Reg container getting killed without throwing exceptions

[Kottapalli, Venkatesh]

Hi,

                I get the following message when the container is getting 
killed. I don't find logs for any exceptions being thrown. How do we identify 
the root cause for this issue?
Sorry for being very abstract.

Container killed by the ApplicationMaster.
Container killed on request. Exit code is 143
Container exited with a non-zero exit code 143

Regards,
Venkatesh.