Voldemort Zone expansion proxy put failures

[Chinmay Gupte]

Hi,

We are seeing proxy put failures during zone expansion. Here are the relevant logs,

ERROR [voldemort-niosocket-server11] voldemort.server.niosocket.AsyncRequestHandler  -

java.lang.NullPointerException

ERROR [voldemort-proxy-put-thread24] voldemort.store.rebalancing.AsyncProxyPutTask  - Exception in proxy put for proxyNode: 8 from node:1 on key XYZ async Version:version(1:1, 8:6) ts:123456

voldemort.store.UnreachableStoreException: Failure while checking out socket for hostA:6099:

at voldemort.store.socket.clientrequest.ClientRequestExecutorPool.checkout(ClientRequestExecutorPool.java:199)

at voldemort.store.socket.SocketStore.request(SocketStore.java:279)

at voldemort.store.socket.SocketStore.put(SocketStore.java:246)

at voldemort.store.socket.SocketStore.put(SocketStore.java:63)

at voldemort.store.rebalancing.AsyncProxyPutTask.run(AsyncProxyPutTask.java:80)

at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)

at java.util.concurrent.FutureTask.run(FutureTask.java:266)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

What are the parameters which define the proxy put timeout? Also, the NPE in bold is not very helpful, can someone please elaborate on it? In general, how can we avoid it in the future?

Thanks for your help,

Chinmay

[Arunachalam]

What version you are on ?

Thanks,

Arun.

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[Chinmay Gupte]

Voldemort version: 1.6.9

Client version: 1.10.3

Thanks,

Chinmay

[Arunachalam]

AsyncRequestHandler on 1.6.9 is very old and is more than 3 years old. I don't know what issue could trigger the NullPointerException.

Thanks,

Arun.