Q) In which condition we will escalate the issue to higher team or L3?

Ans –

-> When we will want any code fix.

-> When we will not able to resolve it and with the error details and with our analysis details i.e. RCA mentioned in a ticket and assign to a higher team.

Q) What will you do when your file system reaches it maximum value?

Ans – Steps to proceed: -

-          We have an alert configuration (i.e. we will receive an alert email in our outlook) if our file system reaches more than 85%.

-          Then we need to run some command to check whether it actually reaches or not to verify it is actual alert or any false alarm.

$ df <File System name with path>

-          After verification if file system reaches more than 85%, then we will delete some old logs if it is no more use or try to zip some log files for future use and if it is not sufficient, then we will raise a ticket to Unix Admin for clean up the file system.

Q) What will you do when any process CPU Utilization reaches 90% or you need to run a process in priority?

Ans - Steps to proceed: -

-          We have an alert set up (i.e. we will receive an alert email in our outlook), if any process takes CPU Utilization 90%.

-          We need to verify the process with its CPU utilization with the help of top command.

$ top

-          First we will need to check if the process is related to our application or not.

-          If it is not related to our application, then we will go ahead and close it.

$ ps –ef | grep <Process Name>

$ kill -9 <PID>

-          If the process is related to our application before killing, we need to get confirmation from end user.

-          Then we need to renice our desire process to run at priority.

$ renice -<-20 to 19> <PID>

Q) What will we do if our application is running out of memory?

Ans – Steps to proceed: -

-          We have an alert set up (i.e. we will receive an alert email in our outlook), if any application is running out of memory.

-          First we need to check our availability memory by help of Top command.

-          If the particular process running for the application is taking more memory, then we will ask our Development team for analysis and if require we will increase the memory size by help of our DBA Team.

If memory size is changed, then the application will need for restart.