Hadoop 2.x属性修改

w1w

　　Hadoop自升级到2.x版本之后，有很多属性的名称已经被遗弃了，虽然这些被遗弃的属性名称目前还可以用，但是这里还是建议用新的属性名，主要遗弃的属性名称主要见下面表格：
　　已经被遗弃属性的名称新的属性名称
　　create.empty.dir.if.nonexistmapreduce.jobcontrol.createdir.ifnotexist
　　dfs.access.time.precisiondfs.namenode.accesstime.precision
　　dfs.backup.addressdfs.namenode.backup.address
　　dfs.backup.http.addressdfs.namenode.backup.http-address
　　dfs.balance.bandwidthPerSecdfs.datanode.balance.bandwidthPerSec
　　dfs.block.sizedfs.blocksize
　　dfs.data.dirdfs.datanode.data.dir
　　dfs.datanode.max.xcieversdfs.datanode.max.transfer.threads
　　dfs.df.intervalfs.df.interval
　　dfs.federation.nameservice.iddfs.nameservice.id
　　dfs.federation.nameservicesdfs.nameservices
　　dfs.http.addressdfs.namenode.http-address
　　dfs.https.addressdfs.namenode.https-address
　　dfs.https.client.keystore.resourcedfs.client.https.keystore.resource
　　dfs.https.need.client.authdfs.client.https.need-auth
　　dfs.max.objectsdfs.namenode.max.objects
　　dfs.max-repl-streamsdfs.namenode.replication.max-streams
　　dfs.name.dirdfs.namenode.name.dir
　　dfs.name.dir.restoredfs.namenode.name.dir.restore
　　dfs.name.edits.dirdfs.namenode.edits.dir
　　dfs.permissionsdfs.permissions.enabled
　　dfs.permissions.supergroupdfs.permissions.superusergroup
　　dfs.read.prefetch.sizedfs.client.read.prefetch.size
　　dfs.replication.considerLoaddfs.namenode.replication.considerLoad
　　dfs.replication.intervaldfs.namenode.replication.interval
　　dfs.replication.mindfs.namenode.replication.min
　　dfs.replication.pending.timeout.secdfs.namenode.replication.pending.timeout-sec
　　dfs.safemode.extensiondfs.namenode.safemode.extension
　　dfs.safemode.threshold.pctdfs.namenode.safemode.threshold-pct
　　dfs.secondary.http.addressdfs.namenode.secondary.http-address
　　dfs.socket.timeoutdfs.client.socket-timeout
　　dfs.umaskmodefs.permissions.umask-mode
　　dfs.write.packet.sizedfs.client-write-packet-size
　　fs.checkpoint.dirdfs.namenode.checkpoint.dir
　　fs.checkpoint.edits.dirdfs.namenode.checkpoint.edits.dir
　　fs.checkpoint.perioddfs.namenode.checkpoint.period
　　fs.default.namefs.defaultFS
　　hadoop.configured.node.mappingnet.topology.configured.node.mapping
　　hadoop.job.history.locationmapreduce.jobtracker.jobhistory.location
　　hadoop.native.libio.native.lib.available
　　hadoop.net.static.resolutionsmapreduce.tasktracker.net.static.resolutions
　　hadoop.pipes.command-file.keepmapreduce.pipes.commandfile.preserve
　　hadoop.pipes.executable.interpretormapreduce.pipes.executable.interpretor
　　hadoop.pipes.executablemapreduce.pipes.executable
　　hadoop.pipes.java.mappermapreduce.pipes.isjavamapper
　　hadoop.pipes.java.recordreadermapreduce.pipes.isjavarecordreader
　　hadoop.pipes.java.recordwritermapreduce.pipes.isjavarecordwriter
　　hadoop.pipes.java.reducermapreduce.pipes.isjavareducer
　　hadoop.pipes.partitionermapreduce.pipes.partitioner
　　heartbeat.recheck.intervaldfs.namenode.heartbeat.recheck-interval
　　io.bytes.per.checksumdfs.bytes-per-checksum
　　io.sort.factormapreduce.task.io.sort.factor
　　io.sort.mbmapreduce.task.io.sort.mb
　　io.sort.spill.percentmapreduce.map.sort.spill.percent
　　jobclient.completion.poll.intervalmapreduce.client.completion.pollinterval
　　jobclient.output.filtermapreduce.client.output.filter
　　jobclient.progress.monitor.poll.intervalmapreduce.client.progressmonitor.pollinterval
　　job.end.notification.urlmapreduce.job.end-notification.url
