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Re: [Question #261219]: Collectd- Carbon-Relay issue

To: graphite-dev@xxxxxxxxxxxxxxxxxxx
From: Denis Zhdanov <question261219@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 11 Feb 2015 09:11:59 -0000
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Question #261219 on Graphite changed:
https://answers.launchpad.net/graphite/+question/261219

Denis Zhdanov posted a new comment:
Hi Johnu,

1. Yes, consistent hashing is way to balance the metrics. Is copying metrics to two destinations counting as balancing? I think so.
AFAIK relay method "rules" was designed to route different metrics to different destinations (using regex match by metric name) and with REPLICATION_FACTOR=1 it will put every metric to first destination and stops after that. If you need to copy metrics to two destinations you need to set up REPLICATION_FACTOR=2, maybe even relay_method="rules" will work in this case, but I'm not sure.

2. Yes. Maybe even relay_method="rules" will work with
REPLICATION_FACTOR=2, please check.

3. Yes, that's whole point - no relay rules supported in aggregator. I think
REPLICATION_FACTOR=2
DESTINATIONS = 172.29.86.27:2024, 127.0.0.1:2014
in [aggregator] section will help.

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