[ANNOUNCE] Trafodion 1.0.0 is now available

2015-01-29 Thread Birdsall, Dave
Hello HBase Users, I wanted to let you know that a new release 1.0.0 of the Trafodion project is now available for download at http://downloads.trafodion.org/. This is a major release, including substantial improvements designed to make Trafodion the Enterprise-class Transactional SQL Engine fo

Re: After compression, the table folders under hdfs://hbase are empty

2015-01-29 Thread Artem Ervits
I am sorry fat-fingers.. Artem Ervits On Jan 29, 2015 8:40 PM, "Artem Ervits" wrote: > Artem Ervits > On Jan 28, 2015 1:12 PM, "kennyut" wrote: > >> In the /var/log/hbase folder, I can find two files: >> 1. hbase-cmf-hbase-HBASERESTSERVER-ip-172-x-x-x.ec2.internal.log.out >> 2. hbase-cmf-hbase-

Re: After compression, the table folders under hdfs://hbase are empty

2015-01-29 Thread Artem Ervits
Artem Ervits On Jan 28, 2015 1:12 PM, "kennyut" wrote: > In the /var/log/hbase folder, I can find two files: > 1. hbase-cmf-hbase-HBASERESTSERVER-ip-172-x-x-x.ec2.internal.log.out > 2. hbase-cmf-hbase-MASTER-ip-172-x-x-x.ec2.internal.log.out > > The '1' file was updated several days before, so it

Re: Tool to to execute an benchmark for HBase.

2015-01-29 Thread Guillermo Ortiz
There's an option when you execute yscb to say how many clients threads you want to use. I tried with 1/8/16/32. Those results are with 16, the improvement 1vs8 it's pretty high not as much 16 to 32. I only use one yscb, could it be that important? -threads : the number of client threads. By defau

Re: Tool to to execute an benchmark for HBase.

2015-01-29 Thread Nishanth S
How many instances of ycsb do you run and how many threads do you use per instance.I guess these ops are per instance and you should get similar numbers if you run more instances.In short try running more workload instances... -Nishanth On Thu, Jan 29, 2015 at 8:49 AM, Guillermo Ortiz wrote:

Re: Tool to to execute an benchmark for HBase.

2015-01-29 Thread Guillermo Ortiz
Yes, I'm using 40%. i can't access to those data either. I don't know how YSCB executes the reads and if they are random and could take advange of the cache. Do you think that it's an acceptable performance? 2015-01-29 16:26 GMT+01:00 Ted Yu : > What's the value for hfile.block.cache.size ? > >

Re: Tool to to execute an benchmark for HBase.

2015-01-29 Thread Ted Yu
What's the value for hfile.block.cache.size ? By default it is 40%. You may want to increase its value if you're using default. Andrew published some ycsb results : http://people.apache.org/~apurtell/results-ycsb-0.98.8/ycsb -0.98.0-vs-0.98.8.pdf However, I couldn't access the above now. Cheers

Re: Tool to to execute an benchmark for HBase.

2015-01-29 Thread Guillermo Ortiz
Is there any result with that benchmark to compare?? I'm executing the different workloads and for example for 100% Reads in a table with 10Millions of records I only get an performance of 2000operations/sec. I hoped much better performance but I could be wrong. I'd like to know if it's a normal pe