I've executed the commands as you've said, and the jar that is run is unchanged. Here's exactly what I did.
C:\l\> start-dfs C:\l\> start-yarn C:\l\> cd hadoop-yarn-project\hadoop-yarn\hadoop-yarn-applications\hadoop-yarn-applications-distributedshell C:\l\hadoop-yarn-project\hadoop-yarn\hadoop-yarn-applications\hadoop-yarn-applications-distributedshell>hadoop org.apache.hadoop.yarn.applications.distributedshell.Client -jar target\hadoop-yarn-applications-distributedshell-3.0.0-SNAPSHOT.jar -shell_command whoami ...output... ...modify logging code in C:/l/hadoop-yarn-applications-distributedshell/src/main/java/org/apache/hadoop/yarn/applications/distributedshell/Client.java C:\l\hadoop-yarn-project\hadoop-yarn\hadoop-yarn-applications\hadoop-yarn-applications-distributedshell>mvn clean install -DskipTests C:\l\hadoop-yarn-project\hadoop-yarn\hadoop-yarn-applications\hadoop-yarn-applications-distributedshell>hadoop org.apache.hadoop.yarn.applications.distributedshell.Client -jar target\hadoop-yarn-applications-distributedshell-3.0.0-SNAPSHOT.jar -shell_command whoami ...identical output to before... Do you see anything wrong with what I've done? Thanks, Curtis On Thu, Jun 20, 2013 at 7:17 PM, Omkar Joshi <ojo...@hortonworks.com> wrote: > Hi Curtis, > > where are you picking your jar file from? once you run above command you > will see the updated jar file in > > "..../hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/target/hadoop-yarn-applications-distributedshell-3.0.0-SNAPSHOT.jar" > > I hope you are not using below jar file > > "..../hadoop-dist/target/hadoop-3.0.0-SNAPSHOT/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-3.0.0-SNAPSHOT.jar" > > > What chris has said is right. > > once you have taken latest code, you should follow below steps > 1) mvn clean install -DskipTests (clean to remove previously generated > code) > 2) now say you are updating distributed shell client code. then go to > ""..../hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/" > and then run "mvn clean install" and use jar from target sub folder. > > Thanks, > Omkar Joshi > *Hortonworks Inc.* <http://www.hortonworks.com> > > > On Thu, Jun 20, 2013 at 11:47 AM, Curtis Ullerich > <curtuller...@gmail.com>wrote: > >> Hi Chris, >> >> I really appreciate the response. What you described is what I initially >> tried. The changes never seem to take effect though. Here's what I've done >> (this is Windows): >> >> cd %hadoop_install_dir% >> mvn clean package -DskipTests >> mvn install -DskipTests >> >> --- modify the code in distributed shell's Client.java --- >> >> >> cd >> hadoop-yarn-project\hadoop-yarn\hadoop-yarn-applications\hadoop-yarn-applications-distributedshell >> mvn clean >> mvn package -DskipTests >> mvn install -DskipTests >> >> Then I run the jar, just as before. I've just been changing log >> statements to see if the changes worked. They don't--the output doesn't >> change after doing this rebuild. I've also tried clearing the files put on >> HDFS in my user directory in case that was the issue. I've taken a more >> thorough look at BUILDING.txt and I seemed to be consistent with the >> procedures described there. Am I missing anything else? I've tried >> restarting yarn and dfs, though I didn't think that would matter. >> >> Thanks, >> Curtis >> >> >> >> >> On Thu, Jun 20, 2013 at 11:17 AM, Chris Nauroth <cnaur...@hortonworks.com >> > wrote: >> >>> Hi Curtis, >>> >>> I handle this by running "mvn install -DskipTests" once from the root of >>> the whole hadoop project to install the sub-modules in my local Maven >>> repository. Then, you can change your working directory to any sub-module >>> (like distributed shell) and run a successful Maven build for just that >>> sub-module. Full details are in the BUILDING.txt file in the root of the >>> hadoop project. Look for the section titled "Building components >>> separately". I hope this helps. >>> >>> Chris Nauroth >>> Hortonworks >>> http://hortonworks.com/ >>> >>> >>> >>> On Wed, Jun 19, 2013 at 4:53 PM, Curtis Ullerich <curtuller...@gmail.com >>> > wrote: >>> >>>> What is the way to compile just a subproject of Hadoop with Maven >>>> (without rebuilding parent modules)? In my case I'm wondering about >>>> DistributedShell. I thought that >>>> this<http://stackoverflow.com/questions/1114026/maven-modules-building-a-single-specific-module/3899772#3899772>would >>>> have worked but no changes seem to take effect after building this >>>> way. >>>> >>>> Thanks, >>>> Curtis >>>> >>> >>> >> >
