Sean Zhong created SPARK-16841:
----------------------------------
Summary: Improve the row level metrics performance when reading
Parquet table
Key: SPARK-16841
URL: https://issues.apache.org/jira/browse/SPARK-16841
Project: Spark
Issue Type: Improvement
Reporter: Sean Zhong
When reading Parquet table, Spark adds row level metrics like recordsRead,
bytesRead
(https://github.com/apache/spark/blob/v2.0.0/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileScanRDD.scala#L93).
The implementation is not very efficient. When parquet vectorized reader is not
used, it may take 20% of read time to update these metrics.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
