Thanks everyone for your replies. I had some difficulties setting up a local instance so I was not sure if it is working correctly.
-AP_ On May 8, 2012, at 6:59 PM, George Pace <keepp...@gmail.com> wrote: > Just as an FYI > > Today in History - Archimedes draws his first circle - discovers its as > easy as PI .. > > Sorry .. couldn't resist .. > > > > On Tue, May 8, 2012 at 8:35 PM, Alex Paransky <ap...@standardset.com> wrote: > >> So, I installed Hadoop on my imac via port install hadoop and after working >> through a few configuration issues tried to test the setup with calculation >> of PI. Unfortunately, I got this answer: >> >> Estimated value of Pi is *3.14800000000000000000* >> >> Which is not what I expected. Is there something that I missed? >> >> Thanks for any help you can offer. >> >> Here is the job output: >> hadoop-1.0.2 $ hadoop-bin hadoop jar $HADOOP_HOME/hadoop-examples-*.jar pi >> 10 100 >> Warning: $HADOOP_HOME is deprecated. >> >> Number of Maps = 10 >> Samples per Map = 100 >> Wrote input for Map #0 >> Wrote input for Map #1 >> Wrote input for Map #2 >> Wrote input for Map #3 >> Wrote input for Map #4 >> Wrote input for Map #5 >> Wrote input for Map #6 >> Wrote input for Map #7 >> Wrote input for Map #8 >> Wrote input for Map #9 >> Starting Job >> 12/05/08 16:15:12 INFO mapred.FileInputFormat: Total input paths to process >> : 10 >> 12/05/08 16:15:13 INFO mapred.JobClient: Running job: job_201205081614_0001 >> 12/05/08 16:15:14 INFO mapred.JobClient: map 0% reduce 0% >> 12/05/08 16:15:28 INFO mapred.JobClient: map 20% reduce 0% >> 12/05/08 16:15:34 INFO mapred.JobClient: map 40% reduce 0% >> 12/05/08 16:15:37 INFO mapred.JobClient: map 40% reduce 6% >> 12/05/08 16:15:40 INFO mapred.JobClient: map 60% reduce 6% >> 12/05/08 16:15:46 INFO mapred.JobClient: map 80% reduce 13% >> 12/05/08 16:15:52 INFO mapred.JobClient: map 100% reduce 26% >> 12/05/08 16:16:01 INFO mapred.JobClient: map 100% reduce 100% >> 12/05/08 16:16:06 INFO mapred.JobClient: Job complete: >> job_201205081614_0001 >> 12/05/08 16:16:06 INFO mapred.JobClient: Counters: 27 >> 12/05/08 16:16:06 INFO mapred.JobClient: Job Counters >> 12/05/08 16:16:06 INFO mapred.JobClient: Launched reduce tasks=1 >> 12/05/08 16:16:06 INFO mapred.JobClient: SLOTS_MILLIS_MAPS=49813 >> 12/05/08 16:16:06 INFO mapred.JobClient: Total time spent by all >> reduces waiting after reserving slots (ms)=0 >> 12/05/08 16:16:06 INFO mapred.JobClient: Total time spent by all maps >> waiting after reserving slots (ms)=0 >> 12/05/08 16:16:06 INFO mapred.JobClient: Launched map tasks=10 >> 12/05/08 16:16:06 INFO mapred.JobClient: Data-local map tasks=10 >> 12/05/08 16:16:06 INFO mapred.JobClient: SLOTS_MILLIS_REDUCES=31329 >> 12/05/08 16:16:06 INFO mapred.JobClient: File Input Format Counters >> 12/05/08 16:16:06 INFO mapred.JobClient: Bytes Read=1180 >> 12/05/08 16:16:06 INFO mapred.JobClient: File Output Format Counters >> 12/05/08 16:16:06 INFO mapred.JobClient: Bytes Written=97 >> 12/05/08 16:16:06 INFO mapred.JobClient: FileSystemCounters >> 12/05/08 16:16:06 INFO mapred.JobClient: FILE_BYTES_READ=226 >> 12/05/08 16:16:06 INFO mapred.JobClient: HDFS_BYTES_READ=2410 >> 12/05/08 16:16:06 INFO mapred.JobClient: FILE_BYTES_WRITTEN=239538 >> 12/05/08 16:16:06 INFO mapred.JobClient: HDFS_BYTES_WRITTEN=215 >> 12/05/08 16:16:06 INFO mapred.JobClient: Map-Reduce Framework >> 12/05/08 16:16:06 INFO mapred.JobClient: Map output materialized >> bytes=280 >> 12/05/08 16:16:06 INFO mapred.JobClient: Map input records=10 >> 12/05/08 16:16:06 INFO mapred.JobClient: Reduce shuffle bytes=252 >> 12/05/08 16:16:06 INFO mapred.JobClient: Spilled Records=40 >> 12/05/08 16:16:06 INFO mapred.JobClient: Map output bytes=180 >> 12/05/08 16:16:06 INFO mapred.JobClient: Total committed heap usage >> (bytes)=1931190272 >> 12/05/08 16:16:06 INFO mapred.JobClient: Map input bytes=240 >> 12/05/08 16:16:06 INFO mapred.JobClient: Combine input records=0 >> 12/05/08 16:16:06 INFO mapred.JobClient: SPLIT_RAW_BYTES=1230 >> 12/05/08 16:16:06 INFO mapred.JobClient: Reduce input records=20 >> 12/05/08 16:16:06 INFO mapred.JobClient: Reduce input groups=20 >> 12/05/08 16:16:06 INFO mapred.JobClient: Combine output records=0 >> 12/05/08 16:16:06 INFO mapred.JobClient: Reduce output records=0 >> 12/05/08 16:16:06 INFO mapred.JobClient: Map output records=20 >> Job Finished in 53.422 seconds >> Estimated value of Pi is 3.14800000000000000000 >> hadoop-1.0.2 $ >>
