0
点赞
收藏
分享

微信扫一扫

hbase 协处理器同步elasticsearch

小典典Rikako 2022-04-25 阅读 37
大数据elasticsearchjava

协处理器代码

package com.***.hbase.coprocessors;

import com.***.es.util.ESClient;
import com.***.es.util.ElasticSearchBulkOperator;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.CoprocessorEnvironment;
import org.apache.hadoop.hbase.client.Delete;
import org.apache.hadoop.hbase.client.Durability;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.coprocessor.ObserverContext;
import org.apache.hadoop.hbase.coprocessor.RegionCoprocessor;
import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;
import org.apache.hadoop.hbase.coprocessor.RegionObserver;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.wal.WALEdit;
import org.apache.log4j.Logger;

import java.io.IOException;
import java.util.*;

import static org.elasticsearch.action.support.WriteRequest.RefreshPolicy.IMMEDIATE;

/**
 * 微信用户索引
 * @author pengsannian
 * @date 2022年4月12日 下午3:15:23
 */
public class UserInfoTestSyncEsObserver implements RegionObserver , RegionCoprocessor {

    private static final Logger LOG = Logger.getLogger(UserInfoTestSyncEsObserver.class);

    private String index = "user_info_test";
    private String type = "user_info_testtype";
    @Override
    public Optional<RegionObserver> getRegionObserver() {
        return Optional.of(this);
    }

    @Override
    public void start(CoprocessorEnvironment env) throws IOException {
        ESClient.initEsClient();
        ElasticSearchBulkOperator.init();
        LOG.info("****init start*****");
    }

    @Override
    public void stop(CoprocessorEnvironment env) throws IOException {
        ESClient.closeEsClient();
        ElasticSearchBulkOperator.shutdownScheduEx();
        LOG.info("****end*****");
    }

    @Override
    public void postPut(ObserverContext<RegionCoprocessorEnvironment> e, Put put, WALEdit edit, Durability durability) throws IOException {
        String indexId = new String(put.getRow());
        try {
            NavigableMap<byte[], List<Cell>> familyMap = put.getFamilyCellMap();
            Map<String, Object> json = new HashMap<>();
            for (Map.Entry<byte[], List<Cell>> entry : familyMap.entrySet()) {
                for (Cell cell : entry.getValue()) {
                    String key = Bytes.toString(CellUtil.cloneQualifier(cell));
                    String value = Bytes.toString(CellUtil.cloneValue(cell));
                    json.put(key, value);
                }
            }
            ElasticSearchBulkOperator.addUpdateBuilderToBulk(ESClient.client.prepareUpdate(index,type, indexId).setDocAsUpsert(true).setDoc(json));//.setRefreshPolicy(IMMEDIATE)
        } catch (Exception ex) {
            LOG.error("observer put  a doc, index [ " + "user_test" + " ]" + "indexId [" + indexId + "] error : " + ex.getMessage());
        }
    }
    @Override
    public void postDelete(ObserverContext<RegionCoprocessorEnvironment> e, Delete delete, WALEdit edit, Durability durability) throws IOException {
        String indexId = new String(delete.getRow());
        try {
            ElasticSearchBulkOperator.addDeleteBuilderToBulk(ESClient.client.prepareDelete(index,type, indexId));
            LOG.info("**** postDelete success*****");
        } catch (Exception ex) {
            LOG.error(ex);
            LOG.error("observer delete  a doc, index [ " + "user_test" + " ]" + "indexId [" + indexId + "] error : " + ex.getMessage());

        }
    }
}

依赖

    <properties>
        <hadoop.version>3.0.0</hadoop.version>
        <hbase.version>2.0.0</hbase.version>
        <elasticsearch.version>6.3.0</elasticsearch.version>
        <hutool.version>5.3.10</hutool.version>
    </properties>
    
    <dependencies>
        <dependency>
            <groupId>org.apache.hbase</groupId>
            <artifactId>hbase-server</artifactId>
            <version>${hbase.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>io.netty</groupId>
                    <artifactId>netty-all</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-mapreduce-client-core</artifactId>
            <version>${hadoop.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-common</artifactId>
            <version>${hadoop.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.apache.htrace</groupId>
                    <artifactId>htrace-core</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.elasticsearch</groupId>
            <artifactId>elasticsearch</artifactId>
            <version>${elasticsearch.version}</version>
        </dependency>
        <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>transport</artifactId>
            <version>${elasticsearch.version}</version>
        </dependency>
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>${hutool.version}</version>
        </dependency>
    </dependencies>

ES客户端代码

package com.***.es.util;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.elasticsearch.action.bulk.BulkRequestBuilder;
import org.elasticsearch.action.bulk.BulkResponse;
import org.elasticsearch.action.delete.DeleteRequestBuilder;
import org.elasticsearch.action.support.WriteRequest;
import org.elasticsearch.action.update.UpdateRequestBuilder;

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;


public class ElasticSearchBulkOperator {

    private static final Log LOG = LogFactory.getLog(ElasticSearchBulkOperator.class);

    private static final int MAX_BULK_COUNT = 10000;

    private static BulkRequestBuilder bulkRequestBuilder = null;

    private static final Lock commitLock = new ReentrantLock();

    private static ScheduledExecutorService scheduledExecutorService = null;

    static {
        init();
    }

    public static void init() {
        // 初始化  bulkRequestBuilder
        bulkRequestBuilder = ESClient.client.prepareBulk();
        bulkRequestBuilder.setRefreshPolicy(WriteRequest.RefreshPolicy.IMMEDIATE);

