[sheepdog] wastes too much time in event loop

[王力锋]

Hi, All


         I create a 10 nodes' sheepdog cluster with zookeeper driver. My NIC and switch are all 10G, but the sheepdog log always warns "wastes too much time in event loop".
         Is it critical and what causes it?
      


         Please see the logs as follows:
Jul 23 15:18:03   WARN [main] event_handler_exit(44) zk_event_handler wastes too much time in event loop: 8284.683 us
Jul 23 15:18:03   WARN [main] event_handler_exit(44) zk_event_handler wastes too much time in event loop: 8216.925 us
Jul 23 15:18:03   WARN [main] event_handler_exit(44) zk_event_handler wastes too much time in event loop: 11731.176 us
Jul 23 15:18:03   WARN [main] event_handler_exit(44) zk_event_handler wastes too much time in event loop: 8032.123 us
Jul 23 15:18:03   WARN [main] event_handler_exit(44) zk_event_handler wastes too much time in event loop: 8357.292 us
Jul 23 15:18:03   WARN [main] event_handler_exit(44) zk_event_handler wastes too much time in event loop: 8348.695 us
Jul 23 15:18:03   WARN [main] event_handler_exit(44) zk_event_handler wastes too much time in event loop: 8333.673 us
Jul 23 15:18:03   WARN [main] event_handler_exit(44) zk_event_handler wastes too much time in event loop: 9003.643 us
Jul 23 15:18:03   WARN [main] event_handler_exit(44) zk_event_handler wastes too much time in event loop: 10418.276 us
Jul 23 15:18:03   WARN [main] event_handler_exit(44) zk_event_handler wastes too much time in event loop: 8237.292 us
Jul 23 15:18:03   WARN [main] event_handler_exit(44) zk_event_handler wastes too much time in event loop: 10125.13  us
Jul 23 15:18:04   WARN [main] event_handler_exit(44) zk_event_handler wastes too much time in event loop: 51052.992 us
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