[hadoop@namenode target]$ hadoop jar ch05-3.0.jar ConfigurationPrinter  

io.seqfile.compress.blocksize=1000000  

keep.failed.task.files=false  

mapred.disk.healthChecker.interval=60000  

dfs.df.interval=60000  

dfs.datanode.failed.volumes.tolerated=0  

mapreduce.reduce.input.limit=-1  

mapred.task.tracker.http.address=0.0.0.0:50060  

mapred.used.genericoptionsparser=true  

mapred.userlog.retain.hours=24  

dfs.max.objects=0  

mapred.jobtracker.jobSchedulable=org.apache.hadoop.mapred.JobSchedulable  

mapred.local.dir.minspacestart=0  

hadoop.native.lib=true  

dfs.https.client.keystore.resource=ssl-client.xml  

dfs.https.server.keystore.resource=ssl-server.xml  

mapred.cluster.reduce.memory.mb=-1  

io.sort.spill.percent=0.80  

hadoop.http.authentication.kerberos.keytab=${user.home}/hadoop.keytab  

mapred.reduce.parallel.copies=5  

tasktracker.http.threads=40  

hadoop.security.authorization=false  

mapreduce.ifile.readahead=true  

io.file.buffer.size=4096  

mapreduce.job.restart.recover=true  

mapred.submit.replication=10  

mapred.local.dir.minspacekill=0  

mapred.task.profile=false  

ipc.client.kill.max=10  

dfs.data.dir=/usr/local/hadoop/hdfs/data  

dfs.namenode.avoid.read.stale.datanode=false  

dfs.https.enable=false  

mapred.acls.enabled=false  

mapred.heartbeats.in.second=100  

mapreduce.reduce.shuffle.read.timeout=180000  

mapred.output.compress=false  

mapred.healthChecker.interval=60000  

dfs.blockreport.intervalMsec=3600000  

mapred.jobtracker.blacklist.fault-bucket-width=15  

mapred.task.timeout=600000  

mapred.temp.dir=${hadoop.tmp.dir}/mapred/temp  

mapred.max.tracker.blacklists=4  

dfs.namenode.decommission.interval=30  

dfs.namenode.avoid.write.stale.datanode=false  

dfs.datanode.address=0.0.0.0:50010  

hadoop.http.authentication.token.validity=36000  

mapred.tasktracker.indexcache.mb=10  

mapreduce.jobtracker.staging.root.dir=${hadoop.tmp.dir}/mapred/staging  

mapred.queue.default.state=RUNNING  

hadoop.logfile.count=10  

mapred.skip.attempts.to.start.skipping=2  

dfs.block.access.key.update.interval=600  

mapreduce.reduce.shuffle.connect.timeout=180000  

mapred.job.tracker.persist.jobstatus.active=false  

dfs.block.access.token.lifetime=600  

dfs.name.dir=/usr/local/hadoop/hdfs/name  

mapred.tasktracker.reduce.tasks.maximum=2  

mapred.output.compression.codec=org.apache.hadoop.io.compress.DefaultCodec  

jobclient.output.filter=FAILED  

dfs.permissions=true  

mapred.jobtracker.restart.recover=false  

dfs.webhdfs.enabled=false  

ipc.client.connection.maxidletime=10000  

mapred.local.dir=/usr/local/hadoop/mapred/local  

dfs.datanode.ipc.address=0.0.0.0:50020  

net.topology.impl=org.apache.hadoop.net.NetworkTopology  

mapred.job.tracker=namenode:9001  

dfs.default.chunk.view.size=32768  

mapred.job.shuffle.merge.percent=0.66  

mapred.map.max.attempts=4  

dfs.safemode.extension=30000  

hadoop.security.instrumentation.requires.admin=false  

dfs.datanode.max.xcievers=4096  

dfs.namenode.safemode.min.datanodes=0  

hadoop.http.authentication.signature.secret.file=${user.home}/hadoop-http-auth-signature-secret  

