maoling commented on issue #994: ZOOKEEPER-3432 Improving zookeeper trace for performance and scalability URL: https://github.com/apache/zookeeper/pull/994#issuecomment-534960115 - I take another look at this PR. One of the most valuable thing of this PR is the pointcut of tracing,i.e. where to do the tracing. - I prefer to use the opentracing api to do this work, for the following benefits: - Use the standard terminology(e.g:traceId, span...) to help uses to have a better understanding of the implementation - Save a ton of codes to use the ready-made opentracing api, hide the details about how to generate the traceId, how to send the tracing, how to storage the tracing... - Easy to make users to integrate with their existing tracing system(zipkin, jaeger...) seamlessly - A wonderful ready-made web UI to show the tracing chain to analyse - @gmcatsf Are you free there day? If not, I can pick it up and this PR will still sign off your name. - I watch the etcd community is also doing the tracing feature currently(etcd PR-11179), but that one seems like logging, not tracing. I wish we can land this great feature before etcd, and do it much better :)
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