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From Neha Narkhede <neha.narkh...@gmail.com>
Subject Re: Add a new node in an existing kafka 0.8 cluster
Date Mon, 02 Dec 2013 21:53:27 GMT
You can keep the broker.id of the new node same as the old node. Then it
will start up and copy everything from the leader for the partitions it is
assigned to. After it is caught up, you can run the
to balance the leaders, so that the new node will have a few leaders
and will start serving data.


On Mon, Dec 2, 2013 at 1:50 PM, Maxime Nay <maximenay@gmail.com> wrote:

> Hi,
> Last week we set-up a new kafka 0.8 cluster, using the beta1 released
> available here : http://kafka.apache.org/downloads.html
> It worked fine until we tried to replace a node in this cluster.
> We shutdown a node, then bring up a new one. The new node is registered in
> zookeeper, but it doesn't get any data. (We have 10 nodes, 10 partitions
> for each topic, and a replication factor of 3.)
> We saw that there are some tools available to balance the load, and add
> some broker to an existing cluster (
> https://cwiki.apache.org/confluence/display/KAFKA/Replication+tools#Replicationtools-ClusterExpansion
> ).
> But it seems they are not yet included in the Kafka version that we
> download from kafka.apache.org.
> Is there any branch where we can get a more current - production safe
> version where we can find the latest tools? Is it safe to get code from
> trunk and deploy it in production?
> Thanks
> Maxime

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