fs.checkpoint.size=67108864  

io.skip.checksum.errors=false  

dfs.datanode.https.address=0.0.0.0:50475  

mapred.job.reduce.input.buffer.percent=0.0  

hadoop.http.authentication.kerberos.principal=HTTP/localhost@LOCALHOST  

mapred.output.compression.type=RECORD  

mapred.task.cache.levels=2  

fs.s3.maxRetries=4  

mapreduce.jobhistory.cleaner.interval-ms=86400000  

io.sort.factor=10  

mapred.userlog.limit.kb=0  

fs.default.name=hdfs://namenode:9000  

mapred.job.tracker.retiredjobs.cache.size=1000  

ipc.client.idlethreshold=4000  

hadoop.tmp.dir=/usr/local/hadoop/hadooptmp  

fs.checkpoint.dir=${hadoop.tmp.dir}/dfs/namesecondary  

dfs.client.use.datanode.hostname=false  

dfs.namenode.decommission.nodes.per.interval=5  

hadoop.skip.worker.version.check=false  

hadoop.util.hash.type=murmur  

io.seqfile.lazydecompress=true  

mapred.job.reduce.memory.mb=-1  

dfs.datanode.dns.interface=default  

mapred.skip.map.max.skip.records=0  

dfs.namenode.delegation.key.update-interval=86400000  

dfs.https.need.client.auth=false  

fs.s3.buffer.dir=${hadoop.tmp.dir}/s3  

mapred.tasktracker.dns.interface=default  

dfs.block.size=67108864  

io.compression.codecs=org.apache.hadoop.io.compress.DefaultCodec,org.apache.hadoop.io.compress.GzipCodec,org.apache.hadoop.io.compress.BZip2Codec,org.apache.hadoop.io.compress.SnappyCodec  

mapred.task.profile.reduces=0-2  

dfs.access.time.precision=3600000  

mapred.job.tracker.jobhistory.lru.cache.size=5  

mapred.cluster.map.memory.mb=-1  

mapred.skip.reduce.auto.incr.proc.count=true  

mapred.job.tracker.persist.jobstatus.hours=0  

fs.har.impl=org.apache.hadoop.fs.HarFileSystem  

local.cache.size=10737418240  

dfs.namenode.stale.datanode.interval=30000  

mapred.job.tracker.handler.count=10  

dfs.namenode.kerberos.internal.spnego.principal=${dfs.web.authentication.kerberos.principal}  

dfs.namenode.logging.level=info  

hadoop.security.token.service.use_ip=true  

fs.ramfs.impl=org.apache.hadoop.fs.InMemoryFileSystem  

hadoop.rpc.socket.factory.class.default=org.apache.hadoop.net.StandardSocketFactory  

fs.kfs.impl=org.apache.hadoop.fs.kfs.KosmosFileSystem  

dfs.https.address=0.0.0.0:50470  

mapreduce.job.acl-view-job=  

dfs.datanode.http.address=0.0.0.0:50075  

mapreduce.job.counters.group.name.max=128  

job.end.retry.interval=30000  

dfs.heartbeat.interval=3  

mapred.queue.names=default  

fs.hdfs.impl=org.apache.hadoop.hdfs.DistributedFileSystem  

dfs.secondary.namenode.kerberos.internal.spnego.principal=${dfs.web.authentication.kerberos.principal}  

