Centos : Load Average :OS Process Name : migration/1, migration/2 , migration/n

Hi All,

We have recently migrated postgres DB to out of of server ( Centos 6.9 ) .
Both Source and Target versions of OS/DB are same . Also Configuration is
Apple-Apple.

But We started seeing lot of process name 'migration' at OS Level in new
server which is triggering Load average most of the time .

Some sample process from top command,

67 root RT 0 0 0 0 R 34.8 0.0 913:06.38
[migration/16]

155 root RT 0 0 0 0 S 32.2 0.0 845:46.53
[migration/38]

35 root RT 0 0 0 0 S 27.6 0.0 927:15.27
[migration/8]

11 root RT 0 0 0 0 S 21.4 0.0 1033:45
[migration/2]

131 root RT 0 0 0 0 S 21.4 0.0 812:00.70
[migration/32]

87 root RT 0 0 0 0 S 20.7 0.0 394:28.32
[migration/21]

Anyone come-across this situation ? Please share your thoughts .

Thanks,
Raju