hbase-java-api002(flush)
package api; import java.io.IOException; import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.client.Get;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.util.Bytes; public class FlushEx { public static void main(String[] args) throws IOException {
Configuration cfg = HBaseConfiguration.create(); HTable table = new HTable(cfg,"xyj"); System.out.println("Auto flush"+table.isAutoFlush()); table.setAutoFlush(false); Put put1 =new Put(Bytes.toBytes("row4"));
put1.add(Bytes.toBytes("cf1"),Bytes.toBytes("qual4"),Bytes.toBytes("val4"));
table.put(put1); Put put2 =new Put(Bytes.toBytes("row5"));
put2.add(Bytes.toBytes("cf1"),Bytes.toBytes("qual5"),Bytes.toBytes("val5"));
table.put(put2); Put put3 =new Put(Bytes.toBytes("row6"));
put3.add(Bytes.toBytes("cf1"),Bytes.toBytes("qual6"),Bytes.toBytes("val6"));
table.put(put3); Get get = new Get(Bytes.toBytes("row4"));
Result result1 = table.get(get);
System.out.println("result1-->"+result1); table.flushCommits(); Result result2 = table.get(get);
System.out.println("result2-->"+result2); }
}
//2017-11-25 00:48:50,577 WARN [main] util.NativeCodeLoader (NativeCodeLoader.java:<clinit>(62)) - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
//2017-11-25 00:48:50,666 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:zookeeper.version=3.4.5-1392090, built on 09/30/2012 17:52 GMT
//2017-11-25 00:48:50,667 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:host.name=alamps
//2017-11-25 00:48:50,667 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.version=1.7.0_65
//2017-11-25 00:48:50,667 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.vendor=Oracle Corporation
//2017-11-25 00:48:50,667 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.home=/home/hadoop/jdk1.7.0_65/jre
//2017-11-25 00:48:50,667 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.class.path=/home/hadoop/workspace/HBase/bin:/home/hadoop/hbase-0.96.2/lib/activation-1.1.jar:/home/hadoop/hbase-0.96.2/lib/aopalliance-1.0.jar:/home/hadoop/hbase-0.96.2/lib/asm-3.1.jar:/home/hadoop/hbase-0.96.2/lib/avro-1.7.4.jar:/home/hadoop/hbase-0.96.2/lib/commons-beanutils-1.7.0.jar:/home/hadoop/hbase-0.96.2/lib/commons-beanutils-core-1.8.0.jar:/home/hadoop/hbase-0.96.2/lib/commons-cli-1.2.jar:/home/hadoop/hbase-0.96.2/lib/commons-codec-1.7.jar:/home/hadoop/hbase-0.96.2/lib/commons-collections-3.2.1.jar:/home/hadoop/hbase-0.96.2/lib/commons-compress-1.4.1.jar:/home/hadoop/hbase-0.96.2/lib/commons-configuration-1.6.jar:/home/hadoop/hbase-0.96.2/lib/commons-daemon-1.0.13.jar:/home/hadoop/hbase-0.96.2/lib/commons-digester-1.8.jar:/home/hadoop/hbase-0.96.2/lib/commons-el-1.0.jar:/home/hadoop/hbase-0.96.2/lib/commons-httpclient-3.1.jar:/home/hadoop/hbase-0.96.2/lib/commons-io-2.4.jar:/home/hadoop/hbase-0.96.2/lib/commons-lang-2.6.jar:/home/hadoop/hbase-0.96.2/lib/commons-logging-1.