Isilon Properties in CDH 5.5.0

Role groups:

gateway

Advanced

Display Name Description Related Name Default Value API Name Required
Deploy Directory The directory where the client configs will be deployed /etc/hadoop client_config_root_dir true
Use Legacy Blockreader Whether HDFS clients will use the legacy block reader. dfs.client.use.legacy.blockreader false dfs_client_use_legacy_blockreader false
Client Java Configuration Options These are Java command line arguments. Commonly, garbage collection flags or extra debugging flags would be passed here. -Djava.net.preferIPv4Stack=true hbase_client_java_opts false
HDFS Client Advanced Configuration Snippet (Safety Valve) for hdfs-site.xml For advanced use only, a string to be inserted into the client configuration for hdfs-site.xml. hdfs_client_config_safety_valve false
HDFS Client Environment Advanced Configuration Snippet (Safety Valve) for hadoop-env.sh For advanced use only, key-value pairs (one on each line) to be inserted into the client configuration for hadoop-env.sh hdfs_client_env_safety_valve false
Gateway Logging Advanced Configuration Snippet (Safety Valve) For advanced use only, a string to be inserted into log4j.properties for this role only. log4j_safety_valve false

Logs

Display Name Description Related Name Default Value API Name Required
Gateway Logging Threshold The minimum log level for Gateway logs INFO log_threshold false

Monitoring

Display Name Description Related Name Default Value API Name Required
Enable Configuration Change Alerts When set, Cloudera Manager will send alerts when this entity's configuration changes. false enable_config_alerts false

Other

Display Name Description Related Name Default Value API Name Required
Alternatives Priority The priority level that the client configuration will have in the Alternatives system on the hosts. Higher priority levels will cause Alternatives to prefer this configuration over any others. 90 client_config_priority true
Use Trash Move deleted files to the trash so that they can be recovered if necessary. This client side configuration takes effect only if the HDFS service-wide trash is disabled (NameNode Filesystem Trash Interval set to 0) and is ignored otherwise. The trash is not automatically emptied when enabled with this configuration. false dfs_client_use_trash false

Performance

Display Name Description Related Name Default Value API Name Required
Enable HDFS Short-Circuit Read Enable HDFS short-circuit read. This allows a client colocated with the DataNode to read HDFS file blocks directly. This gives a performance boost to distributed clients that are aware of locality. dfs.client.read.shortcircuit false dfs_client_read_shortcircuit false

Resource Management

Display Name Description Related Name Default Value API Name Required
Client Java Heap Size in Bytes Maximum size in bytes for the Java process heap memory. Passed to Java -Xmx. 256 MiB hdfs_client_java_heapsize false

Suppressions

Display Name Description Related Name Default Value API Name Required
Suppress Configuration Validator: CDH Version Validator Whether to suppress configuration warnings produced by the CDH Version Validator configuration validator. false role_config_suppression_cdh_version_validator true
Suppress Parameter Validation: Deploy Directory Whether to suppress configuration warnings produced by the built-in parameter validation for the Deploy Directory parameter. false role_config_suppression_client_config_root_dir true
Suppress Parameter Validation: Client Java Configuration Options Whether to suppress configuration warnings produced by the built-in parameter validation for the Client Java Configuration Options parameter. false role_config_suppression_hbase_client_java_opts true
Suppress Parameter Validation: HDFS Client Advanced Configuration Snippet (Safety Valve) for hdfs-site.xml Whether to suppress configuration warnings produced by the built-in parameter validation for the HDFS Client Advanced Configuration Snippet (Safety Valve) for hdfs-site.xml parameter. false role_config_suppression_hdfs_client_config_safety_valve true
Suppress Parameter Validation: HDFS Client Environment Advanced Configuration Snippet (Safety Valve) for hadoop-env.sh Whether to suppress configuration warnings produced by the built-in parameter validation for the HDFS Client Environment Advanced Configuration Snippet (Safety Valve) for hadoop-env.sh parameter. false role_config_suppression_hdfs_client_env_safety_valve true
Suppress Configuration Validator: HDFS Trash Enabled Validator Whether to suppress configuration warnings produced by the HDFS Trash Enabled Validator configuration validator. false role_config_suppression_hdfs_trash_disabled_validator true
Suppress Parameter Validation: Gateway Logging Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Gateway Logging Advanced Configuration Snippet (Safety Valve) parameter. false role_config_suppression_log4j_safety_valve true

