Hi,
Thisis Xuan with Microsoft. We are looking at the Tez statistics model trying toextend it to support our custom workloads. Here are some observations of thefew statistics objects in the current codebase: 1. InputStatistics,OutputStatictics and VertexStatiscs are interfaces in tez-api. 2. TaskStatistics is a classin tez-runtime-internals. 3. VertexStatiscsImpl is aninner class of VertexImpl implementing VertexStatistics in tez-dag. 4. IOStatistics is in a classin tez-runtime-internals and IOStaticsticsImpl is a static inner class ofVertexImpl extending IOStatistics but implementing InputStatistics andOutputStatistics. Ourintention is to extend VertexStatisticsImpl so that we can aggregate the custompayload in TaskStatistics. But the object model here seems to be ratherconfusing and not consistent. We are planning to do some work in this area toimprove it, but not sure whether there is any work going on right now and thestatus of it? Regards, XuanCao
