Add failure event handler for supervisor process

tools/scripts/failure-event-handler

@@ -0,0 +1,24 @@
+#!/usr/bin/env python
+import sys
+import os
+
+def write_stdout(s):
+    sys.stdout.write(s)
+    sys.stdout.flush()
+
+def write_stderr(s):
+    sys.stderr.write(s)
+    sys.stderr.flush()
+
+def main():
+    while 1:
+        write_stdout('READY\n')
+        line = sys.stdin.readline()
+        headers = dict([ x.split(':') for x in line.split() ])
+        headers.update(dict([ x.split(':') for x in sys.stdin.read(int(headers['len'])).split()]))
+        if headers['eventname'] == 'PROCESS_STATE_FATAL':
+            os.kill(os.getppid(), signal.SIGTERM)
+        write_stdout('RESULT 2\nOK')
+
+if __name__ == "__main__":
+    main()