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From Pablo San José (JIRA) <j...@apache.org>
Subject [jira] [Created] (HADOOP-15412) Hadoop KMS with HDFS keystore: No FileSystem for scheme "hdfs"
Date Wed, 25 Apr 2018 08:04:00 GMT
Pablo San José created HADOOP-15412:
---------------------------------------

             Summary: Hadoop KMS with HDFS keystore: No FileSystem for scheme "hdfs"
                 Key: HADOOP-15412
                 URL: https://issues.apache.org/jira/browse/HADOOP-15412
             Project: Hadoop Common
          Issue Type: Bug
          Components: kms
    Affects Versions: 2.9.0, 2.7.2
         Environment: RHEL 7.3

Hadoop 2.7.2 and 2.7.9

 
            Reporter: Pablo San José


I have been trying to configure the Hadoop kms to use hdfs as the key provider but it seems
that this functionality is failing. 

I followed the Hadoop docs for that matter, and I added the following field to my kms-site.xml:
{code:java}
<property> 
   <name>hadoop.kms.key.provider.uri</name>
   <value>jceks://hdfs@nn1.example.com/kms/test.jceks</value> 
   <description> 
      URI of the backing KeyProvider for the KMS. 
   </description> 
</property>{code}
That route exists in hdfs, and I expect the kms to create the file test.jceks for its keystore.
However, the kms failed to start due to this error:
{code:java}
ERROR: Hadoop KMS could not be started REASON: org.apache.hadoop.fs.UnsupportedFileSystemException:
No FileSystem for scheme "hdfs" Stacktrace: ---------------------------------------------------
org.apache.hadoop.fs.UnsupportedFileSystemException: No FileSystem for scheme "hdfs" at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:3220)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:3240) at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:121)
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:3291) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:3259)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:470) at org.apache.hadoop.fs.Path.getFileSystem(Path.java:356)
at org.apache.hadoop.crypto.key.JavaKeyStoreProvider.<init>(JavaKeyStoreProvider.java:132)
at org.apache.hadoop.crypto.key.JavaKeyStoreProvider.<init>(JavaKeyStoreProvider.java:88)
at org.apache.hadoop.crypto.key.JavaKeyStoreProvider$Factory.createProvider(JavaKeyStoreProvider.java:660)
at org.apache.hadoop.crypto.key.KeyProviderFactory.get(KeyProviderFactory.java:96) at org.apache.hadoop.crypto.key.kms.server.KMSWebApp.contextInitialized(KMSWebApp.java:187)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4276) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4779)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:803) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:780)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:583) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1080)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1003) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:507)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1322) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:325)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1069) at org.apache.catalina.core.StandardHost.start(StandardHost.java:822)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1061) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525) at org.apache.catalina.core.StandardServer.start(StandardServer.java:761)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414){code}
 
For what I could manage to understand, it seems that this error is because there is no FileSystem
implemented for HDFS. I have looked up this error but it always refers to a lack of jars for
the hdfs-client when upgrading, which I have not done (it is a fresh installation). I have
tested it using Hadoop 2.7.2 and 2.9.0

Thank you in advance.



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