Replication for selected namespaces and set

Operations XDR (Cross Data Center Replication)
1

Hi,

Suppose I have 3 datacenters : dc1, dc2, dc3.

Namespaces in dc1 : ns1, ns2
Namespaces in dc2 : ns1, ns2, ns3
Namespaces in dc3 : ns3

Now , I want data in :

[dc1:ns1] to be replicated to [dc2:ns1] but not dc3
[dc2:ns2] replicated to [dc1:ns2] nut not [dc3]
and data in [dc2:ns3] to be replicated to [dc3] but not [dc1]

How do i configure this type cluster/namespace ?

2

Hi Holmes,

The following example configuration would get this done:

DC1

xdr {
  enable-xdr true
  namedpipe-path /tmp/xdr_pipe
  digestlog-path /opt/aerospike/data/digestlog 100G
  errorlog-path /var/log/aerospike/asxdr.log
  local-node-port 3000
  info-port 3004
  datacenter dc2 {
  dc-node-address-port IP-ADDRESS PORT
  }
}

namespace ns1 {
        enable-xdr true
        replication-factor 2
        memory-size 4G
        default-ttl 30d

        storage-engine memory
        xdr-remote-datacenter dc2
}

namespace ns2 {
        replication-factor 2
        memory-size 4G
        default-ttl 30d

        storage-engine memory
}

DC2

xdr {
  enable-xdr true
  namedpipe-path /tmp/xdr_pipe
  digestlog-path /opt/aerospike/data/digestlog 100G
  errorlog-path /var/log/aerospike/asxdr.log
  local-node-port 3000
  info-port 3004
  datacenter dc1 {
    dc-node-address-port IP-ADDRESS PORT
  }
  datacenter dc3 {
    dc-node-address-port IP-ADDRESS PORT
  }
}

namespace ns1 {
        replication-factor 2
        memory-size 4G
        default-ttl 30d

        storage-engine memory
}

namespace ns2 {
        enable-xdr true
        replication-factor 2
        memory-size 4G
        default-ttl 30d

        storage-engine memory
        xdr-remote-datacenter dc1
}

namespace ns3 {
        enable-xdr true
        replication-factor 2
        memory-size 4G
        default-ttl 30d

        storage-engine memory
        xdr-remote-datacenter dc3
}

DC3

namespace ns3 {
        replication-factor 2
        memory-size 4G
        default-ttl 30d

        storage-engine memory
}

Hope that helps.

Petter

3

Thanks Petter, +1. Its definitely helpful.

Regards, Holmes