Re: Slow performance after upgrading from 2.0.9 to 2.1.11

2016-01-14 Thread Zhiyan Shao
Praveen, if you search "Read is slower in 2.1.6 than 2.0.14" in this forum, you can find another thread I sent a while ago. The perf test I did indicated that read is slower for 2.1.6 than 2.0.14 so we stayed with 2.0.14. On Tue, Jan 12, 2016 at 9:35 AM, Peddi, Praveen wrote: > Thanks Jeff for y

Re: Read is slower in 2.1.6 than 2.0.14?

2015-06-25 Thread Zhiyan Shao
ative an I think that Datastax driver allow CQL / > native protocol only, you should be good to go. Basically does your clients > use port 9042 (by default) ? > > C*heers, > > Alain > > > 2015-06-25 17:36 GMT+02:00 Zhiyan Shao : > >> Thanks Alain, >> >>

Re: Read is slower in 2.1.6 than 2.0.14?

2015-06-25 Thread Zhiyan Shao
tp://www.datastax.com/dev/blog/cassandra-2-1-now-over-50-faster) > > BTW interesting benchmark, but having the right conf is interesting. Also > you might want to go to 2.1.7 that mainly fixes a memory leak afaik. > > C*heers, > > Alain > Le 25 juin 2015 01:23, "Zhiyan Shao

Read is slower in 2.1.6 than 2.0.14?

2015-06-24 Thread Zhiyan Shao
Hi, we recently experimented read performance on both versions and found read is slower in 2.1.6. Here is our setup: 1. Machines: 3 physical hosts. Each node has 24 cores CPU, 256G memory and 8x600GB SAS disks with raid 1. 2. Replica is 3 and a billion rows of data is inserted. 3. Key cache capac