        // 初始化线程池大小为1
        scheduledExecutorService = Executors.newScheduledThreadPool(1);

        //创建一个Runnable对象，提交待写入的数据，并使用commitLock锁保证线程安全
        final Runnable beeper = () -> {
            commitLock.lock();
            try {
                LOG.info("Before submission bulkRequest size : " +bulkRequestBuilder.numberOfActions());
                //提交数据至es
                bulkRequest(0);
                LOG.info("After submission bulkRequest size : " +bulkRequestBuilder.numberOfActions());
            } catch (Exception ex) {
                System.out.println(ex.getMessage());
            } finally {
                commitLock.unlock();
            }
        };
        //初始化延迟10s执行 runnable方法，后期每隔30s执行一次
        scheduledExecutorService.scheduleAtFixedRate(beeper, 10, 30, TimeUnit.SECONDS);
    }

    public static void shutdownScheduEx() {
        if (null != scheduledExecutorService && !scheduledExecutorService.isShutdown()) {
            scheduledExecutorService.shutdown();
        }
    }

    private static void bulkRequest(int threshold) {
        if (bulkRequestBuilder.numberOfActions() > threshold) {
            BulkResponse bulkItemResponse = bulkRequestBuilder.execute().actionGet();
            if (!bulkItemResponse.hasFailures()) {
                int beforeCount = bulkRequestBuilder.numberOfActions();
                bulkRequestBuilder = ESClient.client.prepareBulk();
                LOG.info("提交成功,提交前"+beforeCount+"\t提交后:"+bulkRequestBuilder.numberOfActions());
            }else {
                LOG.error("异常1,待提交的数量为："+bulkRequestBuilder.numberOfActions());
                LOG.error("异常信息:"+bulkItemResponse.buildFailureMessage());
                LOG.error("异常2,待提交的数量为："+bulkRequestBuilder.numberOfActions());
            }
        }
    }

    /**
     * add update builder to bulk
     * use commitLock to protected bulk as thread-save
     * @param builder
     */
    public static void addUpdateBuilderToBulk(UpdateRequestBuilder builder) {
        commitLock.lock();
        try {
            bulkRequestBuilder.add(builder);
            bulkRequest(MAX_BULK_COUNT);
        } catch (Exception ex) {
            LOG.error(" update Bulk index error : " + ex.getMessage() + "\t" +ex.toString());
            ex.printStackTrace();
        } finally {
            commitLock.unlock();
        }
    }

    /**
     * add delete builder to bulk
     * use commitLock to protected bulk as thread-save
     *
     * @param builder
     */
    public static void addDeleteBuilderToBulk(DeleteRequestBuilder builder) {
        commitLock.lock();
        try {
            bulkRequestBuilder.add(builder);
            bulkRequest(MAX_BULK_COUNT);
        } catch (Exception ex) {
            LOG.error(" delete Bulk " + "gejx_test" + " index error : " + ex.getMessage());
        } finally {
            commitLock.unlock();
        }
    }
}

package com.***.es.util;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.elasticsearch.client.Client;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.TransportAddress;
import org.elasticsearch.transport.client.PreBuiltTransportClient;

import java.net.InetAddress;
import java.net.UnknownHostException;

public class ESClient {
    public static Client client;

    private static final Log log = LogFactory.getLog(ESClient.class);
    /**
     * init ES client
     */
    public static void initEsClient() throws UnknownHostException {
        log.info("初始化es连接开始");
        System.setProperty("es.set.netty.runtime.available.processors", "false");
        Settings esSettings = Settings.builder()
                .put("cluster.name", "log_cluster")//设置ES实例的名称
                .put("client.transport.sniff", true)
                .build();
        client = new  PreBuiltTransportClient(esSettings)
                .addTransportAddress(new TransportAddress(InetAddress.getByName("ip"), 9300))
                .addTransportAddress(new TransportAddress(InetAddress.getByName("ip"), 9300))
                .addTransportAddress(new TransportAddress(InetAddress.getByName("ip"), 9300))
        ;
        log.info("初始化es连接完成");
    }

    /**
     * Close ES client
     */
    public static void closeEsClient() {
        client.close();
        log.info("es连接关闭");
    }
}
举报

相关推荐

(九)Hbase协处理器

数据处理数据自定义Hbase数据库

HBase的协处理器（Coprocessor）、HBase如何使用二级索引、observer协处理器、 endpoint协处理器、Hbase 协处理器加载方式

hbasebig data大数据

HBase协处理器实战

apachehadoopjava

HBase协处理器及实例

Hbasehadoopapachejava

PRU协处理器

通信协议数据系统资源物联网yyds干货盘点

hbase 协处理器全局监控put、delete、create操作记录

hbasebig data大数据

ARM协处理器介绍

java数据库pythonlinux操作系统虚拟化云计算

ARM协处理器指令

linuxarm开发运维

hbase协处理器 需要在花时间看 暂时标记下

大数据HarmonyOS后端开发

Hbase高阶知识：HBase的协处理器(Coprocessor)原理、使用实例、高级技巧和案例分析

phpandroid开发语言
0 条评论