hbase出现错误：
2021-10-24 18:55:25,514 WARN [RSProcedureDispatcher-pool3-t914] procedure.RSProcedureDispatcher: request to server node2.jacky.com,16020,1635064460828 failed due to org.apache.hadoop.hbase.ipc.FailedServerException: Call to node2.jacky.com/192.168.1.251:16020 failed on local exception: org.apache.hadoop.hbase.ipc.FailedServerException: This server is in the failed servers list: node2.jacky.com/192.168.1.251:16020, try=78546, retrying...
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解决方法：关闭hadoop安全模式
#/usr/local/hadoop-2.8.5/bin/hdfs dfsadmin -safemode leave
#/usr/local/hadoop-2.8.5/bin/hdfs dfsadmin -safemode get
然后停止hbase、hadoop、zookeeper服务
依次启动zookeeper、hadoop、hbase服务
解决了。