Hello all, I am a sysadmin and do not know that much about Hadoop. I run a stats/metrics tracking system that logs stats over time so you can look at historical and current data and perform some trend analysis. I know I can access several hadoop metrics via jmx by going to http://localhost:50070/jmx?qry=hadoop:* and I've got a script that parses all that data so that I can stuff any of it that I want into our stats system.
So, with all that preamble, I have one question. Which metrics are worth tracking? There are a *lot* of metrics returned via the jmx query but I doubt all of them are critically important. Which metrics are important to track if we want to watch for any trends or spikes in our hadoop cluster? Please provide some education to this noob. Thanks! -- Bob Jones Linux Systems/Network Engineer ME Cloud Computing Advanced Systems Development, Inc. 1 (434) 964-3156 ****************************************************************************** This message and any attachments are solely for the intended recipient and may contain confidential or privileged information. If you are not the intended recipient, any disclosure, copying, use, or distribution of the information included in this message and any attachments is prohibited. If you have received this communication in error, please notify us by reply e-mail and immediately and permanently delete this message and any attachments. Any views or opinions presented in this email are solely those of the author and do not necessarily represent those of ASD. Employees of ASD are expressly required not to make defamatory statements and not to infringe or authorize any infringement of copyright or any other legal right by email communications. Any such communication is contrary to company policy and outside the scope of the employment of the individual concerned. The company will not accept any liability in respect. ******************************************************************************
