Welcome to OCS Inventory NG community support, where you can ask questions and receive answers from other members of the community.

Please ask questions only in English or French.

Release 2.10.0 available

The official documentation can be found on http://wiki.ocsinventory-ng.org. Read it before asking your question.

Service encounter error Failed to load/parse last inventory state

Hi Frank! I research OCS Invetory 2.1.2, too.I have an agent installed and ran it. In the log file on the client computer the following message:

Service encounter error <Failed to load/parse last inventory state>.

Looking at the documentation! In the root directory of the website I created a directory called ocsinventory, and set chown apache:apache. But the error is also displayed? Tell me please, what should be in this folder and what am I doing wrong?

in OCS Inventory NG agent for Windows by (280 points)

3 Answers

0 votes

You don't need and have to create a directory ocsinventory on your ocs server. You must have apache mod_perl addon installed and enabled. If no, install it and don't forget to restart apache after. /ocsinventory url is for receiving inventories. So you must write http://@ipaddress/ocsinventory into ocsinventory.ini file for windows agent and into ocsinventory-agent.cfg for Unix agent.


by (87.2k points)
0 votes

Hi! Sorry for long delayed! Mod_perl installed, but when the agent runs in the log file is displayed:

Service encounter error <OCS Inventory NG Agent encounter an error (exit code is 4 => Failed to talk with Communication Server)>

On the server side - tail /var/log/apache2/error_log

[Fri Jul 17 17:39:15 2015] [error] [client] File does not exist: /var/www/localhost/htdocs/ocsinventory
[Fri Jul 17 17:39:15 2015] [error] [client] File does not exist: /var/www/localhost/htdocs/ocsinventory

Where can be ERROR?

by (280 points)
0 votes

I am having this exact same issue and can't make heads or tails of it. I've seen multiple threads with this issue but no resolution. I have verified mod_perl is installed and enabled. When I check my ocsinventory.ini file on the windows 2008 R2 server I am testing with I see Server=http://name.domain.com:80/ocsinventory. SSL is set to 1 for some reason. If I set to 0 to turn it off I still see the above mentioned error in event viewer (Service encounter error <Failed to load/parse last inventory state>.) Your suggestion for the .ini file is to set Server=http://@ipaddress/ocsinventory. I done this as well (with or without the @) and still get the same constat error in the Windows Application log for the client machine. I installed this environment by using the downloadable VMware virtual machine you provide. Can you tell what I am doing wrong here?


Also, this is what I see in the agent log file (ocsinventory.txt)

Starting OCS Inventory NG Agent on Wednesday, January 27, 2016 16:21:08.
AGENT => Running OCS Inventory NG Agent Version
AGENT => Using OCS Inventory NG FrameWork Version
AGENT => Loading plug-in(s)
AGENT => Using network connection with Communication Server
AGENT => Using Communication Provider <OCS Inventory NG cURL Communication Provider> Version <>
AGENT => Sending Prolog
ERROR *** AGENT => Failed to send Prolog <HTTP Status Code #400>
AGENT => Unloading communication provider
AGENT => Unloading plug-in(s)
AGENT => Execution duration: 00:00:00.

To verify mod_perl I opened a web browser and navigated to http://ocsinventory-ng.mydomain.com/perl-status and get this:

I should add that I am deploying the agent through Windows GPO. I followed the documentation here:


What am I doing wrong? We used to have a Windows OCS server running version 1.3.2 which worked flawlessly but was running on 2003 which we were forced to retire last summer. I decided to use Linux since it was the preferred method and thought it would be easier to just download the VM instead but it's been a big headache.



by (210 points)
Powered by Question2Answer