1.1.jar:/home/hadoop/hbase-0.96.2/lib/commons-math-2.1.jar:/home/hadoop/hbase-0.96.2/lib/commons-net-3.1.jar:/home/hadoop/hbase-0.96.2/lib/findbugs-annotations-1.3.9-1.jar:/home/hadoop/hbase-0.96.2/lib/gmbal-api-only-3.0.0-b023.jar:/home/hadoop/hbase-0.96.2/lib/grizzly-framework-2.1.2.jar:/home/hadoop/hbase-0.96.2/lib/grizzly-http-2.1.2.jar:/home/hadoop/hbase-0.96.2/lib/grizzly-http-server-2.1.2.jar:/home/hadoop/hbase-0.96.2/lib/grizzly-http-servlet-2.1.2.jar:/home/hadoop/hbase-0.96.2/lib/grizzly-rcm-2.1.2.jar:/home/hadoop/hbase-0.96.2/lib/guava-12.0.1.jar:/home/hadoop/hbase-0.96.2/lib/guice-3.0.jar:/home/hadoop/hbase-0.96.2/lib/guice-servlet-3.0.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-annotations-2.2.0.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-auth-2.2.0.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-client-2.2.0.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-common-2.2.0.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-hdfs-2.2.0.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-hdfs-2.2.0-tests.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-mapreduce-client-app-2.2.0.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-mapreduce-client-common-2.2.0.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-mapreduce-client-core-2.2.0.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-mapreduce-client-jobclient-2.2.0.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-mapreduce-client-jobclient-2.2.0-tests.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-mapreduce-client-shuffle-2.2.0.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-yarn-api-2.2.0.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-yarn-client-2.2.0.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-yarn-common-2.2.0.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-yarn-server-common-2.2.0.jar:/home/hadoop/hbase-0.96.2/lib/hadoop-yarn-server-nodemanager-2.2.0.jar:/home/hadoop/hbase-0.96.2/lib/hamcrest-core-1.3.jar:/home/hadoop/hbase-0.96.2/lib/hbase-client-0.96.2-hadoop2.jar:/home/hadoop/hbase-0.96.2/lib/hbase-common-0.96.2-hadoop2.jar:/home/hadoop/hbase-0.96.2/lib/hbase-common-0.96.2-hadoop2-tests.jar:/home/hadoop/hbase-0.96.2/lib/hbase-examples-0.96.2-hadoop2.jar:/home/hadoop/hbase-0.96.2/lib/hbase-hadoop2-compat-0.96.2-hadoop2.jar:/home/hadoop/hbase-0.96.2/lib/hbase-hadoop-compat-0.96.2-hadoop2.jar:/home/hadoop/hbase-0.96.2/lib/hbase-it-0.96.2-hadoop2.jar:/home/hadoop/hbase-0.96.2/lib/hbase-it-0.96.2-hadoop2-tests.jar:/home/hadoop/hbase-0.96.2/lib/hbase-prefix-tree-0.96.2-hadoop2.jar:/home/hadoop/hbase-0.96.2/lib/hbase-protocol-0.96.2-hadoop2.jar:/home/hadoop/hbase-0.96.2/lib/hbase-server-0.96.2-hadoop2.jar:/home/hadoop/hbase-0.96.2/lib/hbase-server-0.96.2-hadoop2-tests.jar:/home/hadoop/hbase-0.96.2/lib/hbase-shell-0.96.2-hadoop2.jar:/home/hadoop/hbase-0.96.2/lib/hbase-testing-util-0.96.2-hadoop2.jar:/home/hadoop/hbase-0.96.2/lib/hbase-thrift-0.96.2-hadoop2.jar:/home/hadoop/hbase-0.96.2/lib/htrace-core-2.04.jar:/home/hadoop/hbase-0.96.2/lib/httpclient-4.1.3.jar:/home/hadoop/hbase-0.96.2/lib/httpcore-4.1.3.jar:/home/hadoop/hbase-0.96.2/lib/jackson-core-asl-1.8.8.jar:/home/hadoop/hbase-0.96.2/lib/jackson-jaxrs-1.8.8.jar:/home/hadoop/hbase-0.96.2/lib/jackson-mapper-asl-1.8.8.jar:/home/hadoop/hbase-0.96.2/lib/jackson-xc-1.8.8.jar:/home/hadoop/hbase-0.96.2/lib/jamon-runtime-2.3.1.jar:/home/hadoop/hbase-0.96.2/lib/jasper-compiler-5.5.23.jar:/home/hadoop/hbase-0.96.2/lib/jasper-runtime-5.5.23.jar:/home/hadoop/hbase-0.96.2/lib/javax.inject-1.jar:/home/hadoop/hbase-0.96.2/lib/javax.servlet-3.1.jar:/home/hadoop/hbase-0.96.2/lib/javax.servlet-api-3.0.1.jar:/home/hadoop/hbase-0.96.2/lib/jaxb-api-2.2.2.jar:/home/hadoop/hbase-0.96.2/lib/jaxb-impl-2.2.3-1.jar:/home/hadoop/hbase-0.96.2/lib/jersey-client-1.9.jar:/home/hadoop/hbase-0.96.2/lib/jersey-core-1.8.jar:/home/hadoop/hbase-0.96.2/lib/jersey-grizzly2-1.9.jar:/home/hadoop/hbase-0.96.2/lib/jersey-guice-1.9.jar:/home/hadoop/hbase-0.96.2/lib/jersey-json-1.8.jar:/home/hadoop/hbase-0.96.2/lib/jersey-server-1.8.jar:/home/hadoop/hbase-0.96.2/lib/jersey-test-framework-core-1.9.jar:/home/hadoop/hbase-0.96.2/lib/jersey-test-framework-grizzly2-1.9.jar:/home/hadoop/hbase-0.96.2/lib/jets3t-0.6.1.jar:/home/hadoop/hbase-0.96.2/lib/jettison-1.3.1.jar:/home/hadoop/hbase-0.96.2/lib/jetty-6.1.26.jar:/home/hadoop/hbase-0.96.2/lib/jetty-sslengine-6.1.26.jar:/home/hadoop/hbase-0.96.2/lib/jetty-util-6.1.26.jar:/home/hadoop/hbase-0.96.2/lib/jruby-complete-1.6.8.jar:/home/hadoop/hbase-0.96.2/lib/jsch-0.1.42.jar:/home/hadoop/hbase-0.96.2/lib/jsp-2.1-6.1.14.jar:/home/hadoop/hbase-0.96.2/lib/jsp-api-2.1-6.1.14.jar:/home/hadoop/hbase-0.96.2/lib/jsr305-1.3.9.jar:/home/hadoop/hbase-0.96.2/lib/junit-4.11.jar:/home/hadoop/hbase-0.96.2/lib/libthrift-0.9.0.jar:/home/hadoop/hbase-0.96.2/lib/log4j-1.2.17.jar:/home/hadoop/hbase-0.96.2/lib/management-api-3.0.0-b012.jar:/home/hadoop/hbase-0.96.2/lib/metrics-core-2.1.2.jar:/home/hadoop/hbase-0.96.2/lib/netty-3.6.6.Final.jar:/home/hadoop/hbase-0.96.2/lib/paranamer-2.3.jar:/home/hadoop/hbase-0.96.2/lib/protobuf-java-2.5.0.jar:/home/hadoop/hbase-0.96.2/lib/servlet-api-2.5-6.1.14.jar:/home/hadoop/hbase-0.96.2/lib/slf4j-api-1.6.4.jar:/home/hadoop/hbase-0.96.2/lib/slf4j-log4j12-1.6.4.jar:/home/hadoop/hbase-0.96.2/lib/snappy-java-1.0.4.1.jar:/home/hadoop/hbase-0.96.2/lib/xmlenc-0.52.jar:/home/hadoop/hbase-0.96.2/lib/xz-1.0.jar:/home/hadoop/hbase-0.96.2/lib/zookeeper-3.4.5.jar
//2017-11-25 00:48:50,668 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.library.path=/home/hadoop/jdk1.7.0_65/jre/lib/i386/client:/home/hadoop/jdk1.7.0_65/jre/lib/i386:/home/hadoop/jdk1.7.0_65/jre/../lib/i386:/home/hadoop/app/jdk1.8.0_144/jre/lib/i386/client:/home/hadoop/app/jdk1.8.0_144/jre/lib/i386::/usr/java/packages/lib/i386:/lib:/usr/lib