　　job.end.retry.attemptsmapreduce.job.end-notification.retry.attempts
　　job.end.retry.intervalmapreduce.job.end-notification.retry.interval
　　job.local.dirmapreduce.job.local.dir
　　keep.failed.task.filesmapreduce.task.files.preserve.failedtasks
　　keep.task.files.patternmapreduce.task.files.preserve.filepattern
　　key.value.separator.in.input.linemapreduce.input.keyvaluelinerecordreader.key.value.separator
　　local.cache.sizemapreduce.tasktracker.cache.local.size
　　map.input.filemapreduce.map.input.file
　　map.input.lengthmapreduce.map.input.length
　　map.input.startmapreduce.map.input.start
　　map.output.key.field.separatormapreduce.map.output.key.field.separator
　　map.output.key.value.fields.specmapreduce.fieldsel.map.output.key.value.fields.spec
　　mapred.acls.enabledmapreduce.cluster.acls.enabled
　　mapred.binary.partitioner.left.offsetmapreduce.partition.binarypartitioner.left.offset
　　mapred.binary.partitioner.right.offsetmapreduce.partition.binarypartitioner.right.offset
　　mapred.cache.archivesmapreduce.job.cache.archives
　　mapred.cache.archives.timestampsmapreduce.job.cache.archives.timestamps
　　mapred.cache.filesmapreduce.job.cache.files
　　mapred.cache.files.timestampsmapreduce.job.cache.files.timestamps
　　mapred.cache.localArchivesmapreduce.job.cache.local.archives
　　mapred.cache.localFilesmapreduce.job.cache.local.files
　　mapred.child.tmpmapreduce.task.tmp.dir
　　mapred.cluster.average.blacklist.thresholdmapreduce.jobtracker.blacklist.average.threshold
　　mapred.cluster.map.memory.mbmapreduce.cluster.mapmemory.mb
　　mapred.cluster.max.map.memory.mbmapreduce.jobtracker.maxmapmemory.mb
　　mapred.cluster.max.reduce.memory.mbmapreduce.jobtracker.maxreducememory.mb
　　mapred.cluster.reduce.memory.mbmapreduce.cluster.reducememory.mb
　　mapred.committer.job.setup.cleanup.neededmapreduce.job.committer.setup.cleanup.needed
　　mapred.compress.map.outputmapreduce.map.output.compress
　　mapred.data.field.separatormapreduce.fieldsel.data.field.separator
　　mapred.debug.out.linesmapreduce.task.debugout.lines
　　mapred.healthChecker.intervalmapreduce.tasktracker.healthchecker.interval
　　mapred.healthChecker.script.argsmapreduce.tasktracker.healthchecker.script.args
　　mapred.healthChecker.script.pathmapreduce.tasktracker.healthchecker.script.path
　　mapred.healthChecker.script.timeoutmapreduce.tasktracker.healthchecker.script.timeout
　　mapred.heartbeats.in.secondmapreduce.jobtracker.heartbeats.in.second
　　mapred.hosts.excludemapreduce.jobtracker.hosts.exclude.filename
　　mapred.hostsmapreduce.jobtracker.hosts.filename
　　mapred.inmem.merge.thresholdmapreduce.reduce.merge.inmem.threshold
　　mapred.input.dir.formatsmapreduce.input.multipleinputs.dir.formats
　　mapred.input.dir.mappersmapreduce.input.multipleinputs.dir.mappers
　　mapred.input.dirmapreduce.input.fileinputformat.inputdir
　　mapred.input.pathFilter.classmapreduce.input.pathFilter.class
　　mapred.jarmapreduce.job.jar
　　mapred.job.classpath.archivesmapreduce.job.classpath.archives
　　mapred.job.classpath.filesmapreduce.job.classpath.files
　　mapred.job.idmapreduce.job.id
　　mapred.jobinit.threadsmapreduce.jobtracker.jobinit.threads
　　mapred.job.map.memory.mbmapreduce.map.memory.mb
　　mapred.job.namemapreduce.job.name
　　mapred.job.prioritymapreduce.job.priority
　　mapred.job.queue.namemapreduce.job.queuename
　　mapred.job.reduce.input.buffer.percentmapreduce.reduce.input.buffer.percent
