1. No, there is one port in use per node (beside HTTP on port 9200). You can define the ports in the configuration.
2. First, do not configure ports for public access. You should set up your ES cluster only in a private network. The question if only port 9300 is "open" or more ports does not determine the performance. 3. As said, performance is a different topic. The number of ports open or in use does not correlate with performance (speed/throughput). As a side note, 9300 seems like it was a random choice, there is no specific reason for this port number, you can choose any other port number that is available. According to IANA, the default ES ports 9200/9300 are reserved ports "wap-wsp" and "vrace" so if you want to declare your port number as "official", you might want to consult http://www.iana.org/assignments/service-names-port-numbers/ for an unassigned port number to avoid conflicts. Jörg On Sat, Aug 2, 2014 at 6:26 PM, Matt Hughes <[email protected]> wrote: > I'm running elasticsearch in a somewhat locked down environment and the > less ports I have open, the better. > > I guess my questions boil down to: > > 1) Why do you need multiple ports open in the 93xx range? > 2) Will anything bad happen if I just have 9300 open? Will performance > suffer, and if so, in what areas? > a) if it does relate to performance, how many do I need to have open if > I'm not going to open the whole range? > > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/elasticsearch/39b917bf-fdf3-4c83-8df9-9075493f0f90%40googlegroups.com > <https://groups.google.com/d/msgid/elasticsearch/39b917bf-fdf3-4c83-8df9-9075493f0f90%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAKdsXoFJF4O1Dp9EMDfZJPo9JFVePhwmpe3e%2B2XdQOBwL_D9_Q%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
