まず Java 1.6 系を入れる。
Search - Apple Developer から Apple - Support - Downloads をダウンロードしてきてダブクリダブクリ。
インストールされた Java 1.6 はどこへ入ってるかというと、 SEのネタ帳 -Mac OSX に Java(JDK)1.6 と NetBeans 6.5 インストール方法 にあるとおり /System/Library/Frameworks/JavaVM.framework/Versions/1.6/Home とかに入るので ${JAVA_HOME}/bin にパスを通しておく。 /usr/bin/java は 1.5 なので必ず入れる必要があるっぽい。
hadoop は http://hadoop.apache.org/core/releases.html#Download あたりから、ミラーをたどって適当に落としてくる。インストールとか不要っぽい。 tarball を解凍してほぼすぐに使える。
conf/hadoop-env.sh を編集して $JAVA_HOME だけ設定してあげる。
export JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/1.6/Home
http://hadoop.apache.org/core/docs/current/quickstart.html#Local に書いてあるとおりコマンドを実行すると、なにやらだーっと流れていく。
$ bin/hadoop jar hadoop-*-examples.jar grep input output 'dfs[a-z.]+' Picked up _JAVA_OPTIONS: -Duser.language=en Picked up _JAVA_OPTIONS: -Duser.language=en 09/01/07 01:07:54 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=JobTracker, sessionId= 09/01/07 01:07:54 INFO mapred.FileInputFormat: Total input paths to process : 3 09/01/07 01:07:54 INFO mapred.JobClient: Running job: job_local_0001 09/01/07 01:07:54 INFO mapred.FileInputFormat: Total input paths to process : 3 09/01/07 01:07:55 INFO mapred.MapTask: numReduceTasks: 1 09/01/07 01:07:55 INFO mapred.MapTask: io.sort.mb = 100 09/01/07 01:07:55 INFO mapred.MapTask: data buffer = 79691776/99614720 09/01/07 01:07:55 INFO mapred.MapTask: record buffer = 262144/327680 09/01/07 01:07:55 INFO mapred.MapTask: Starting flush of map output 09/01/07 01:07:55 INFO mapred.MapTask: Index: (0, 2, 6) 09/01/07 01:07:55 INFO mapred.TaskRunner: Task:attempt_local_0001_m_000000_0 is done. And is in the process of commiting 09/01/07 01:07:55 INFO mapred.LocalJobRunner: file:/Users/kyanny/hadoop-0.19.0/input/capacity-scheduler.xml:0+2065 09/01/07 01:07:55 INFO mapred.TaskRunner: Task 'attempt_local_0001_m_000000_0' done. 09/01/07 01:07:55 INFO mapred.MapTask: numReduceTasks: 1 09/01/07 01:07:55 INFO mapred.MapTask: io.sort.mb = 100 09/01/07 01:07:55 INFO mapred.MapTask: data buffer = 79691776/99614720 09/01/07 01:07:55 INFO mapred.MapTask: record buffer = 262144/327680 09/01/07 01:07:55 INFO mapred.MapTask: Starting flush of map output 09/01/07 01:07:55 INFO mapred.MapTask: Finished spill 0 09/01/07 01:07:55 INFO mapred.TaskRunner: Task:attempt_local_0001_m_000001_0 is done. And is in the process of commiting 09/01/07 01:07:55 INFO mapred.LocalJobRunner: file:/Users/kyanny/hadoop-0.19.0/input/hadoop-default.xml:0+49456 09/01/07 01:07:55 INFO mapred.TaskRunner: Task 'attempt_local_0001_m_000001_0' done. 09/01/07 01:07:55 INFO mapred.MapTask: numReduceTasks: 1 09/01/07 01:07:55 INFO mapred.MapTask: io.sort.mb = 100 09/01/07 01:07:55 INFO mapred.MapTask: data buffer = 79691776/99614720 09/01/07 01:07:55 INFO mapred.MapTask: record buffer = 262144/327680 09/01/07 01:07:55 INFO mapred.MapTask: Starting flush of map output 09/01/07 01:07:55 INFO mapred.MapTask: Index: (0, 2, 6) 09/01/07 01:07:55 INFO mapred.TaskRunner: Task:attempt_local_0001_m_000002_0 