[ https://issues.apache.org/jira/browse/HADOOP-17293?focusedWorklogId=495943&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-495943 ]

ASF GitHub Bot logged work on HADOOP-17293:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 06/Oct/20 15:07
            Start Date: 06/Oct/20 15:07
    Worklog Time Spent: 10m 
      Work Description: steveloughran commented on pull request #2361:
URL: https://github.com/apache/hadoop/pull/2361#issuecomment-704335369


   tests with markers=keep & delete all good other than
   * continuous read() under-fulfillment breaking tests which expect their buffers to always be full. Root cause clearly some networking issue, but where?
   * ITestS3AInputStreamPerformance stream had to be reopened 3 times, rather than 1. Didn't come back on a rerun.
   
   ```
   [INFO] Running org.apache.hadoop.fs.s3a.auth.delegation.ITestRoleDelegationInFileystem
   [ERROR] Tests run: 8, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 386.753 s <<< FAILURE! - in org.apache.hadoop.fs.s3a.scale.ITestS3AInputStreamPerformance
   [ERROR] testDecompressionSequential128K(org.apache.hadoop.fs.s3a.scale.ITestS3AInputStreamPerformance)  Time elapsed: 215.757 s  <<< FAILURE!
   java.lang.AssertionError: 
   open operations in
   null expected:<1> but was:<3>
   	at org.junit.Assert.fail(Assert.java:88)
   	at org.junit.Assert.failNotEquals(Assert.java:834)
   	at org.junit.Assert.assertEquals(Assert.java:645)
   	at org.apache.hadoop.fs.s3a.scale.ITestS3AInputStreamPerformance.assertOpenOperationCount(ITestS3AInputStreamPerformance.java:189)
   	at org.apache.hadoop.fs.s3a.scale.ITestS3AInputStreamPerformance.assertStreamOpenedExactlyOnce(ITestS3AInputStreamPerformance.java:181)
   	at org.apache.hadoop.fs.s3a.scale.ITestS3AInputStreamPerformance.testDecompressionSequential128K(ITestS3AInputStreamPerformance.java:324)
   ```
   
   Assumption: again, network playing up.


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 495943)
    Time Spent: 1h  (was: 50m)

> refreshing S3Guard records after TTL-triggered-HEAD breaks some workflows
> -------------------------------------------------------------------------
>
>                 Key: HADOOP-17293
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17293
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 3.3.1
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> an incidental part of HDP-13230 was a fix to innerGetFileStatus, wherein after a HEAD request we would update the DDB record, so resetting it's TTL
> Applications which did remote updates of buckets without going through s3guard are now triggering failures in applications in the cluster when they go to open the file



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