//2017-11-25 00:48:50,670 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.io.tmpdir=/tmp
//2017-11-25 00:48:50,670 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.compiler=<NA>
//2017-11-25 00:48:50,670 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:os.name=Linux
//2017-11-25 00:48:50,670 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:os.arch=i386
//2017-11-25 00:48:50,670 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:os.version=2.6.32-358.el6.i686
//2017-11-25 00:48:50,670 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:user.name=hadoop
//2017-11-25 00:48:50,670 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:user.home=/home/hadoop
//2017-11-25 00:48:50,671 INFO [main] zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:user.dir=/home/hadoop/workspace/HBase
//2017-11-25 00:48:50,672 INFO [main] zookeeper.ZooKeeper (ZooKeeper.java:<init>(438)) - Initiating client connection, connectString=localhost:2181 sessionTimeout=90000 watcher=hconnection-0x76a85e, quorum=localhost:2181, baseZNode=/hbase
//2017-11-25 00:48:50,717 INFO [main-SendThread(localhost:2181)] zookeeper.ClientCnxn (ClientCnxn.java:logStartConnect(966)) - Opening socket connection to server localhost/0:0:0:0:0:0:0:1:2181. Will not attempt to authenticate using SASL (unknown error)
//2017-11-25 00:48:50,719 INFO [main] zookeeper.RecoverableZooKeeper (RecoverableZooKeeper.java:<init>(120)) - Process identifier=hconnection-0x76a85e connecting to ZooKeeper ensemble=localhost:2181
//2017-11-25 00:48:50,731 INFO [main-SendThread(localhost:2181)] zookeeper.ClientCnxn (ClientCnxn.java:primeConnection(849)) - Socket connection established to localhost/0:0:0:0:0:0:0:1:2181, initiating session
//2017-11-25 00:48:50,738 INFO [main-SendThread(localhost:2181)] zookeeper.ClientCnxn (ClientCnxn.java:onConnected(1207)) - Session establishment complete on server localhost/0:0:0:0:0:0:0:1:2181, sessionid = 0x15ff20c769a001e, negotiated timeout = 90000
//Auto flushtrue
//result1-->keyvalues=NONE
//result2-->keyvalues={row4/cf1:qual4/1511599731428/Put/vlen=4/mvcc=0}
hbase-java-api002(flush)的更多相关文章
- hbase实践之flush and compaction
本文主要涉及flush流程,探讨flush流程过程中引入的问题并阐述2种解决策略,最后简要说明Flush执行策略. 对于Compaction,本文主要探讨Compaction要解决的本质问题以及由Co ...
- Hbase Java API详解
HBase是Hadoop的数据库,能够对大数据提供随机.实时读写访问.他是开源的,分布式的,多版本的,面向列的,存储模型. 在讲解的时候我首先给大家讲解一下HBase的整体结构,如下图: HBase ...
- HBase Java API使用（一）
前言 1. 创建表:(由master完成) 首先需要获取master地址(master启动时会将地址告诉zookeeper)因而客户端首先会访问zookeeper获取master的地址 client和 ...
- hbase java api样例（版本1.3.1，新API）
hbase版本:1.3.1 目的:HBase新API的使用方法. 尝试并验证了如下几种java api的使用方法. 1.创建表 2.创建表(预分区) 3.单条插入 4.批量插入 5.批量插入(客户端缓 ...
- HBase Java简单示例
Hbase采用Java实现,原生客户端也是Java实现,其他语言需要通过thritf接口服务间接访问Hbase的数据. Hbase作为大数据存储数据库,其写能力非常强,加上Hbase本身就脱胎于Had ...
