp_get($device, $sensor['sensor_oid'], "-OUqnv", "SNMPv2-MIB");
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}
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if ($sensor_value == -32768) { echo("Invalid (-32768) "); $sensor_value = 0; }
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if ($sensor['sensor_divisor']) { $sensor_value = $sensor_value / $sensor['sensor_divisor']; }
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if ($sensor['sensor_multiplier']) { $sensor_value = $sensor_value * $sensor['sensor_multiplier']; }
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$rrd_file = get_sensor_rrd($device, $sensor);
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#$rrd_file = $config['rrd_dir']."/".$device['hostname']."/".safename("sensor-".$sensor['sensor_class']."-".$sensor['sensor_type']."-".$sensor['sensor_index'] . ".rrd");
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## FIXME - sensor name format change 2011/04/26 - remove this in $amount_of_time.
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## We don't want to reduce performance forever because douchebags don't svn up!
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$old_rrd_file = $config['rrd_dir'] . "/" . $device['hostname'] . "/" . safename("$class-" . $sensor['sensor_descr'] . ".rrd");
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$old_rrd_file_b = $config['rrd_dir'] . "/" . $device['hostname'] . "/" . safename("$class-" . $sensor['sensor_index'] . ".rrd");
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if (is_file($old_rrd_file) && is_file($old_rrd_file_b))
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{
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rename($old_rrd_file, $rrd_file);
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unlink($old_rrd_file_b);
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} elseif (is_file($old_rrd_file)) {
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rename($old_rrd_file, $rrd_file);
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} elseif (is_file($old_rrd_file_b)) {
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rename($old_rrd_file_b, $rrd_file);
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}
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if (!is_file($rrd_file))
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{
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rrdtool_create($rrd_file,"--step 300 \
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DS:sensor:GAUGE:600:-20000:20000 \
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RRA:AVERAGE:0.5:1:1200 \
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RRA:AVERAGE:0.5:12:2400 \
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RRA:AVERAGE:0.5:288:1200 \
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RRA:MAX:0.5:12:2400 \
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RRA:MAX:0.5:288:1200 \
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RRA:MIN:0.5:12:2400 \
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RRA:MIN:0.5:288:1200");
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}
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echo("$sensor_value $unit\n");
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rrdtool_update($rrd_file,"N:$sensor_value");
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# FIXME also warn when crossing WARN level!!
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if ($sensor['sensor_limit_low'] != "" && $sensor['sensor_current'] > $sensor['sensor_limit_low'] && $sensor_value <= $sensor['sensor_limit_low'])
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{
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$msg = ucfirst($class) . " Alarm: " . $device['hostname'] . " " . $sensor['sensor_descr'] . " is under threshold: " . $sensor_value . "$unit (< " . $sensor['sensor_limit'];
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$msg .= "$unit) at " . date($config['timestamp_format']);
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notify($device, ucfirst($class) . " Alarm: " . $device['hostname'] . " " . $sensor['sensor_descr'], $msg);
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echo("Alerting for " . $device['hostname'] . " " . $sensor['sensor_descr'] . "\n");
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log_event(ucfirst($class) . ' ' . $sensor['sensor_descr'] . " under threshold: " . $sensor_value . " $unit (< " . $sensor['sensor_limit_low'] . " $unit)", $device, $class, $sensor['sensor_id']);
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}
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else if ($sensor['sensor_limit'] != "" && $sensor['sensor_current'] < $sensor['sensor_limit'] && $sensor_value >= $sensor['sensor_limit'])
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{
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$msg = ucfirst($class) . " Alarm: " . $device['hostname'] . " " . $sensor['sensor_descr'] . " is over threshold: " . $sensor_value . "$unit (> " . $sensor['sensor_limit'];
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$msg .= "$unit) at " . date($config['timestamp_format']);
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notify($device, ucfirst($class) . " Alarm: " . $device['hostname'] . " " . $sensor['sensor_descr'], $msg);
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echo("Alerting for " . $device['hostname'] . " " . $sensor['sensor_descr'] . "\n");
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log_event(ucfirst($class) . ' ' . $sensor['sensor_descr'] . " above threshold: " . $sensor_value . " $unit (> " . $sensor['sensor_limit'] . " $unit)", $device, $class, $sensor['sensor_id']);
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}
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dbUpdate(array('sensor_current' => $sensor_value), 'sensors', '`sensor_class` = ? AND `sensor_id` = ?', array($class, $sensor['sensor_id']));
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}
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}
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function poll_device($device, $options)
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{
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global $config, $device, $polled_devices, $db_stats;
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$attribs = get_dev_attribs($device['device_id']);
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$status = 0; unset($array);
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$device_start = utime(); // Start counting device poll time
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echo($device['hostname'] . " ".$device['device_id']." ".$device['os']." ");
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if ($config['os'][$device['os']]['group'])
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{
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$device['os_group'] = $config['os'][$device['os']]['group'];
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echo("(".$device['os_group'].")");
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}
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echo("\n");
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unset($poll_update); unset($poll_update_query); unset($poll_separator);
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$poll_update_array = array();
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$host_rrd = $config['rrd_dir'] . "/" . $device['hostname'];
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if (!is_dir($host_rrd)) { mkdir($host_rrd); echo("Created directory : $host_rrd\n"); }
