metadata store not available for bootstrapping client

[Mat Evans]

Hi,

I'm having a problem getting anything back from the metadata store to bootstrap a client.

This is using 1.6.0.

This is what the shell client shows

➜  voldemort-release-1.6.0-cutoff  ./bin/voldemort-shell.sh metadata tcp://localhost:6676

[16:41:49,856 voldemort.client.ZenStoreClient] INFO Bootstrapping metadata for store metadata  [main]

[16:41:49,969 voldemort.client.AbstractStoreClientFactory] INFO Client zone-id [0] Attempting to obtain metadata for store [metadata]   [main]

[16:41:50,066 voldemort.client.AbstractStoreClientFactory] ERROR Bootstrap - unknown store: metadata  [main]

[16:41:50,070 voldemort.store.socket.clientrequest.ClientRequestExecutorFactory$ClientRequestSelectorManager] INFO Closed, exiting  [voldemort-niosocket-client-1]

[16:41:50,071 voldemort.store.socket.clientrequest.ClientRequestExecutorFactory$ClientRequestSelectorManager] INFO Closed, exiting  [voldemort-niosocket-client-2]

[16:41:50,071 voldemort.store.socket.clientrequest.ClientRequestExecutorFactory$ClientRequestSelectorManager] INFO Closed, exiting  [voldemort-niosocket-client-3]

[16:41:50,071 voldemort.store.socket.clientrequest.ClientRequestExecutorFactory$ClientRequestSelectorManager] INFO Closed, exiting  [voldemort-niosocket-client-4]

[16:41:50,071 voldemort.store.socket.clientrequest.ClientRequestExecutorFactory$ClientRequestSelectorManager] INFO Closed, exiting  [voldemort-niosocket-client-6]

[16:41:50,071 voldemort.store.socket.clientrequest.ClientRequestExecutorFactory$ClientRequestSelectorManager] INFO Closed, exiting  [voldemort-niosocket-client-7]

[16:41:50,071 voldemort.store.socket.clientrequest.ClientRequestExecutorFactory$ClientRequestSelectorManager] INFO Closed, exiting  [voldemort-niosocket-client-5]

[16:41:50,071 voldemort.store.socket.clientrequest.ClientRequestExecutorFactory$ClientRequestSelectorManager] INFO Closed, exiting  [voldemort-niosocket-client-8]

[16:41:50,073 voldemort.store.socket.clientrequest.ClientRequestExecutor] WARN No client associated with Socket[unconnected]  [main]

[16:41:50,073 voldemort.store.socket.clientrequest.ClientRequestExecutor] INFO Closing remote connection from Socket[unconnected]  [main]

[16:41:50,073 voldemort.common.service.VoldemortService] INFO Stopping scheduler-service  [main]

[16:41:50,073 voldemort.common.service.VoldemortService] INFO The service is already stopped, ignoring duplicate attempt.  [main]

Could not connect to server: Unknown store 'metadata'.

But I see the same thing in my Go client.

..and the server output doesn't seem to not anything as an error

[16:41:49,924 voldemort.server.niosocket.AsyncRequestHandler] INFO Protocol negotiated for Socket[addr=/127.0.0.1,port=54462,localport=6676]: voldemort-native-v3  [voldemort-niosocket-server1]

[16:41:50,069 voldemort.server.niosocket.AsyncRequestHandler] INFO Closing remote connection from Socket[addr=/127.0.0.1,port=54462,localport=6676]  [voldemort-niosocket-server1]

Do I need to put the metadata store specs in stores.xml? or is there something else obvious i'm missing?

Thanks,

Mat

[Brendan Harris]

Hi Mat,

The metadata store is a system store, which cannot be accessed like a normal store. What is it you're wanting to do?

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[Mat Evans]

Hi Brendan,

ah ok - I was intending to get all the cluster info at the beginning of a connection to manage reconnecting etc

Not necessarily client routing, but knowing what nodes are available.

Is that not possible from a client?

[Brendan Harris]

It is possible. Take a look at the bootstrap() method in the AbstractStoreClientFactory to get an idea of how that works. I don't have the code in front of me right now, so I cannot offer much more advice on that.

[Mat Evans]

Hi Brendan, 

I looked at that just now and I think it's doing just a plain get on the metadata store using the cluster.xml key which is what I'm trying to do in my client.

But I just get 

2014/06/25 17:45:02 Unknown store 'metadata'.

I'll have another look at the code when I get home tonight, might see something i'm missing!

Thanks for your help

[Mat Evans]

Found the problem - ShouldRoute wasn't being set to false properly.

thanks,