- HBase Java API类介绍
几个相关类与HBase数据模型之间的对应关系 java类 HBase数据模型 HBaseAdmin 数据库(DataBase) HBaseConfiguration HTable 表(Table) H ...
- HBase Java简单示例--转载
Hbase采用Java实现,原生客户端也是Java实现,其他语言需要通过thritf接口服务间接访问Hbase的数据. Hbase作为大数据存储数据库,其写能力非常强,加上Hbase本身就脱胎于Had ...
- Hbase Java API程序设计步骤
http://www.it165.net/admin/html/201407/3390.html 步骤1:创建一个Configuration对象 包含了客户端链接Hbase服务所需的全部信息: zoo ...
- 大数据学习系列之三 ----- HBase Java Api 图文详解
版权声明: 作者:虚无境 博客园出处:http://www.cnblogs.com/xuwujing CSDN出处:http://blog.csdn.net/qazwsxpcm 个人博客出处:http ...
- HBase总结（十一）hbase Java API 介绍及使用示例
几个相关类与HBase数据模型之间的对应关系 java类 HBase数据模型 HBaseAdmin 数据库(DataBase) HBaseConfiguration HTable 表(Table) H ...
随机推荐
- 变长编码表 ASCII代码等长编码
小结: 1.ASCII编码.GBK编码不是变长编码: 2.数据压缩: 示例: aabacdab → 00100110111010 → |0|0|10|0|110|111|0|10| → aabacda ...
- easyUI表格多表头实现
项目中要实现表格多表头,结合网上的例子自己实现了一个,包含frozenColumns情况. 一,通过标签创建 效果: <table id="schoolGrid" class ...
- 【Python爬虫】Requests库的基本使用
Requests库的基本使用 阅读目录 基本的GET请求 带参数的GET请求 解析Json 获取二进制数据 添加headers 基本的POST请求 response属性 文件上传 获取cookie 会 ...
- Matlab中导入文本文件中的数据 矩阵合并 以及C++中删除文件操作
今天用到了Matlab读取文本文件中按照一定格式存储好的数据,然后进行后续的分析计算等,因此涉及到Matlab的文件读取,记录在这里,供以后查阅: fid = fopen('train.set', ' ...
- scss是什么？在vue.cli中的安装使用步骤是？有哪几大特性？
css的预编译: 使用步骤: 第一步:用npm下三个loader(sass-loader.css-loader.node-sass): 第二步:在build目录找到webpack.base.confi ...
- 程序------>数据结构
一程序概念: 1.对身边的任何一个事物进行认知和分类,从而得到一些信息: 2.在得到的信息基础之上建立了概念模型: 3.根据概念模型将我们生活中的实际问题转换成计算机能理解的形式: 4.用户通过人机交 ...
- 如何让帝国CMS7.2搜索模板支持动态标签调用
帝国cms站内搜索一般不支持动态标签调用,如果要调用如何实现呢?修改两个地方就可以实现了.打开 /e/search/result/index.php 文件,找到(文件改了,不会调用也是徒劳!看看这个帝 ...
- 如何修改帝国cms文章点击量默认值和成倍增加
我们在帝国cms发布完文章,在不点击的情况下,“点击量”默认显示为0,请问有什么方法,修改关注默认值吗?这个可以在增加信息时,“特殊属性”标签里修改点击量,如下图 有朋友问有没其他好的方法快速增加.成 ...
- 使用RegisterNatives注冊原生代码
在Android开发本地代码时,有两种方式.一种是使用javah生成头文件.然后编辑源码,还有一种不用生成头文件,直接编辑代码后,使用RegisterNatives方法进行注冊,以下是一个Demo: ...
- python 字符串、列表和元祖之间的切换
>>> s=['http','://','www','baidu','.com'] >>> url=''.join(s) >>> url 'htt ...