service_wide

Advanced

Display Name Description Related Name Default Value API Name Required
Cluster-wide Advanced Configuration Snippet (Safety Valve) for core-site.xml For advanced use only, a string to be inserted into core-site.xml. Applies to all roles and client configurations in this HDFS service as well as all its dependent services. Any configs added here will be overridden by their default values in HDFS (which can be found in hdfs-default.xml). core_site_safety_valve false
Enable HDFS Block Metadata API Enables DataNode support for the experimental DistributedFileSystem.getFileVBlockStorageLocations API. Applicable to CDH 4.1 and onwards. dfs.datanode.hdfs-blocks-metadata.enabled true dfs_datanode_hdfs_blocks_metadata_enabled false
HDFS Client Advanced Configuration Snippet (Safety Valve) for hdfs-site.xml For advanced use only, a string to be inserted into the client configuration for hdfs-site.xml. hdfs_client_config_safety_valve false
Isilon Service Environment Advanced Configuration Snippet (Safety Valve) For advanced use only, key-value pairs (one on each line) to be inserted into a role's environment. Applies to configurations of all roles in this service except client configuration. ISILON_service_env_safety_valve false
System Group The group that this service's processes should run as. hdfs process_groupname true
System User The user that this service's processes should run as. hdfs process_username true

Monitoring

Display Name Description Related Name Default Value API Name Required
Enable Configuration Change Alerts When set, Cloudera Manager will send alerts when this entity's configuration changes. false enable_config_alerts false

Other

Display Name Description Related Name Default Value API Name Required
Default File System URI The full file system URI, to be emitted as 'fs.default.name' default_fs_name default_fs_name true
HDFS Block Size The default block size in bytes for new HDFS files. Note that this value is also used as the HBase Region Server HLog block size. dfs.blocksize 128 MiB dfs_block_size false
Default Umask Default umask for file and directory creation, specified in an octal value (with a leading 0) fs.permissions.umask-mode 022 dfs_umaskmode false
Compression Codecs Comma-separated list of compression codecs that can be used in job or map compression. 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.DeflateCodec, org.apache.hadoop.io.compress.SnappyCodec, org.apache.hadoop.io.compress.Lz4Codec io_compression_codecs false
Kerberos Authentication Whether Kerberos is enabled for authentication kerberos_authentication false kerberos_authentication true
WebHDFS URL Full URL for the Web Interface of Isilon service. webhdfs_url webhdfs_url false

Performance

Display Name Description Related Name Default Value API Name Required
UNIX Domain Socket path Path on the DataNode's local file system to a UNIX domain socket used for communication between the DataNode and local HDFS clients. This socket is used for Short Circuit Reads. Only the HDFS System User and "root" should have write access to the parent directory and all of its ancestors. This property is supported in CDH 4.2 or later deployments. dfs.domain.socket.path /var/run/hdfs-sockets/dn dfs_domain_socket_path false

