Hbase Region is Multiply Assigned to Region Servers

After running hbase hbck command from command line, following errors says that  Hbase Region is Multiply Assigned to Region Servers. Status is inconsistent.

Number of Tables: 1
Number of live region servers: 8
Number of dead region servers: 0

........Number of empty REGIONINFO_QUALIFIER rows in .META.: 0

14/03/18 11:56:05 DEBUG client.HConnectionManager$HConnectionImplementation: The connection to hconnection-0x344d0b06aaa0028 has been closed.

ERROR: Region .META.,,1.1028785192 is listed in META on region server hdptest2.test.local:60020 but is multiply assigned to region servers hdptest2.test.local:60020, hdptest2.test.local:60020

ERROR: Region -ROOT-,,0.70236052 is listed in META on region server hdptest3.test.local:60020 but is multiply assigned to region servers hdptest3.test.local:60020, hdptest3.test.local:60020

ERROR: Region ambarismoketest,,1395071340885.7c4d1eb0609daaa87fd3b7a2bb725b44. is listed in META on region server hdptest4.test.local:60020 but is multiply assigned to region servers hdptest4.test.local:60020, hdptest4.test.local:60020

Summary:
-ROOT- is okay.
Number of regions: 1
Deployed on: hdptest3.test.local:60020

.META. is okay.
Number of regions: 1
Deployed on: hdptest2.test.local:60020
ambarismoketest is okay.
Number of regions: 1
Deployed on: hdptest4.test.local:60020
3 inconsistencies detected.
Status: INCONSISTENT

In my case the reason for the above-mentioned errors is coming from contents of /etc/hosts file. In order to configure a hadoop cluster properly, hostnames of all nodes are set correctly. When called "hostname -f" should return fully qualified domain name.

Following two lines should not be removed from /etc/hosts file.
127.0.0.1 localhost.localdomain localhost

::1 localhost6.localdomain6 localhost6

Then set your fully qualified domain name of the server with the following order:

192.168.1.22  hdptest2.test.local  hdptest2