MapR 5.0 Documentation : Default core Parameters

PropertyDescription
dfs.bytes-per-checksum

Default value: 512
Default source: code 

dfs.ha.fencing.ssh.connect-timeoutDefault value: 30000
Default source: core-default.xml 
dfs.namenode.checkpoint.dirDefault value:${hadoop.tmp.dir}/dfs/namesecondary
Default source: code 
dfs.namenode.checkpoint.edits.dirDefault value: ${fs.checkpoint.dir}
Default source: code 
dfs.namenode.checkpoint.periodDefault value: 3600
Default source: code 
file.blocksize

Default value: 67108864
Default source: core-default.xml

file.bytes-per-checksum

Default value: 512
Default source: core-default.xml 

file.client-write-packet-sizeDefault value: 65536
Default source: core-default.xml
file.replicationDefault value: 1
Default source:  core-default.xml
file.stream-buffer-sizeDefault value: 4096
Default source: core-default.xml 
fs.AbstractFileSystem.file.impl

Default value: org.apache.hadoop.fs.local.LocalFs

Default source: core-default.xml

fs.AbstractFileSystem.ftp.impl

Default value: org.apache.hadoop.fs.ftp.FtpFs

Default source: core-default.xml

fs.AbstractFileSystem.har.impl

Default value: org.apache.hadoop.fs.HarFs

Default source: core-default.xml

fs.AbstractFileSystem.hdfs.impl

Default value: com.mapr.fs.MFS

Default source: code

fs.AbstractFileSystem.maprfs.impl

Default value: com.mapr.fs.MFS

Default source: code

fs.AbstractFileSystem.viewfs.impl

Default value: org.apache.hadoop.fs.viewfs.ViewFs

Default source: core-default.xml

fs.automatic.close

Default value: TRUE

Default source: core-default.xml

fs.checkpoint.size

Default value: 67108864

Default source: code

fs.client.resolve.remote.symlinks

Default value: TRUE

Default source: core-default.xml

fs.defaultFS

Default value: maprfs:///

Default source: code

fs.df.interval

Default value: 60000

Default source: core-default.xml

fs.du.interval

Default value: 600000

Default source: core-default.xml

fs.file.impl

Default value: org.apache.hadoop.fs.LocalFileSystem

Default source: code

fs.ftp.host

Default value: 0.0.0.0

Default source: core-default.xml

fs.ftp.host.port

Default value: 21

Default source: core-default.xml

fs.ftp.impl

Default value: org.apache.hadoop.fs.ftp.FTPFileSystem

Default source: code

fs.har.impl

Default value: org.apache.hadoop.fs.HarFileSystem

Default source: code

fs.har.impl.disable.cacheDefault value: TRUE
Default source: core-default.xml
fs.hdfs.implDefault value: com.mapr.fs.MapRFileSystem
Default source: code
fs.hftp.implDefault value: org.apache.hadoop.hdfs.HftpFileSystem
Default source: code
fs.hsftp.implDefault value: org.apache.hadoop.hdfs.HsftpFileSystem
Default source: code
fs.kfs.implDefault value: org.apache.hadoop.fs.kfs.KosmosFileSystem
Default source: code
fs.mapr.working.dirDefault value: /user/$USERNAME/
Default source: code
fs.maprfs.implDefault value: com.mapr.fs.MapRFileSystem
Default source: code
fs.permissions.umask-modeDefault value: 22
Default source: core-default.xml
fs.ramfs.implDefault value: org.apache.hadoop.fs.InMemoryFileSystem
Default source: code
fs.s3.block.sizeDefault value: 33554432
Default source: code
fs.s3.blockSizeDefault value: 33554432
Default source: code
fs.s3.buffer.dirDefault value: ${hadoop.tmp.dir}/s3
Default source: core-default.xml
fs.s3.implDefault value: org.apache.hadoop.fs.s3native.NativeS3FileSystem
Default source: code
fs.s3.maxRetriesDefault value: 4
