Need your help to troubleshoot an Aerospike restore issue

I am new to Aerospike and need your help to troubleshoot a restore issue. I have Aerospike running on my mac and it seem to work all fine except that it do not allow me to restore from .asb file. I took backup from an aerospike instance running on an Ubuntu machine using asbackup utility. But when I try to restore the .asb file using asrestore command on my mac instance, it throws following exception:

asrestore -d ~
restoring: host 127.0.0.1 port 3000 bin_list (null) from directory /home/vagrant
2015-08-25 15:13:43 INFO Add node BB9A9EAAB270008 127.0.0.1:3000
Aug 25 2015 15:13:43 GMT: starting restore: filename: /home/vagrant/BB9A3F5AA1ED512_00000.asb FILE 0x7f63680008c0
put failed in restore: unusual error 20 trying again
put failed in restore: unusual error 20 trying again
put failed in restore: unusual error 20 trying again
put failed in restore: unusual error 20 trying again
put failed in restore: unusual error 20 trying again
put failed in restore: unusual error 20 trying again
put failed in restore: unusual error 20 trying again
put failed in restore: unusual error 20 trying again
put failed in restore: unusual error 20 trying again
put failed in restore: unusual error 20 trying again
put failed in restore: unusual error 20 trying again
put failed in restore: unusual error 20 trying again
restore: too many consecutive put failure
Aug 25 2015 15:13:44 GMT: expired 0 : skipped 0 : attempted 0 : [updated 0 not-updated (existed 0 gen-old 0)]

I tried using -t option to restrict the thread count, but no respite.

Has any one faced a similar issue?

Looking forward to your help.

Hi Prakash, The namespace from which you took the backup is not there to which you are trying to restore. Check the namespace name in backup file and namespace name in the restoring cluster.