Storage data and graphs empty for file server

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1

About two months ago, the storage information in LibreNMS for our file server started to show blank spots in the graphs. It progressed to the point where most of the data regarding storage on this server was missing and the graphs were blank.

I read over the following post and tried deleting the server from LibreNMS and re-adding it but it still does not properly detect the storage information anymore.

Unfortunately, I did not take a screenshot of the previous months graphs and have already deleted and re-added the server.

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Component Version
LibreNMS 1.32-45-g1318e58
DB Schema 210
PHP 7.0.22-0ubuntu0.16.04.1
MySQL 10.0.31-MariaDB-0ubuntu0.16.04.2
RRDTool 1.5.5
SNMP NET-SNMP 5.7.3
====================================

[OK] Database connection successful
[OK] Database schema correct
[WARN] Your install is over 24 hours out of date, last update: Sun, 15 Oct 2017 20:06:11 +0000
[WARN] Some devices have not been polled in the last 5 minutes.
You may have performance issues. Check your poll log and see: Performance - LibreNMS Docs

Iā€™ve been working on the performance documents but it seems to have made little difference.

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image1193Ɨ1299 105 KB

Ran ./daily.sh and sudo ./validate.php again:

Component Version
LibreNMS 1.32-47-gcdf31c4
DB Schema 211
PHP 7.0.22-0ubuntu0.16.04.1
MySQL 10.0.31-MariaDB-0ubuntu0.16.04.2
RRDTool 1.5.5
SNMP NET-SNMP 5.7.3
====================================

[OK] Database connection successful
[OK] Database schema correct
You have new mail in /var/mail/librenms

Any ideas on where to start looking into this issue? Thanks.

2

What device is this? Also what os?

3

Where you able to get RRD caching working?

4

I thought I had but I went back and missed a couple of lines that needed to be uncommented. I took care of that and restarted rrdcached. Weā€™ll wait and see if it has an effect.

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5

It is our main file server VM with an OS of Windows Server 2012 R2

6

The fact the log is showing this device as going up and down so often wonā€™t help, Iā€™d fix that first.

Itā€™s most likely snmp underperforming so either bump the retry / timeout values up or start disabling polling modules you donā€™t need.

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7

I just tried turning off a bunch or modules that are likely not needed. Will wait and see how it pans out.

8

Iā€™m not sure if it is related at all but in looking at the change log for this system, it appears that it may have started about the same time that Veeam Agent was installed on the server. Does anyone know if the agent for some reason takes over listening for snmp? Grasping at straws :wink:

9

sometimes I can snmpwalk to system and then sometimes I get a Timeout: No Response from FS01:161

I also tried changing the port that the file server listened on to 1161 and then changed it in LibreNMS but it was the same result.

Still waiting to see how it acts after shutting off a number of the modules.

10

yeah seems like the SNMP on that box is having performance issuesā€¦ I have seen that on a few of my windows 2012 server machines.

Windows is not known for good support with SNMP.

11

I am attempting to uninstall the snmp feature and will reinstall it. Unfortunately, uninstalling it requires a reboot so that will have to wait.

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12

Check thisā€¦ It just got pushed to master, so you just need to run daily updates.

@Randy_Sharp

13

Thanks, Kevin. I just checked it out and it looks like it was pulled down 2 days ago to our system and the graphs have been working since then. Great work!

1 Like
14

randy,

donā€™t thank me, thank the contributors to coding. :slight_smile: those guys/gals are heroes in my book.

1 Like
15

Agreed, Iā€™ll have to go leave them a message on github

1 Like