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https://issues.apache.org/jira/browse/PIG-4494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14395866#comment-14395866
]
Rohini Palaniswamy commented on PIG-4494:
-----------------------------------------
<dependency org="org.htrace" name="htrace-core" rev="3.0.4"
conf="hadoop23->master"/>
<dependency org="org.cloudera.htrace" name="htrace-core" rev="2.00"
conf="hadoop23->master">
<dependency org="org.apache.htrace" name="htrace-core" rev="${htrace.version}"
conf="hbase95->master">
If the first one is required by hadoop 2.6 and third one by hbase, what is the
second one required for? If it is not used, we should remove it even though all
three package names are different and will not conflict.
> Pig's htrace version conflicts with that of hadoop 2.6.0
> --------------------------------------------------------
>
> Key: PIG-4494
> URL: https://issues.apache.org/jira/browse/PIG-4494
> Project: Pig
> Issue Type: Bug
> Reporter: Jeff Zhang
> Assignee: Daniel Dai
> Fix For: 0.15.0
>
> Attachments: PIG-4494-1.patch
>
>
> Pig is using htrace-2.0 while hadoop-2.6.0 is using 3.0.4. htrace 3.04 has
> refactor its package layout which is total incompatible with htrace 2.0
> {code}
> Exception in thread "main" java.lang.NoClassDefFoundError: org/htrace/Trace
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:214)
> at com.sun.proxy.$Proxy9.getFileInfo(Unknown Source)
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:752)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
> at com.sun.proxy.$Proxy10.getFileInfo(Unknown Source)
> at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1988)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$18.doCall(DistributedFileSystem.java:1118)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$18.doCall(DistributedFileSystem.java:1114)
> at
> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1114)
> at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1400)
> at
> org.apache.pig.backend.hadoop.datastorage.HDataStorage.isContainer(HDataStorage.java:200)
> at
> org.apache.pig.backend.hadoop.datastorage.HDataStorage.asElement(HDataStorage.java:128)
> at
> org.apache.pig.backend.hadoop.datastorage.HDataStorage.asElement(HDataStorage.java:138)
> at
> org.apache.pig.parser.QueryParserUtils.getCurrentDir(QueryParserUtils.java:91)
> at
> org.apache.pig.parser.LogicalPlanBuilder.buildLoadOp(LogicalPlanBuilder.java:910)
> at
> org.apache.pig.parser.LogicalPlanGenerator.load_clause(LogicalPlanGenerator.java:3569)
> at
> org.apache.pig.parser.LogicalPlanGenerator.op_clause(LogicalPlanGenerator.java:1626)
> at
> org.apache.pig.parser.LogicalPlanGenerator.general_statement(LogicalPlanGenerator.java:1103)
> at
> org.apache.pig.parser.LogicalPlanGenerator.statement(LogicalPlanGenerator.java:561)
> at
> org.apache.pig.parser.LogicalPlanGenerator.query(LogicalPlanGenerator.java:422)
> at
> org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:191)
> at org.apache.pig.PigServer$Graph.parseQuery(PigServer.java:1735)
> at org.apache.pig.PigServer$Graph.access$0(PigServer.java:1722)
> at org.apache.pig.PigServer.parseAndBuild(PigServer.java:387)
> at org.apache.pig.PigServer.executeBatch(PigServer.java:412)
> at org.apache.pig.PigServer.executeBatch(PigServer.java:398)
> at pig.PigExample.main(PigExample.java:59)
> Caused by: java.lang.ClassNotFoundException: org.htrace.Trace
> at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
> ... 33 more
> {code}
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