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Re: [Question #234874]: random metrics not showing up in the graphite browser or whisper storage

To: graphite-dev@xxxxxxxxxxxxxxxxxxx
From: Aleksey Marin <question234874@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 03 Sep 2013 08:51:13 -0000
Reply-to: question234874@xxxxxxxxxxxxxxxxxxxxx
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Question #234874 on Graphite changed:
https://answers.launchpad.net/graphite/+question/234874

    Status: Open => Answered

Aleksey Marin proposed the following answer:
I faced with the same problem  (with some differences) using Python
sender. It looks like case carbon-cache can not manage with an amount of
data arriving in short time period and simply drops some values&

Some workarounds can be done:
- Try to insert (a little) pause between updates. 
- MAX_QUEUE_SIZE && MAX_DATAPOINTS_PER_MESSAGE && USE_FLOW_CONTROL in carbon.conf may be set for better performance
- You may decide to use more carbon-caches behind carbon-relay with appropriate settings 

I had setup an pause betwen updates and had increased
MAX_DATAPOINTS_PER_MESSAGE in confug. For now it looks like no data had
lost since reconfiguration.

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