postgres streaming replication for HA

Hi,

I am forming 2 node cluster of streaming replication for HA. I could able to succeed with the replication process.
But I am not able to complete the "switchover".

Version : postgresql-9.6
OS :RHEL7

Master Node Parameters:

wal_level = hot_standby

synchronous_commit = local

archive_mode = on

archive_command = 'cp %p /var/lib/pgsql/9.6/data/archive/%f'

max_wal_senders = 2

wal_keep_segments = 10

synchronous_standby_names = 'UWPGRECLUS2'

pb_hba.conf

# Localhost

host replication replica 127.0.0.1/32 md5

# PostgreSQL Master IP address

host replication replica 10.0.3.4/32 md5

# PostgreSQL SLave IP address

host replication replica 10.0.3.5/32 md5

Slave Node Parameters:

wal_level = hot_standby

synchronous_commit = local

max_wal_senders = 2

wal_keep_segments = 10

synchronous_standby_names = 'UWPGRECLUS2'

hot_standby = on

Replication is properly happening from master to slave. But I am not able to switchover between the nodes.

Can anyone please guide me in this regard?

Thanks & Regards,
Sunil N Shinde
Assistant Manager - DBA
Mastek Ltd | Mastek Millennium Center, Millennium Business Park, Mahape, Navi Mumbai-400710 .
Mob:- 9819002393