Comment 11 for bug 1286209

I get the same problem. Here is the reproduce steps:
I have two network nodes in my environment. Both of them installed L3 agent and metering agent.
Then I create some metering rules and two routers, and the routers are scheduled on different network nodes. Then this error will happen. The error is because metering agent will monitor all the router namespace include the namespace on other network nodes.

Thanks.