Waiting for region servers count to settle

2018-04-24 19:15:09,579 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 10730 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:11,096 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 12247 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:12,613 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 13763 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:14,130 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 15281 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:15,657 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 16808 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:17,183 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 18334 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:18,712 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 19863 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:20,241 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 21392 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:21,770 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 22920 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:23,298 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 24449 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:24,842 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 25993 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:26,375 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 27526 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:27,906 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 29057 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:29,433 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 30584 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:30,960 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 32111 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:32,488 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 33639 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:34,015 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 35166 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:35,545 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 36696 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.
2018-04-24 19:15:37,074 INFO  [master:bigdata01:60000] master.ServerManager: Waiting for region servers count to settle; currently checked in 3, slept for 38225 ms, expecting minimum of 4, maximum of 2147483647, timeout of 4500 ms, interval of 1500 ms.

出现上面的问题重启regionserver就可以解决了.