学hadoop分析

_相关内容

元数据性能测试

NNbench的jar包位于${HADOOP_HOME}/share/hadoop/mapreduce目录下,${HADOOP_HOME}为测试机器中的Hadoop 安装目录,NNbench的jar包名为hadoop-mapreduce-client-jobclient-x.x.x-tests.jar,使用方法如下。本文所有命令均在${HADOOP_HOME}/...

设置Dataphin实例的计算引擎为Hadoop

Hadoop类型的计算引擎包括:Aliyun E-MapReduce3.x Hadoop、Aliyun E-MapReduce5.x Hadoop、CDH5.x Hadoop、CDH6.x Hadoop、Cloudera Data Platform 7.x、华为 FusionInsight 8.x Hadoop、亚信DP5.3 Hadoop。说明 当计算引擎选择为 Aliyun ...

更换集群损坏的本地盘

hadoop$mount_path/log/hadoop-hdfs chmod 775$mount_path/log/hadoop-hdfs mkdir-p$mount_path/log/hadoop-yarn chown hadoop:hadoop$mount_path/log/hadoop-yarn chmod 755$mount_path/log/hadoop-yarn mkdir-p$mount_path/log/hadoop-...

Use MapReduce to process data in JindoFS

hadoop jar/usr/lib/hadoop-current/share/hadoop/mapreduce/hadoop-mapreduce-examples-*.jar terasort in out Replace the input and output directories with directories in JindoFS to process data in JindoFS:hadoop jar/usr/lib/...

Manage external data sources

MaxCompute allows you to create external data sources and use the external data sources to connect to Hadoop clusters.After the connection is established,you can implement the lakehouse solution.This topic describes how to...

Use HDP 2.6-based Hadoop to read and write OSS ...

Hortonworks Data Platform(HDP)is a big data platform released by Hortonworks and consists of open source components such as Hadoop,Hive,and HBase.Hadoop 3.1.1 is included in HDP 3.0.1 and supports Object Storage Service...

Use ES-Hadoop to enable Hive to write data to and ...

Elasticsearch-Hadoop(ES-Hadoop)is a tool developed by open source Elasticsearch.It connects Elasticsearch to Apache Hadoop and enables data transmission between them.ES-Hadoop combines the quick search capability of ...

Use open source HDFS clients to connect to and use...

export HADOOP_HOME=${Hadoop installation directory}/hadoop-2.7.3 Run the following command to go to the hadoop directory:cd$HADOOP_HOME Run the following commands to add the JAVA_HOME variable to the hadoop-env.sh file in ...

管理Hadoop回收站

Hadoop回收站是Hadoop文件系统的重要功能,可以恢复误删除的文件和目录。本文为您介绍Hadoop回收站的使用方法。背景信息 回收站是Hadoop Shell或部分应用(Hive等)对Hadoop FileSystem API在客户端的封装,当客户端配置或者服务端配置打开...

管理Hadoop回收站

Hadoop回收站是Hadoop文件系统的重要功能,可以恢复误删除的文件和目录。本文为您介绍Hadoop回收站的使用方法。背景信息 回收站是Hadoop Shell或部分应用(Hive等)对Hadoop FileSystem API在客户端的封装,当客户端配置或者服务端配置打开...

管理Hadoop回收站

Hadoop回收站是Hadoop文件系统的重要功能,可以恢复误删除的文件和目录。本文为您介绍Hadoop回收站的使用方法。背景信息 回收站是Hadoop Shell或部分应用(Hive等)对Hadoop FileSystem API在客户端的封装,当客户端配置或者服务端配置打开...

Use Hadoop to access OSS-HDFS by using JindoSDK

HOME=usr/local/hadoop export PATH=$HADOOP_HOME/bin:$PATH source/etc/profile Update HADOOP_HOME in the configuration file of Hadoop.cd$HADOOP_HOME vim etc/hadoop/hadoop-env.sh Replace${JAVA_HOME} with the actual path.export...

文件存储 HDFS 版和对象存储OSS双向数据迁移

{HADOOP_HOME}/bin/hadoop jar \${HADOOP_HOME}/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.8.5.jar \ randomtextwriter \-D mapreduce.randomtextwriter.totalbytes=107374182400 \-D mapreduce.randomtextwriter.bytespermap=...

Fix a YARN defect

yarn-server-resourcemanager-3.2.1.jar/tmp/cp hadoop-yarn-server-resourcemanager-3.2.1.jar$HADOOP_HOME/share/hadoop/yarn/In the commands,$HADOOP_HOME indicates the Hadoop software installation directory.In this example,the ...

