We are migrating to Elastic Search 5.2.1, and are in development phase. Elastic Search server is hosted on Unix environment. We were able to install server with plugin.
But when server is started, its giving following error and get shut down. (Error persists when we run without plugin).
ERROR: bootstrap checks failed
max file descriptors  for elasticsearch process is too low, increase to at least 
max virtual memory areas vm.max_map_count  is too low, increase to at least 
So “max file descriptors” and “max virtual memory” are they sufficient as mentioned in log above or if they should be adjusted higher or lower.
Any Input will be helpful for us.