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From Christopher Stelly <cdste...@gmail.com>
Subject Tuning for high RAM and 10GBe
Date Sun, 09 Oct 2016 16:28:17 GMT

The last thread available regarding 10GBe is about 2 years old, with no
obvious recommendations on tuning.

Is there a more complex tuning guide than the example production config
available on Kafka's main site? Anything other than the list of possible

I currently have access to a rather substantial academic cluster to test
on, including multiple machines with the following hardware:

10GBe NICs
250GB RAM each
SSDs on each
(also, optional access to single NVMe)

Using Golang's Kafka interface, I can only seem to get about 80MB/s on the
producer pushing to logs on the localhost, using no replication and reading
from/logging to SSD. If it helps, I can post my configs. I've tried
fiddling with a bunch of broker configs as well as producer configs,
raising the memory limits, max message size, io&network threads etc.

Since the last post from 2014 indicates that there is no public
benchmarking for 10GBe, I'd be happy to run benchmarks /publish results on
this hardware if we can get it tuned up properly.

What kind of broker/producer/consumer settings would you recommend?

- chris

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