is done. And is in the process of commiting 09/01/07 01:07:55 INFO mapred.LocalJobRunner: file:/Users/kyanny/hadoop-0.19.0/input/hadoop-site.xml:0+178 09/01/07 01:07:55 INFO mapred.TaskRunner: Task 'attempt_local_0001_m_000002_0' done. 09/01/07 01:07:55 INFO mapred.Merger: Merging 3 sorted segments 09/01/07 01:07:55 INFO mapred.Merger: Down to the last merge-pass, with 1 segments left of total size: 1324 bytes 09/01/07 01:07:55 INFO mapred.JobClient: map 100% reduce 0% 09/01/07 01:07:56 INFO mapred.TaskRunner: Task:attempt_local_0001_r_000000_0 is done. And is in the process of commiting 09/01/07 01:07:56 INFO mapred.LocalJobRunner: 09/01/07 01:07:56 INFO mapred.TaskRunner: Task attempt_local_0001_r_000000_0 is allowed to commit now 09/01/07 01:07:56 INFO mapred.FileOutputCommitter: Saved output of task 'attempt_local_0001_r_000000_0' to file:/Users/kyanny/hadoop-0.19.0/grep-temp-1486019891 09/01/07 01:07:56 INFO mapred.LocalJobRunner: reduce > reduce 09/01/07 01:07:56 INFO mapred.TaskRunner: Task 'attempt_local_0001_r_000000_0' done. 09/01/07 01:07:56 INFO mapred.JobClient: Job complete: job_local_0001 09/01/07 01:07:56 INFO mapred.JobClient: Counters: 11 09/01/07 01:07:56 INFO mapred.JobClient: File Systems 09/01/07 01:07:56 INFO mapred.JobClient: Local bytes read=758456 09/01/07 01:07:56 INFO mapred.JobClient: Local bytes written=677328 09/01/07 01:07:56 INFO mapred.JobClient: Map-Reduce Framework 09/01/07 01:07:56 INFO mapred.JobClient: Reduce input groups=42 09/01/07 01:07:56 INFO mapred.JobClient: Combine output records=42 09/01/07 01:07:56 INFO mapred.JobClient: Map input records=1585 09/01/07 01:07:56 INFO mapred.JobClient: Reduce output records=42 09/01/07 01:07:56 INFO mapred.JobClient: Map output bytes=1306 09/01/07 01:07:56 INFO mapred.JobClient: Map input bytes=51699 09/01/07 01:07:56 INFO mapred.JobClient: Combine input records=46 09/01/07 01:07:56 INFO mapred.JobClient: Map output records=46 09/01/07 01:07:56 INFO mapred.JobClient: Reduce input records=42 09/01/07 01:07:57 INFO jvm.JvmMetrics: Cannot initialize JVM Metrics with processName=JobTracker, sessionId= - already initialized 09/01/07 01:07:57 WARN mapred.JobClient: Use GenericOptionsParser for parsing the arguments. Applications should implement Tool for the same. 09/01/07 01:07:57 INFO mapred.FileInputFormat: Total input paths to process : 1 09/01/07 01:07:57 INFO mapred.JobClient: Running job: job_local_0002 09/01/07 01:07:57 INFO mapred.FileInputFormat: Total input paths to process : 1 09/01/07 01:07:57 INFO mapred.MapTask: numReduceTasks: 1 09/01/07 01:07:57 INFO mapred.MapTask: io.sort.mb = 100 09/01/07 01:07:57 INFO mapred.MapTask: data buffer = 79691776/99614720 09/01/07 01:07:57 INFO mapred.MapTask: record buffer = 262144/327680 09/01/07 01:07:57 INFO mapred.MapTask: Starting flush of map output 09/01/07 01:07:57 INFO mapred.MapTask: Finished spill 0 09/01/07 01:07:57 INFO mapred.TaskRunner: Task:attempt_local_0002_m_000000_0 is done. And is in