Add a straight-forward memcached monitor

monitors/memcached.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python
+
+import optparse
+import os
+import sys
+import time
+
+KEYS_BLACKLIST = ('version', 'time', 'pid',
+                'pointer_size', 'limit_maxbytes',
+                'uptime',)
+
+def main():
+    try:
+        import memcache
+    except ImportError, ex:
+        sys.stderr.write('memcached.py requires the `memcache` module\n')
+        return 1
+
+    opts = optparse.OptionParser()
+    opts.add_option('-p', '--prefix', dest='prefix',
+                help='Specify a prefix for the event labels (e.g. foo.system.load)')
+    opts.add_option('-s', '--suffix', dest='suffix',
+                help='Specify a suffix for the event labels (e.g. system.load.1min.hostname')
+    options, args = opts.parse_args()
+
+    prefix = ''
+    suffix = ''
+
+    if options.prefix:
+        prefix = '%s.' % options.prefix
+    if options.suffix:
+        suffix = '.%s' % options.suffix
+
+    m = memcache.Client(('localhost:11211',))
+    now = time.time()
+
+    try:
+        stats = m.get_stats()
+    except Exception, ex:
+        sys.stderr.write('Exception when getting stats: %s\n' % ex)
+        return 1
+
+    for host, data in stats:
+        for key, value in data.iteritems():
+            if key in KEYS_BLACKLIST:
+                continue
+            print '%(prefix)ssystem.memcached.%(key)s%(suffix)s %(value)s %(now)s' % locals()
+
+    return 0
+
+if __name__ == '__main__':
+    sys.exit(main())
+