etcd/pkg/runtime
Yicheng Qin 7a7e1f7a7c etcdserver: metrics and monitor number of file descriptor
It exposes the metrics of file descriptor limit and file descriptor used.
Moreover, it prints out warning when more than 80% of fd limit has been used.

```
2015/04/08 01:26:19 etcdserver: 80% of the file descriptor limit is open
[open = 969, limit = 1024]
```
2015-04-08 11:17:48 -07:00
..
fds_linux.go etcdserver: metrics and monitor number of file descriptor 2015-04-08 11:17:48 -07:00
fds_other.go etcdserver: metrics and monitor number of file descriptor 2015-04-08 11:17:48 -07:00