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https://issues.apache.org/jira/browse/HADOOP-17092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17162166#comment-17162166
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Hudson commented on HADOOP-17092:
---------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #18461 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/18461/])
HADOOP-17092. ABFS: Making AzureADAuthenticator.getToken() throw (github: rev
b4b23ef0d1a0afe6251370a61f922ecdb1624165)
* (edit)
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/constants/ConfigurationKeys.java
* (edit)
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/AbfsConfiguration.java
* (edit)
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/constants/FileSystemConfigurations.java
* (edit) hadoop-tools/hadoop-azure/src/site/markdown/abfs.md
* (edit)
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/ExponentialRetryPolicy.java
* (add)
hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azurebfs/services/TestAzureADAuthenticator.java
* (edit)
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/AzureBlobFileSystemStore.java
* (edit)
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/oauth2/AzureADAuthenticator.java
> ABFS: Long waits and unintended retries when multiple threads try to fetch
> token using ClientCreds
> --------------------------------------------------------------------------------------------------
>
> Key: HADOOP-17092
> URL: https://issues.apache.org/jira/browse/HADOOP-17092
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/azure
> Affects Versions: 3.3.0
> Reporter: Sneha Vijayarajan
> Assignee: Bilahari T H
> Priority: Major
> Labels: abfsactive
> Fix For: 3.4.0
>
>
> Issue reported by DB:
> we recently experienced some problems with ABFS driver that highlighted a
> possible issue with long hangs following synchronized retries when using the
> _ClientCredsTokenProvider_ and calling _AbfsClient.getAccessToken_. We have
> seen
> [https://github.com/apache/hadoop/pull/1923|https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fapache%2Fhadoop%2Fpull%2F1923&data=02%7c01%7csnvijaya%40microsoft.com%7c7362c5ba4af24a553c4308d807ec459d%7c72f988bf86f141af91ab2d7cd011db47%7c1%7c0%7c637268058650442694&sdata=FePBBkEqj5kI2Ty4kNr3a2oJgB8Kvy3NvyRK8NoxyH4%3D&reserved=0],
> but it does not directly apply since we are not using a custom token
> provider, but instead _ClientCredsTokenProvider_ that ultimately relies on
> _AzureADAuthenticator_.
>
> The problem was that the critical section of getAccessToken, combined with a
> possibly redundant retry policy, made jobs hanging for a very long time,
> since only one thread at a time could make progress, and this progress
> amounted to basically retrying on a failing connection for 30-60 minutes.
>
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