Sphinxql INSERT fails as I restart searchd service

I'm running sphinx on server A with configuration for RT-INDEXING as below:

index orders_rt
{
    type            = rt
    path            = /usr/local/sphinx/var/data/orders_rt
    rt_mem_limit        = 1024M
    rt_field        = item_name
    rt_attr_bigint      = order_id
}

From another server B regular INSERT are made in-order to achieve real-time indexing. I make
db connection using anydb-sql with dbconfig as below:

{ 
    url: 'mysql://x.x.x.x:9306', 
    connections: { min: 30, max: 60 }
};

Now, If I restart searchd on server-A or simply restart server-A, I see the INSERTS fails after 1 or 2 restart. From Sphinxql SHOW STATUS I see the connections are reduced every time I restart searchd.

Can anyone help me here. Please comment If I am not clear enough with the problem.

Using sphinx-2.1.9, node-v0.10.31, mysql 5.6.19