[GitHub] [hadoop] ahmarsuhail commented on a diff in pull request #4458: Hadoop-18190. Adds iostats for prefetching

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

ahmarsuhail commented on code in PR #4458:
URL: https://github.com/apache/hadoop/pull/4458#discussion_r901406333


##########
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/Constants.java:
##########
@@ -674,6 +674,46 @@ private Constants() {
   public static final String STREAM_READ_GAUGE_INPUT_POLICY =
       "stream_read_gauge_input_policy";
 
+  /**
+   * Total number of prefetching operations executed.
+   */
+  public static final String STREAM_READ_PREFETCH_OPERATIONS

Review Comment:
   I've added the stat names in constants as I wasn't sure if these should go into hadoop-common yet since these stats are specific to S3A currently.



-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org


---------------------------------------------------------------------
To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: common-issues-help@hadoop.apache.org