hbase-0.96.1.1-cdh5.0.0-beta2中BaseRegionObserver对应的coprocessor部署

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1.将开发好的jar包，放到hdfs路径下面hdfs://nameservice1/user/coprocessor/xg/

2.在hbase-site.xml中配置对应的类

  <property>    <name>hbase.coprocessor.region.classes</name>    <value>org.cloud.xigua.coprocessor.Product,org.cloud.xigua.coprocessor.User,org.cloud.xigua.coprocessor.Subject</value>  </property>

这些会在添加coprocessor的时候，通知Configuration读取开始部署

3.部署有两种方法：

3.1常规部署:执行hbase shell脚本

     disable 'xg_product'     alter 'xg_product', METHOD => 'table_att_unset', NAME => 'coprocessor$1'  #如果本来没有就不用这个，这个是用来删除已经有的coprocessor$1的     alter 'xg_product',METHOD => 'table_att','coprocessor'=>'hdfs://nameservice1/user/coprocessor/xg/xg_coprocessor.jar|org.cloud.xigua.coprocessor.Product|1073741823|'     enable 'xg_product'

3.2热部署(java代码部署)

          byte[] HBASE_TABLE_BYTES = "xg_product".getBytes();                    try {               HBaseAdmin admin = new HBaseAdmin(config);               admin.disableTable(HBASE_TABLE_BYTES);                              HTableDescriptor htd = admin.getTableDescriptor(HBASE_TABLE_BYTES);               htd.removeCoprocessor("org.cloud.xigua.coprocessor.Product");               htd.addCoprocessor("org.cloud.xigua.coprocessor.Product",new Path("hdfs://nameservice1/user/coprocessor/xg/xg_coprocessor.jar"),Coprocessor.PRIORITY_USER,null);//               htd.setValue("COPROCESSOR$1", "hdfs://nameservice1/user/coprocessor/xg/xg_coprocessor_0310.jar|org.cloud.xigua.coprocessor.imp.OrderScore|100|");//               htd.setValue("COPROCESSOR$1", "hdfs://nameservice1/user/coprocessor/xg/xg_coprocessor.jar|org.cloud.xigua.coprocessor.Product|1073741823|");                              admin.modifyTable(HBASE_TABLE_BYTES, htd);                              admin.enableTable(HBASE_TABLE_BYTES);//               System.out.println(htd.hasCoprocessor("org.cloud.xigua.coprocessor.Product"));                              admin.close();          } catch (MasterNotRunningException e) {               e.printStackTrace();          } catch (ZooKeeperConnectionException e) {               e.printStackTrace();          } catch (IOException e) {               e.printStackTrace();          }

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