accumulo

sqoop 从mysql 导入数据到hbase

不羁的心 提交于 2021-02-05 20:25:47
环境: 软件 版本 备注 Ubuntu 19.10 sqoop 1.4.7 mysql 8.0.20-0ubuntu0.19.10.1 (Ubuntu) hbase 2.2.4 必须启动 hadoop 3.1.2 必须启动 hive 3.0.0 之所以和hive有关系是因为需要在.bashrc中设置HCAT_HOME accumulo 2.0.0 需要配合sqoop在.bashrc中设置ACCUMULO_HOMT 数据导入目标: mysql数据------------->Hbase ############################################################################## 准备MYSQL数据集: mysql> create database sqoop_hbase; mysql> use sqoop_hbase; mysql> CREATE TABLE book( -> id INT(4) PRIMARY KEY NOT NULL AUTO_INCREMENT, -> NAME VARCHAR(255) NOT NULL, -> price VARCHAR(255) NOT NULL); 插入数据集 mysql> INSERT INTO book(NAME, price) VALUES('Lie Sporting',

每个大数据架构师都需要的6个基本技能

柔情痞子 提交于 2020-10-26 23:14:17
数据分为结构化和非结构化两种。尽管大数据为各种规模的组织提供了许多洞察和分析的机会,但处理起来非常困难,并且需要一系列的特定技能。 大数据由大数据架构师处理,这是一个非常专业的职位。很多组织需要大数据架构师采用数据技术Hadoop分析数据来解决重大的问题。 大数据架构师需要大规模处理数据库并分析数据,以便帮助组织做出正确的业务决策。具有这种才能的架构师需要成为一支强大团队的领导者。他应该具有指导团队成员工作并与不同的团队合作的能力。对于他们而言,与各种组织和供应商建立良好的合作关系也至关重要。 从事大数据架构师工作所需的6种技能 成为大数据架构师需要多年的学习培训,需要具有广泛的能力,而这些能力会随着领域的发展而增长。大数据架构师需要具备以下6种技能: (1) 数据分析的决策权,应具备采用大数据技术分析海量数据的能力。 (2) 应该了解机器学习技术,因为这是至关重要的知识。还要具有模式识别、处理数据的聚类以及文本挖掘等能力。 (3) 大数据架构师应该对编程语言和所有最新技术有浓厚的兴趣和经验。了解所有类型的JavaScript框架,如HTML5、RESTful服务、Spark、Python、Hive、Kafka和CSS都是必不可少的框架。 (4) 大数据架构师应具备必要的知识和经验,以处理最新的数据技术,例如Hadoop、MapReduce、HBase、oozie、Flume

Failed to connect to zookeeper within 2x zookeeper timeout period 30000

人盡茶涼 提交于 2020-01-16 16:20:41
问题 Failed to connect to zookeeper (10.10.10.205:2181) within 2x zookeeper timeout period 30000 I'm trying to run geomesa client on my local system. I've setup hadoop, accumulo and zookeeper in my virtual machine (whose ip is 10.10.10.205) I can see that my zookeeper is running. 2187 Jps 24929 NameNode 25610 Main 25729 Main 25203 SecondaryNameNode 25055 DataNode 30767 QuorumPeerMain But when I am trying to connect through client. I keep getting this error. java.lang.RuntimeException: Failed to

How to determine Accumulo table visibilities?

人盡茶涼 提交于 2020-01-02 12:02:45
问题 We have an Accumulo instance and some of the tables have data which was written with visibility tokens which none of our current users have. For various reasons, we do not know what all the visibility strings/tokens are within the tables. Because of this, we have orphaned data. Is their a way for the Accumulo root user or other user to determine what the visibility strings are for the data within a given table without them having those tokens already assigned to them? 回答1: You're going to

How to determine Accumulo table visibilities?

二次信任 提交于 2020-01-02 12:01:14
问题 We have an Accumulo instance and some of the tables have data which was written with visibility tokens which none of our current users have. For various reasons, we do not know what all the visibility strings/tokens are within the tables. Because of this, we have orphaned data. Is their a way for the Accumulo root user or other user to determine what the visibility strings are for the data within a given table without them having those tokens already assigned to them? 回答1: You're going to

Does Accumulo support aggregation?

雨燕双飞 提交于 2019-12-30 07:29:49
问题 I am new to Accumulo. I know that I can write Java code to scan, insert, update and delete data using Hadoop and MapReduce. What I would like to know is whether aggregation is possible in Accumulo. I know that in MySql we can use groupby , orderby , max , min , count , sum , join s, nested queries, etc. Is their is any possibility to use these functions in Accumulo either directly or indirectly. 回答1: Accumulo does support aggregation through the use of combiner iterators (Accumulo Combiner

Read from Accumulo with Spark Shell

倖福魔咒の 提交于 2019-12-24 01:23:07
问题 I try to use the spark shell to connect to an Accumulo Table I load spark and the libraries I need like this: $ bin/spark-shell --jars /data/bigdata/installs/accumulo-1.7.2/lib/accumulo-fate.jar:/data/bigdata/installs/accumulo-1.7.2/lib/accumulo-core.jar:/data/bigdata/installs/accumulo-1.7.2/lib/accumulo-trace.jar:/data/bigdata/installs/accumulo-1.7.2/lib/htrace-core.jar:/data/bigdata/installs/accumulo-1.7.2/lib/libthrift.jar To the shell, I paste import org.apache.hadoop.mapred.JobConf

Accumulo createBatchScanner range not working as expected

随声附和 提交于 2019-12-23 15:39:01
问题 I cant get a batch scanner to only scan for a specific row, when settings start and stop keys to the same thing I get no entry's back, when using an scanner I get this exception: "java.lang.IllegalArgumentException: Start key must be less than end key in range (Test : [] 0 false, Test : [] 0 false)"... I am writing in C# in Visual Studio 2010 and using Thrift (ver 0.9.1.1) and Accumulo's (ver 1.5.0) proxy.thrift code in the project. Here is my code, everything "works" but I don't get any

accumulo, zookeeper hadoop Installation instructions, downloads and versions for CENTOS 6

99封情书 提交于 2019-12-12 21:12:38
问题 I would appreciate guidance on accumulo, zookeeper hadoop Installation instructions, downloads and versions for CENTOS 6. Thanks, Chris 回答1: You can do the installation via cloudera manager version 5. I recently installed accumulo using the same. Here is the link for Cloudera manager 5. You can use this Youtube video as reference. 来源: https://stackoverflow.com/questions/21594680/accumulo-zookeeper-hadoop-installation-instructions-downloads-and-versions-for

Maintain statistics across rows in accumulo

二次信任 提交于 2019-12-12 03:36:37
问题 I am relatively new to Accumulo, so would greatly appreciate general tips for doing this better. I have a rowIds that are made up of a time component and a geographic component. I'd like to maintain statistics (counts, sums, etc.) in an iterator of some sort, but would like to emit mutations to other rows as part of the ingest. In other words, as I insert a row: <timeA>_<geoX> colFam:colQual value In addition to the mutation above, I'd like to maintain stats in separate rows in the same table