2009/12/11 Edward Capriolo <[email protected]> > As for lumping all the daemons together, it is technically, possible, > but they were designed to run separately so that they are easier > manage. It would probably would make troubleshooting harder. Which sub > process is causing high cpu. Just because the TaskTracker fails does > not mean that the DataNode should be down. It is a cool idea though. > > If you want some monitoring hints I'll plug my presentation > http://www.slideshare.net/cloudera/hw09-monitoring-best-practices > > http://www.cloudera.com/blog/2009/11/09/hadoop-world-monitoring-best-practices-from-ed-capriolo/ >
Edward Thanks for answer. We are not planning to use TaskTrackers (no MR jobs only Hbase) so I don't know if there is a any reason to run it. Can you think of any problems that can occur? Jetty instances clash between DataNode and Hbase RegionServer for example?
