Re: Hbase scans taking a lot of time

2013-01-25 Thread Luke Lu
You'll have this problem if you have a large number of column families being scanned/populated at the same time. Make sure the data you scan/populate frequently are in the same column family (you can have many columns in a column family). Unlike BigTable/Hypertable which has the concept of locality

Re: Announcing HappyBase, a developer-friendly Python library to interact with HBase

2012-05-21 Thread Luke Lu
Looks like it use the legacy thrift interface. Stack, do you know anybody using the new thrift2 interface? On Mon, May 21, 2012 at 8:55 AM, Stack wrote: > On Sun, May 20, 2012 at 3:14 PM, Wouter Bolsterlee wrote: >> Hi all, >> >> I'm happy to announce HappyBase, a developer-friendly Python libra

Re: Hbase performance with HDFS

2011-07-11 Thread Luke Lu
On Mon, Jul 11, 2011 at 12:37 PM, Joey Echeverria wrote: > Do the semantics of sync change? Do you pause one or more outstanding > syncs, sync a group of data (4KB maybe) and then return from all of > those outstanding syncs simultaneously? Group commit is a standard storage technique to trade a