# Java version update help

**URL:** <https://discuss.elastic.co/t/java-version-update-help/16311>\
**Category:** Elasticsearch\
**Created:** [March 12, 2014, 6:32am UTC](https://discuss.elastic.co/t/java-version-update-help/16311 "2014-03-12T06:32:38Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Ranjith\_Venkatesan](https://avatars.discourse-cdn.com/v4/letter/r/47e85d/32.png) [@Ranjith\_Venkatesan](https://discuss.elastic.co/u/Ranjith_Venkatesan)\
**Post date:** [March 12, 2014, 6:32am UTC](https://discuss.elastic.co/t/java-version-update-help/16311/1 "2014-03-12T06:32:38Z")

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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

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 1:43am UTC](https://discuss.elastic.co/t/java-version-update-help/16311/2 "2017-07-06T01:43:59Z")

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