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