[
https://issues.apache.org/jira/browse/HADOOP-17023?focusedWorklogId=475814&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-475814
]
ASF GitHub Bot logged work on HADOOP-17023:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 28/Aug/20 12:21
Start Date: 28/Aug/20 12:21
Worklog Time Spent: 10m
Work Description: mukund-thakur commented on a change in pull request
#2257:
URL: https://github.com/apache/hadoop/pull/2257#discussion_r479223572
##########
File path:
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3AFileOperationCost.java
##########
@@ -176,6 +176,77 @@ public void testCostOfListFilesOnNonExistingDir() throws
Throwable {
.plus(GET_FILE_STATUS_FNFE)));
}
+ @Test
+ public void testCostOfListStatusOnFile() throws Throwable {
+ describe("Performing listStatus() on a file");
+ Path file = path(getMethodName() + ".txt");
+ S3AFileSystem fs = getFileSystem();
+ touch(fs, file);
+ verifyMetrics(() ->
+ fs.listStatus(file),
+ whenRaw(LIST_STATUS_LIST_OP
+ .plus(GET_FILE_STATUS_ON_FILE)),
+ whenAuthoritative(LIST_STATUS_LIST_OP),
+ whenNonauth(LIST_STATUS_LIST_OP));
+// resetMetricDiffs();
+// fs.listStatus(file);
Review comment:
will remove the comments.
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Issue Time Tracking
-------------------
Worklog Id: (was: 475814)
Time Spent: 20m (was: 10m)
> Tune listStatus() api of s3a.
> -----------------------------
>
> Key: HADOOP-17023
> URL: https://issues.apache.org/jira/browse/HADOOP-17023
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.2.1
> Reporter: Mukund Thakur
> Assignee: Mukund Thakur
> Priority: Major
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Similar optimisation which was done for listLocatedSttaus()
> https://issues.apache.org/jira/browse/HADOOP-16465 can done for listStatus()
> api as well.
> This is going to reduce the number of remote calls in case of directory
> listing.
>
> CC [~ste...@apache.org] [~shwethags]
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