Nagios Support Forum

here are the most recent errors

# tail -f /var/log/httpd/error_log
[Mon Jul 16 17:02:46.849658 2018] [:error] [pid 39838] [client 10.144.1.77:43912] PHP Notice: unserialize(): Error at offset 355 of 572 bytes in /usr/local/nagiosxi/html/includes/utils-xmlsysstat.inc.php on line 44, referer: http://nagiosxi/nagiosxi/index.php?
[Mon Jul 16 17:02:46.849707 2018] [:error] [pid 39838] [client 10.144.1.77:43912] PHP Warning: Invalid argument supplied for foreach() in /usr/local/nagiosxi/html/includes/utils-xmlsysstat.inc.php on line 88, referer: http://nagiosxi/nagiosxi/index.php?
[Mon Jul 16 17:02:47.410102 2018] [:error] [pid 41678] [client 10.144.1.77:43920] PHP Notice: unserialize(): Error at offset 355 of 572 bytes in /usr/local/nagiosxi/html/includes/utils-xmlsysstat.inc.php on line 44, referer: http://nagiosxi/nagiosxi/index.php?
[Mon Jul 16 17:02:47.410148 2018] [:error] [pid 41678] [client 10.144.1.77:43920] PHP Warning: Invalid argument supplied for foreach() in /usr/local/nagiosxi/html/includes/utils-xmlsysstat.inc.php on line 88, referer: http://nagiosxi/nagiosxi/index.php?
[Mon Jul 16 17:03:05.757740 2018] [:error] [pid 42419] [client 10.144.2.183:10233] PHP Notice: Use of undefined constant Hostgroup - assumed 'Hostgroup' in /usr/local/nagiosxi/html/includes/components/bbmap/bbmap.inc.php on line 193, referer: http://nagiosxi/nagiosxi/dashboards/das ... ?id=Ha3f05
[Mon Jul 16 17:03:05.803746 2018] [:error] [pid 42760] [client 10.144.2.183:10235] PHP Notice: Use of undefined constant Hostgroup - assumed 'Hostgroup' in /usr/local/nagiosxi/html/includes/components/bbmap/bbmap.inc.php on line 193, referer: http://nagiosxi/nagiosxi/dashboards/das ... ?id=Ha3f05
[Mon Jul 16 17:03:06.411491 2018] [:error] [pid 42417] [client 10.144.1.77:43958] PHP Notice: unserialize(): Error at offset 355 of 572 bytes in /usr/local/nagiosxi/html/includes/utils-xmlsysstat.inc.php on line 44, referer: http://nagiosxi/nagiosxi/
[Mon Jul 16 17:03:06.411518 2018] [:error] [pid 42417] [client 10.144.1.77:43958] PHP Warning: Invalid argument supplied for foreach() in /usr/local/nagiosxi/html/includes/utils-xmlsysstat.inc.php on line 88, referer: http://nagiosxi/nagiosxi/
[Mon Jul 16 17:03:06.466786 2018] [:error] [pid 42755] [client 10.144.2.183:10205] PHP Notice: unserialize(): Error at offset 355 of 572 bytes in /usr/local/nagiosxi/html/includes/utils-xmlsysstat.inc.php on line 44, referer: http://nagiosxi/nagiosxi/
[Mon Jul 16 17:03:06.466824 2018] [:error] [pid 42755] [client 10.144.2.183:10205] PHP Warning: Invalid argument supplied for foreach() in /usr/local/nagiosxi/html/includes/utils-xmlsysstat.inc.php on line 88, referer: http://nagiosxi/nagiosxi/

What language are you using on the system/in the XI interface?

We may need to wipe some of the sysstat data from the DB and let it re-populate.

If we referring to interface language, then it is English.

Can you run this against the Nagios XI database? This will clear out the sysstat values being returned. It seems like PHP is having a hard time reading the data that is in the DB.
Please also run the following so we can see what the collation is:

We ran the first command to clear the sysstat values.


