20K is a lot of indexes, probably too many as ES will need to maintain state about each of those in memory which could mean you have nothing left for caching indexed data! You might want to look at http://www.elasticsearch.org/blog/customizing-your-document-routing/instead, that way you can reduce your index count but still gain the same usability outcome.
Regards, Mark Walkom Infrastructure Engineer Campaign Monitor email: ma...@campaignmonitor.com web: www.campaignmonitor.com On 26 February 2014 08:52, Nikolas Everett <nik9...@gmail.com> wrote: > > > > On Tue, Feb 25, 2014 at 4:46 PM, ESUser <neerav...@gmail.com> wrote: > >> Hi All, >> I am exploring elastic search to create one index per user instead of one >> big index for all the users. Each index would be about 6G. >> I am wondering if anyone has tried it and how would it scale? >> >> I couldn't find that elastic search has limit on maximum number of >> indices. Is it safe/recommended to have say 20K indices for 20K users? >> Would it architecture scale well? >> > > I'm running 1107 indexes right now. Some of the cluster actions are a bit > slower then I'd like but I think that is better in 1.0. I don't think it'd > work well an order of magnitude larger but I could be wrong. > > >> Also, if start with say a 5 nodes cluster now, and add more nodes as I >> need them, does ES redistributes its shards every time I add new nodes? How >> newly added nodes are utilized in a cluster? >> >> > It'll smooth the shards out across the new nodes. There is configuration > for how many concurrent moves can take place and how much bandwidth is ok > per move. The defaults are a bit slow especially if you have fast network > and disks. > > Nik > > -- > 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 elasticsearch+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/elasticsearch/CAPmjWd1Atp5piP5bOYqaxnMPw6iW7yKTY8%3DxQhmO56GCcUsa_A%40mail.gmail.com > . > > For more options, visit https://groups.google.com/groups/opt_out. > -- 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 elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAEM624ZbwOJarNCT8wrEzi047V8GCP3mYfh_2X7MQOFrb4QbCg%40mail.gmail.com. For more options, visit https://groups.google.com/groups/opt_out.
