Re: Slow sync cost

2016-05-10 Thread Graham Baecher
As Bryan mentioned a couple weeks ago, we've been working on an HBase G1GC tuning blog post. It went up today: http://product.hubspot.com/blog/g1gc-tuning-your-hbase-cluster It's a long post, detailing all the stages we went through for experimenting and tuning. If you're looking for a summary of

write performance regression in CDH 5.9?

2016-11-18 Thread Graham Baecher
Hi all, We're looking to update the HBase version we're running on our servers, but noticed while comparing performance test results a the previous version that Puts now seem to be slower. Specifically, comparing HBase 1.2.0-cdh5.9.0 to 1.2.0-cdh5.8.0 using YCSB, it looks like mean read latency is

Re: write performance regression in CDH 5.9?

2016-11-18 Thread Graham Baecher
ov 18, 2016 at 11:29 AM, Jeremy Carroll wrote: > Use FIFO. Much better in our testing > > On Fri, Nov 18, 2016 at 7:46 AM Graham Baecher > wrote: > > > Hi all, > > > > We're looking to update the HBase version we're running on our servers, > but > &g