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From vkulichenko <valentin.kuliche...@gmail.com>
Subject Re: Cluster breaks down on network failure
Date Thu, 27 Oct 2016 20:26:55 GMT
Hi Kristian,

Once a node gets segmented, it can't be reconnected back to the cluster,
because Ignite doesn't merge the data after split brain. This is done to
guarantee data consistency.

If segmentation happens, you should stop segmented nodes and start them
again. Note that in your scenario this will mean restart of the full
cluster, because if connection is lost between data centers, all nodes will
be segmented. Generally, in this case you may want to define which part of
the cluster continues running and which one is restarted. This is not
available in Ignite, however GridGain provides this feature as a part of
their paid solution [1]. Also they have async data center replication that
probably fits your use case better [2].

[1] https://gridgain.readme.io/docs/network-segmentation
[2] https://gridgain.readme.io/docs/data-center-replication

-Val



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