Hbase1.2数据同步到ElasticSearch2.x

最近公司业务调整 需要把原有的数据从关系型数据库调整到Hbase中，奈何Hbase做查询性能并不是那么优秀 所以准备集成Es做二级索引

具体代码在我的博客

在网上找了一大堆的资料 全部都是ElasticSearch1.X的 到2.X的版本基本上没有资料。自己折腾了好几天 现在终于整合成功。

好了 不多说 上代码 代码是基于Hbase的

BaseRegionObserver写的，我这里重写了

postPut的方法和start方法 由于只是一个简单的Demo 还有很多方便没有考虑 所以自己供参考用，整个项目也只有这一个类，需要删除和更新也同步的同学请自己完善类 的方法。 

 

import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.CoprocessorEnvironment;
import org.apache.hadoop.hbase.client.Durability;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.coprocessor.BaseRegionObserver;
import org.apache.hadoop.hbase.coprocessor.ObserverContext;
import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;
import org.apache.hadoop.hbase.regionserver.wal.WALEdit;
import org.apache.hadoop.hbase.util.Bytes;
import org.elasticsearch.client.Client;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.InetSocketTransportAddress;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.plugin.deletebyquery.DeleteByQueryPlugin;
import java.io.IOException;
import java.net.InetAddress;
import java.util.*;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class HabseElasticSearchObServer extends BaseRegionObserver {

    private static final Logger logger = LoggerFactory.getLogger(HabseElasticSearchObServer.class);

    private Client client;
    private static final String CLUSTER_NAME = "estest"; //实例名称
    private static final String IP = "192.168.11.27";//Host地址
    private static final int PORT = 9300;  //端口

    @Override
    public void start(CoprocessorEnvironment e) throws IOException {
        Settings settings = Settings.settingsBuilder().put("cluster.name",CLUSTER_NAME).put("client.transport.sniff", true).build();
        client = TransportClient.builder().settings(settings).addPlugin(DeleteByQueryPlugin.class).build()
                .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(IP), PORT));
    }



    @Override
    public void postPut(ObserverContext e, Put put, WALEdit edit, Durability durability) throws IOException {
        super.postPut(e, put, edit, durability);
        try {
            String tableName=Bytes.toString(e.getEnvironment().getRegionInfo().getTable().getName());
            ArrayList editCells=edit.getCells();
            String rowKey=null,family=null,colum=null,value=null;
            Map familyMap=new HashMap();
            for(Cell cell:editCells){
                rowKey=Bytes.toString(cell.getRow());
                family=Bytes.toString(cell.getFamily());
                value=Bytes.toString(cell.getValue());
                colum=Bytes.toString(cell.getQualifier());
                familyMap.put(colum,value);
            }
            client.prepareIndex("auth", tableName, rowKey).setSource(XContentFactory.jsonBuilder()
                    .startObject()
                    .field(family, familyMap)
                    .endObject()).get();
        } catch (Exception ex){
            logger.error("------------sync hbase data to es error " + ex );
        }
    }
}

PS

如果没有安装delete-by-query的插件则不需要添加addPlugin(DeleteByQueryPlugin.class)这句话请自行删除

client = TransportClient.builder().settings(settings).addPlugin(DeleteByQueryPlugin.class).build() .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(IP), PORT));

 

 

 

 

POM的文件如下 

delete-by-query的引用看具体情况 是用来做Es的查询删除用的，但是前二个是必须的。

 

 

        
            org.apache.hbase
            hbase-server
            1.2.3
        
        
            org.elasticsearch
            elasticsearch
            2.4.0
        
        
            org.elasticsearch.plugin
            delete-by-query
            2.4.0