Hi Kevin, Always good practise to reply to the mailing list so others can benefit from the content
basho bench is the best place to start, If you have a working cluster or even a working single node, follow the benchmarking guide[0] Please let me see some of the specific errors you're having and we can help resolve them. Outside of basho bench, I recommend benchmarking the raw performance of your VM, you can do this using a variety of tools like iostat, iperf or a test suite like Phoronix test suite, a very comprehensive FOSS tool[1] look at the `aio` test I'd also recommend benchmarking each time you make a configuration change to really understand how effective that change was [0]http://docs.basho.com/riak/latest/cookbooks/Benchmarking/ [1]http://www.phoronix-test-suite.com/ Kind Regards Richard On Fri, Feb 22, 2013 at 10:14 PM, Kevin Burton <[email protected]>wrote: > That was my next question. I have tried to get basho_bench to work but so > far have been unsuccessful. If you have a simple "hello world" sample > config I would greatly appreciate it. I have tried a bunch of configs in > the examples directory but get met with one error or another. > Other than that I have just timed various client driver calls. Mostly > random reads some writes. > > On Feb 22, 2013, at 3:48 PM, Richard Shaw <[email protected]> wrote: > > Hi Kevin, > > What kind of benchmarking have you done on your VMs and what did you use ? > > Kind Regards > > Richard > > > On Fri, Feb 22, 2013 at 9:49 AM, Kevin Burton <[email protected]>wrote: > >> Ok I suspected as much. This will give me more ammo when requesting more >> resources. Thank you. >> Now, back to the original question. Given that the physical hardware is >> taken care of. What parameters are most important when tuning a cluster. >> Again for arguments sake assume the same 4 node cluster with a read-write >> ratio of about 75 percent. >> >> On Feb 21, 2013, at 8:26 PM, Alexander Sicular <[email protected]> >> wrote: >> >> It can't be said enough times but the number one thing you can do to >> ensure that you are getting true performance (not to mention redundancy) is >> to use different physical hardware for each of your nodes. Under no >> circumstances should you have more than one VM (one logical node in a Riak >> cluster) on the same physical hardware. Also, use multiple >> connections/threads/parallelism/whatever on client side and be sure to hit >> all the nodes in the cluster haproxy roundrobin-esque when writing to Riak. >> Everything else is in the noise. >> >> -Alexander Sicular >> >> @siculars >> >> On Feb 21, 2013, at 9:04 PM, Kevin Burton <[email protected]> >> wrote: >> >> >> There each has about 20-30GB of disk space. They each are a VM so I am >> not sure how to specify the CPU. They all seem to be 64 bit Intel >> processors but I could tell you the clock speed. The network is 1Gb >> Ethernet.**** >> >> *From:* Sean Carey [mailto:[email protected]] >> *Sent:* Thursday, February 21, 2013 7:59 PM >> *To:* Kevin Burton >> *Cc:* [email protected] >> *Subject:* Re: Tuning a Riak cluster.**** >> ** ** >> Kevin,**** >> Disk and CPU, and Network?**** >> ** ** >> >> >> Sean Carey >> @densone**** >> >> On Thursday, February 21, 2013 at 20:31, Kevin Burton wrote:**** >> >> **** >> I have a cluster of 4 machines (4 Linux VM machines each allocated about >> 1 Gb of memory – yea I know it isn’t a lot). I would like to get some >> pointers on getting the fastest query time possible given these meager >> resources. Thank you.**** >> _______________________________________________**** >> riak-users mailing list**** >> [email protected]**** >> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com**** >> >> ** ** >> _______________________________________________ >> riak-users mailing list >> [email protected] >> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com >> >> >> >> _______________________________________________ >> riak-users mailing list >> [email protected] >> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com >> >> >
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