Java heap space error for es-client and es-data when we specify memory limit

[ysundar]

Elasticsearch was working fine without memory limit. Java heap space error occurring when we specify memory limit for es-data and es-client. Current elasticsearh yaml(es-client, es-master and es-data) files doesn't included memory limit and request. There is customer requirement to include memory parameters for elasticsearch. Could you please let me know why we didn't included memory parameters.