　　mapred.job.reduce.markreset.buffer.percentmapreduce.reduce.markreset.buffer.percent
　　mapred.job.reduce.memory.mbmapreduce.reduce.memory.mb
　　mapred.job.reduce.total.mem.bytesmapreduce.reduce.memory.totalbytes
　　mapred.job.reuse.jvm.num.tasksmapreduce.job.jvm.numtasks
　　mapred.job.shuffle.input.buffer.percentmapreduce.reduce.shuffle.input.buffer.percent
　　mapred.job.shuffle.merge.percentmapreduce.reduce.shuffle.merge.percent
　　mapred.job.tracker.handler.countmapreduce.jobtracker.handler.count
　　mapred.job.tracker.history.completed.locationmapreduce.jobtracker.jobhistory.completed.location
　　mapred.job.tracker.http.addressmapreduce.jobtracker.http.address
　　mapred.jobtracker.instrumentationmapreduce.jobtracker.instrumentation
　　mapred.jobtracker.job.history.block.sizemapreduce.jobtracker.jobhistory.block.size
　　mapred.job.tracker.jobhistory.lru.cache.sizemapreduce.jobtracker.jobhistory.lru.cache.size
　　mapred.job.trackermapreduce.jobtracker.address
　　mapred.jobtracker.maxtasks.per.jobmapreduce.jobtracker.maxtasks.perjob
　　mapred.job.tracker.persist.jobstatus.activemapreduce.jobtracker.persist.jobstatus.active
　　mapred.job.tracker.persist.jobstatus.dirmapreduce.jobtracker.persist.jobstatus.dir
　　mapred.job.tracker.persist.jobstatus.hoursmapreduce.jobtracker.persist.jobstatus.hours
　　mapred.jobtracker.restart.recovermapreduce.jobtracker.restart.recover
　　mapred.job.tracker.retiredjobs.cache.sizemapreduce.jobtracker.retiredjobs.cache.size
　　mapred.job.tracker.retire.jobsmapreduce.jobtracker.retirejobs
　　mapred.jobtracker.taskalloc.capacitypadmapreduce.jobtracker.taskscheduler.taskalloc.capacitypad
　　mapred.jobtracker.taskSchedulermapreduce.jobtracker.taskscheduler
　　mapred.jobtracker.mapreduce.jobtracker.taskscheduler.maxrunningtasks.perjob
　　taskScheduler.maxRunningTasksPerJob
　　mapred.join.exprmapreduce.join.expr
　　mapred.join.keycomparatormapreduce.join.keycomparator
　　mapred.lazy.output.formatmapreduce.output.lazyoutputformat.outputformat
　　mapred.line.input.format.linespermapmapreduce.input.lineinputformat.linespermap
　　mapred.linerecordreader.maxlengthmapreduce.input.linerecordreader.line.maxlength
　　mapred.local.dirmapreduce.cluster.local.dir
　　mapred.local.dir.minspacekillmapreduce.tasktracker.local.dir.minspacekill
　　mapred.local.dir.minspacestartmapreduce.tasktracker.local.dir.minspacestart
　　mapred.map.child.envmapreduce.map.env
　　mapred.map.child.java.optsmapreduce.map.java.opts
　　mapred.map.child.log.levelmapreduce.map.log.level
　　mapred.map.max.attemptsmapreduce.map.maxattempts
　　mapred.map.output.compression.codecmapreduce.map.output.compress.codec
　　mapred.mapoutput.key.classmapreduce.map.output.key.class
　　mapred.mapoutput.value.classmapreduce.map.output.value.class
　　mapred.mapper.regex.groupmapreduce.mapper.regexmapper..group
　　mapred.mapper.regexmapreduce.mapper.regex
　　mapred.map.task.debug.scriptmapreduce.map.debug.script
　　mapred.map.tasksmapreduce.job.maps
　　mapred.map.tasks.speculative.executionmapreduce.map.speculative
　　mapred.max.map.failures.percentmapreduce.map.failures.maxpercent
　　mapred.max.reduce.failures.percentmapreduce.reduce.failures.maxpercent
　　mapred.max.split.sizemapreduce.input.fileinputformat.split.maxsize
　　mapred.max.tracker.blacklistsmapreduce.jobtracker.tasktracker.maxblacklists
　　mapred.max.tracker.failuresmapreduce.job.maxtaskfailures.per.tracker
