STATSD_IPV6 is not working

[ischedrov]

Hi there,

I'm trying to configure statsd client on k8s pod. STATSD_IPV6=1 was configured during pod initialization. The statsd exporter pod placed behind the service in the same namespace and available via service name 'statsd-exporter' on 9125 UDP port. When I'm trying to connect to statsd exporter using the code below:

import logging
from statsd import StatsClient

logging.basicConfig(level=logging.DEBUG)
log = logging.getLogger(__name__)

try:
    statsd_client = StatsClient(host='statsd-exporter', port=9125)
    log.info("Successfully connected to StatsD over IPv6")
except Exception as e:
    log.error("Error connecting to StatsD over IPv6: %s", e)

I received an error: ERROR:main:Error connecting to StatsD over IPv6: [Errno -5] No address associated with hostname

root@pod: echo $STATSD_IPV6
1

But if I specify parameter ipv6=True like that statsd_client = StatsClient(host='statsd-exporter', port=9125, ipv6=True) everything works correctly:

INFO:main:Successfully connected to StatsD over IPv6

From my perspective, the environment where I'm testing looks correct. DNS correctly resolves the names and 9125 is available (tested via netcat utility).

[jsocol]

The constructor on the client doesn’t automatically read environment variables. There is a default client configured via the environment in from statsd.defaults.env import statsd, which pulls all of the configuration from the environment, if you don’t mind setting STATSD_HOST="statsd-exporter" and STATSD_PORT=9125 too

[ischedrov]

@jsocol thank you! It works