Installing Linux Diagnostic 3.0 failed by extention in azure

Installing Linux Diagnostic 3.0 failed by extention in azure

Linux is red hat 7.7

here is output error:

2021/09/23 05:28:23 ERROR:CalledProcessError. Error Code is 1
2021/09/23 05:28:23 ERROR:CalledProcessError. Command string was /opt/microsoft/omsagent/bin/service_control restart LAD
2021/09/23 05:28:23 ERROR:CalledProcessError. Command result was
2021/09/23 05:28:23 [Microsoft.Azure.Diagnostics.LinuxDiagnostic-3.0.135] Return 1:
2021/09/23 05:28:23 ERROR:[Microsoft.Azure.Diagnostics.LinuxDiagnostic-3.0.135] Failed to set up mdsd dependencies: setup_omsagent(): Failed at restarting omsagent (fluentd). Exit code=1, Output=control_omsagent(restart) failed. Output:
2021/09/23 05:28:23 [Microsoft.Azure.Diagnostics.LinuxDiagnostic-3.0.135] Enable,error,1,Failed to set up mdsd dependencies: setup_omsagent(): Failed at restarting omsagent (fluentd). Exit code=1, Output=control_omsagent(restart) failed. Output:
2021/09/23 05:28:23 [Microsoft.Azure.Diagnostics.LinuxDiagnostic-3.0.135] Enable,error,-1,Enabled failed

Start with the Linux Diagnostic 3.0 extension enable output on Red Hat 7.7, especially the service_control restart LAD command and the setup_omsagent/control_omsagent failure. Trace why fluentd or omsagent returns exit code 1 during dependency setup. Done means identifying a reproducible cause and confirming that the extension installs and enables successfully.

Written by the indexing model from the issue text.