Change default ports; move them out of linux ephemeral port range

After 0.98 hbase's default ports have changed to be outside of the ephemeral port range:. hbase.master.port : 60000 -> 16000 hbase.master.info.port (http): 60010 -> 16010 hbase.regionserver.port : 60020 -> 16020 hbase.regionserver.info.port (http): 60030 -> 16030 hbase.status.multicast.port : 60100 -> 16100 To set the old defaults you can add this to your hbase-site.xml:  <property >     <name>hbase.master.port</name>     <value>60000</value>   </property>   <property>     <name>hbase.master.info.port</name>     <value>60010</value>   </property>   <property>     <name>hbase.regionserver.port</name>     <value>60020</value>   </property>   <property>     <name>hbase.regionserver.info.port</name>     <value>60030</value>   </property>    HBase up to and including 0.98.x chose default tcp ports in the 600xx port range which conflicts with the standard unix/linux ephmeral port range of 49152-65535 or 32768-61000. This meant if any other processes chose to bind to a os specified port it could bind to the ports that hbase had as default. If hbase processes were restarted some hbase nodes would fail to start. The probability of this happening increases as the number of nodes in the cluster increases.