I am trying to upgrade ES cluster to 5 and using _plugin/elasticsearch-migration/ when i am running cluster checkup and its complaining about issue At least 65536 file descriptors must be available to Elasticsearch first before i can upgrade, Here is what my node stats looks
when i call _nodes/stats/process?filter_path=.max_file_descriptor i see below value
when i call _nodes/_local?process=true&pretty=true i see below value but not with process block
"max_file_descriptors" : "65536"
below entries in /usr/share/elasticsearch/elasticsearch.sh
any idea what the issue is