Re: cannot build a fully distributed mode hbase instance.

2010-01-16 Thread steven zhuang
I see, thanks. On Sat, Jan 16, 2010 at 9:57 AM, Jean-Daniel Cryans wrote: > We simply removed those messages in the shell for 0.20.3. > > J-D > > On Fri, Jan 15, 2010 at 5:51 PM, steven zhuang > wrote: > > I see. thanks J.D. > > > > here is another question, > > I execute the create table comma

Re: HBase as DB tier for Tomcat - best practices to instantiate HTables?

2010-01-16 Thread Vaibhav Puranik
In case you are using Spring Framework, take a look at the following issue: http://jira.springframework.org/browse/SPR-5950 This shows how to configure HBase connection as a Spring bean. Regards, Vaibhav On Fri, Jan 15, 2010 at 7:04 PM, Andrew Purtell wrote: > A HTable object is not thread sa

Re: Problems with write performance (25kb rows)

2010-01-16 Thread stack
On Sat, Jan 16, 2010 at 5:32 AM, Dmitriy Lyfar wrote: > > As I understood hbase.hregion.memstore.block.multiplier parameter impacts > on > this parameter. I have multiplier equal to 12. It helped me in case 5Kb > rows, but seems not effective with 25Kb rows. I'll provide test results a > bit late

Re: Problems with write performance (25kb rows)

2010-01-16 Thread Dmitriy Lyfar
Hello Stack, Thank you for analyzing. Now just quick answer on your question. 2010/1/16 stack > Looking at our log again Dmitry, you are flushing a lot under load -- > sometimes multiple times per second. > > 2010-01-15 13:52:52,430 DEBUG org.apache.hadoop.hbase.regionserver.Store: > Added hdfs