Sometimes, we want make sure which branch we compile the hadoop code. Normally, we can find this information through hadoop web page, for example the namenode web page:
If we want to change the information by self, we should modify the file in
$HADOOP_HOME/hadoop-common-project/hadoop-common/src/main/resources/common-version-info.properties
version=${pom.version}
revision=${version-info.scm.commit}
branch=${version-info.scm.branch}
user=${user.name}
date=${version-info.build.time}
url=${version-info.scm.uri}
srcChecksum=${version-info.source.md5}
protocVersion=${protobuf.version}
Just modify the value , you can change the web page of namenode. For example we can change the branch to branch=tag-20160817 as the image above.