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reduce default kafka-mdm channel-buffer-size#886
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in prod we use 1000. using too high values will cause the sarama library to consume too much memory when backfilling, which is not reclaimed, leaving a permament increased memory usage footprint. see https://snapshot.raintank.io/dashboard/snapshot/lu1Aw1kPcbx4fk8qdtgZPQ61yyeTwbBk?orgId=2 Even though we plan to switch to the confluent kafka library imminently (#879) it's worthwhile to set this straight, for the record.
woodsaj
approved these changes
Apr 12, 2018
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in prod we use 1000.
using too high values will cause the sarama library to consume too much
memory when backfilling, which is not reclaimed, leaving a permament
increased memory usage footprint.
see
https://snapshot.raintank.io/dashboard/snapshot/lu1Aw1kPcbx4fk8qdtgZPQ61yyeTwbBk?orgId=2
Even though we plan to switch to the confluent kafka library imminently
(#879)
it's worthwhile to set this straight, for the record.
cc @shanson7