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Merge pull request #5610 from scholtalbers/feature/cgroup_metrics
Add basic cgroup metric collection
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| """The module describes the ``cgroup`` job metrics plugin.""" | ||
| import logging | ||
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| from galaxy.util import asbool, nice_size | ||
| from ..instrumenters import InstrumentPlugin | ||
| from ...metrics import formatting | ||
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| log = logging.getLogger(__name__) | ||
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| TITLES = { | ||
| "memory.memsw.max_usage_in_bytes": "Max memory usage (MEM+SWP)", | ||
| "memory.max_usage_in_bytes": "Max memory usage (MEM)", | ||
| "memory.limit_in_bytes": "Memory limit on cgroup (MEM)", | ||
| "memory.memsw.limit_in_bytes": "Memory limit on cgroup (MEM+SWP)", | ||
| "memory.soft_limit_in_bytes": "Memory softlimit on cgroup", | ||
| "memory.failcnt": "Failed to allocate memory count", | ||
| "memory.oom_control": "OOM Control enabled", | ||
| "under_oom": "Was OOM Killer active?", | ||
| "cpuacct.usage": "CPU Time" | ||
| } | ||
| CONVERSION = { | ||
| "memory.memsw.max_usage_in_bytes": nice_size, | ||
| "memory.max_usage_in_bytes": nice_size, | ||
| "memory.limit_in_bytes": nice_size, | ||
| "memory.memsw.limit_in_bytes": nice_size, | ||
| "memory.soft_limit_in_bytes": nice_size, | ||
| "under_oom": lambda x: "Yes" if x == "1" else "No", | ||
| "cpuacct.usage": lambda x: formatting.seconds_to_str(int(x) / 10**9) # convert nanoseconds | ||
| } | ||
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| class CgroupPluginFormatter(formatting.JobMetricFormatter): | ||
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| def format(self, key, value): | ||
| title = TITLES.get(key, key) | ||
| if key in CONVERSION: | ||
| return title, CONVERSION[key](value) | ||
| elif key.endswith("_bytes"): | ||
| try: | ||
| return title, nice_size(key) | ||
| except ValueError: | ||
| pass | ||
| return title, value | ||
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| class CgroupPlugin(InstrumentPlugin): | ||
| """ Plugin that collects memory and cpu utilization from within a cgroup. | ||
| """ | ||
| plugin_type = "cgroup" | ||
| formatter = CgroupPluginFormatter() | ||
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| def __init__(self, **kwargs): | ||
| self.verbose = asbool(kwargs.get("verbose", False)) | ||
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| def post_execute_instrument(self, job_directory): | ||
| commands = [] | ||
| commands.append(self.__record_cgroup_cpu_usage(job_directory)) | ||
| commands.append(self.__record_cgroup_memory_usage(job_directory)) | ||
| return commands | ||
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| def job_properties(self, job_id, job_directory): | ||
| metrics = self.__read_metrics(self.__cgroup_metrics_file(job_directory)) | ||
| return metrics | ||
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| def __record_cgroup_cpu_usage(self, job_directory): | ||
| return """if [ `command -v cgget` ] && [ -e /proc/$$/cgroup ]; then cat /proc/$$/cgroup | awk -F':' '$2=="cpuacct,cpu"{print $2":"$3}' | xargs -I{} cgget -g {} > %(metrics)s ; else echo "" > %(metrics)s; fi""" % {"metrics": self.__cgroup_metrics_file(job_directory)} | ||
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| def __record_cgroup_memory_usage(self, job_directory): | ||
| return """if [ `command -v cgget` ] && [ -e /proc/$$/cgroup ]; then cat /proc/$$/cgroup | awk -F':' '$2=="memory"{print $2":"$3}' | xargs -I{} cgget -g {} >> %(metrics)s ; else echo "" > %(metrics)s; fi""" % {"metrics": self.__cgroup_metrics_file(job_directory)} | ||
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| def __cgroup_metrics_file(self, job_directory): | ||
| return self._instrument_file_path(job_directory, "_metrics") | ||
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| def __read_metrics(self, path): | ||
| metrics = {} | ||
| with open(path, "r") as infile: | ||
| for line in infile: | ||
| line = line.strip() | ||
| try: | ||
| key, value = line.split(": ") | ||
| if key in TITLES or self.verbose: | ||
| metrics[key] = value | ||
| except ValueError: | ||
| if line.startswith("under_oom"): | ||
| metrics["under_oom"] = line.split(" ")[1] | ||
| return metrics | ||
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| __all__ = ('CgroupPlugin', ) |