Muchos does not automatically change its Accumulo configuration to take advantage of better hardware. However, it does have a performance profile setting in its configuration (see link below) where you can select a profile (or create your own) based on your the hardware you are using.
https://github.com/apache/fluo-muchos/blob/master/conf/muchos.props.example#L94 On Wed, Aug 29, 2018 at 11:35 AM Josh Elser <els...@apache.org> wrote: > Does Muchos actually change the Accumulo configuration when you are > changing the underlying hardware? > > On 8/29/18 8:04 AM, guy sharon wrote: > > hi, > > > > Continuing my performance benchmarks, I'm still trying to figure out if > > the results I'm getting are reasonable and why throwing more hardware at > > the problem doesn't help. What I'm doing is a full table scan on a table > > with 6M entries. This is Accumulo 1.7.4 with Zookeeper 3.4.12 and Hadoop > > 2.8.4. The table is populated by > > org.apache.accumulo.examples.simple.helloworld.InsertWithBatchWriter > > modified to write 6M entries instead of 50k. Reads are performed by > > "bin/accumulo org.apache.accumulo.examples.simple.helloworld.ReadData -i > > muchos -z localhost:2181 -u root -t hellotable -p secret". Here are the > > results I got: > > > > 1. 5 tserver cluster as configured by Muchos > > (https://github.com/apache/fluo-muchos), running on m5d.large AWS > > machines (2vCPU, 8GB RAM) running CentOS 7. Master is on a separate > > server. Scan took 12 seconds. > > 2. As above except with m5d.xlarge (4vCPU, 16GB RAM). Same results. > > 3. Splitting the table to 4 tablets causes the runtime to increase to 16 > > seconds. > > 4. 7 tserver cluster running m5d.xlarge servers. 12 seconds. > > 5. Single node cluster on m5d.12xlarge (48 cores, 192GB RAM), running > > Amazon Linux. Configuration as provided by Uno > > (https://github.com/apache/fluo-uno). Total time was 26 seconds. > > > > Offhand I would say this is very slow. I'm guessing I'm making some sort > > of newbie (possibly configuration) mistake but I can't figure out what > > it is. Can anyone point me to something that might help me find out what > > it is? > > > > thanks, > > Guy. > > > > >
