Comments (4)
This is to be expected. The original carbon hash ignores the port number, and has an additional optional target that it takes into account instead. Carbon-c-relay doesn't support this target, therefore your configuration for the hash looks like duplicate hosts, so they all map onto the same hash points. I'm planning to add a fnv1a_ch which uses the same hash behind any_of, but is cheaper, more well-balanced and allows to make your example work as you expect.
Thanks for the report!
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as I can't change the carbon_ch implementation, but I can add a new hash form, fnv1a_ch is there to work in the configuration as you showed above
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Thanks! So I'm testing out a new graphite server at the moment using the fnv1a_ch
hash and its looking pretty good so far. Currently only pushing ~10K metrics/min but that should increase to about 100K/min when the rest of the cluster comes online next week.
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Cool! It's interesting to know how much CPU carbon-c-relay takes (we could try to optimise the hash somewhat if necessary), and how many dispatchers are idle under your load. By default you have 16, but you can change that using the -w flag. We do ~1M/min on some relays, but for the aggregators we have had ~10M/min. Memory usage should stay minimal, queue sizes low (but not necessarily 0).
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Related Issues (20)
- Extreme CPU usage from 3.4 > 3.7 HOT 4
- Memory eating when replicating metrics or maybe due to SSL usage HOT 9
- Metrics get lost when lz4 compressed. HOT 2
- Docker image build failed due to Autoconf
- Disabling SSLv3 or other TLS versions (1.0, 1.1) and unsecure ciphers when listening ssl ? HOT 33
- Any way to have multiple threads per carbon_ch destination without duplicating service? HOT 7
- Supporting mTLS (mutual authentication) on the listener so that we may ask the client to prove who it is HOT 13
- Compiling on CentOS 7 with local OpenSSL shared libraries ? HOT 2
- Behavior of any_of doesn't seem inline with docs HOT 3
- Segmentation fault when supervisorctl start ccrelay HOT 11
- Dockerfile: add bison flex dependency for latest build HOT 4
- Do not prefix stats HOT 8
- Internal metrics not sent until restarted HOT 4
- tag values are corrupted HOT 2
- Issue with any_of causing massive lag in metrics reaching their destination HOT 13
- Segmentation fault if any cluster host can not be resolved HOT 6
- Unable to debug rules with -d -t -l flags HOT 4
- quoted expressions stop working properly HOT 10
- Support lz4 and gzip HOT 6
- Rewrite function doesn't work with tags HOT 2
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