Default source: core-default.xml
fs.s3.sleepTimeSecondsDefault value: 10
Default source: core-default.xml
fs.s3a.attempts.maximumDefault value: 10
Default source: core-default.xml
fs.s3a.buffer.dirDefault value: ${hadoop.tmp.dir}/s3a
Default source: core-default.xml
fs.s3a.connection.establish.timeoutDefault value: 5000
Default source: core-default.xml
fs.s3a.connection.maximumDefault value: 15
Default source: core-default.xml
fs.s3a.connection.ssl.enabledDefault value: TRUE
Default source: core-default.xml
fs.s3a.connection.timeoutDefault value: 50000
Default source: core-default.xml
fs.s3a.fast.buffer.sizeDefault value: 1048576
Default source: core-default.xml
fs.s3a.fast.uploadDefault value: FALSE
Default source: core-default.xml
fs.s3a.implDefault value: org.apache.hadoop.fs.s3a.S3AFileSystem
Default source: core-default.xml
fs.s3a.max.total.tasksDefault value: 1000
Default source: core-default.xml
fs.s3a.multipart.purgeDefault value: FALSE
Default source: core-default.xml
fs.s3a.multipart.purge.ageDefault value: 86400
Default source: core-default.xml
fs.s3a.multipart.sizeDefault value: 104857600
Default source: core-default.xml
fs.s3a.multipart.thresholdDefault value: 2147483647
Default source: core-default.xml
fs.s3a.paging.maximumDefault value: 5000
Default source: core-default.xml
fs.s3a.threads.coreDefault value: 15
Default source: core-default.xml
fs.s3a.threads.keepalivetimeDefault value: 60
Default source: core-default.xml
fs.s3a.threads.maxDefault value: 256
Default source: core-default.xml
fs.s3n.block.sizeDefault value: 33554432
Default source: code
fs.s3n.blockSizeDefault value: 33554432
Default source: code
fs.s3n.implDefault value: org.apache.hadoop.fs.s3native.NativeS3FileSystem
Default source: code
fs.s3n.multipart.copy.block.sizeDefault value: 5368709120
Default source: core-default.xml
fs.s3n.multipart.uploads.block.sizeDefault value: 67108864
Default source: core-default.xml
fs.s3n.multipart.uploads.enabledDefault value: FALSE
Default source: core-default.xml
fs.swift.implDefault value: org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystem
Default source: core-default.xml
fs.trash.checkpoint.intervalDefault value: 0
Default source: core-default.xml
fs.trash.intervalDefault value: 0
Default source: core-default.xml
fs.webhdfs.implDefault value: org.apache.hadoop.hdfs.web.WebHdfsFileSystem
Default source: code
ftp.blocksizeDefault value: 67108864
Default source: core-default.xml
ftp.bytes-per-checksumDefault value: 512
Default source: core-default.xml
ftp.client-write-packet-sizeDefault value: 65536
Default source: core-default.xml
ftp.replicationDefault value: 3
Default source: core-default.xml
ftp.stream-buffer-sizeDefault value: 4096
Default source: core-default.xml
ha.failover-controller.cli-check.rpc-timeout.msDefault value: 20000
Default source: core-default.xml
ha.failover-controller.graceful-fence.connection.retriesDefault value: 1
Default source: core-default.xml
ha.failover-controller.graceful-fence.rpc-timeout.msDefault value: 5000
Default source: core-default.xml
ha.failover-controller.new-active.rpc-timeout.msDefault value: 60000
Default source: core-default.xml
ha.health-monitor.check-interval.msDefault value: 1000
Default source: core-default.xml
ha.health-monitor.connect-retry-interval.msDefault value: 1000
Default source: core-default.xml
ha.health-monitor.rpc-timeout.msDefault value: 45000
Default source: core-default.xml
