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Posted to commits@druid.apache.org by GitBox <gi...@apache.org> on 2019/01/17 17:22:46 UTC
[GitHub] gianm commented on issue #6880: [Proposal] Support a "Random"
function as an expression
gianm commented on issue #6880: [Proposal] Support a "Random" function as an expression
URL: https://github.com/apache/incubator-druid/issues/6880#issuecomment-455256103
Instead of random, maybe some kind of deterministic sampling? (Based on a hash, for example.) The reason for this suggestion is that it's good for ingestion to be deterministic - mapper retries during Hadoop-based ingest and replicas during Kafka-based ingest both rely on determinism.
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