Partitioned Pollers Stack Trace

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fwrite(): Argument #1 ($stream) must be of type resource, null given in /opt/observium/includes/rrdtool.inc.php:329

Stack trace:

#0: (unknown function) called at [/opt/observium/includes/rrdtool.inc.php:329]

324: logfile('rrd.log', "RRD " . $exec_status['stderr'] . ", CMD: $cmd");

325: }

326: } else {

327: // FIXME, need add check if pipes exist

328: $start = microtime(TRUE);

329: fwrite($rrd_pipes[0], $cmd . "\n");

330: // FIXME, complete not sure why sleep required here.. @mike

331: usleep(1000);

332:

333: $stdout  = trim(stream_get_contents($rrd_pipes[1]));

334: $stderr  = trim(stream_get_contents($rrd_pipes[2]));

#1: fwrite called at [/opt/observium/includes/rrdtool.inc.php:329]

324: logfile('rrd.log', "RRD " . $exec_status['stderr'] . ", CMD: $cmd");

325: }

326: } else {

327: // FIXME, need add check if pipes exist

328: $start = microtime(TRUE);

329: fwrite($rrd_pipes[0], $cmd . "\n");

330: // FIXME, complete not sure why sleep required here.. @mike

331: usleep(1000);

332:

333: $stdout  = trim(stream_get_contents($rrd_pipes[1]));

334: $stderr  = trim(stream_get_contents($rrd_pipes[2]));

#2: rrdtool called at [/opt/observium/includes/rrdtool.inc.php:552]

547: $step = $options['step'] ?? $config['rrd']['step'];

548:

549: // Create DS parameter based on the definition

550: $ds = rrdtool_def_ds('create', $definition, $index, $options);

551:

552: return rrdtool('create', $fsfilename, implode(' ', $ds) . " --step $step $rra");

553:

554: }

555:

556: /**

557: * Updates an rrd database at $filename using $options

#3: rrdtool_create_ng called at [/opt/observium/includes/rrdtool.inc.php:596]

591:

592: $fsfilename = get_rrd_path($device, $filename);

593:

594: // Create the file if missing (if we have permission to create it)

595: if ($create) {

596: rrdtool_create_ng($device, $type, $index, $options);

597: }

598: // Update DSes when requested

599: if (isset($options['update_max']) || isset($options['update_min'])) {

600: print_debug_vars($options);

601: rrdtool_update_ds($device, $type, $index, $options);

#4: rrdtool_update_ng called at [/opt/observium/includes/polling/functions.inc.php:211]

206: log_event('Device status changed to Down (' . $device['status_type'] . ' -> ' . $status_type . ')', $device, 'device', $device['device_id'], 3);

207: }

208: $device['status_type'] = $status_type;

209: }

210:

211: rrdtool_update_ng($device, 'status', ['status' => $status]);

212: //print_vars(rrdtool_export_ng($device, 'status'));

213:

214: if (!$attribs['ping_skip']) {

215: // Ping response RRD database.

216: rrdtool_update_ng($device, 'ping', ['ping' => ($device['status_pingable'] ?: 'U')]);

#5: poll_device called at [/opt/observium/poller.php:189]

184: $params[] = $config['poller_id'];

185: }

186:

187: foreach (dbFetchColumn($query, $params) as $device_id) {

188: $device = dbFetchRow("SELECT * FROM `devices` WHERE `device_id` = ?", [ $device_id ]);

189: poll_device($device, $options);

190: $polled_devices++;

191: }

192:

193: $poller_time = elapsed_time($poller_start, 4);

194: