Hi Flavio, Thank you. Then I think it would be OK for me. It will run in 3 bookies but the traffic will not be very high. I only consider that if the efficiency will be affected after long time of running. Besides, I want to know how to share one ZooKeeper cluster with several BookKeeper clusters? That is, how to specify a root directory of ZooKeeper for one Bookie?
2012/10/23 Flavio Junqueira <[email protected]> > Hi Wei Chen, > > Your question does not make much sense without more information. Millions > of ledgers over how many bookies and how much time? What's the traffic for > each ledger? > > In general I would say that it is not a problem because we have designed > real applications that work with two orders of magnitude more ledgers than > what you're referring to. > > -Flavio > > On Oct 23, 2012, at 9:57 AM, ChenWei wrote: > > Hi, > In the designing of BookKeeper, how many ledgers are acceptable? > I may use millions of ledgers in turn. And I only write into the newest > ledgers in one client but may randomly read all the history ledgers on > several other clients. Will it lead to a low efficiency for writing and > reading or a heavy load on ZooKeeper? > Besides, will so much ledgers will lead to a disk fragmentation? > > -- > > Wei Chen, Graduate Student > LIGO Scientific Collaboration Research Group > Tsinghua University, Beijing, P. R. China > http://ligo.org.cn > > > -- Wei Chen, Graduate Student LIGO Scientific Collaboration Research Group Tsinghua University, Beijing, P. R. China http://ligo.org.cn
