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Date: Mon, 1 Feb 2010 07:58:58 -0600
Message-ID: <1c6fcff1002010558y58d149efs1bd97da36ae6e1a5@mail.gmail.com>
Subject: Re: How do cassandra clients failover?
From: Gary Dusbabek <gdusbabek@gmail.com>
To: cassandra-user@incubator.apache.org
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One approach is to discover what other nodes there are before any of
them fail.  Then when you detect failure, you can connect to a
different node that is (hopefully) still responding.

There is an API call that allows you get get a list of all the nodes:
client.get_string_property("token map"), which returns a JSON list of
the node ring.

I hope that helps.

Gary.

2010/2/1 Noble Paul =E0=B4=A8=E0=B5=8B=E0=B4=AC=E0=B4=BF=E0=B4=B3=E0=B5=8D=
=E2=80=8D  =E0=A4=A8=E0=A5=8B=E0=A4=AC=E0=A5=8D=E0=A4=B3=E0=A5=8D <noble.pa=
ul@gmail.com>:
> The cassandra client (thift client) is started up with the host:post
> of a single cassandra node.
>
> * What happens if that node fails?
> * Does it mean that all the operations go through the same node?
>
> --Noble
>