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From "Mingliang Liu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14472) Azure: TestReadAndSeekPageBlobAfterWrite fails intermittently
Date Thu, 01 Jun 2017 21:40:04 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16033744#comment-16033744
] 

Mingliang Liu commented on HADOOP-14472:
----------------------------------------

I'd suggest we currently remove this assertion. This fails 8 out of 10 runs on my laptop (not
Azure VM).

A better approach is to support metrics or instrumentation, and we can verify that to make
sure hsync was called enough times. As S3A.

> Azure: TestReadAndSeekPageBlobAfterWrite fails intermittently
> -------------------------------------------------------------
>
>                 Key: HADOOP-14472
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14472
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs/azure, test
>            Reporter: Mingliang Liu
>
> Reported by [HADOOP-14461]
> {code}
> testManySmallWritesWithHFlush(org.apache.hadoop.fs.azure.TestReadAndSeekPageBlobAfterWrite)
 Time elapsed: 1.051 sec  <<< FAILURE!
> java.lang.AssertionError: hflush duration of 13, less than minimum expected of 20
> 	at org.junit.Assert.fail(Assert.java:88)
> 	at org.junit.Assert.assertTrue(Assert.java:41)
> 	at org.apache.hadoop.fs.azure.TestReadAndSeekPageBlobAfterWrite.writeAndReadOneFile(TestReadAndSeekPageBlobAfterWrite.java:286)
> 	at org.apache.hadoop.fs.azure.TestReadAndSeekPageBlobAfterWrite.testManySmallWritesWithHFlush(TestReadAndSeekPageBlobAfterWrite.java:247)
> {code}



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