Lars Hofhansl created HDFS-5571:
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Summary: postScannerFilterRow consumes a lot of CPU in tall table
scans
Key: HDFS-5571
URL: https://issues.apache.org/jira/browse/HDFS-5571
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Lars Hofhansl
Continuing my profiling quest, I find that in scanning tall table (and
filtering everything on the server) a quarter of the time is now spent in the
postScannerFilterRow coprocessor hook.
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