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bc7503feee
Scylla now expose the prometheus API by default. This patch chagnes scyllatop to use the Prometheus API, the collect API is still available. The main changes in the patch: * Move collectd specific logic inside collectd. * Add support for help information. * Add command line to configure prometheus end point and to enable collectd. * Add a prometheus class that collect information from prometheus. Fixes: #1541 Message-Id: <20180531124156.26336-1-amnon@scylladb.com>
26 lines
807 B
Python
Executable File
26 lines
807 B
Python
Executable File
#! /usr/bin/python
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import sys
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import urllib2
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import re
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class Prometheus(object):
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_FIRST_LINE_PATTERN = re.compile('^(?P<lines>\d+)')
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_METRIC_INFO_PATTERN = re.compile('^(?P<key>.+) (?P<value>[^ ]+)[ ]*$')
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_METRIC_DISCOVER_PATTERN = re.compile('^(?P<metric>[^#].+) (?P<value>[^ ]+)[ ]*$')
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_METRIC_DISCOVER_PATTERN_WITH_HELP = re.compile('^# HELP (?P<metric>[^ ]+)(?P<help>.*)$')
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def __init__(self, host):
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self._host = host
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def read_metrics(self):
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return urllib2.urlopen(self._host).readlines()
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def get_metrics(self):
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return self.read_metrics()
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def query_val(self, val):
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return [l for l in self.get_metrics() if (not l.startswith('#')) and (val=="" or re.match(val, l))]
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def query_list(self):
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return self.get_metrics()
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