the process of commiting 09/01/07 01:07:57 INFO mapred.LocalJobRunner: file:/Users/kyanny/hadoop-0.19.0/grep-temp-1486019891/part-00000:0+1660 09/01/07 01:07:57 INFO mapred.TaskRunner: Task 'attempt_local_0002_m_000000_0' done. 09/01/07 01:07:57 INFO mapred.Merger: Merging 1 sorted segments 09/01/07 01:07:57 INFO mapred.Merger: Down to the last merge-pass, with 1 segments left of total size: 1324 bytes 09/01/07 01:07:58 INFO mapred.TaskRunner: Task:attempt_local_0002_r_000000_0 is done. And is in the process of commiting 09/01/07 01:07:58 INFO mapred.LocalJobRunner: 09/01/07 01:07:58 INFO mapred.TaskRunner: Task attempt_local_0002_r_000000_0 is allowed to commit now 09/01/07 01:07:58 INFO mapred.FileOutputCommitter: Saved output of task 'attempt_local_0002_r_000000_0' to file:/Users/kyanny/hadoop-0.19.0/output 09/01/07 01:07:58 INFO mapred.LocalJobRunner: reduce > reduce 09/01/07 01:07:58 INFO mapred.TaskRunner: Task 'attempt_local_0002_r_000000_0' done. 09/01/07 01:07:58 INFO mapred.JobClient: Job complete: job_local_0002 09/01/07 01:07:58 INFO mapred.JobClient: Counters: 11 09/01/07 01:07:58 INFO mapred.JobClient: File Systems 09/01/07 01:07:58 INFO mapred.JobClient: Local bytes read=709976 09/01/07 01:07:58 INFO mapred.JobClient: Local bytes written=678528 09/01/07 01:07:58 INFO mapred.JobClient: Map-Reduce Framework 09/01/07 01:07:58 INFO mapred.JobClient: Reduce input groups=2 09/01/07 01:07:58 INFO mapred.JobClient: Combine output records=0 09/01/07 01:07:58 INFO mapred.JobClient: Map input records=42 09/01/07 01:07:58 INFO mapred.JobClient: Reduce output records=42 09/01/07 01:07:58 INFO mapred.JobClient: Map output bytes=1238 09/01/07 01:07:58 INFO mapred.JobClient: Map input bytes=1574 09/01/07 01:07:58 INFO mapred.JobClient: Combine input records=0 09/01/07 01:07:58 INFO mapred.JobClient: Map output records=42 09/01/07 01:07:58 INFO mapred.JobClient: Reduce input records=42
$ cat output/* 3 dfs. 3 dfs.name.dir 1 dfs.http.address 1 dfs.access.time.precision 1 dfs.balance.bandwidth 1 dfs.block.size 1 dfs.blockreport.initial 1 dfs.blockreport.interval 1 dfs.client.block.write.retries 1 dfs.data.dir 1 dfs.datanode.address 1 dfs.datanode.dns.interface 1 dfs.datanode.dns.nameserver 1 dfs.datanode.du.reserved 1 dfs.datanode.handler.count 1 dfs.datanode.http.address 1 dfs.datanode.https.address 1 dfs.datanode.ipc.address 1 dfs.default.chunk.view.size 1 dfs.df.interval 1 dfs.heartbeat.interval 1 dfs.hosts 1 dfs.hosts.exclude 1 dfs.https.address 1 dfs.impl 1 dfs.max.objects 1 dfs.name.edits.dir 1 dfs.namenode.decommission.interval 1 dfs.namenode.handler.count 1 dfs.namenode.logging.level 1 dfs.permissions 1 dfs.permissions.supergroup 1 dfs.replication 1 dfs.replication.consider 1 dfs.replication.interval 1 dfs.replication.max 1 dfs.replication.min 1 dfs.replication.min. 1 dfs.safemode.extension 1 dfs.safemode.threshold.pct 1 dfs.secondary.http.address 1 dfs.web.ugi
何やってるかさっぱりわかんないけど無事動いた。 GNU Linux でも Windows でもないけどちゃんと動く。 Java だから当たり前か。