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$device['pingable'] = isPingable($device['hostname']);
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if ($device['pingable'])
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{
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$device['snmpable'] = isSNMPable($device);
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if ($device['snmpable'])
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{
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$status = "1";
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} else {
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echo("SNMP Unreachable");
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$status = "0";
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}
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} else {
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echo("Unpingable");
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$status = "0";
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}
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if ($device['status'] != $status)
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{
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$poll_update .= $poll_separator . "`status` = '$status'";
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$poll_separator = ", ";
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dbUpdate(array('status' => $status), 'devices', 'device_id=?', array($device['device_id']));
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dbInsert(array('importance' => '0', 'device_id' => $device['device_id'], 'message' => "Device is " .($status == '1' ? 'up' : 'down')), 'alerts');
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log_event('Device status changed to ' . ($status == '1' ? 'Up' : 'Down'), $device, ($status == '1' ? 'up' : 'down'));
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notify($device, "Device ".($status == '1' ? 'Up' : 'Down').": " . $device['hostname'], "Device ".($status == '1' ? 'up' : 'down').": " . $device['hostname'] . " at " . date($config['timestamp_format']));
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}
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if ($status == "1")
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{
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$graphs = array();
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$oldgraphs = array();
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if ($options['m'])
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{
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if (is_file("includes/polling/".$options['m'].".inc.php"))
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{
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include("includes/polling/".$options['m'].".inc.php");
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}
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} else {
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foreach ($config['poller_modules'] as $module => $module_status)
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{
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if ($attribs['poll_'.$module] || ( $module_status && !isset($attribs['poll_'.$module])))
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{
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include('includes/polling/'.$module.'.inc.php');
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} elseif (isset($attribs['poll_'.$module]) && $attribs['poll_'.$module] == "0") {
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echo("Module [ $module ] disabled on host.\n");
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} else {
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echo("Module [ $module ] disabled globally.\n");
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}
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}
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}
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if (!$options['m'])
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{
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## FIXME EVENTLOGGING -- MAKE IT SO WE DO THIS PER-MODULE?
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### This code cycles through the graphs already known in the database and the ones we've defined as being polled here
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### If there any don't match, they're added/deleted from the database.
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### Ideally we should hold graphs for xx days/weeks/polls so that we don't needlessly hide information.
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foreach (dbFetch("SELECT `graph` FROM `device_graphs` WHERE `device_id` = ?", array($device['device_id'])) as $graph)
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{
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if (!isset($graphs[$graph["graph"]]))
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{
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dbDelete('device_graphs', "`device_id` = ? AND `graph` = ?", array($device['device_id'], $graph["graph"]));
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} else {
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$oldgraphs[$graph["graph"]] = TRUE;
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}
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}
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foreach ($graphs as $graph => $value)
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{
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if (!isset($oldgraphs[$graph]))
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{
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dbInsert(array('device_id' => $device['device_id'], 'graph' => $graph), 'device_graphs');
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}
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}
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}
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$device_end = utime(); $device_run = $device_end - $device_start; $device_time = substr($device_run, 0, 5);
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$update_array['last_polled'] = array('NOW()');
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$update_array['last_polled_timetaken'] = $device_time;
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#echo("$device_end - $device_start; $device_time $device_run");
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echo("Polled in $device_time seconds\n");
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if ($debug) { echo("Updating " . $device['hostname'] . " - ".print_r($update_array)." \n"); }
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$updated = dbUpdate($update_array, 'devices', '`device_id` = ?', array($device['device_id']));
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if ($updated) { echo("UPDATED!\n"); }
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unset($storage_cache); // Clear cache of hrStorage ** MAYBE FIXME? **
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unset($cache); // Clear cache (unify all things here?)
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}
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$polled_devices++;
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}
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?>
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