Thanks for the reply. Ok, I guess this comment in the config still confuses me:
# Elasticsearch, by default, binds itself to the 0.0.0.0 address, and listens # on port [9200-9300] for HTTP traffic and on port [9300-9400] for node-to-node # communication. *(the range means that if the port is busy, it will automatically# try the next port)*. So based on your comments, the "is busy" comment really means "if some other app is bound to 9300, ES will automatically keep trying ports in this range until it can bind to one"? Does that jive with your understanding? On Saturday, August 2, 2014 2:13:36 PM UTC-4, Jörg Prante wrote: > > 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] > <javascript:>> 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] <javascript:>. >> 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/a3314d6e-2d16-4066-a718-a7fae63bcf53%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
