[
https://issues.apache.org/jira/browse/ORC-596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Dongjoon Hyun closed ORC-596.
-----------------------------
Resolution: Duplicate
> ClassCastException when using EMR Hadoop KMS with ORC encryption
> ----------------------------------------------------------------
>
> Key: ORC-596
> URL: https://issues.apache.org/jira/browse/ORC-596
> Project: ORC
> Issue Type: Bug
> Components: Java
> Affects Versions: 1.6.2
> Environment: emr-5.29.0
> Hadoop KMS 2.8.5
> Reporter: Matt Czyz
> Priority: Major
> Attachments: WriteOrc.java, castexception.patch
>
>
> I am getting cast exception from Writer when using encryption and EMR Hadoop
> KMS to manage keys.
> {code:java}
> Exception in thread "main" java.lang.ClassCastException:
> org.apache.hadoop.crypto.key.kms.KMSClientProvider cannot be cast to
> org.apache.hadoop.crypto.key.KeyProviderCryptoExtension
> at
> org.apache.orc.impl.HadoopShimsPre2_7$KeyProviderImpl.createLocalKey(HadoopShimsPre2_7.java:168)
> at org.apache.orc.impl.WriterImpl.visitTypeTree(WriterImpl.java:894)
> at org.apache.orc.impl.WriterImpl.visitTypeTree(WriterImpl.java:904)
> at org.apache.orc.impl.WriterImpl.setupEncryption(WriterImpl.java:927)
> at org.apache.orc.impl.WriterImpl.<init>(WriterImpl.java:160)
> at org.apache.orc.OrcFile.createWriter(OrcFile.java:971)
> {code}
> Changing _(KeyProviderCryptoExtension)this.provider_ to
> _(KeyProviderCryptoExtension.CryptoExtension)this.provider_ at
> HadoopShimsPre2_7.java:168 and :188 fixes this for me.
> Code to replicate attached - requires to point to a valid Hadoop KMS
> containing "test_key" key.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
