Hi, My customer are running elasticsearch version 1.4 single instance (no cluster) on centos 6.7, in production. I am asked to install the newest elasticsearch version 2.x on the same server. Can I install version 2.x on the same server and then run both versions at the same time while the elasti…

Upgrade from elasticsearch 1.4 to 2.x

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Upgrade from elasticsearch 1.4 to 2.x