ha.health-monitor.sleep-after-disconnect.msDefault value: 1000
Default source: core-default.xml
ha.zookeeper.aclDefault value: world:anyone:rwcda
Default source: core-default.xml
ha.zookeeper.parent-znodeDefault value: /hadoop-ha
Default source: core-default.xml
ha.zookeeper.session-timeout.msDefault value: 5000
Default source: core-default.xml
hadoop.common.configuration.versionDefault value: 0.23.0
Default source: core-default.xml
hadoop.http.authentication.kerberos.keytabDefault value: ${user.home}/hadoop.keytab
Default source: core-default.xml
hadoop.http.authentication.kerberos.principalDefault value: HTTP/_HOST@LOCALHOST
Default source: core-default.xml
hadoop.http.authentication.signature.secretDefault value: com.mapr.security.maprauth.MaprSignatureSecretFactory
Default source: code
hadoop.http.authentication.signature.secret.fileDefault value: ${user.home}/hadoop-http-auth-signature-secret
Default source: core-default.xml
hadoop.http.authentication.signer.secret.providerDefault value: random
Default source: code
hadoop.http.authentication.simple.anonymous.allowedDefault value: TRUE
Default source: core-default.xml
hadoop.http.authentication.token.validityDefault value: 36000
Default source: core-default.xml
hadoop.http.authentication.typeDefault value: simple
Default source: core-default.xml
hadoop.http.filter.initializersDefault value: org.apache.hadoop.http.lib.StaticUserWebFilter
Default source: core-default.xml
hadoop.http.staticuser.userDefault value: unknown
Default source: core-default.xml
hadoop.jetty.logs.serve.aliasesDefault value: TRUE
Default source: core-default.xml
hadoop.kerberos.kinit.commandDefault value: kinit
Default source: core-default.xml
hadoop.logfile.countDefault value: 10
Default source: code
hadoop.logfile.sizeDefault value: 10000000
Default source: code
hadoop.registry.jaas.contextDefault value: Client
Default source: core-default.xml
hadoop.registry.rm.enabledDefault value: FALSE
Default source: core-default.xml
hadoop.registry.secureDefault value: FALSE
Default source: core-default.xml
hadoop.registry.system.aclsDefault value: sasl:yarn@, sasl:mapred@, sasl:hdfs@
Default source: core-default.xml
hadoop.registry.zk.connection.timeout.msDefault value: 15000
Default source: core-default.xml
hadoop.registry.zk.quorumDefault value: localhost:2181
Default source: core-default.xml
hadoop.registry.zk.retry.ceiling.msDefault value: 60000
Default source: core-default.xml
hadoop.registry.zk.retry.interval.msDefault value: 1000
Default source: core-default.xml
hadoop.registry.zk.retry.timesDefault value: 5
Default source: core-default.xml
hadoop.registry.zk.rootDefault value: /registry
Default source: core-default.xml
hadoop.registry.zk.session.timeout.msDefault value: 60000
Default source: core-default.xml
hadoop.rpc.protectionDefault value: authentication
Default source: core-default.xml
hadoop.rpc.socket.factory.class.defaultDefault value: org.apache.hadoop.net.StandardSocketFactory
Default source: core-default.xml
hadoop.security.authenticationDefault value: SIMPLE
Default source: code 
hadoop.security.authorizationDefault value: FALSE
Default source: core-default.xml
hadoop.security.crypto.buffer.sizeDefault value: 8192
Default source: core-default.xml
hadoop.security.crypto.cipher.suiteDefault value: AES/CTR/NoPadding
Default source: core-default.xml
hadoop.security.crypto.codec.classes.aes.ctr.nopadding