Proxy

Display Name Description Related Name Default Value API Name Required
Flume Proxy User Groups Allows the flume user to impersonate any members of a comma-delimited list of groups. The default '*' allows all groups. To disable entirely, use a string that doesn't correspond to a group name, such as '_no_group_'. hadoop.proxyuser.flume.groups * flume_proxy_user_groups_list false
Flume Proxy User Hosts Comma-delimited list of hosts where you want to allow the flume user to impersonate other users. The default '*' allows all hosts. To disable entirely, use a string that doesn't correspond to a host name, such as '_no_host'. hadoop.proxyuser.flume.hosts * flume_proxy_user_hosts_list false
HDFS Proxy User Groups Comma-delimited list of groups to allow the HDFS user to impersonate. The default '*' allows all groups. To disable entirely, use a string that does not correspond to a group name, such as '_no_group_'. hadoop.proxyuser.hdfs.groups * hdfs_proxy_user_groups_list false
HDFS Proxy User Hosts Comma-delimited list of hosts where you want to allow the HDFS user to impersonate other users. The default '*' allows all hosts. To disable entirely, use a string that doesn't correspond to a host name, such as '_no_host'. hadoop.proxyuser.hdfs.hosts * hdfs_proxy_user_hosts_list false
Hive Proxy User Groups Comma-delimited list of groups that you want to allow the Hive user to impersonate. The default '*' allows all groups. To disable entirely, use a string that doesn't correspond to a group name, such as '_no_group_'. hadoop.proxyuser.hive.groups * hive_proxy_user_groups_list false
Hive Proxy User Hosts Comma-delimited list of hosts where you want to allow the Hive user to impersonate other users. The default '*' allows all hosts. To disable entirely, use a string that doesn't correspond to a host name, such as '_no_host'. hadoop.proxyuser.hive.hosts * hive_proxy_user_hosts_list false
HTTP Proxy User Groups Comma-delimited list of groups that you want to allow the HTTP user to impersonate. The default '*' allows all groups. To disable entirely, use a string that doesn't correspond to a group name, such as '_no_group_'. This is used by WebHCat. hadoop.proxyuser.HTTP.groups * HTTP_proxy_user_groups_list false
HTTP Proxy User Hosts Comma-delimited list of hosts where you want to allow the HTTP user to impersonate other users. The default '*' allows all hosts. To disable entirely, use a string that doesn't correspond to a host name, such as '_no_host'. This is used by WebHCat. hadoop.proxyuser.HTTP.hosts * HTTP_proxy_user_hosts_list false
HttpFS Proxy User Groups Comma-delimited list of groups to allow the HttpFS user to impersonate. The default '*' allows all groups. To disable entirely, use a string that does not correspond to a group name, such as '_no_group_'. hadoop.proxyuser.httpfs.groups * httpfs_proxy_user_groups_list false
HttpFS Proxy User Hosts Comma-delimited list of hosts where you allow the HttpFS user to impersonate other users. The default '*' allows all hosts. To disable entirely, use a string that doesn't correspond to a host name, such as '_no_host'. hadoop.proxyuser.httpfs.hosts * httpfs_proxy_user_hosts_list false
Hue Proxy User Groups Comma-delimited list of groups that you want to allow the Hue user to impersonate. The default '*' allows all groups. To disable entirely, use a string that doesn't correspond to a group name, such as '_no_group_'. hadoop.proxyuser.hue.groups * hue_proxy_user_groups_list false
Hue Proxy User Hosts Comma-delimited list of hosts where you want to allow the Hue user to impersonate other users. The default '*' allows all hosts. To disable entirely, use a string that doesn't correspond to a host name, such as '_no_host'. hadoop.proxyuser.hue.hosts * hue_proxy_user_hosts_list false
Oozie Proxy User Groups Allows the oozie superuser to impersonate any members of a comma-delimited list of groups. The default '*' allows all groups. To disable entirely, use a string that doesn't correspond to a group name, such as '_no_group_'. hadoop.proxyuser.oozie.groups * oozie_proxy_user_groups_list false
Oozie Proxy User Hosts Comma-delimited list of hosts where you want to allow the oozie user to impersonate other users. The default '*' allows all hosts. To disable entirely, use a string that doesn't correspond to a host name, such as '_no_host'. hadoop.proxyuser.oozie.hosts * oozie_proxy_user_hosts_list false
Service Monitor Proxy User Groups Allows the Cloudera Service Monitor user to impersonate any members of a comma-delimited list of groups. The default '*' allows all groups. This property is used only if Service Monitor is using a different Kerberos principal than the Hue service. To disable entirely, use a string that does not correspond to a group name, such as '_no_group_'. hadoop.proxyuser.smon.groups * smon_proxy_user_groups_list false
Service Monitor Proxy User Hosts Comma-delimited list of hosts where you want to allow the Cloudera Service Monitor user to impersonate other users. The default '*' allows all hosts. This property is used only if Service Monitor is using a different Kerberos principal than the Hue service. To disable entirely, use a string that does not correspond to a host name, such as '_no_host'. hadoop.proxyuser.smon.hosts * smon_proxy_user_hosts_list false

Replication

Display Name Description Related Name Default Value API Name Required
Replication Factor Default block replication. The number of replications to make when the file is created. The default value is used if a replication number is not specified. dfs.replication 3 dfs_replication false

Security

Display Name Description Related Name Default Value API Name Required
Additional Rules to Map Kerberos Principals to Short Names Additional mapping rules that will be inserted before rules generated from the list of trusted realms and before the default rule. After changing this value and restarting the service, any services depending on this one must be restarted as well. The hadoop.security.auth_to_local property is configured using this information. extra_auth_to_local_rules false
Authorized Admin Groups Comma-separated list of groups authorized to perform admin operations on Hadoop. This is emitted only if authorization is enabled. hadoop_authorized_admin_groups false
Authorized Admin Users Comma-separated list of users authorized to perform admin operations on Hadoop. This is emitted only if authorization is enabled. * hadoop_authorized_admin_users false
Authorized Groups Comma-separated list of groups authorized to used Hadoop. This is emitted only if authorization is enabled. hadoop_authorized_groups false
Authorized Users Comma-separated list of users authorized to used Hadoop. This is emitted only if authorization is enabled. * hadoop_authorized_users false
Hadoop RPC Protection Quality of protection for secured RPC connections between NameNode and HDFS clients. For effective RPC protection, enable Kerberos authentication. hadoop.rpc.protection authentication hadoop_rpc_protection false
Hadoop Secure Authorization Enable authorization hadoop.security.authorization false hadoop_security_authorization false
Trusted Kerberos Realms List of Kerberos realms that Hadoop services should trust. If empty, defaults to the default_realm property configured in the krb5.conf file. After changing this value and restarting the service, all services depending on this service must also be restarted. Adds mapping rules for each domain to the hadoop.security.auth_to_local property in core-site.xml. trusted_realms false

