Hey Tim, + cdh-user@ where someone can help with your specific issue. (bcc common-dev).
You may also want to check out Apache Bigtop: http://incubator.apache.org/bigtop Thanks, Eli On Fri, Oct 21, 2011 at 10:30 PM, Tim Broberg <tbrob...@yahoo.com> wrote: > I'd like to add a core module to hadoop, but I'm running into some issues > getting started. > > What I want is to be able to add a native library and codec to some stable > build of hadoop, build, debug, experiment, and benchmark. > > Currently, I'm trying to rebuild the Cloudera rpms so I can get a complete > stable set of source to start from. (When I tried working from the SVN trunk, > it seemed there was so much active development going on, it was hard to get > something stable to compile.) > > So, I'm working from the Cloudera instructions - > https://ccp.cloudera.com/display/CDHDOC/Building+RPMs+from+CDH+Source+RPMs. > > I downloaded hadoop-0.20-0.20.2+923.97-1.src.rpm, installed jdk, ant, maven, > and set various environment variables: > export PATH=$PATH:/usr/local/apache-maven-3.0.3/bin > export JAVA_HOME=/usr/java/jdk1.7.0 > export HADOOP_HOME=/usr/lib/hadoop-0.20 > export HADOOP_VERSION=`hadoop version | head -n 1 | cut -f 2 -d " "` > > I wasn't sure what to do about ANT_HOME, FORREST_HOME, or JAVA5_HOME as > forrest wasn't requested to be installed, ant doesn't appear to have a > special directory anywhere, and just generally not sure what's up with > JAVA5_HOME, but this appears to be forrest related? None of these is > generating complaints when I build. > > When I build, I get a whole bunch of output including the following: > > rpmbuild --rebuild $SRPM > > .........<snip>............ > > compile: > [echo] contrib: gridmix > [javac] Compiling 31 source files to > /home/tbroberg/rpmbuild/BUILD/hadoop-0.20.2-cdh3u1/build/contrib/gridmix/classes > [javac] > /home/tbroberg/rpmbuild/BUILD/hadoop-0.20.2-cdh3u1/src/contrib/gridmix/src/java/org/apache/hadoop/mapred/gridmix/Gridmix.java:396: > error: type argument ? extends T is not within bounds of type-variable E > [javac] private <T> String getEnumValues(Enum<? extends T>[] e) { > [javac] ^ > [javac] where T,E are type-variables: > [javac] T extends Object declared in method <T>getEnumValues(Enum<? > extends T>[]) > [javac] E extends Enum<E> declared in class Enum > [javac] > /home/tbroberg/rpmbuild/BUILD/hadoop-0.20.2-cdh3u1/src/contrib/gridmix/src/java/org/apache/hadoop/mapred/gridmix/Gridmix.java:399: > error: type argument ? extends T is not within bounds of type-variable E > [javac] for (Enum<? extends T> v : e) { > [javac] ^ > [javac] where T,E are type-variables: > [javac] T extends Object declared in method <T>getEnumValues(Enum<? > extends T>[]) > [javac] E extends Enum<E> declared in class Enum > [javac] Note: Some input files use unchecked or unsafe operations. > [javac] Note: Recompile with -Xlint:unchecked for details. > [javac] 2 errors > > Questions: > 1 - Is there a more appropriate environment to work from than the Cloudera > distribution for developing codecs? > 2 - If not, is this an appropriate place to ask about how to build Cloudera? > 3 - Any suggestions for getting this rpm to rebuild? > 4 - Any suggestions for editing the rpm so I can just wipe out gridmix > altogether? > > TIA > - Tim.