And below is the output for mysql -u root -pnagiosxi -e "SHOW FULL COLUMNS FROM nagiosxi.xi_sysstat;"
+-------------+--------------+-------------------+------+-----+-------------------+-----------------------------+---------------------------------+---------+
| Field | Type | Collation | Null | Key | Default | Extra | Privileges | Comment |
+-------------+--------------+-------------------+------+-----+-------------------+-----------------------------+---------------------------------+---------+
| sysstat_id | int(11) | NULL | NO | PRI | NULL | auto_increment | select,insert,update,references | |
| metric | varchar(128) | latin1_swedish_ci | NO | MUL | NULL | | select,insert,update,references | |
| value | text | latin1_swedish_ci | YES | | NULL | | select,insert,update,references | |
| update_time | timestamp | NULL | NO | | CURRENT_TIMESTAMP | on update CURRENT_TIMESTAMP | select,insert,update,references | |
+-------------+--------------+-------------------+------+-----+-------------------+-----------------------------+---------------------------------+---------+

That should be normal, we can try using mb_unserialize instead of unserialize in the line that we are getting an error from.

Open up /usr/local/nagiosxi/html/includes/utils-xmlsysstat.inc.php and find line 44, replace: with the following: This should make the status icons work in your interface.

After changing the file utils-xmlsysstat.inc.php, the status is showing fine.

But there are 2 diff things that we have observed after upgrade, if its php.
I m not sure if this is related we are having 2 other error with php

1) On Nagvis we are having below error.

Error: (0) Undefined property: CorePDOHandler::$data
URL: /nagvis/server/core/ajax_handler.php?mod=Map&act=getObjectStates&show=RDG-Enviroment&ty=state&header_menu=1&hover_menu=1&context_menu=1&zoom=100&f[]=maincfg,maincfg,1531404862&f[]=map,RDG-Enviroment,1531404888&_ajaxid=1531935925
File: /usr/local/nagvis/share/server/core/classes/CorePDOHandler.php
Line: 306
#0 /usr/local/nagvis/share/server/core/classes/CorePDOHandler.php(306): nagvisExceptionErrorHandler(8, 'Undefined prope...', '/usr/local/nagv...', 306, Array)
#1 /usr/local/nagvis/share/server/core/classes/CorePDOHandler.php(332): CorePDOHandler->prep('SELECT? ...')
#2 /usr/local/nagvis/share/server/core/classes/GlobalBackendPDO.php(485): CorePDOHandler->query('SELECT? ...', Array)
#3 /usr/local/nagvis/share/server/core/classes/CoreBackendMgmt.php(478): GlobalBackendPDO->getHostState(Array, 0, Array)
#4 /usr/local/nagvis/share/server/core/classes/CoreBackendMgmt.php(169): CoreBackendMgmt->fetchStateCounts('nagiosxi', 'hostState', 0, Array)
#5 /usr/local/nagvis/share/server/core/classes/NagVisMap.php(58): CoreBackendMgmt->execute()
#6 /usr/local/nagvis/share/server/core/classes/CoreModMap.php(349): NagVisMap->__construct(Object(GlobalMapCfg), true, true)
#7 /usr/local/nagvis/share/server/core/classes/CoreModMap.php(108): CoreModMap->getObjectStates()
#8 /usr/local/nagvis/share/server/core/functions/index.php(120): CoreModMap->handleAction()
#9 /usr/local/nagvis/share/server/core/ajax_handler.php(59): require('/usr/local/nagv...')
#10 {main}


2) The only php plugin to pull aws ec2 instance status is throwing authentication error, though the authentication are correct.


Please advise.


Thanks!

In NagVis can you still reach the "Need Help" -> Nagvis support Information meny item?

If so what version is listed next to "NagVis Version"?

Yes i can reach the NagVis support information menu.
And the error on NagVis doesn't seems to pop up after that modification in the file.

The status is showing fine as well on nagios.

You can close this case.


Thankyou.

Great, closing this then.