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Posted to issues@spark.apache.org by "Reynold Xin (JIRA)" <ji...@apache.org> on 2018/11/29 20:41:00 UTC

[jira] [Created] (SPARK-26222) Scan: track file listing time

Reynold Xin created SPARK-26222:
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             Summary: Scan: track file listing time
                 Key: SPARK-26222
                 URL: https://issues.apache.org/jira/browse/SPARK-26222
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
    Affects Versions: 2.4.0
            Reporter: Reynold Xin


We should track file listing time and add it to the scan node's SQL metric, so we have visibility how much is spent in file listing. It'd be useful to track not just duration, but also start and end time so we can construct a timeline.

This requires a little bit design to define what file listing time means, when we are reading from cache, vs not cache.

 



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