16.04 - mongodb WARNING: You are running on a NUMA machine - Ask Ubuntu


i have dedicated server running ubuntu 16.04 lts. have problem mongodb service. when enter in shell receive message :

warning: running on numa machine. suggest launching mongod avoid performance problems: numactl --interleave=all mongod [other options]

how can solve it? have tried solution : how should start mongodb on numa machine? , : http://greproot.com/warning-you-are-running-on-a-numa-machine-we-suggest-launching-mongod-like-this-to-avoid-performance-problems-numactl-interleaveall-mongod-other-options/ nothing... sorry bad english :d

you may disable numa mentioned in message copy/pasted process. may disable system wide in grub, setting numa=off kernel. option disabling in bios - may depend on hardware use (for dell, example, setting "node interleaving" "enable") solution if have dedicated database server mongo.

you can verify later using "numactl -h" command - should see 1 node presented.

generally - may - depending on exact situation, ignore message if mongo instance isn't big. may not critical problem, mongo during startup warns settings, may cause issues. yes - on production system, lot of data, big memory allocations - may suffer performance issues or have memory allocation failures.


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