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detect ES version automatically #13

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detect ES version automatically #13

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45 changes: 25 additions & 20 deletions elasticsearch.py
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Original file line number Diff line number Diff line change
Expand Up @@ -19,13 +19,12 @@
import urllib2
import socket
import collections
from distutils.version import StrictVersion

PREFIX = "elasticsearch"
ES_CLUSTER = "elasticsearch"
ES_HOST = "localhost"
ES_PORT = 9200
ES_VERSION = "1.0"
ES_URL = ""
VERBOSE_LOGGING = False

Stat = collections.namedtuple('Stat', ('type', 'path'))
Expand Down Expand Up @@ -70,7 +69,7 @@
'indices.refresh.time': Stat("counter", "nodes.%s.indices.refresh.total_time_in_millis"),
}

# DICT: ElasticSearch 0.9.x
# DICT: ElasticSearch 0.90.x
STATS_ES09 = {

##GC
Expand Down Expand Up @@ -160,7 +159,7 @@ def lookup_stat(stat, json):

def configure_callback(conf):
"""Received configuration information"""
global ES_HOST, ES_PORT, ES_URL, ES_VERSION, VERBOSE_LOGGING, STATS_CUR
global ES_HOST, ES_PORT, VERBOSE_LOGGING
for node in conf.children:
if node.key == 'Host':
ES_HOST = node.values[0]
Expand All @@ -170,30 +169,36 @@ def configure_callback(conf):
VERBOSE_LOGGING = bool(node.values[0])
elif node.key == 'Cluster':
ES_CLUSTER = node.values[0]
elif node.key == "Version":
ES_VERSION = node.values[0]
else:
collectd.warning('elasticsearch plugin: Unknown config key: %s.'
% node.key)
if ES_VERSION == "1.0":
ES_URL = "http://" + ES_HOST + ":" + str(ES_PORT) + "/_nodes/_local/stats/transport,http,process,jvm,indices"
STATS_CUR = dict(STATS.items() + STATS_ES1.items())
else:
ES_URL = "http://" + ES_HOST + ":" + str(ES_PORT) + "/_cluster/nodes/_local/stats?http=true&process=true&jvm=true&transport=true"
STATS_CUR = dict(STATS.items() + STATS_ES09.items())

log_verbose('Configured with version=%s, host=%s, port=%s, url=%s' % (ES_VERSION, ES_HOST, ES_PORT, ES_URL))

log_verbose('Configured with host=%s, port=%s' % (ES_HOST, ES_PORT))

def fetch_stats():
global ES_CLUSTER

def fetch_url(url):
try:
result = json.load(urllib2.urlopen(ES_URL, timeout=10))
result = json.load(urllib2.urlopen(url, timeout=10))
except urllib2.URLError, e:
collectd.error('elasticsearch plugin: Error connecting to %s - %r' % (ES_URL, e))
collectd.error('elasticsearch plugin: Error connecting to %s - %r' % (url, e))
return None
print result['cluster_name']
return result


def fetch_stats():
global ES_CLUSTER, ES_HOST, ES_PORT, STATS_CUR

base_url = 'http://' + ES_HOST + ':' + str(ES_PORT) + '/'
server_info = fetch_url(base_url)
version = server_info['version']['number']

if StrictVersion(version) >= StrictVersion('1.0.0'):
ES_URL = base_url + '_nodes/_local/stats/transport,http,process,jvm,indices'
STATS_CUR = dict(STATS.items() + STATS_ES1.items())
else:
ES_URL = base_url + '_cluster/nodes/_local/stats?http=true&process=true&jvm=true&transport=true'
STATS_CUR = dict(STATS.items() + STATS_ES09.items())

result = fetch_url(ES_URL)

ES_CLUSTER = result['cluster_name']
return parse_stats(result)
Expand Down