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https://issues.apache.org/jira/browse/HADOOP-13476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15415606#comment-15415606
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Aaron Fabbri commented on HADOOP-13476:
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woot. Thanks [~cnauroth]!
> CredentialProviderFactory fails at class loading from libhdfs (JNI)
> -------------------------------------------------------------------
>
> Key: HADOOP-13476
> URL: https://issues.apache.org/jira/browse/HADOOP-13476
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs/s3
> Affects Versions: 2.8.0, 2.9.0, 3.0.0-alpha2
> Reporter: Aaron Fabbri
> Assignee: Aaron Fabbri
> Fix For: 2.9.0
>
> Attachments: HADOOP-13476.001.patch
>
>
> This bug was discovered when trying to run Impala (libhdfs.so) with s3a and
> Java KeyStore credentials. Because JNI threads have a different classloader
> (bootstrap), we fail to load JavaKeyStoreProvider.
> {quote}
> 15:11:42.658087 26310 jni-util.cc:166] java.util.ServiceConfigurationError:
> org.apache.hadoop.security.alias.CredentialProviderFactory: Provider
> org.apache.hadoop.security.alias.JavaKeyStoreProvider$Factory not found
> at java.util.ServiceLoader.fail(ServiceLoader.java:231)
> at java.util.ServiceLoader.access$300(ServiceLoader.java:181)
> at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:365)
> at java.util.ServiceLoader$1.next(ServiceLoader.java:445)
> at
> org.apache.hadoop.security.alias.CredentialProviderFactory.getProviders(CredentialProviderFactory.java:57)
> at
> org.apache.hadoop.conf.Configuration.getPasswordFromCredentialProviders(Configuration.java:1950)
> at org.apache.hadoop.conf.Configuration.getPassword(Configuration.java:1930)
> at
> org.apache.hadoop.fs.s3a.S3AFileSystem.getAWSAccessKeys(S3AFileSystem.java:366)
> at
> org.apache.hadoop.fs.s3a.S3AFileSystem.getAWSCredentialsProvider(S3AFileSystem.java:415)
> at org.apache.hadoop.fs.s3a.S3AFileSystem.initialize(S3AFileSystem.java:176)
> {quote}
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