Default value: org.apache.hadoop.crypto.OpensslAesCtrCryptoCodec,

org.apache.hadoop.crypto.JceAesCtrCryptoCodec


Default source: core-default.xml

hadoop.security.group.mappingDefault value: org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback
Default source: core-default.xml
hadoop.security.group.mapping.ldap.directory.search.timeoutDefault value: 10000
Default source: core-default.xml
hadoop.security.group.mapping.ldap.search.attr.group.nameDefault value: cn
Default source: core-default.xml
hadoop.security.group.mapping.ldap.search.attr.memberDefault value: member
Default source: core-default.xml
hadoop.security.group.mapping.ldap.search.filter.groupDefault value: (objectClass=group)
Default source: core-default.xml
hadoop.security.group.mapping.ldap.search.filter.userDefault value: (&(objectClass=user)(sAMAccountName={0}))
Default source: core-default.xml
hadoop.security.group.mapping.ldap.sslDefault value: FALSE
Default source: core-default.xml
hadoop.security.groups.cache.secsDefault value: 300
Default source: core-default.xml
hadoop.security.groups.cache.warn.after.msDefault value: 5000
Default source: core-default.xml
hadoop.security.groups.negative-cache.secsDefault value: 30
Default source: core-default.xml
hadoop.security.instrumentation.requires.adminDefault value: FALSE
Default source: core-default.xml
hadoop.security.java.secure.random.algorithmDefault value: SHA1PRNG
Default source: core-default.xml
hadoop.security.java.security.login.config.jar.pathDefault value: /mapr.login.conf
Default source: code
hadoop.security.kms.client.authentication.retry-countDefault value: 1
Default source: core-default.xml
hadoop.security.kms.client.encrypted.key.cache.expiryDefault value: 43200000
Default source: core-default.xml
hadoop.security.kms.client.encrypted.key.cache.low-watermarkDefault value: 0.3f
Default source: core-default.xml
hadoop.security.kms.client.encrypted.key.cache.num.refill.threadsDefault value: 2
Default source: core-default.xml
hadoop.security.kms.client.encrypted.key.cache.sizeDefault value: 500
Default source: core-default.xml
hadoop.security.random.device.file.pathDefault value: /dev/urandom
Default source: core-default.xml
hadoop.security.uid.cache.secsDefault value: 14400
Default source: core-default.xml
hadoop.ssl.client.confDefault value: ssl-client.xml
Default source: core-default.xml
hadoop.ssl.enabledDefault value: FALSE
Default source: core-default.xml
hadoop.ssl.enabled.protocolsDefault value: TLSv1
Default source: core-default.xml
hadoop.ssl.exclude.cipher.suites

Default value: SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA,

SSL_RSA_EXPORT_WITH_DES40_CBC_SHA,

SSL_RSA_EXPORT_WITH_RC4_40_MD5
 

Default source: code

hadoop.ssl.hostname.verifierDefault value: DEFAULT
Default source: core-default.xml
hadoop.ssl.keystores.factory.classDefault value: org.apache.hadoop.security.ssl.FileBasedKeyStoresFactory
Default source: core-default.xml
hadoop.ssl.require.client.certDefault value: FALSE
Default source: core-default.xml
hadoop.ssl.server.confDefault value: ssl-server.xml
Default source: core-default.xml
hadoop.tmp.dirDefault value: /tmp/hadoop-${user.name}
Default source: core-default.xml
hadoop.user.group.static.mapping.overridesDefault value: dr.who=;
Default source: core-default.xml
hadoop.util.hash.typeDefault value: murmur
Default source: core-default.xml
hadoop.work.around.non.threadsafe.getpwuidDefault value: FALSE
Default source: core-default.xml
hadoop.workaround.non.threadsafe.getpwuidDefault value: FALSE
Default source: code
io.bytes.per.checksumDefault value: 512
Default source: core-default.xml
io.compression.codec.bzip2.libraryDefault value: system-native
Default source: core-default.xml
io.compression.codecs

