Report process open filehandles in metrics

This commit is contained in:
Paul "LeoNerd" Evans 2015-04-01 19:04:55 +01:00
parent 813e54bd5b
commit 5583e29513

View File

@ -18,6 +18,8 @@ from __future__ import absolute_import
import logging import logging
from resource import getrusage, getpagesize, RUSAGE_SELF from resource import getrusage, getpagesize, RUSAGE_SELF
import os
import stat
from .metric import ( from .metric import (
CounterMetric, CallbackMetric, DistributionMetric, CacheMetric CounterMetric, CallbackMetric, DistributionMetric, CacheMetric
@ -109,3 +111,35 @@ resource_metrics.register_callback("stime", lambda: rusage.ru_stime * 1000)
# pages # pages
resource_metrics.register_callback("maxrss", lambda: rusage.ru_maxrss * PAGE_SIZE) resource_metrics.register_callback("maxrss", lambda: rusage.ru_maxrss * PAGE_SIZE)
TYPES = {
stat.S_IFSOCK: "SOCK",
stat.S_IFLNK: "LNK",
stat.S_IFREG: "REG",
stat.S_IFBLK: "BLK",
stat.S_IFDIR: "DIR",
stat.S_IFCHR: "CHR",
stat.S_IFIFO: "FIFO",
}
def _process_fds():
counts = {(k,): 0 for k in TYPES.values()}
counts[("other",)] = 0
for fd in os.listdir("/proc/self/fd"):
try:
s = os.stat("/proc/self/fd/%s" % (fd))
fmt = stat.S_IFMT(s.st_mode)
if fmt in TYPES:
t = TYPES[fmt]
else:
t = "other"
counts[(t,)] += 1
except OSError:
# the dirh itself used by listdir() is usually missing by now
pass
return counts
get_metrics_for("process").register_callback("fds", _process_fds, labels=["type"])