| name | value | description |
| hoop.base.url | http://${hoop.http.hostname}:${hoop.http.port} |
The SCHEMA://HOST:PORT of the Hoop server.
It is sythetized using the 2 system properties 'hoop.http.hostname' and
'hoop.http.port' that are set by the 'hoop.sh' script at start time. If
using virtual servers or HTTPS this property must be set manually.
This property is used to create the file status information of files
which contains a full URI to the file.
|
| hoop.buffer.size | 4096 |
The buffer size used by a read/write request when streaming data from/to
HDFS.
|
| hoop.services |
com.cloudera.lib.service.instrumentation.InstrumentationService,
com.cloudera.lib.service.scheduler.SchedulerService,
com.cloudera.lib.service.security.GroupsService,
com.cloudera.lib.service.security.ProxyUserService,
com.cloudera.lib.service.hadoop.HadoopService
|
Services used by the Hoop server.
|
| kerberos.realm | LOCALHOST |
Kerberos realm, used only if Kerberos authentication is used between
the clients and Hoop or between Hoop and HDFS.
This property is only used to resolve other properties within this
configuration file.
|
| hoop.hostname | ${hoop.http.hostname} |
Property used to synthetize the HTTP Kerberos principal used by Hoop.
This property is only used to resolve other properties within this
configuration file.
|
| hoop.authentication.type | simple |
Defines the authentication mechanism used by Hoop for its HTTP clients.
Valid values are 'simple' and 'kerberos'.
If using 'simple' HTTP clients must specify the username with the
'user.name' query string parameter.
If using 'kerberos' HTTP clients must use HTTP SPNEGO.
|
| hoop.authentication.kerberos.principal | HTTP/${hoop.hostname}@${kerberos.realm} |
The HTTP Kerberos principal used by Hoop in the HTTP endpoint.
The HTTP Kerberos principal MUST start with 'HTTP/' per Kerberos
HTTP SPENGO specification.
|
| hoop.authentication.kerberos.keytab | ${user.home}/hoop.keytab |
The Kerberos keytab file with the credentials for the
HTTP Kerberos principal used by Hoop in the HTTP endpoint.
|
| hoop.proxyuser.#USER#.hosts | * |
List of hosts the '#USER#' user is allowed to perform 'doAs'
operations.
The '#USER#' must be replaced with the username o the user who is
allowed to perform 'doAs' operations.
The value can be the '*' wildcard or a list of hostnames.
For multiple users copy this property and replace the user name
in the property name.
|
| hoop.proxyuser.#USER#.groups | * |
List of groups the '#USER#' user is allowed to impersonate users
from to perform 'doAs' operations.
The '#USER#' must be replaced with the username o the user who is
allowed to perform 'doAs' operations.
The value can be the '*' wildcard or a list of groups.
For multiple users copy this property and replace the user name
in the property name.
|
| namenode.hostname | localhost |
The HDFS Namenode host the Hoop server connects to perform file
system operations.
This property is only used to resolve other properties within this
configuration file.
|
| hoop.hadoop.conf:fs.default.name | hdfs://${namenode.hostname}:8020 |
The HDFS Namenode URI the Hoop server connects to perform file
system operations.
|
| hoop.hadoop.authentication.type | simple |
Defines the authentication mechanism used by Hoop to connect to
the HDFS Namenode.
Valid values are 'simple' and 'kerberos'.
|
| hoop.hadoop.authentication.kerberos.keytab | ${user.home}/hoop.keytab |
The Kerberos keytab file with the credentials for the
Kerberos principal used by Hoop to connect to the HDFS Namenode.
|
| hoop.hadoop.authentication.kerberos.principal | ${user.name}/${hoop.hostname}@${kerberos.realm} |
The Kerberos principal used by Hoop to connect to the HDFS Namenode.
|
| hoop.hadoop.conf:dfs.namenode.kerberos.principal | hdfs/${namenode.hostname}@${kerberos.realm} |
The HDFS Namenode Kerberos principal.
|