Default value: org.apache.hadoop.io.compress.DefaultCodec,

org.apache.hadoop.io.compress.GzipCodec,

org.apache.hadoop.io.compress.BZip2Codec,

org.apache.hadoop.io.compress.DeflateCodec,

org.apache.hadoop.io.compress.SnappyCodec


Default source: code

io.file.buffer.sizeDefault value: 8192
Default source: code
io.map.index.intervalDefault value: 128
Default source: core-default.xml
io.map.index.skipDefault value: 0
Default source: core-default.xml
io.mapfile.bloom.error.rateDefault value: 0.005
Default source: core-default.xml
io.mapfile.bloom.sizeDefault value: 1048576
Default source: core-default.xml
io.native.lib.availableDefault value: TRUE
Default source: core-default.xml
io.seqfile.compress.blocksizeDefault value: 1000000
Default source: core-default.xml
io.seqfile.lazydecompressDefault value: TRUE
Default source: core-default.xml
io.seqfile.local.dirDefault value: ${hadoop.tmp.dir}/io/local
Default source: core-default.xml
io.seqfile.sorter.recordlimitDefault value: 1000000
Default source: core-default.xml
io.serializationsDefault value: org.apache.hadoop.io.serializer.WritableSerialization
Default source: code
io.skip.checksum.errorsDefault value: FALSE
Default source: core-default.xml
ipc.client.connect.max.retriesDefault value: 10
Default source: core-default.xml
ipc.client.connect.max.retries.on.timeoutsDefault value: 45
Default source: core-default.xml
ipc.client.connect.retry.intervalDefault value: 1000
Default source: core-default.xml
ipc.client.connect.timeoutDefault value: 20000
Default source: core-default.xml
ipc.client.connection.maxidletimeDefault value: 10000
Default source: core-default.xml
ipc.client.fallback-to-simple-auth-allowedDefault value: FALSE
Default source: core-default.xml
ipc.client.idlethresholdDefault value: 4000
Default source: core-default.xml
ipc.client.kill.maxDefault value: 10
Default source: core-default.xml
ipc.client.max.connection.setup.timeoutDefault value: 20
Default source: code
ipc.client.tcpnodelayDefault value: TRUE
Default source: code
ipc.server.listen.queue.sizeDefault value: 128
Default source: core-default.xml
ipc.server.max.connectionsDefault value: 0
Default source: core-default.xml
ipc.server.tcpnodelayDefault value: TRUE
Default source: code
mapr.homeDefault value: /opt/mapr
Default source: code
mapr.hostDefault value: <hostname>
Default source: code
mapr.localvolumes.pathDefault value: /var/mapr/local
Default source: code
mapr.mapred.localvolume.mount.pathDefault value: ${mapr.localvolumes.path}/${mapr.host}/mapred
Default source: code
mapr.mapred.localvolume.root.dir.pathDefault value: ${mapr.mapred.localvolume.mount.path}/${mapr.mapred.localvolume.root.dir.name}
Default source: code
net.topology.implDefault value: org.apache.hadoop.net.NetworkTopology
Default source: core-default.xml
net.topology.node.switch.mapping.implDefault value: org.apache.hadoop.net.ScriptBasedMapping
Default source: core-default.xml
net.topology.script.number.argsDefault value: 100
Default source: core-default.xml
nfs.exports.allowed.hostsDefault value: * rw
Default source: core-default.xml
rpc.metrics.quantile.enableDefault value: FALSE
Default source: core-default.xml
s3.blocksizeDefault value: 67108864
Default source: core-default.xml
s3.bytes-per-checksumDefault value: 512
Default source: core-default.xml
s3.client-write-packet-sizeDefault value: 65536
Default source: core-default.xml
s3.replicationDefault value: 3
Default source: core-default.xml
s3.stream-buffer-sizeDefault value: 4096
Default source: core-default.xml
s3native.blocksizeDefault value: 67108864
Default source: core-default.xml
s3native.bytes-per-checksumDefault value: 512
Default source: core-default.xml
s3native.client-write-packet-sizeDefault value: 65536
Default source: core-default.xml
s3native.replicationDefault value: 3
Default source: core-default.xml
s3native.stream-buffer-sizeDefault value: 4096
Default source: core-default.xml
tfile.fs.input.buffer.sizeDefault value: 262144
Default source: core-default.xml
tfile.fs.output.buffer.sizeDefault value: 262144
Default source: core-default.xml
tfile.io.chunk.sizeDefault value: 1048576
Default source: core-default.xml