Understanding NFO Processes

This section provides information on the essential NFO processes you can monitor.

Linux

To monitor NFO processes on Linux, use the ps command with the -eo pid,ppid,comm options.

• NFO server: nfc_svr
• NFO controller: jsvc/tomcat (two tomcat processes)
• EDFN: jsvc/updater (two processes, the first one - service that monitors the second one - EDFN java process)
• HSQLDB - configuration database: java/hsqldb

NFO server (nfc_svr)

Viewing NFO server process:

# ps -eo pid,ppid,comm | grep nfc_svr

NFO Controller (jsvc/tomcat)

There are two tomcat jsvc processes:

• Parent Process: Monitors the Tomcat server process.
• Tomcat Server Process: Handles NFO's web interface and core functionalities.

Viewing Tomcat Processes:

# ps -eo pid,ppid,args | grep jsvc | grep tomcat

Example Output:

22189       1 jsvc.exec -cwd /opt/flowintegrator/tomcat/bin/ ...
22191   22189 jsvc.exec -cwd /opt/flowintegrator/tomcat/bin/ ...

Explanation:

• Process 22189: Parent jsvc process, responsible for monitoring the Tomcat server.
• Process 22191: Tomcat server process, handling NFO's core functionality.

If the Tomcat server process (22191) becomes unresponsive, the parent process (22189) will automatically restart it.

EDFN (jsvc/updater)

There are two EDFN jsvc processes:

• Parent Process: Monitors the EDFN process.
• EDFN Process: Handles EDFN functionalities.

Viewing EDFN Processes:

#ps -eo pid,ppid,args | grep jsvc | grep updater

Example Output:

23664       1 jsvc.exec -cwd /opt/nfi-updater/bin/ ...
23665   23664 jsvc.exec -cwd /opt/nfi-updater/bin/ ...

Explanation:

• Process 23664: Parent jsvc process, responsible for monitoring the EDFN process.
• Process 23665: EDFN process, handling EDFN functionality.

If the EDFN process (23665) becomes unresponsive, the parent process (23664) will automatically restart it.

HSQLDB - configuration database (java/hsqldb)

Viewing HSQLDB Processes:

# ps -eo pid,ppid,args | grep java | grep hsqldb

Windows

On Windows, use the Task Manager to view NFO processes. Look for processes related to NFO, such as java.exe and tomcat9.exe.

Viewing NFO Processes:

>TASKLIST /M VCRUNTIME140.dll

Example Output:

Image Name                     PID Modules
========================= ======== ============================================
nfi-updater.exe               3160 VCRUNTIME140.dll
tomcat9.exe                   3212 VCRUNTIME140.dll
java.exe                      6324 VCRUNTIME140.dll
nfc_svr.exe                   2160 VCRUNTIME140.dll

Explanation:

• Process 2160: NFO server process (nfc_svr.exe).
• Process 3212: NFO controller process (tomcat9.exe).
• Process 3160: EDFN process (nfi-updater.exe).
• Process 6324: HSQLDB process - configuration database (java.exe).