New question #273204 on Graphite:
https://answers.launchpad.net/graphite/+question/273204
Trying to setup a carbon relay with consistent-hashing sending metrics to
multiple cache instances on the same box. Using below settings. When the router
is trying to create the hashing ring, it is throwing "destination instance
already configured" exception. Looks like the carbon-relay code is expecting a
unique IP for each destination. Any idea how we can send metrics to same host
and multiple cache instances?
carbon 0.9.13
==============
[relay:c]
LINE_RECEIVER_INTERFACE = 0.0.0.0
PICKLE_RECEIVER_INTERFACE = 0.0.0.0
MAX_QUEUE_SIZE = 10000
MAX_DATAPOINTS_PER_MESSAGE = 5000
LINE_RECEIVER_PORT = 2413
PICKLE_RECEIVER_PORT = 2414
RELAY_METHOD = consistent-hashing
DESTINATIONS = 127.0.0.1:2104:c, 127.0.0.1:2204:c, 127.0.0.1:2304:c,
127.0.0.1:2404:c
Exception:
/app/graphite/bin/carbon-relay.py --instance=c start
Starting carbon-relay (instance c)
Traceback (most recent call last):
File "/app/graphite/bin/carbon-relay.py", line 32, in <module>
run_twistd_plugin(__file__)
File "/app/graphite/lib/carbon/util.py", line 92, in run_twistd_plugin
runApp(config)
File "/app/graphite/lib/twisted/scripts/twistd.py", line 25, in runApp
_SomeApplicationRunner(config).run()
File "/app/graphite/lib/twisted/application/app.py", line 348, in run
self.application = self.createOrGetApplication()
File "/app/graphite/lib/twisted/application/app.py", line 408, in
createOrGetApplication
ser = plg.makeService(self.config.subOptions)
File "/app/graphite/lib/twisted/plugins/carbon_relay_plugin.py", line 21, in
makeService
return service.createRelayService(options)
File "/app/graphite/lib/carbon/service.py", line 203, in createRelayService
client_manager.startClient(destination)
File "/app/graphite/lib/carbon/client.py", line 232, in startClient
self.router.addDestination(destination)
File "/app/graphite/lib/carbon/routers.py", line 52, in addDestination
raise Exception("destination instance (%s, %s) already configured" %
(server, instance))
Exception: destination instance (127.0.0.1, c) already configured
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