We are using 0.90.1 version ES and are planning for high availability
testing. While the entire scheme to enable the cluster to be highly
available is clear, I wanted to get some idea about ES Service lifetime in
terms of Mean-Time to Failure and Time of Recovery in cases of failure. Any
historic evidences will also help, as it will be vital for us to calculate
the actual availability of the system across an year.
While I understand that ES provides seamless high availability through
replication, but any failure, will impact the performance to some extent
and this calculation will help in deriving the actual number of nodes that
we should consider without compromising on the performance as well, while
the system is available.
Any ideas/facts would be very helpful .
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