dfs.namenode.name.dir
file:///c:/hadoop/hdpdatann/nn
Determines where on the local filesystem the DFS name node
should store the name table. If this is a comma-delimited list
of directories then the name table is replicated in all of the
directories, for redundancy.
true
dfs.support.append
true
to enable dfs append
true
dfs.webhdfs.enabled
true
to enable webhdfs
true
dfs.datanode.failed.volumes.tolerated
0
#of failed disks dn would tolerate
true
dfs.datanode.data.dir
file:///c:/hadoop/hdpdatadn/dn
Determines where on the local filesystem an DFS data node
should store its blocks. If this is a comma-delimited
list of directories, then data will be stored in all named
directories, typically on different devices.
Directories that do not exist are ignored.
true
dfs.checksum.type
CRC32
The checksum method to be used by default. To maintain
compatibility, it is being set to CRC32. Once all migration steps
are complete, we can change it to CRC32C and take advantage of the
additional performance benefit.
dfs.replication.max
50
Maximal block replication.
dfs.heartbeat.interval
3
Determines datanode heartbeat interval in seconds.
dfs.namenode.safemode.threshold-pct
1.0f
Specifies the percentage of blocks that should satisfy
the minimal replication requirement defined by dfs.replication.min.
Values less than or equal to 0 mean not to start in safe mode.
Values greater than 1 will make safe mode permanent.
dfs.datanode.balance.bandwidthPerSec
6250000
Specifies the maximum amount of bandwidth that each datanode
can utilize for the balancing purpose in term of
the number of bytes per second.
dfs.datanode.address
0.0.0.0:50010
dfs.datanode.http.address
0.0.0.0:50075
dfs.datanode.https.address
0.0.0.0:50076
dfs.blocksize
134217728
The default block size for new files, in bytes.
You can use the following suffix (case insensitive): k(kilo),
m(mega), g(giga), t(tera), p(peta), e(exa) to specify the
size (such as 128k, 512m, 1g, etc.), Or provide complete size
in bytes (such as 134217728 for 128 MB).
dfs.namenode.http-address
cc-wvd-ap161.pepcoholdings.biz:50070
The address and the base port where the dfs namenode
web ui will listen on. If the port is 0 then the server will
start on a free port.
true
dfs.https.port
50070
true
dfs.datanode.du.reserved
1073741824
Reserved space in bytes per volume. Always leave this much space free for non dfs use.
dfs.datanode.ipc.address
0.0.0.0:8010
The datanode ipc server address and port.
If the port is 0 then the server will start on a free port.
dfs.blockreport.initialDelay
120
Delay for first block report in seconds.
dfs.datanode.du.pct
0.85f
When calculating remaining space, only use this percentage of the real available space
dfs.namenode.handler.count
40
The number of server threads for the namenode.
dfs.namenode.checkpoint.dir
file:///c:/hadoop/hdpdatann/snn
Determines where on the local filesystem the DFS secondary
name node should store the temporary images to merge.
If this is a comma-delimited list of directories then the image is
replicated in all of the directories for redundancy.
dfs.namenode.checkpoint.edits.dir
file:///c:/hadoop/hdpdatann/snn
Determines where on the local filesystem the DFS secondary
name node should store the temporary edits to merge.
If this is a comma-delimited list of directoires then teh edits is
replicated in all of the directoires for redundancy.
Default value is same as dfs.namenode.checkpoint.dir
dfs.namenode.checkpoint.period
86400
The number of seconds between two periodic checkpoints.
dfs.datanode.max.transfer.threads
1024
Specifies the maximum number of threads to use for
transferring data in and out of the DN.
dfs.permissions.enabled
true
If "true", enable permission checking in HDFS.
If "false", permission checking is turned off,
but all other behavior is unchanged.
Switching from one parameter value to the other does not change the mode,
owner or group of files or directories.
dfs.permissions.superusergroup
hdfs
The name of the group of super-users.
ipc.server.max.response.size
5242880
dfs.block.access.token.enable
false
If "true", access tokens are used as capabilities for accessing datanodes.
If "false", no access tokens are checked on accessing datanodes.
dfs.namenode.secondary.http-address
cc-wvd-ap161a.pepcoholdings.biz:50090
Address of secondary namenode web server
dfs.secondary.https.port
50091
The https port where secondary-namenode binds
dfs.namenode.https-address
cc-wvd-ap161.pepcoholdings.biz:50701
The https address where namenode binds
dfs.datanode.data.dir.perm
755
The permissions that should be there on dfs.data.dir
directories. The datanode will not come up if the permissions are
different on existing dfs.data.dir directories. If the directories
don't exist, they will be created with this permission.
dfs.namenode.accesstime.precision
0
The access time for HDFS file is precise upto this value.
The default value is 1 hour. Setting a value of 0 disables
access times for HDFS.
dfs.cluster.administrators
hdfs
ACL for who all can view the default servlets in the HDFS
ipc.server.read.threadpool.size
5
dfs.encrypt.data.transfer
false
dfs.encrypt.data.transfer.algorithm
3des
dfs.https.enable
false
dfs.replication
1
dfs.hosts.exclude
c:\hadoop\hdp\hadoop-2.7.1.2.4.0.0-169\etc\hadoop\dfs.exclude
dfs.hosts
c:\hadoop\hdp\hadoop-2.7.1.2.4.0.0-169\etc\hadoop\dfs.include