Best way to deploy with java 8 #119

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1. lalyos commented on Feb 23, 2016

   

   lalyos

   on Feb 23, 2016

   Contributor

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   The jdk is preinstalled, in order to speed up startup time.
   Right now the official ambari release is using the sepcific 1.7.0_67 version.

   There are some security related issues reported with java8, so right now
   we provide only java7.

   However if you want to experiment with java 8 you can build the docker images locally:

   Just change 2 Lines in ambar-base/Dockerfile

   ENV JDK_ARTIFACT jdk-8u60-linux-x64.tar.gz
   ENV JDK_VERSION jdk1.8.0_60
   

   Than from the ambari-base dir execute a: docker build -t hortonworks/ambari-base .
   After that do the same for ambari-agent and ambari-server images
2. rmelick commented on Feb 24, 2016

   

   rmelick

   on Feb 24, 2016

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   Thanks @lalyos. We're trying to build Dockerfiles based on ambari-server and ambari-agent with FROM, instead of copying them and replacing some params.

   I've gotten it to work sort of by putting the following into our Dockerfile

   # install java 8
   ENV JDK_ARTIFACT jdk-8u60-linux-x64.tar.gz
   ENV JDK_VERSION jdk1.8.0_60
   RUN cd /usr/jdk64 && wget http://public-repo-1.hortonworks.com/ARTIFACTS/$JDK_ARTIFACT && \
       tar -xf $JDK_ARTIFACT && rm -f $JDK_ARTIFACT
   ENV JAVA_HOME /usr/jdk64/$JDK_VERSION
   ENV PATH $JAVA_HOME/bin:$PATH
   
   # jce
   ADD http://public-repo-1.hortonworks.com/ARTIFACTS/UnlimitedJCEPolicyJDK7.zip $JAVA_HOME/jre/lib/security/
   RUN cd $JAVA_HOME/jre/lib/security && unzip UnlimitedJCEPolicyJDK7.zip && rm -f UnlimitedJCEPolicyJDK7.zip && mv UnlimitedJCEPolicy/*jar . && rm -rf UnlimitedJCEPolicy
   

   Then, after ambari-server starts, but before I register the blueprint or start cluster deployment, I run

   docker exec amb-server ambari-server setup -s -j /usr/jdk64/jdk1.8.0_60
   docker exec amb-server ambari-server restart
   

   I think it hadn't been working for me before because I had forgotten to run ambari-server restart, or I was running it after the cluster had already been deployed.

   I definitely agree about preinstalling into the image to help the startup time. I think I'll open a separate thread about the possibilities of preinstalling or predownloading the contents of the HDP repo, as that would also help significantly.
3. grozeille commented on Jul 23, 2017

   

   grozeille

   on Jul 23, 2017

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   I'm not sure that it's needed to choose the JDK, v7 is quite old now, v8 is standard and minimal version for future stack versions.
   The pull request #138 will change the jdk to be v8