Save the old HBase configuration and add symlink from /etc/hbase/conf:
mv /etc/hbase/conf /etc/hbase/conf.saved
ln -s /usr/hdp/current/hbase-client/conf /etc/hbase/conf
ls -la /etc/hbase
total 4 drwxr-xr-x 3 root root 4096 Jun 19 21:51 2.3.0.0-2323 lrwxrwxrwx 1 root root 35 Jun 19 21:54 conf -> /usr/hdp/current/hbase-client/conf drwxr-xr-x 2 root root 4096 Jun 14 00:11 conf.saved
From Ambari Web, browse to
Services
>HBase
.Start HBase by selecting
Service Actions > Start
.After HBase has started, select Run Service Check from the Service Actions menu. Confirm the Service Check passes.