Caused by: com.google.protobuf.InvalidProtocolBufferException: Protocol message contained an invalid tag (zero).

        at com.google.protobuf.InvalidProtocolBufferException.invalidTag(InvalidProtocolBufferException.java:89)

        at com.google.protobuf.CodedInputStream.readTag(CodedInputStream.java:108)

        at org.apache.hadoop.ipc.protobuf.RpcHeaderProtos$RpcResponseHeaderProto.<init>(RpcHeaderProtos.java:1398)

        at org.apache.hadoop.ipc.protobuf.RpcHeaderProtos$RpcResponseHeaderProto.<init>(RpcHeaderProtos.java:1362)

        at org.apache.hadoop.ipc.protobuf.RpcHeaderProtos$RpcResponseHeaderProto$1.parsePartialFrom(RpcHeaderProtos.java:1492)

        at org.apache.hadoop.ipc.protobuf.RpcHeaderProtos$RpcResponseHeaderProto$1.parsePartialFrom(RpcHeaderProtos.java:1487)

        at com.google.protobuf.AbstractParser.parsePartialFrom(AbstractParser.java:200)

        at com.google.protobuf.AbstractParser.parsePartialDelimitedFrom(AbstractParser.java:241)

        at com.google.protobuf.AbstractParser.parseDelimitedFrom(AbstractParser.java:253)

        at com.google.protobuf.AbstractParser.parseDelimitedFrom(AbstractParser.java:259)

        at com.google.protobuf.AbstractParser.parseDelimitedFrom(AbstractParser.java:49)

        at org.apache.hadoop.ipc.protobuf.RpcHeaderProtos$RpcResponseHeaderProto.parseDelimitedFrom(RpcHeaderProtos.java:2364)

        at org.apache.hadoop.ipc.Client$Connection.receiveRpcResponse(Client.java:996)

        at org.apache.hadoop.ipc.Client$Connection.run(Client.java:891)

ERROR - 2014-05-21 14:20:31.700; org.apache.solr.common.SolrException; null:org.apache.solr.common.SolrException: Unable to create core: opgroup

 

 

这个异常是因为solr和hadoop使用google的序列化包protobuf-java-2.X.0a.jar版本不一致导致的，solr这边的是protobuf-java-2.5.0a.jar，目录在：shard10/solr-webapp/webapp/WEB-INF/lib；而hadoop用的版本是protobuf-java-2.4.0a.jar 目录在：hadoop-2.0.6-solr/share/hadoop/hdfs/lib 二者保持一致即可。