I assume you have read http://hbase.apache.org/book.html#perf.reading
What hbase release are you using ? Does this region server host hbase:meta (assuming 0.98 release is used) ? Cheers On Sat, Jan 24, 2015 at 5:15 PM, Pun Intended <[email protected]> wrote: > Hello, > > I have noticed lately that my apps started running longer. The longest > running tasks seem all to be requesting data from a single region server. > That region server read rate is very high in comparison to the read rate of > all the other region servers (1000reqs/sec vs 4-5 reqs/sec elsewhere). That > region server has about the same number of regions as all the rest: 26-27 > regions. Number of store files, total region size, everything else on the > region server seems ok and in the same ranges as the rest of the region > servers. The keys should be evenly distributed - randomly generated > 38-digit numbers. I am doing a simple Hbase scan from all my MR jobs. > > I'd appreciate any suggestions on what to look into it or if you have any > ideas how I can solve this issue. > > Thanks! >
