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我正在尝试使用hadoop和hive创建一个docker容器.这是我的Dockerfile
FROM ubuntu:latest
USER root
RUN apt-get update
#RUN apt-get -y install default-jre
RUN apt-get install -y python-pip python-dev build-essential
RUN apt-get install -y libmysqlclient-dev
RUN apt-get install -y python-mysqldb
RUN apt-get update &&
apt-get upgrade -y &&
apt-get install -y git
ENV HADOOP_HOME /opt/hadoop
ENV JAVA_HOME /usr/lib/jvm/java-8-openjdk-amd64
# install packages
RUN
apt-get update && apt-get install -y
ssh
rsync
vim
openjdk-8-jdk
# create ssh keys
RUN
ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa &&
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys &&
chmod 0600 ~/.ssh/authorized_keys
RUN DEBIAN_FRONTEND=noninteractive apt install -y mysql-client
RUN DEBIAN_FRONTEND=noninteractive apt install -y mysql-server
RUN chown -R mysql:mysql /var/lib/mysql /var/log/mysql
WORKDIR /opt
# download and extract hadoop,set JAVA_HOME in hadoop-env.sh,update path
RUN wget --no-check-certificate https://www-us.apache.org/dist/hadoop/common/hadoop-2.8.5/hadoop-2.8.5.tar.gz
RUN tar -xzf hadoop-2.8.5.tar.gz
RUN mv hadoop-2.8.5 $HADOOP_HOME
RUN echo "export JAVA_HOME=$JAVA_HOME" >> $HADOOP_HOME/etc/hadoop/hadoop-env.sh
RUN echo "PATH=$PATH:$HADOOP_HOME/bin" >> ~/.bashrc
RUN rm hadoop-2.8.5.tar.gz
ARG HIVE_VERSION
# Set HIVE_VERSION from arg if provided at build,env if provided at run,or default
# https://docs.docker.com/engine/reference/builder/#using-arg-variables
# https://docs.docker.com/engine/reference/builder/#environment-replacement
ENV HIVE_VERSION=${HIVE_VERSION:-2.3.2}
ENV HIVE_HOME /opt/hive
ENV PATH $HIVE_HOME/bin:$PATH
RUN echo "PATH=$PATH:$HIVE_HOME/bin" >> ~/.bashrc
#Install Hive and PostgreSQL JDBC
RUN apt-get update && apt-get install -y wget procps &&
wget --no-check-certificate https://archive.apache.org/dist/hive/hive-$HIVE_VERSION/apache-hive-$HIVE_VERSION-bin.tar.gz &&
tar -xzvf apache-hive-$HIVE_VERSION-bin.tar.gz &&
mv apache-hive-$HIVE_VERSION-bin hive &&
rm apache-hive-$HIVE_VERSION-bin.tar.gz &&
apt-get clean &&
rm -rf /var/lib/apt/lists/*
ADD mysql-connector-java-5.1.47.jar /opt/hive/lib
ADD hive-site.xml /opt/hive/conf
这是hive-site.xml
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
<property>
<name>javax.jdo.option.ConnectionURL</name>
<value>jdbc:mysql://localhost:3306/metastore?createDatabaseIfNotExist=true&autoReconnect=true&useSSL=false</value>
</property>
<property>
<name>javax.jdo.option.ConnectionDriverName</name>
<value>com.mysql.jdbc.Driver</value>
</property>
<property>
<name>javax.jdo.option.ConnectionUserName</name>
<value>root</value>
</property>
<property>
<name>javax.jdo.option.ConnectionPassword</name>
<value>password</value>
</property>
<property>
<name>datanucleus.autoCreateSchema</name>
<value>true</value>
</property>
<property>
<name>datanucleus.fixedDatastore</name>
<value>true</value>
</property>
<property>
<name>datanucleus.autoCreateTables</name>
<value>True</value>
</property>
</configuration>
我能够构建和运行容器.当我执行到容器中时,我可以轻松地执行
root@c29fa91db6a2:/opt/hive/conf# mysql -uroot -ppassword
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 191
Server version: 5.7.25-0ubuntu0.18.04.2 (Ubuntu)
Copyright (c) 2000,2019,Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
mysql>
但是当我尝试做蜂巢-服务元存储时,我得到了
Caused by: java.sql.SQLException: Unable to open a test connection to the given database. JDBC url = jdbc:mysql://localhost:3306/metastore?createDatabaseIfNotExist=true&autoReconnect=true&useSSL=false,username = root. Terminating connection pool (set lazyInit to true if you expect to start your database after your app). Original Exception: ------
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
在堆栈跟踪的更深处,我看到了
Caused by: java.sql.SQLException: Access denied for user 'root'@'localhost'
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965) ~[mysql-connector-java-5.1.47.jar:5.1.47]
但是,这是root用户拥有的授予
root@c29fa91db6a2:/opt/hive/conf# mysql -uroot -ppassword
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 205
Server version: 5.7.25-0ubuntu0.18.04.2 (Ubuntu)
Copyright (c) 2000,Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
mysql> show grants;
+---------------------------------------------------------------------+
| Grants for root@localhost |
+---------------------------------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION |
| GRANT PROXY ON ''@'' TO 'root'@'localhost' WITH GRANT OPTION |
+---------------------------------------------------------------------+
2 rows in set (0.00 sec)
mysql>
我究竟做错了什么？为了在Docker容器内使用配置单元,我还需要做什么？
另外,我看到mysql正在运行
root@7bfa781e1a2c:/opt/hive/conf# ps aux | grep mysql
mysql 1931 0.0 0.0 4624 1768 ? S 20:19 0:00 /bin/sh /usr/bin/mysqld_safe
mysql 2282 0.2 8.7 1416908 179700 ? Sl 20:19 0:00 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin --log-error=/var/log/mysql/error.log --pid-file=/var/run/mysqld/mysqld.pid --socket=/var/run/mysqld/mysqld.sock --port=3306 --log-syslog=1 --log-syslog-facility=daemon --log-syslog-tag=
root 2594 0.0 0.0 11460 1084 pts/1 S+ 20:24 0:00 grep --color=auto mysql
root@7bfa781e1a2c:/opt/hive/conf#
最佳答案
有几个问题需要解决：
> mysql安装随附的默认root用户使用auth_socket作为身份验证插件.这意味着它没有密码.尝试使用mysql -uroot登录,它仍然会登录.
