F**e
发帖数: 593 | 1 Eventually I need subsecond latency and there could be many concurrent
request. What will be my
best choice? |
|
g*****g
发帖数: 34805 | 2 Long poll is blocking on server and server will return a response
immediately on state change or the request times out. It's subsecond. Most
real time mobile app, e.g. chat apps work this way.
On mobile, timeout is typically between 5 min to 15 min, depending on the
gateways. I think home devices generally can have higher timeout though the
route. In any case, assume average timeout is 10 min or 600 seconds, for 1M
device, you are looking at 1667 requests per second, a 10 nodes cluster and
an in... 阅读全帖 |
|
g*****g
发帖数: 34805 | 3 Elastic Search is your friend. With A being indexed, you can expect
subsecond query performance for each title from B. If you run a cluster, you
can keep the performance even if you have hundreds of concurrent queries.
If you want to go with a lighter approach, it's still obviously your problem
can be solved by multi-threading and clustering. |
|
u**s
发帖数: 384 | 4 Title:A method for the determination of changes of glycolytic metabolites in
yeast on a subsecond time scale using extraction at neutral pH
Author:de Koning W, van Dam K.
Journal:Anal Biochem. 1992 Jul;204(1):118-23.
Link:http://www.ncbi.nlm.nih.gov/pubmed/1514678
3x! |
|
