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Andor Molnar commented on ZOOKEEPER-2990: ----------------------------------------- We can talk about it, but I would rather create stable release of 3.5 as soon as possible and push users to upgrade. > Implement probabilistic tracing > ------------------------------- > > Key: ZOOKEEPER-2990 > URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2990 > Project: ZooKeeper > Issue Type: Improvement > Components: server > Reporter: Bogdan Kanivets > Assignee: Bogdan Kanivets > Priority: Minor > Labels: pull-request-available > Time Spent: 0.5h > Remaining Estimate: 0h > > It would be nice to have an ability to do probabilistic tracing similar to > Cassandra > [nodetool|https://docs.datastax.com/en/dse/5.1/dse-admin/datastax_enterprise/tools/nodetool/toolsSetTraceProbability.html] > This will help debug issues in prod systems. > I'd like to contribute if everyone is ok with the feature. > My suggestion is to add an extra parameter to ZooTrace to handle it. > Questions: > * should it be one global param or per each ZooTrace mask? I'm thinking per > mask > * should it be a new 4lw or part of 'stmk'? Leaning towards new word and > refactoring param passing to words (stmk is a special case right now). > * there are places in the code that use LOG.trace directly. That will have > to change to ZooTrace > I can make some initial implementation for demo/review. > -- This message was sent by Atlassian JIRA (v7.6.3#76005)