HBase长时间无法关闭问题及处理(Waiting on regionserver(s) to go down)

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HBase长时间无法关闭［Waiting on regionserver(s) to go down］

为了释放已经删除的region，重启hbase，执行./bin/stop-hbase.sh。

等了很久还未关闭，查看master日志，显示一直在等待regionserver

2015-07-08 09:11:25,800 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s) to go down Colander-hb01,60020,1435801056660

再去查看此regionserver情况，日志显示Region is not online

2015-07-08 09:17:34,419 DEBUG org.apache.hadoop.hbase.regionserver.HRegionServer: NotServingRegionException; Region is not online: COLANDER_DownloadedURL,com.soku.www:http/t/nisearch/Camino+sangriento+6/_cid_15_time_100_sort_score_display_album_high_24?sfilter=1,1417099858158.e9e95f20d0f45860aa0778a5b6e97dbc.

陷入了死循环的情况，永远也无法完成关闭。

尝试手动强制关闭regionserver，成功了

./bin/hbase-daemons.sh stop regionserver

随即，hbase成功关闭。

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