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basho / riak-nodejs-client

The Riak client for Node.js.
Apache License 2.0
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Partially failure nodes handled as error on start [JIRA: CLIENTS-747] #131

Open mogadanez opened 8 years ago

mogadanez commented 8 years ago

I have a cluster with several nodes node1.... node5 When one of the node becomes down in runtime - all works fine, client retry another host when fail. But on start it call callback with error. So, by having err in callback i cannot say my cluster operational or not, i need do something like

new Riak.Client(...., function (err, client) { if (err && ( !client.cluster || !client.cluster.state ) ) { throw err ; } // can work normally });
not sure this is bad, but need note it in doc probably. In our environment we use docker widely, and start/stop happens very often and I was catch this issue during daily backup when one one goes to down.

lukebakken commented 8 years ago

Thanks for reporting this.

What is err in this case?

mogadanez commented 8 years ago

some network error: for example

Error: getaddrinfo ENOTFOUND asdfs asdfs:8087
    at errnoException (dns.js:26:10)
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:77:26)

easy to reproduce by providing asdfs:8087 as one of the cluster node on client construction