我的是HA hbase第三台虚拟机的HRegionServer没有起来，如果配置正确的话，那一定就是虚拟机找错位置了
所以报错 2021-01-06 18:01:34,576 ERROR [main] regionserver.HRegionServerCommandLine: Region server exiting
java.lang.RuntimeException: Failed construction of Regionserver: class org.apache.hadoop.hbase.regionserver.HRegionServer

解决：所以我们三台都建立软连接

把Hadoop的core-site.xml和hdfs-site.xml给到hbase的conf目录

ln -s /export/servers/hadoop-2.6.0-cdh5.14.0/etc/hadoop/core-site.xml /export/servers/hbase-1.2.0-cdh5.14.0/conf/core-site.xml

ln -s /export/servers/hadoop-2.6.0-cdh5.14.0/etc/hadoop/hdfs-site.xml /export/servers/hbase-1.2.0-cdh5.14.0/conf/hdfs-site.xml

然后重新开启start -hbase 试试看

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HA Failed construction of Regionserver: class org.apache.hadoop.hbase.regionserv