Go memstats no longer reported in 1.0

[francisdb]

Since this is not mentioned in the changelog I guess this is a bug?

Influxdb 0.13

> curl -s http://127.0.0.1:8086/debug/vars | grep memstats
"memstats": {"Alloc":240914768,"TotalAlloc":5988867901232,"Sys":8533 ...
>

Influxdb 1.0

> curl -s http://127.0.0.1:8086/debug/vars | grep memstats
>

[jsternberg]

It looks like it is not under "runtime". I'm investigating to see if that's where it's supposed to be or if it got put into the wrong section when we refactored expvars.

[jwilder]

I see them under runtime in 1.0.

$ curl -s localhost:8086/debug/vars | grep runtime
"runtime": {"name":"runtime","tags":{},"values":{"Alloc":6187664,"Frees":72753,"HeapAlloc":6187664,"HeapIdle":5644288,"HeapInUse":8249344,"HeapObjects":19503,"HeapReleased":0,"HeapSys":13893632,"Lookups":41,"Mallocs":92256,"NumGC":5,"NumGoroutine":28,"PauseTotalNs":812000,"Sys":18757880,"TotalAlloc":20621504}},

memstats and cmdline are builtin expvar keys which were probably implicitly added in 0.13.

[jsternberg]

Fixed via #7277.