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https://issues.apache.org/jira/browse/HBASE-10172?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack resolved HBASE-10172.
---------------------------
Resolution: Won't Fix
What [~himan...@cloudera.com] says. Check your protobuf versions in your
classpath. It looks like the first pb lib encountered is not 2.5.x as we
expect (perhaps you have old pb lib still in your cp?)
> hbase upgrade -check error
> --------------------------
>
> Key: HBASE-10172
> URL: https://issues.apache.org/jira/browse/HBASE-10172
> Project: HBase
> Issue Type: Bug
> Reporter: wang xiyi
>
> Hi, I want to upgrade hbase from 0.94 to 0.96. According to
> http://hbase.apache.org/book/upgrade0.96.html, I encountered a problem as
> follows:
> {code}
> Exception in thread "main" java.lang.UnsupportedOperationException: This is
> supposed to be overridden by subclasses.
> at
> com.google.protobuf.GeneratedMessage.getUnknownFields(GeneratedMessage.java:180)
> at
> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$GetListingRequestProto.getSerializedSize(ClientNamenodeProtocolProtos.java:18005)
> .....
> {code}
> hadoop version: hadoop-2.0.0-cdh4.2.1
> hbase version:hbase-0.94.0-cdh4.2.1
> Thanks~
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