Java version update help

Elastic Stack Elasticsearch
1

Hi,

We are using Elasticsearch-0.90.5 for our search application. Currently we have jdk 1.6.16 in our servers(both ES and APP_SERVERS). We will have ElasticSearch Node Client in our APP_SERVERS. We thought of updating JDK in ES machines alone since update of JDK in APP_SERVERS is not possible as of now.

Whether different java version in Node Client and ElasticSearch Cluster(Data and masters) is recommended ?

Thanks in advance

Ranjith Venkatesan