【发布时间】：2019-08-18 15:55:33
【问题描述】：
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
这里是 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，我可以轻松做到
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hive --service metastore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.
进一步向下堆栈跟踪，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，这里是 root 用户拥有的授权
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, 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> 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>
我做错了什么？为了在 docker 容器中使用 hive，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#
【问题讨论】：
标签： mysql docker ubuntu hadoop hive