Auto set memory-chunk base on the available free memory detected

[netroby]

We know we can using golang runtime package to get memstats information. so we know the free memory available.

https://golang.org/pkg/runtime/

Now the default storage.local.memory-chunks be 1024*1024. It not good if the installed target machine have not enough memory. like a VM with only 512MB memory.

prometheus/cmd/prometheus/config.go

Line 117 in 6703404

&cfg.storage.MemoryChunks, "storage.local.memory-chunks", 1024*1024,

So would we please add the auto detected memory?
We should not using more then 85% availble free memory. or we will got OOM .

[beorn7]

This is less trivial than suggested here.
In any case, what you want will be implemented as a solution of #455 .

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.