"Can't open display"; stuck at screen cmd

Question

When i run a debug;

[root@ ocsinventory]# ocsinventory-agent --debug --server http://xx.xx.xx

Can't open display

The program/log file seems locked at the screen command;

[Tue Jul 30 09:13:27 2019][debug]  - Sys::Hostname loaded

[Tue Jul 30 09:13:27 2019][debug] Running Ocsinventory::Agent::Backend::OS::Generic::Lspci

[Tue Jul 30 09:13:27 2019][debug] Running Ocsinventory::Agent::Backend::OS::Generic::Lspci::Controllers

[Tue Jul 30 09:13:27 2019][debug] Running Ocsinventory::Agent::Backend::OS::Generic::Lspci::Modems

[Tue Jul 30 09:13:27 2019][debug] Running Ocsinventory::Agent::Backend::OS::Generic::Lspci::Sounds

[Tue Jul 30 09:13:27 2019][debug] Running Ocsinventory::Agent::Backend::OS::Generic::Lspci::Videos

[Tue Jul 30 09:13:27 2019][debug]  - xrandr found

[Tue Jul 30 09:13:27 2019][debug] Running Ocsinventory::Agent::Backend::OS::Generic::Lsusb

[Tue Jul 30 09:13:27 2019][debug] Running Ocsinventory::Agent::Backend::OS::Generic::Lsusb::Usb

[Tue Jul 30 09:13:27 2019][debug] Running Ocsinventory::Agent::Backend::OS::Generic::Packaging

[Tue Jul 30 09:13:27 2019][debug] Running Ocsinventory::Agent::Backend::OS::Generic::Packaging::ByHand

[Tue Jul 30 09:13:27 2019][debug] Running Ocsinventory::Agent::Backend::OS::Generic::Packaging::RPM

[Tue Jul 30 09:13:28 2019][debug] Running Ocsinventory::Agent::Backend::OS::Generic::Screen

so it just sits there. the system is oracle linux 6.x , I was running the agent from a crontab but was getting this error each morning from my cron daemon:

error: Failed to reconnect to the hypervisor

error: no valid connection

error: Failed to connect socket to '/var/run/libvirt/libvirt-sock': No such file or directory

Anyone know how to resolve this? this is a Linux server on a Proliant DL 380; I uninstalled and tried the 2.4 agent via rpm, same problem so i just tried the 2.3, same prob

Answer 1

Eventually after about 5 minutes, screen gets killed and it continues and works;

command line:

[root@ ocsinventory]# ocsinventory-agent --debug --server http://xx.xx

Can't open display

File descriptor 5 (pipe:[114071540]) leaked on pvs invocation. Parent PID 27968: /usr/bin/perl

File descriptor 5 (pipe:[114071540]) leaked on vgs invocation. Parent PID 27968: /usr/bin/perl

File descriptor 5 (pipe:[114071540]) leaked on lvs invocation. Parent PID 27968: /usr/bin/perl

error: Failed to reconnect to the hypervisor

error: no valid connection

error: Failed to connect socket to '/var/run/libvirt/libvirt-sock': No such file or directory

[root@ ocsinventory]#

log file:

[Tue Jul 30 09:23:28 2019][debug] Ocsinventory::Agent::Backend::OS::Generic::Screen killed by a timeout.

[Tue Jul 30 09:23:28 2019][debug] Running Ocsinventory::Agent::Backend::OS::Generic::Users

[Tue Jul 30 09:23:28 2019][debug] Running Ocsinventory::Agent::Backend::OS::Linux

[Tue Jul 30 09:23:28 2019][debug] Running Ocsinventory::Agent::Backend::OS::Linux::Archs::i386

[Tue Jul 30 09:23:28 2019][debug] Running Ocsinventory::Agent::Backend::OS::Linux::Archs::i386::CPU

[Tue Jul 30 09:23:28 2019][debug] Running Ocsinventory::Agent::Backend::OS::Linux::Distro::LSB

[Tue Jul 30 09:23:28 2019][debug] Running Ocsinventory::Agent::Backend::OS::Linux::Drives

[Tue Jul 30 09:23:28 2019][debug]  - lshal found

(continues and collects the system info)