Replies inline -- Chris Vest System Engineer, Neo Technology [ skype: mr.chrisvest, twitter: chvest ]
> On 14 Jul 2015, at 23:18, Zongheng Yang <zonghen...@gmail.com> wrote: > > Hi All, > > I've been reading up on neo4j's scaling features, and would love to confirm > with some devs about the following: > > 1. Is it correct that neo4j's scale-out feature (HA) is NOT available in the > community version (I'm using 2.2)? This is an easy one from the docs, but > just wondering if there's any latest change of plans. Yes, HA is one of the main selling points of the enterprise edition. > > 2. Focusing on reads -- is it correct that HA (the scale-out features) would > only improve read throughput, but not read latency? Correct in the sense that going from 1 to 3 machines could take 3 times the read workload for the same latency. On the other hand, a 66% reduction in workload per machine could also improve latency, depending on the workload. > > 3. Does neo4j support scaling up (e.g. use more threads on a single physical > machine) to either improve throughput, or improve query latency? (I'm using > 2.2 community version in Java embedded mode.) Yes. Having more cores means Neo4j will allocate more threads to process queries and transactions. It also coalesces transactions that commit concurrently, to reduce the overhead of the individual transaction at commit time. > > Thanks in advance -- any pointers are greatly appreciated. > > Zongheng > > > -- > You received this message because you are subscribed to the Google Groups > "Neo4j" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to neo4j+unsubscr...@googlegroups.com > <mailto:neo4j+unsubscr...@googlegroups.com>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- You received this message because you are subscribed to the Google Groups "Neo4j" group. To unsubscribe from this group and stop receiving emails from it, send an email to neo4j+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