mysql> select * from mysql.userG
*************************** 1. row ***************************
Host: localhost
User: root
Select_priv: Y
Insert_priv: Y
Update_priv: Y
Delete_priv: Y
Create_priv: Y
Drop_priv: Y
Reload_priv: Y
Shutdown_priv: Y
Process_priv: Y
File_priv: Y
Grant_priv: Y
References_priv: Y
Index_priv: Y
Alter_priv: Y
Show_db_priv: Y
Super_priv: Y
Create_tmp_table_priv: Y
Lock_tables_priv: Y
Execute_priv: Y
Repl_slave_priv: Y
Repl_client_priv: Y
Create_view_priv: Y
Show_view_priv: Y
Create_routine_priv: Y
Alter_routine_priv: Y
Create_user_priv: Y
Event_priv: Y
Trigger_priv: Y
Create_tablespace_priv: Y
ssl_type:
ssl_cipher:
x509_issuer:
x509_subject:
max_questions: 0
max_updates: 0
max_connections: 0
max_user_connections: 0
plugin: auth_socket
authentication_string:
password_expired: N
password_last_changed: 2019-04-03 07:43:20
password_lifetime: NULL
account_locked: N
>因此,在mysql中进行任何更改之前,配置单元服务会引发以下错误：
由以下原因引起：java.sql.SQLException：用户’root’@’localhost’的访问被拒绝
>我们需要设置root @ localhost以使用mysql_native_password身份验证,并设置@rajesh提到的密码：
mysql> alter user root@localhost identified with mysql_native_password by 'password';
Query OK,0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK,0 rows affected (0.00 sec)
mysql> q
Bye
>仍然配置单元为我抛出错误,因为未更新加载的mysql模式.所以不得不做Hive 2.1.1 MetaException(message:Version information not found in metastore. )中提到的一些步骤
cd $HIVE_HOME/scripts/metastore/upgrade/mysql/
mysql -uroot -ppassword
mysql> use metastore;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> source hive-schema-2.3.0.mysql.sql;
>现在,配置单元开始正常.
2019-04-03T08:58:01,442 INFO [main] org.apache.hadoop.hive.metastore.HiveMetaStore - Starting hive metastore on port 9083
2019-04-03T08:58:01,687 INFO [main] org.apache.hadoop.hive.metastore.HiveMetaStore - 0: Opening raw store with implementation class:org.apache.hadoop.hive.metastore.ObjectStore
2019-04-03T08:58:05,535 INFO [main] org.apache.hadoop.hive.metastore.HiveMetaStore - Added admin role in metastore
2019-04-03T08:58:05,546 INFO [main] org.apache.hadoop.hive.metastore.HiveMetaStore - Added public role in metastore
2019-04-03T08:58:05,594 INFO [main] org.apache.hadoop.hive.metastore.HiveMetaStore - No user is added in admin role,since config is empty
2019-04-03T08:58:05,804 INFO [main] org.apache.hadoop.hive.metastore.HiveMetaStore - Starting DB backed MetaStore Server with SetUGI enabled
2019-04-03T08:58:05,814 INFO [main] org.apache.hadoop.hive.metastore.HiveMetaStore - Started the new metaserver on port [9083]...
2019-04-03T08:58:05,815 INFO [main] org.apache.hadoop.hive.metastore.HiveMetaStore - Options.minWorkerThreads = 200
2019-04-03T08:58:05,816 INFO [main] org.apache.hadoop.hive.metastore.HiveMetaStore - Options.maxWorkerThreads = 1000
2019-04-03T08:58:05,816 INFO [main] org.apache.hadoop.hive.metastore.HiveMetaStore - TCP keepalive = true
（编辑：李大同）
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