Has anybody used tuned ("tune D") to manage their system performance
profiles on an Accumulo cluster?I've recently been looking into tuned, and found it a very convenient tool for switching between performance profiles, and verifying the current configuration. It beats manually setting sysctl settings (which I usually forget to do right away). I haven't actually created my own tuned profiles, though, because I'm not an expert on Linux system tuning. However, I have found the built-in latency-network profile to be useful. Has anybody tried a custom profile (for Accumulo specifically, or Hadoop clusters in general)? Has anybody else found using tuned profiles to be a useful way to manage (CM and verification) system configuration for your clusters?
