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Grant Henke updated KUDU-1587: ------------------------------ Target Version/s: 1.7.0 (was: 1.6.0) > Memory-based backpressure is insufficient on seek-bound workloads > ----------------------------------------------------------------- > > Key: KUDU-1587 > URL: https://issues.apache.org/jira/browse/KUDU-1587 > Project: Kudu > Issue Type: Bug > Components: tserver > Affects Versions: 0.10.0 > Reporter: Todd Lipcon > Priority: Critical > Attachments: graph.png, queue-time.png > > > I pushed a uniform random insert workload from a bunch of clients to the > point that the vast majority of bloom filters no longer fit in buffer cache, > and the compaction had fallen way behind. Thus, every inserted row turns into > 40+ seeks (due to non-compact data) and takes 400-500ms. In this kind of > workload, the current backpressure (based on memory usage) is insufficient to > prevent ridiculously long queues. -- This message was sent by Atlassian JIRA (v7.6.3#76005)