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https://issues.apache.org/jira/browse/HBASE-10494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13909214#comment-13909214
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Yong Zhang commented on HBASE-10494:
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The maven for HBase 0.94.16 had the same problem. It broken in the same
ClassNotFoundException. I changed the version to 0.94.15 and it worked fine.
> hadoop2 class reference in Maven Central's hbase-client-0.96.1.1-hadoop1
> ------------------------------------------------------------------------
>
> Key: HBASE-10494
> URL: https://issues.apache.org/jira/browse/HBASE-10494
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.96.1.1
> Environment: Only affects jar on Maven Central. Jar in the hadoop1
> tarball download is not affected.
> Reporter: Dan LaRocque
> Priority: Minor
>
> RpcClient$Connection.class as shipped in the hbase-client-0.96.1.1-hadoop1
> jar on Maven Central contains references to
> org.apache.hadoop.net.SocketInputWrapper. I think this class does not exist
> in hadoop1 because a classfile search of central yields hits only on 2.0 and
> 0.23. There may be other references. I only know about this one because it
> was killing my HRegionServer early with this exception:
> {noformat}
> 2014-02-10 20:55:52,021 INFO [M:0;dalarolap:48768] master.ServerManager:
> Waiting for region servers count to settle; currently checked in 0, slept for
> 0 ms, expecting minimum of 1, maximum of 2147483647, timeout of 4500 ms,
> interval of 1500 ms.
> 2014-02-10 20:55:52,066 WARN [RS:0;dalarolap:33703]
> regionserver.HRegionServer: error telling master we are up
> com.google.protobuf.ServiceException: java.lang.NoClassDefFoundError:
> org/apache/hadoop/net/SocketInputWrapper
> at
> org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1670)
> at
> org.apache.hadoop.hbase.ipc.RpcClient$BlockingRpcChannelImplementation.callBlockingMethod(RpcClient.java:1711)
> at
> org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$BlockingStub.regionServerStartup(RegionServerStatusProtos.java:5402)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:1926)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:784)
> at java.lang.Thread.run(Thread.java:744)
> Caused by: java.lang.NoClassDefFoundError:
> org/apache/hadoop/net/SocketInputWrapper
> at
> org.apache.hadoop.hbase.ipc.RpcClient.createConnection(RpcClient.java:348)
> at
> org.apache.hadoop.hbase.ipc.RpcClient.getConnection(RpcClient.java:1522)
> at org.apache.hadoop.hbase.ipc.RpcClient.call(RpcClient.java:1424)
> at
> org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1653)
> ... 5 more
> Caused by: java.lang.ClassNotFoundException:
> org.apache.hadoop.net.SocketInputWrapper
> 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)
> ... 9 more
> {noformat}
> I first stumbled over this while developing an app managed by Maven that
> depends on hbase-client, but then reproduced it by extracting the hadoop1
> tarball and replacing the client jar with the same-named one from Maven
> Central.
> I think this is not the same as HBASE-7269, although the stacktrace is
> similar.
> Here's a disassembler grep on the Maven Central copy showing some references:
> {noformat}
> # From the root of an extracted hbase-client-0.96.1.1-hadoop1 jar downloaded
> from Maven Central
> client-maven$ javap -verbose
> 'org/apache/hadoop/hbase/ipc/RpcClient$Connection.class' | grep
> SocketInputWrapper
> #198 = Methodref #744.#818 //
> org/apache/hadoop/net/NetUtils.getInputStream:(Ljava/net/Socket;)Lorg/apache/hadoop/net/SocketInputWrapper;
> #818 = NameAndType #1115:#1159 //
> getInputStream:(Ljava/net/Socket;)Lorg/apache/hadoop/net/SocketInputWrapper;
> #1159 = Utf8
> (Ljava/net/Socket;)Lorg/apache/hadoop/net/SocketInputWrapper;
> 180: invokestatic #198 // Method
> org/apache/hadoop/net/NetUtils.getInputStream:(Ljava/net/Socket;)Lorg/apache/hadoop/net/SocketInputWrapper;
> {noformat}
> Here's the same grep on the tarball's copy. No references.
> {noformat}
> # Same as above, but using jar from the download tarball for hadoop1
> client-tarball$ javap -verbose
> 'org/apache/hadoop/hbase/ipc/RpcClient$Connection.class' | grep
> SocketInputWrapper
> client-tarball$
> {noformat}
> What do you think?
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