链接命令在将容器链接到自身时挂起
试图使用我自己为Apache Spark bernieai / docker-spark构build的Docker镜像。 我发现当我试图运行包含在容器中的脚本时，Java抛出了一个exception，因为spark_master容器的名字spark_master 。
这个问题的根本原因是我试图通过脚本./start-master.sh运行在我的Docker容器中的Spark，但是它会抛出以下错误：
Caused by: java.net.UnknownHostException: spark_master
所以我GOOGLE了这个问题，并按照这里的build议： https ： //groups.google.com/forum/#!topic/ docker-user/d-yuxRlO0yE
问题是当我运行命令：
docker run -d -t -P --name spark_master --link spark_master:spark_master bernieai/docker-spark
Docker突然挂了，守护进程没有响应。 没有错误，只是悬挂。
任何想法有什么不对？ 有没有更好的方法来解决根本原因？
增加了Dockerfile
############################################################ # Dockerfile for a Apache Spark Development Environment # Based on Ubuntu Image ############################################################ FROM ubuntu:latest MAINTAINER Justin Long <crockpotveggies.com> ENV SPARK_VERSION 1.6.1 ENV SCALA_VERSION 2.11.7 ENV SPARK_BIN_VERSION $SPARK_VERSION-bin-hadoop2.6 ENV SPARK_HOME /usr/local/spark ENV SCALA_HOME /usr/local/scala ENV PATH $PATH:$SPARK_HOME/bin:$SCALA_HOME/bin # Update the APT cache RUN sed -i.bak 's/main$/main universe/' /etc/apt/sources.list RUN apt-get update RUN apt-get upgrade -y # Install and setup project dependencies RUN apt-get install -y curl wget git RUN locale-gen en_US en_US.UTF-8 #prepare for Java download RUN apt-get install -y python-software-properties RUN apt-get install -y software-properties-common #grab oracle java (auto accept licence) RUN add-apt-repository -y ppa:webupd8team/java RUN apt-get update RUN echo oracle-java8-installer shared/accepted-oracle-license-v1-1 select true | /usr/bin/debconf-set-selections RUN apt-get install -y oracle-java8-installer # Install Scala RUN wget http://downloads.typesafe.com/scala/$SCALA_VERSION/scala-$SCALA_VERSION.tgz && \ tar -zxf /scala-$SCALA_VERSION.tgz -C /usr/local/ && \ ln -s /usr/local/scala-$SCALA_VERSION $SCALA_HOME && \ rm /scala-$SCALA_VERSION.tgz # Installing Spark for Hadoop RUN wget http://d3kbcqa49mib13.cloudfront.net/spark-$SPARK_BIN_VERSION.tgz && \ tar -zxf /spark-$SPARK_BIN_VERSION.tgz -C /usr/local/ && \ ln -s /usr/local/spark-$SPARK_BIN_VERSION $SPARK_HOME && \ rm /spark-$SPARK_BIN_VERSION.tgz ADD scripts/start-master.sh /start-master.sh ADD scripts/start-worker /start-worker.sh ADD scripts/spark-shell.sh /spark-shell.sh ADD scripts/spark-defaults.conf /spark-defaults.conf ADD scripts/remove_alias.sh /remove_alias.sh ENV SPARK_MASTER_OPTS="-Dspark.driver.port=7001 -Dspark.fileserver.port=7002 -Dspark.broadcast.port=7003 -Dspark.replClassServer.port=7004 -Dspark.blockManager.port=7005 -Dspark.executor.port=7006 -Dspark.ui.port=4040 -Dspark.broadcast.factory=org.apache.spark.broadcast.HttpBroadcastFactory" ENV SPARK_WORKER_OPTS="-Dspark.driver.port=7001 -Dspark.fileserver.port=7002 -Dspark.broadcast.port=7003 -Dspark.replClassServer.port=7004 -Dspark.blockManager.port=7005 -Dspark.executor.port=7006 -Dspark.ui.port=4040 -Dspark.broadcast.factory=org.apache.spark.broadcast.HttpBroadcastFactory" ENV SPARK_MASTER_PORT 7077 ENV SPARK_MASTER_WEBUI_PORT 8080 ENV SPARK_WORKER_PORT 8888 ENV SPARK_WORKER_WEBUI_PORT 8081 EXPOSE 8080 7077 8888 8081 4040 7001 7002 7003 7004 7005 7006
用-h标志运行。 它会将主机名设置为spark_master。
docker run -it --rm --name spark_master -h spark_master bernieai/docker-spark ./start-master.sh
这是输出
starting org.apache.spark.deploy.master.Master, logging to /usr/local/spark/logs/spark--org.apache.spark.deploy.master.Master-1-spark_master.out root@spark_master:/# tail usr/local/spark/logs/spark--org.apache.spark.deploy.master.Master-1-spark_master.out 16/04/10 03:12:04 INFO SecurityManager: Changing modify acls to: root 16/04/10 03:12:04 INFO SecurityManager: SecurityManager: authentication disabled; ui acls disabled; users with view permissions: Set(root); users with modify permissions: Set(root) 16/04/10 03:12:05 INFO Utils: Successfully started service 'sparkMaster' on port 7077. 16/04/10 03:12:05 INFO Master: Starting Spark master at spark://spark_master:7077 16/04/10 03:12:05 INFO Master: Running Spark version 1.6.1 16/04/10 03:12:06 INFO Utils: Successfully started service 'MasterUI' on port 8080. 16/04/10 03:12:06 INFO MasterWebUI: Started MasterWebUI at http://172.17.0.2:8080 16/04/10 03:12:06 INFO Utils: Successfully started service on port 6066. 16/04/10 03:12:06 INFO StandaloneRestServer: Started REST server for submitting applications on port 6066 16/04/10 03:12:06 INFO Master: I have been elected leader! New state: ALIVE