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From Guillermo Ortiz <konstt2...@gmail.com>
Subject Re: Tool to to execute an benchmark for HBase.
Date Thu, 29 Jan 2015 17:23:26 GMT
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 default, the YCSB Client
uses a single worker thread, but additional threads can be specified.
This is often done to increase the amount of load offered against the
database.

2015-01-29 17:27 GMT+01:00 Nishanth S <nishanth.2884@gmail.com>:
> 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 <konstt2000@gmail.com>
> wrote:
>
>> 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 <yuzhihong@gmail.com>:
>> > 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
>> >
>> > On Thu, Jan 29, 2015 at 7:14 AM, Guillermo Ortiz <konstt2000@gmail.com>
>> > wrote:
>> >
>> >> 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 performance or I could have
>> >> something bad configured.
>> >>
>> >>
>> >> I have splitted the tabled and all the records are balanced and used
>> >> snappy.
>> >> The cluster has a master and 4 regions servers with 256Gb,Cores 2 (32
>> >> w/ Hyperthreading), 0.98.6-cdh5.3.0,
>> >>
>> >> RegionServer is executed with these parameters:
>> >>  /usr/java/jdk1.7.0_67-cloudera/bin/java -Dproc_regionserver
>> >> -XX:OnOutOfMemoryError=kill -9 %p -Xmx1000m
>> >> -Djava.net.preferIPv4Stack=true -Xms640679936 -Xmx640679936
>> >> -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:-CMSConcurrentMTEnabled
>> >> -XX:CMSInitiatingOccupancyFraction=70 -XX:+CMSParallelRemarkEnabled
>> >> -XX:OnOutOfMemoryError=/usr/lib64/cmf/service/common/killparent.sh
>> >> -Dhbase.log.dir=/var/log/hbase
>> >>
>> >>
>> -Dhbase.log.file=hbase-cmf-hbase-REGIONSERVER-cnsalbsrvcl23.lvtc.gsnet.corp.log.out
>> >>
>> -Dhbase.home.dir=/opt/cloudera/parcels/CDH-5.3.0-1.cdh5.3.0.p0.30/lib/hbase
>> >> -Dhbase.id.str= -Dhbase.root.logger=INFO,RFA
>> >>
>> >>
>> -Djava.library.path=/opt/cloudera/parcels/CDH-5.3.0-1.cdh5.3.0.p0.30/lib/hadoop/lib/native
>> >> -Dhbase.security.logger=INFO,RFAS
>> >> org.apache.hadoop.hbase.regionserver.HRegionServer start
>> >>
>> >>
>> >> The results for 100% reads are
>> >> [OVERALL], RunTime(ms), 42734.0
>> >> [OVERALL], Throughput(ops/sec), 2340.0570973931763
>> >> [UPDATE], Operations, 1.0
>> >> [UPDATE], AverageLatency(us), 103170.0
>> >> [UPDATE], MinLatency(us), 103168.0
>> >> [UPDATE], MaxLatency(us), 103171.0
>> >> [UPDATE], 95thPercentileLatency(ms), 103.0
>> >> [UPDATE], 99thPercentileLatency(ms), 103.0
>> >> [READ], Operations, 100000.0
>> >> [READ], AverageLatency(us), 412.5534
>> >> [READ], AverageLatency(us,corrected), 581.6249026771276
>> >> [READ], MinLatency(us), 218.0
>> >> [READ], MaxLatency(us), 268383.0
>> >> [READ], MaxLatency(us,corrected), 268383.0
>> >> [READ], 95thPercentileLatency(ms), 0.0
>> >> [READ], 95thPercentileLatency(ms,corrected), 0.0
>> >> [READ], 99thPercentileLatency(ms), 0.0
>> >> [READ], 99thPercentileLatency(ms,corrected), 0.0
>> >> [READ], Return=0, 100000
>> >> [CLEANUP], Operations, 1.0
>> >> [CLEANUP], AverageLatency(us), 103598.0
>> >> [CLEANUP], MinLatency(us), 103596.0
>> >> [CLEANUP], MaxLatency(us), 103599.0
>> >> [CLEANUP], 95thPercentileLatency(ms), 103.0
>> >> [CLEANUP], 99thPercentileLatency(ms), 103.0
>> >>
>> >> hbase(main):030:0> describe 'username'
>> >> DESCRIPTION
>> >>                                     ENABLED
>> >>  'username', {NAME => 'cf', DATA_BLOCK_ENCODING => 'NONE', BLOOMFILTER
>> >> => 'ROW', REPLICATION_SCOPE => '0', true
>> >>   VERSIONS => '1', COMPRESSION => 'SNAPPY', MIN_VERSIONS => '0',
TTL
>> >> => 'FOREVER', KEEP_DELETED_CELLS => '
>> >>  false', BLOCKSIZE => '65536', IN_MEMORY => 'false', BLOCKCACHE =>
>> 'true'}
>> >> 1 row(s) in 0.0170 seconds
>> >>
>> >> 2015-01-29 5:27 GMT+01:00 Ted Yu <yuzhihong@gmail.com>:
>> >> > Maybe ask on Cassandra mailing list for the benchmark tool they use
?
>> >> >
>> >> > Cheers
>> >> >
>> >> > On Wed, Jan 28, 2015 at 1:23 PM, Guillermo Ortiz <
>> konstt2000@gmail.com>
>> >> > wrote:
>> >> >
>> >> >> I was checking that web, do you know if there's another possibility
>> >> >> since last updated for Cassandra was two years ago and I'd like
to
>> >> >> compare bothof them with kind of same tool/code.
>> >> >>
>> >> >> 2015-01-28 22:10 GMT+01:00 Ted Yu <yuzhihong@gmail.com>:
>> >> >> > Guillermo:
>> >> >> > If you use hbase 0.98.x, please consider Andrew's ycsb repo:
>> >> >> >
>> >> >> > https://github.com/apurtell/ycsb/tree/new_hbase_client
>> >> >> >
>> >> >> > Cheers
>> >> >> >
>> >> >> > On Wed, Jan 28, 2015 at 12:41 PM, Nishanth S <
>> nishanth.2884@gmail.com
>> >> >
>> >> >> > wrote:
>> >> >> >
>> >> >> >> You can use ycsb for this purpose.See here
>> >> >> >>
>> >> >> >> https://github.com/brianfrankcooper/YCSB/wiki/Getting-Started
>> >> >> >> -Nishanth
>> >> >> >>
>> >> >> >> On Wed, Jan 28, 2015 at 1:37 PM, Guillermo Ortiz <
>> >> konstt2000@gmail.com>
>> >> >> >> wrote:
>> >> >> >>
>> >> >> >> > Hi,
>> >> >> >> >
>> >> >> >> > I'd like to do some benchmarks fo HBase but I don't
know what
>> tool
>> >> >> >> > could use. I started to make some code but I guess
that there're
>> >> some
>> >> >> >> > easier.
>> >> >> >> >
>> >> >> >> > I've taken a look to JMeter, but I guess that I'd
attack
>> directly
>> >> from
>> >> >> >> > Java, JMeter looks great but I don't know if it fits
well in
>> this
>> >> >> >> > scenario. What tool could I use to take some measures
as time to
>> >> >> >> > response some read and write request, etc. I'd like
that to be
>> >> able to
>> >> >> >> > make the same benchmarks to Cassandra.
>> >> >> >> >
>> >> >> >>
>> >> >>
>> >>
>>

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