Install the wikimedia mcrouter package and set it up to broadcast DELETE/SET for WANObjectCache.
Make sure the planned routing rules make sense:
```
{
"pools": {
"eqiad-cluster-1mediawiki": {
"servers": [ "10.68.23.25:11211", "10.68.23.49:11211" ] // memc04, memc05
}"10.68.23.25:11211",
"eqiad-cluster-2": {"10.68.23.49:11211"
]
"servers": [ "10.68.22.239:11211", "10.68.22.239:11211" ] // memc06, memc07},
"codfw-mediawiki": {
"servers": [
"10.68.22.239:11211",
"10.68.17.171:11211"
]
}
},
"routes":
[
{
"aliases": [ "/eqiad/mw/" ],
"route": "PoolRoute|eqiad-mediawiki"
},
{
"aliases": [ "/eqiad/mw-wan/" ],
"route": {
"type": "OperationSelectorRoute",
"default_policy": "PoolRoute|eqiad-cluster-1"mediawiki",
"operation_policies": {
"set": {"set": "AllFastestRoute|Pool|eqiad-mediawiki",
"delete": "AllFastestRoute|Pool|eqiad-mediawiki"
"type": "AllFastestRoute",}
"children": [ "PoolRoute|eqiad-cluster-1", "PoolRoute|eqiad-cluster-2" ]}
},
"delete": {
"type": "AllFastestRoute""aliases": [ "/codfw/mw/" ],
"children": ["route": "PoolRoute|eqiad-cluster-1", "PoolRoute|eqiad-cluster-2" ]codfw-mediawiki"
},
{
"aliases": [ "/codfw/mw-wan/" ],
"route": {
"type": "OperationSelectorRoute",
"default_policy": "PoolRoute|codfw-mediawiki",
}"operation_policies": {
"set": "AllFastestRoute|Pool|codfw-mediawiki",
"delete": "AllFastestRoute|Pool|codfw-mediawiki"
}
}
}
]
}
```