[GitHub] [incubator-doris] morningman opened a new pull request #1530: Add more logs and metrics to trace the broker load process

[GitBox <gi...@apache.org>]

morningman opened a new pull request #1530: Add more logs and metrics to trace the broker load process
URL: https://github.com/apache/incubator-doris/pull/1530
 
 
   1. The Operator wants to known when the job being scheduled as PENDING
   and LOADING. And how long it takes to finish these sub states. So I add log
   at the beginning of each state.
   
   2. Add 2 metrics on BE to monitor the memtable's flush time.
   `memtable_flush_total` and `memtable_flush_duration_us`
   
   3. Add a log when closing OlapTableSink, to record the add_batch() time of each
   Backend, cumulative.

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