Bryan Beaudreault created HBASE-28302:
-----------------------------------------
Summary: Add tracking of fs read times in ScanMetrics, slow logs,
and warn threshold
Key: HBASE-28302
URL: https://issues.apache.org/jira/browse/HBASE-28302
Project: HBase
Issue Type: Improvement
Reporter: Bryan Beaudreault
We've had this in our production for a while, and it's useful info to have. We
already track FS read times in
[HFileBlock|https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileBlock.java#L1828-L1831C10].
We can project that into the ScanMetrics instance and slow log pretty easily.
It is also helpful to add a slow.fs.read.threshold, over which we log a warn
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
