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55 lines
1.9 KiB
Python
Executable file
55 lines
1.9 KiB
Python
Executable file
#!/srv/newsblur/venv/newsblur/bin/python
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import os
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from vendor.munin.cassandra import MuninCassandraPlugin
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class CassandraLatencyPlugin(MuninCassandraPlugin):
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title = "read/write latency"
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args = "--base 1000 -l 0"
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vlabel = "seconds"
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@property
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def fields(self):
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fs = []
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cfstats = self.cfstats()
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for kf, kfstats in cfstats.items():
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if not self.keyspaces or kf not in self.keyspaces:
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continue
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for cf, cfstats in kfstats['cf'].items():
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name = "%s_%s_read" % (kf, cf)
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label = "%s.%s read latency" % (kf, cf)
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fs.append((name, dict(
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label = label,
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info = label,
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type = "GAUGE",
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min = "0",
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)))
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name = "%s_%s_write" % (kf, cf)
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label = "%s.%s write latency" % (kf, cf)
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fs.append((name, dict(
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label = label,
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info = label,
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type = "GAUGE",
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min = "0",
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)))
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return fs
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def execute(self):
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cfstats = self.cfstats()
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values = {}
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for kf, kfstats in cfstats.items():
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if not self.keyspaces or kf not in self.keyspaces:
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continue
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for cf, cfstats in kfstats['cf'].items():
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name = "%s_%s" % (kf, cf)
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for k, n in (('read', 'Read Latency'), ('write', 'Write Latency')):
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latency = cfstats[n].split(' ')[0]
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if latency == 'NaN':
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latency = 'U'
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else:
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latency = float(latency) / 1000
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values["%s_%s" % (name, k)] = latency
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return values
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if __name__ == "__main__":
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CassandraLatencyPlugin().run()
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