　　mapred.merge.recordsBeforeProgressmapreduce.task.merge.progress.records
　　mapred.min.split.sizemapreduce.input.fileinputformat.split.minsize
　　mapred.min.split.size.per.nodemapreduce.input.fileinputformat.split.minsize.per.node
　　mapred.min.split.size.per.rackmapreduce.input.fileinputformat.split.minsize.per.rack
　　mapred.output.compression.codecmapreduce.output.fileoutputformat.compress.codec
　　mapred.output.compression.typemapreduce.output.fileoutputformat.compress.type
　　mapred.output.compressmapreduce.output.fileoutputformat.compress
　　mapred.output.dirmapreduce.output.fileoutputformat.outputdir
　　mapred.output.key.classmapreduce.job.output.key.class
　　mapred.output.key.comparator.classmapreduce.job.output.key.comparator.class
　　mapred.output.value.classmapreduce.job.output.value.class
　　mapred.output.value.groupfn.classmapreduce.job.output.group.comparator.class
　　mapred.permissions.supergroupmapreduce.cluster.permissions.supergroup
　　mapred.pipes.user.inputformatmapreduce.pipes.inputformat
　　mapred.reduce.child.envmapreduce.reduce.env
　　mapred.reduce.child.java.optsmapreduce.reduce.java.opts
　　mapred.reduce.child.log.levelmapreduce.reduce.log.level
　　mapred.reduce.max.attemptsmapreduce.reduce.maxattempts
　　mapred.reduce.parallel.copiesmapreduce.reduce.shuffle.parallelcopies
　　mapred.reduce.slowstart.completed.mapsmapreduce.job.reduce.slowstart.completedmaps
　　mapred.reduce.task.debug.scriptmapreduce.reduce.debug.script
　　mapred.reduce.tasksmapreduce.job.reduces
　　mapred.reduce.tasks.speculative.executionmapreduce.reduce.speculative
　　mapred.seqbinary.output.key.classmapreduce.output.seqbinaryoutputformat.key.class
　　mapred.seqbinary.output.value.classmapreduce.output.seqbinaryoutputformat.value.class
　　mapred.shuffle.connect.timeoutmapreduce.reduce.shuffle.connect.timeout
　　mapred.shuffle.read.timeoutmapreduce.reduce.shuffle.read.timeout
　　mapred.skip.attempts.to.start.skippingmapreduce.task.skip.start.attempts
　　mapred.skip.map.auto.incr.proc.countmapreduce.map.skip.proc-count.auto-incr
　　mapred.skip.map.max.skip.recordsmapreduce.map.skip.maxrecords
　　mapred.skip.onmapreduce.job.skiprecords
　　mapred.skip.out.dirmapreduce.job.skip.outdir
　　mapred.skip.reduce.auto.incr.proc.countmapreduce.reduce.skip.proc-count.auto-incr
　　mapred.skip.reduce.max.skip.groupsmapreduce.reduce.skip.maxgroups
　　mapred.speculative.execution.slowNodeThresholdmapreduce.job.speculative.slownodethreshold
　　mapred.speculative.execution.slowTaskThresholdmapreduce.job.speculative.slowtaskthreshold
　　mapred.speculative.execution.speculativeCapmapreduce.job.speculative.speculativecap
　　mapred.submit.replicationmapreduce.client.submit.file.replication
　　mapred.system.dirmapreduce.jobtracker.system.dir
　　mapred.task.cache.levelsmapreduce.jobtracker.taskcache.levels
　　mapred.task.idmapreduce.task.attempt.id
　　mapred.task.is.mapmapreduce.task.ismap
　　mapred.task.partitionmapreduce.task.partition
　　mapred.task.profilemapreduce.task.profile
　　mapred.task.profile.mapsmapreduce.task.profile.maps
　　mapred.task.profile.paramsmapreduce.task.profile.params
　　mapred.task.profile.reducesmapreduce.task.profile.reduces
　　mapred.task.timeoutmapreduce.task.timeout
　　mapred.tasktracker.dns.interfacemapreduce.tasktracker.dns.interface
　　mapred.tasktracker.dns.nameservermapreduce.tasktracker.dns.nameserver
　　mapred.tasktracker.events.batchsizemapreduce.tasktracker.events.batchsize
