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https://issues.apache.org/jira/browse/HDDS-1431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16815990#comment-16815990
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Anu Engineer commented on HDDS-1431:
------------------------------------
[~elek] FYI.
> Linkage error thrown if ozone-fs-legacy jar is on the classpath
> ---------------------------------------------------------------
>
> Key: HDDS-1431
> URL: https://issues.apache.org/jira/browse/HDDS-1431
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: Ozone Filesystem
> Affects Versions: 0.5.0
> Reporter: Siddharth Wagle
> Priority: Major
>
> With hadoop-ozone-filesystem-lib-legacy-0.5.0-SNAPSHOT.jar on the classpath
> along with current jar results in classloader throwing an error on fs write
> operation as below:
> {code}
> 2019-04-11 16:06:54,127 ERROR [OzoneClientAdapterFactory] Can't initialize
> the ozoneClientAdapter
> java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> at
> org.apache.hadoop.fs.ozone.OzoneClientAdapterFactory.lambda$createAdapter$1(OzoneClientAdapterFactory.java:66)
> at
> org.apache.hadoop.fs.ozone.OzoneClientAdapterFactory.createAdapter(OzoneClientAdapterFactory.java:116)
> at
> org.apache.hadoop.fs.ozone.OzoneClientAdapterFactory.createAdapter(OzoneClientAdapterFactory.java:62)
> at
> org.apache.hadoop.fs.ozone.OzoneFileSystem.createAdapter(OzoneFileSystem.java:92)
> at
> org.apache.hadoop.fs.ozone.BasicOzoneFileSystem.initialize(BasicOzoneFileSystem.java:146)
> at
> org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:3303)
> at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:124)
> at
> org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:3352)
> at
> org.apache.hadoop.fs.FileSystem$Cache.getUnique(FileSystem.java:3326)
> at org.apache.hadoop.fs.FileSystem.newInstance(FileSystem.java:532)
> at org.notmysock.repl.Works$CopyWorker.run(Works.java:252)
> at org.notmysock.repl.Works$CopyWorker.call(Works.java:287)
> at org.notmysock.repl.Works$CopyWorker.call(Works.java:207)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: java.lang.LinkageError: loader constraint violation: loader
> (instance of org/apache/hadoop/fs/ozone/FilteredClassLoader) previously
> initiated loading for a different t
> ype with name "org/apache/hadoop/crypto/key/KeyProvider"
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
> at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
> at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
> at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> at
> org.apache.hadoop.fs.ozone.FilteredClassLoader.loadClass(FilteredClassLoader.java:72)
> at java.lang.Class.getDeclaredMethods0(Native Method)
> at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
> at java.lang.Class.privateGetPublicMethods(Class.java:2902)
> at java.lang.Class.getMethods(Class.java:1615)
> at sun.misc.ProxyGenerator.generateClassFile(ProxyGenerator.java:451)
> at sun.misc.ProxyGenerator.generateProxyClass(ProxyGenerator.java:339)
> at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:639)
> at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:557)
> at java.lang.reflect.WeakCache$Factory.get(WeakCache.java:230)
> at java.lang.reflect.WeakCache.get(WeakCache.java:127)
> at java.lang.reflect.Proxy.getProxyClass0(Proxy.java:419)
> at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:719)
> at
> org.apache.hadoop.ozone.client.OzoneClientFactory.getClient(OzoneClientFactory.java:264)
> at
> org.apache.hadoop.ozone.client.OzoneClientFactory.getRpcClient(OzoneClientFactory.java:169)
> at
> org.apache.hadoop.fs.ozone.BasicOzoneClientAdapterImpl.<init>(BasicOzoneClientAdapterImpl.java:133)
> at
> org.apache.hadoop.fs.ozone.BasicOzoneClientAdapterImpl.<init>(BasicOzoneClientAdapterImpl.java:97)
> at
> org.apache.hadoop.fs.ozone.BasicOzoneClientAdapterImpl.<init>(BasicOzoneClientAdapterImpl.java:82)
> at
> org.apache.hadoop.fs.ozone.OzoneClientAdapterImpl.<init>(OzoneClientAdapterImpl.java:34)
> ... 21 more
> {code}
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