Cisco Headend System Release 2.7 Technical References

 

 

Operations Alert Bulletin 
Stopping and Starting the DNCS 
Processes Correctly 

Engineers from Cisco® Services are aware of several instances where system 

operators of the Digital Broadband Delivery System (DBDS) have attempted to 

stop or restart a system process through the command line of the Digital Network 

Control System (DNCS). Our engineers urge system operators to avoid stopping 

or restarting system processes in this manner. A restart of a system process from 

the command line may result in multiple instances of a single process to be 

running at the same time. Furthermore, system operators who stop or restart a 

process from the command line of the DNCS bypass the safeguards that have 

been engineered into the DNCS. 
Refer to Recommendation (on page 2) for the two valid options system operators 

should use to stop or start a system process. 

Engineers from Cisco Services wish to remind system operators that stopping and 

restarting a system process is an acceptable workaround to some minor 

conditions that may affect the DBDS from time to time, provided the processes are 

stopped and restarted properly. However, system operators should be aware that 

a regular need to stop and restart a system process may mask a deeper, 

underlying issue. 
If system operators discover that they need to stop and restart a process with 

regularity, they should save the appropriate log files, open a case with Cisco 

Services, and then send the log files to our engineers for analysis. System 

operators should contact Cisco Services for assistance in identifying which log 

files to save.