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MapReduce, mail # user - questions about Registered UNIX signal handlers for [TERM, HUP, INT]


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questions about Registered UNIX signal handlers for [TERM, HUP, INT]
YouPeng Yang 2013-11-15, 03:44
Hi  again

  At the tips of my namenode(hadoop-2.2.0) log,it is :
  13/11/15 10:03:38 INFO namenode.NameNode: registered UNIX signal handlers
for [TERM, HUP, INT]

  Does it means whether I can send the UNIX signal (such as TERM, HUP, INT
) to through the terminal.
  What  reflection will the namenode response for  these  UNIX signal (such
as TERM, HUP, INT ).