　　mapred.tasktracker.expiry.intervalmapreduce.jobtracker.expire.trackers.interval
　　mapred.task.tracker.http.addressmapreduce.tasktracker.http.address
　　mapred.tasktracker.indexcache.mbmapreduce.tasktracker.indexcache.mb
　　mapred.tasktracker.instrumentationmapreduce.tasktracker.instrumentation
　　mapred.tasktracker.map.tasks.maximummapreduce.tasktracker.map.tasks.maximum
　　mapred.tasktracker.memory_calculator_pluginmapreduce.tasktracker.resourcecalculatorplugin
　　mapred.tasktracker.memorycalculatorpluginmapreduce.tasktracker.resourcecalculatorplugin
　　mapred.tasktracker.reduce.tasks.maximummapreduce.tasktracker.reduce.tasks.maximum
　　mapred.task.tracker.report.addressmapreduce.tasktracker.report.address
　　mapred.task.tracker.task-controllermapreduce.tasktracker.taskcontroller
　　mapred.tasktracker.taskmemorymanager.monitoring-intervalmapreduce.tasktracker.taskmemorymanager.monitoringinterval
　　mapred.tasktracker.tasks.sleeptime-before-sigkillmapreduce.tasktracker.tasks.sleeptimebeforesigkill
　　mapred.temp.dirmapreduce.cluster.temp.dir
　　mapred.text.key.comparator.optionsmapreduce.partition.keycomparator.options
　　mapred.text.key.partitioner.optionsmapreduce.partition.keypartitioner.options
　　mapred.textoutputformat.separatormapreduce.output.textoutputformat.separator
　　mapred.tip.idmapreduce.task.id
　　mapreduce.combine.classmapreduce.job.combine.class
　　mapreduce.inputformat.classmapreduce.job.inputformat.class
　　mapreduce.job.counters.limitmapreduce.job.counters.max
　　mapreduce.jobtracker.permissions.supergroupmapreduce.cluster.permissions.supergroup
　　mapreduce.map.classmapreduce.job.map.class
　　mapreduce.outputformat.classmapreduce.job.outputformat.class
　　mapreduce.partitioner.classmapreduce.job.partitioner.class
　　mapreduce.reduce.classmapreduce.job.reduce.class
　　mapred.used.genericoptionsparsermapreduce.client.genericoptionsparser.used
　　mapred.userlog.limit.kbmapreduce.task.userlog.limit.kb
　　mapred.userlog.retain.hoursmapreduce.job.userlog.retain.hours
　　mapred.working.dirmapreduce.job.working.dir
　　mapred.work.output.dirmapreduce.task.output.dir
　　min.num.spills.for.combinemapreduce.map.combine.minspills
　　reduce.output.key.value.fields.specmapreduce.fieldsel.reduce.output.key.value.fields.spec
　　security.job.submission.protocol.aclsecurity.job.client.protocol.acl
　　security.task.umbilical.protocol.aclsecurity.job.task.protocol.acl
　　sequencefile.filter.classmapreduce.input.sequencefileinputfilter.class
　　sequencefile.filter.frequencymapreduce.input.sequencefileinputfilter.frequency
　　sequencefile.filter.regexmapreduce.input.sequencefileinputfilter.regex
　　session.iddfs.metrics.session-id
　　slave.host.namedfs.datanode.hostname
　　slave.host.namemapreduce.tasktracker.host.name
　　tasktracker.contention.trackingmapreduce.tasktracker.contention.tracking
　　tasktracker.http.threadsmapreduce.tasktracker.http.threads
　　topology.node.switch.mapping.implnet.topology.node.switch.mapping.impl
　　topology.script.file.namenet.topology.script.file.name
　　topology.script.number.argsnet.topology.script.number.args
　　user.namemapreduce.job.user.name
　　webinterface.private.actionsmapreduce.jobtracker.webinterface.trusted
　　下面表格列出一些配置属性的相关改变：
　　Deprecated property nameNew property name
　　mapred.create.symlinkNONE - symlinking一直都是开的状态
　　mapreduce.job.cache.symlink.createNONE - symlinking一直都是开的状态