What do I do if the services of a cluster fail to ...

mkdir-p$STORE_DIR hadoop fs-chmod 775$STORE_DIR hadoop fs-chown hadoop:hadoop$STORE_DIR STAGING_DIR=$(hdfs getconf-confKey yarn.app.mapreduce.am.staging-dir)hadoop fs-mkdir-p$STAGING_DIR hadoop fs-chmod 777$STAGING_DIR ...

alicloud_gpdb_hadoop_data_source

Provides a GPDB Hadoop Data Source resource.Hadoop DataSource Config.For information about GPDB Hadoop Data Source and how to use it,see What is Hadoop Data Source.-NOTE:Available since v1.230.0.Example Usage Basic Usage ...

Use Hadoop Shell commands to access OSS or OSS-...

This topic describes how to use Hadoop Shell commands to access Object Storage Service(OSS)or OSS-HDFS.Environment preparation In the E-MapReduce(EMR)environment,JindoSDK is installed by default and can be directly used....

MapReduce开发手册

javac-classpath HADOOP_HOME/share/hadoop/common/hadoop-common-X.X.X.jar:HADOOP_HOME/share/hadoop/mapreduce/hadoop-mapreduce-client-core-X.X.X.jar:HADOOP_HOME/share/hadoop/common/lib/commons-cli-1.2.jar-d wordcount_classes ...

访问Hive数据源

env|grep hadoop 返回示例如下:HADOOP_HOME=opt/apps/HADOOP-COMMON/hadoop-common-current/HADOOP_CONF_DIR=etc/taihao-apps/hadoop-conf PATH=opt/apps/JINDOSDK/jindosdk-current/bin:/opt/apps/HADOOP-COMMON/hadoop-common-current/...

Dataphin中执行hadoop fs-ls命令方法

概述 Dataphin中执行hadoop fs-ls命令的方法。详细信息 创建HADOOP_MR任务,可以执行hadoop fs-ls/命令。适用于 Dataphin

从OSS迁移数据

建议您使用的Hadoop版本不低于2.7.3,本文档中使用的Hadoop版本为Apache Hadoop 2.7.3,修改Hadoop配置信息,详情参见 使用开源HDFS客户端访问。在Hadoop集群所有节点上安装JDK,本操作要求JDK版本不低于1.8。在Hadoop集群安装OSS客户端...

LIST FUNCTIONS

numpy-1.19.4-cp37-cp37m-manylinux1_x86_64.zip ST_Aggr_ConvexHull ALIYUN$@aliyun.com 2021-03-18 17:06:29 com.esri.hadoop.hive.ST_Aggr_ConvexHull esri-geometry-api.jar,spatial-sdk-hive.jar ST_Aggr_Intersection ALIYUN$@aliyun....

FileUtil.unTar command injection ...Apache Hadoop

On August 4,2022,Apache Hadoop officially announced a fix on the shell command injection vulnerability CVE-2022-25168.The FileUtil.unTar API of Apache Hadoop does not escape the name of an input file before the file is ...

Configure MIT Kerberos authentication

flow drwxr-x-has hadoop 0 2021-03-29 11:16/emr-sparksql-udf drwxrwxrwt-hadoop hadoop 0 2021-03-29 11:17/spark-history drwxr-x-hadoop hadoop 0 2021-03-29 11:16/tmp drwxrwxrwt-hadoop hadoop 0 2021-03-29 11:17/user Access ...

Develop tasks based on a self-managed Hadoop ...

This topic describes how to associate a self-managed Hadoop cluster with a workspace in DataWorks to develop tasks.This topic also describes how to configure a custom runtime environment for a self-managed Hadoop cluster....

Delta Lake or Apache Hudi storage ...Hadoop clusters

MapReduce(EMR).The following figure shows the architecture of such a data lakehouse solution.Module Alibaba Cloud service Description Open source Hadoop Hadoop clusters that are built in data centers Hadoop clusters that ...

Migrate data from a self-managed HDFS cluster to ...

This topic describes how to migrate data from an open source Hadoop Distributed File System(HDFS)cluster to LindormDFS(LDPS).Background information In some scenarios,you may need to migrate data from a self-managed Hadoop ...

Dataphin中数据集成任务运行报错“java.io....

769)~[hadoop-common-2.6.0-cdh5.16.2.jar:na]at org.apache.hadoop.ipc.Client$Connection.access$3000(Client.java:396)~[hadoop-common-2.6.0-cdh5.16.2.jar:na]at org.apache.hadoop.ipc.Client.getConnection(Client.java:1557)~...

Run Hadoop commands in a notebook to perform ...

When you use a notebook in Alibaba Cloud E-MapReduce(EMR)Serverless Spark,you can run Hadoop commands to access Object Storage Service(OSS)or OSS-HDFS.This topic describes how to run Hadoop commands in an EMR Serverless ...

Notice for other vulnerabilities

This topic is a notice for other vulnerabilities.Unauthorized-access vulnerabilities in Apache Hadoop and Hadoop YARN ResourceManager YARN ZKConfigurationStore deserialization vulnerability in code execution in Apache ...
< 1 2 3 4 ... 200 >
共有200页 跳转至: GO
新人特惠 爆款特惠 最新活动 免费试用