HBase: regionserver.RegionCoproc

执行Observer时报错

ERROR [RS_OPEN_REGION-bdas02:16020-2] regionserver.RegionCoprocessorHost: Failed to load coprocessor com.jusfoun.data.DataSyncObserver
java.lang.NoSuchMethodError: com.google.common.util.concurrent.MoreExecutors.directExecutor()Ljava/util/concurrent/Executor;
        at org.elasticsearch.threadpool.ThreadPool.<clinit>(ThreadPool.java:190)
        at org.elasticsearch.client.transport.TransportClient$Builder.build(TransportClient.java:131)
        at com.jusfoun.data.MyTransportClient.<clinit>(MyTransportClient.java:42)
        at com.jusfoun.data.DataSyncObserver.start(DataSyncObserver.java:62)
        at org.apache.hadoop.hbase.coprocessor.CoprocessorHost$Environment.startup(CoprocessorHost.java:414)
        at org.apache.hadoop.hbase.coprocessor.CoprocessorHost.loadInstance(CoprocessorHost.java:255)

原因：

guava版本冲突，es2.3.5依赖的guava18.0和hbase1.2.2所依赖的guava版本冲突。

解决：

<dependency>  <groupId>org.apache.hbase</groupId>  <artifactId>hbase-server</artifactId>  <version>1.2.2</version>  <exclusions>    <exclusion>      <groupId>com.google.guava</groupId>      <artifactId>guava</artifactId>    </exclusion>  </exclusions></dependency>