mapred.jobtracker.job.history.block.size=3145728  

mapreduce.reduce.shuffle.maxfetchfailures=10  

mapreduce.ifile.readahead.bytes=4194304  

ipc.client.fallback-to-simple-auth-allowed=false  

mapred.child.tmp=./tmp  

fs.har.impl.disable.cache=true  

dfs.blockreport.initialDelay=0  

fs.hftp.impl=org.apache.hadoop.hdfs.HftpFileSystem  

io.sort.mb=100  

mapred.cluster.max.reduce.memory.mb=-1  

mapred.jobtracker.nodegroup.aware=false  

mapred.line.input.format.linespermap=1  

dfs.replication.interval=3  

mapred.combine.recordsBeforeProgress=10000  

mapred.map.tasks=2  

dfs.replication.max=512  

hadoop.http.authentication.type=simple  

dfs.namenode.edits.toleration.length=0  

io.map.index.skip=0  

mapred.task.profile.maps=0-2  

mapred.tasktracker.map.tasks.maximum=2  

hadoop.jetty.logs.serve.aliases=true  

mapred.map.tasks.speculative.execution=true  

webinterface.private.actions=false  

dfs.datanode.du.reserved=0  

dfs.namenode.handler.count=10  

fs.s3.impl=org.apache.hadoop.fs.s3.S3FileSystem  

fs.checkpoint.edits.dir=${fs.checkpoint.dir}  

ipc.server.listen.queue.size=128  

dfs.replication.min=1  

mapred.reduce.tasks=1  

mapreduce.tasktracker.outofband.heartbeat=false  

dfs.namenode.delegation.token.renew-interval=86400000  

mapred.min.split.size=0  

hadoop.logfile.size=10000000  

mapred.job.queue.name=default  

dfs.datanode.sync.behind.writes=false  

fs.webhdfs.impl=org.apache.hadoop.hdfs.web.WebHdfsFileSystem  

dfs.datanode.handler.count=3  

dfs.namenode.invalidate.work.pct.per.iteration=0.32f  

dfs.name.edits.dir=${dfs.name.dir}  

dfs.replication=3  

ipc.server.tcpnodelay=false  

mapred.jobtracker.taskScheduler=org.apache.hadoop.mapred.JobQueueTaskScheduler  

dfs.replication.considerLoad=true  

dfs.datanode.use.datanode.hostname=false  

mapreduce.job.counters.counter.name.max=64  

mapred.skip.reduce.max.skip.groups=0  

dfs.datanode.data.dir.perm=755  

mapred.tasktracker.dns.nameserver=default  

mapred.tasktracker.taskmemorymanager.monitoring-interval=5000  

mapred.tasktracker.expiry.interval=600000  

dfs.web.ugi=webuser,webgroup  

hadoop.security.uid.cache.secs=14400  

map.sort.class=org.apache.hadoop.util.QuickSort  

fs.ftp.impl=org.apache.hadoop.fs.ftp.FTPFileSystem  

dfs.balance.bandwidthPerSec=1048576  

dfs.permissions.supergroup=supergroup  

mapred.max.tracker.failures=4  

mapred.job.tracker.http.address=0.0.0.0:50030  

fs.file.impl=org.apache.hadoop.fs.LocalFileSystem  

mapreduce.jobhistory.max-age-ms=2592000000  

mapred.healthChecker.script.timeout=600000  

mapreduce.job.complete.cancel.delegation.tokens=true  

mapred.job.tracker.persist.jobstatus.dir=/jobtracker/jobsInfo  

io.sort.record.percent=0.05  

job.end.retry.attempts=0  

mapred.reduce.tasks.speculative.execution=true  

dfs.safemode.threshold.pct=0.999f  

fs.s3n.impl=org.apache.hadoop.fs.s3native.NativeS3FileSystem  

hadoop.http.authentication.simple.anonymous.allowed=true  

mapred.system.dir=/usr/local/hadoop/mapred/system  

mapred.job.reuse.jvm.num.tasks=1  

mapred.task.tracker.task-controller=org.apache.hadoop.mapred.DefaultTaskController  

dfs.datanode.drop.cache.behind.reads=false  

dfs.image.transfer.bandwidthPerSec=0  

mapred.jobtracker.maxtasks.per.job=-1  

fs.hsftp.impl=org.apache.hadoop.hdfs.HsftpFileSystem  

mapred.skip.map.auto.incr.proc.count=true  

fs.s3.block.size=67108864  

io.serializations=org.apache.hadoop.io.serializer.WritableSerialization  

mapred.inmem.merge.threshold=1000  

dfs.namenode.write.stale.datanode.ratio=0.5f  

mapred.job.map.memory.mb=-1  

io.mapfile.bloom.size=1048576  

mapred.reduce.max.attempts=4  

topology.script.number.args=100  

mapred.cluster.max.map.memory.mb=-1  

mapred.reduce.slowstart.completed.maps=0.05  

dfs.block.access.token.enable=false  

io.seqfile.sorter.recordlimit=1000000  

fs.trash.interval=0  

dfs.secondary.http.address=0.0.0.0:50090  

hadoop.security.authentication=simple  

hadoop.security.group.mapping=org.apache.hadoop.security.ShellBasedUnixGroupsMapping  

ipc.client.connect.max.retries=10  

dfs.http.address=0.0.0.0:50070  

fs.checkpoint.period=3600  

mapred.map.output.compression.codec=org.apache.hadoop.io.compress.DefaultCodec  

topology.node.switch.mapping.impl=org.apache.hadoop.net.ScriptBasedMapping  

mapreduce.job.counters.groups.max=50  

mapred.tasktracker.tasks.sleeptime-before-sigkill=5000  

hadoop.security.use-weak-http-crypto=false  

mapred.job.shuffle.input.buffer.percent=0.70  

mapred.jobtracker.completeuserjobs.maximum=100  

dfs.namenode.delegation.token.max-lifetime=604800000  

mapreduce.job.counters.max=120  

mapred.user.jobconf.limit=5242880  

dfs.client.block.write.retries=3  

mapred.compress.map.output=false  

dfs.datanode.readahead.bytes=4193404  

mapred.child.java.opts=-Xmx200m  

mapred.jobtracker.blacklist.fault-timeout-window=180  

mapred.merge.recordsBeforeProgress=10000  

io.mapfile.bloom.error.rate=0.005  

mapreduce.job.split.metainfo.maxsize=10000000  

io.bytes.per.checksum=512  

ipc.client.tcpnodelay=false  

dfs.datanode.drop.cache.behind.writes=false  

hadoop.relaxed.worker.version.check=false  

dfs.datanode.dns.nameserver=default  

dfs.namenode.replication.work.multiplier.per.iteration=2  

mapreduce.tasktracker.outofband.heartbeat.damper=1000000  

mapreduce.job.acl-modify-job=  

fs.s3.sleepTimeSeconds=10  

mapred.task.tracker.report.address=127.0.0.1:0