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From tdunning <...@git.apache.org>
Subject [GitHub] zookeeper issue #307: ZOOKEEPER-2770 ZooKeeper slow operation log
Date Thu, 13 Jul 2017 00:37:12 GMT
Github user tdunning commented on the issue:

    So here is an alternative suggestion.
    For each class of operation (GET, PUT, MULTIPUT, DELETE and so on) maintain a data structure
(such as t-digest or Floathistogram see https://github.com/tdunning/t-digest) that keeps track
of the distribution of latencies for that operation.
    Log any transactions that are above a settable percentile latency for operations of that
class. Default could be 99.99%.
    Operations longer than 2x the 99.9%-ile latency should not be entered into the historical

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