How To: Check Couchbase Speed

How To: Check Couchbase Speed
Memcached is at the heart of Couchbase and its the worlds fastest and most reliable cache solution. Like any process or application on a server there are many varibles that go into determining speed. PRO TIP – When testing or evaluating Couchbase remember to install it on a vanilla OEM operating system image. I have seen many times Couchbase performing sub-par because a “standard corporate” image have other applications or setting that interfere with Couchbase operations. How do we measure the performance of Couchbase? The tool to use for performance information is CBSTATS. CBSTATS is a CLI tool ussually located in Couchbase server at /opt/couchbase/bin/cbstats This tools only relates to performance stats to only a particular node and bucket. The stats are for only performance on the couchbase server level side and does not have any data of client side stats. #./cbstats <IP>:11210 <command> -b <bucket_name> -p <bucket_password> <command> all allocator checkpoint [vbid] dcp dcpagg dispatcher [logs] failovers hash [detail] items kvstore kvtimings raw argument reset slabs tap [username password] tapagg timings vkey keyname vbid CBSTATS is on a per node per bucket bases. NOTE – This only measures speed at the Couchbase Server Application it self and not to the SDK. The specific command you want is timings #./cbstats 127.0.0.1:11210 timings -b <bucket_name> -p <bucket_password> This will give you a histogram of all the specific events. You will not be able to track down a single and specific GET() or SET() but you can see a history.Many times you will want to test and clear the history and test again. The best method for that is to use the reset command to clear the histogram. #./cbstats 127.0.0.1:11210 reset -b <bucket_name> -p <bucket_password> For more details about CBSTATS click here on the official documentation: http://docs.couchbase.com/admin/admin/CLI/cbstats-intro.html The source code for CBSTATS is here on GITHUB: https://github.com/couchbase/couchbase-cliArray Array

How To: Installing HPCC Systems on a single machine – Getting Started

How To: Installing HPCC Systems on a single machine – Getting Started
HPCC Systems is easy to install and takes about 5 minutes. Its so easy to install even a 8 year old can install it :-). Watch the video below to see how easy it is. (5:08 minutes) After installing go to http://<ip_address_of_install>:8010 to get to the administrator screen and query playground. Download Here: http://hpccsystems.com/download/free-community-edition/server-platform or Get Source code at Github: https://github.com/hpcc-systemsArray Array

How To: Deploy a HPCC Systems Cluster on AWS the Easy Way

How To: Deploy a HPCC Systems Cluster on AWS the Easy Way
Running an HPCC Systems cluster inside an Amazon Web Services (AWS) Elastic Cloud (EC2) allows you to instantiate and run HPCC Systems clusters of different sizes on the fly. This is useful for: • Proof-of-concept • Experimentation • Learning • Leveraging the HPCC Systems platform without incurring cost of hardware and administration • Create and use an HPCC Systems cluster immediately without purchasing and installing new hardware You can create a small cluster for small tasks or larger clusters for larger jobs. This flexibility allows you to match cost and processing power to the job at hand. Temporary EC2 nodes allow you to “rent” computing capacity without long term commitments. In this manner, you pay as you go instead of incurring large fixed costs at the start. Keep in mind that you should terminate any unneeded instances to avoid paying for computing time you don’t need. In a few steps you can have a HPCC Systems cluster up and running in AWS HPCC Systems® Instant Cloud for AWS Provide minimal information and press a button to instantiate your cluster. Click here to begin. The manual below provides additional details. We are working with Amazon on a process to run an HPCC Systems cluster in an environment similar to Amazon Elastic Map Reduce (EMR). In addition, HPCC Systems is working on its own Enterprise Cloud offering, but it is not yet ready to be announced. Have a question about HPCC and AWS? Post on the Cloud Forums. Original Source: http://hpccsystems.com/download/docs/aws-install-thorArray Array