Suppressions

Display Name Description Related Name Default Value API Name Required
Suppress Parameter Validation: Cluster-wide Advanced Configuration Snippet (Safety Valve) for core-site.xml Whether to suppress configuration warnings produced by the built-in parameter validation for the Cluster-wide Advanced Configuration Snippet (Safety Valve) for core-site.xml parameter. false service_config_suppression_core_site_safety_valve true
Suppress Parameter Validation: Default File System URI Whether to suppress configuration warnings produced by the built-in parameter validation for the Default File System URI parameter. false service_config_suppression_default_fs_name true
Suppress Parameter Validation: UNIX Domain Socket path Whether to suppress configuration warnings produced by the built-in parameter validation for the UNIX Domain Socket path parameter. false service_config_suppression_dfs_domain_socket_path true
Suppress Parameter Validation: Replication Factor Whether to suppress configuration warnings produced by the built-in parameter validation for the Replication Factor parameter. false service_config_suppression_dfs_replication true
Suppress Parameter Validation: Additional Rules to Map Kerberos Principals to Short Names Whether to suppress configuration warnings produced by the built-in parameter validation for the Additional Rules to Map Kerberos Principals to Short Names parameter. false service_config_suppression_extra_auth_to_local_rules true
Suppress Parameter Validation: Flume Proxy User Groups Whether to suppress configuration warnings produced by the built-in parameter validation for the Flume Proxy User Groups parameter. false service_config_suppression_flume_proxy_user_groups_list true
Suppress Parameter Validation: Flume Proxy User Hosts Whether to suppress configuration warnings produced by the built-in parameter validation for the Flume Proxy User Hosts parameter. false service_config_suppression_flume_proxy_user_hosts_list true
Suppress Configuration Validator: Gateway Count Validator Whether to suppress configuration warnings produced by the Gateway Count Validator configuration validator. false service_config_suppression_gateway_count_validator true
Suppress Parameter Validation: Authorized Admin Groups Whether to suppress configuration warnings produced by the built-in parameter validation for the Authorized Admin Groups parameter. false service_config_suppression_hadoop_authorized_admin_groups true
Suppress Parameter Validation: Authorized Admin Users Whether to suppress configuration warnings produced by the built-in parameter validation for the Authorized Admin Users parameter. false service_config_suppression_hadoop_authorized_admin_users true
Suppress Parameter Validation: Authorized Groups Whether to suppress configuration warnings produced by the built-in parameter validation for the Authorized Groups parameter. false service_config_suppression_hadoop_authorized_groups true
Suppress Parameter Validation: Authorized Users Whether to suppress configuration warnings produced by the built-in parameter validation for the Authorized Users parameter. false service_config_suppression_hadoop_authorized_users true
Suppress Parameter Validation: HDFS Client Advanced Configuration Snippet (Safety Valve) for hdfs-site.xml Whether to suppress configuration warnings produced by the built-in parameter validation for the HDFS Client Advanced Configuration Snippet (Safety Valve) for hdfs-site.xml parameter. false service_config_suppression_hdfs_client_config_safety_valve true
Suppress Parameter Validation: HDFS Proxy User Groups Whether to suppress configuration warnings produced by the built-in parameter validation for the HDFS Proxy User Groups parameter. false service_config_suppression_hdfs_proxy_user_groups_list true
Suppress Parameter Validation: HDFS Proxy User Hosts Whether to suppress configuration warnings produced by the built-in parameter validation for the HDFS Proxy User Hosts parameter. false service_config_suppression_hdfs_proxy_user_hosts_list true
Suppress Parameter Validation: Hive Proxy User Groups Whether to suppress configuration warnings produced by the built-in parameter validation for the Hive Proxy User Groups parameter. false service_config_suppression_hive_proxy_user_groups_list true
Suppress Parameter Validation: Hive Proxy User Hosts Whether to suppress configuration warnings produced by the built-in parameter validation for the Hive Proxy User Hosts parameter. false service_config_suppression_hive_proxy_user_hosts_list true
Suppress Parameter Validation: HTTP Proxy User Groups Whether to suppress configuration warnings produced by the built-in parameter validation for the HTTP Proxy User Groups parameter. false service_config_suppression_http_proxy_user_groups_list true
Suppress Parameter Validation: HTTP Proxy User Hosts Whether to suppress configuration warnings produced by the built-in parameter validation for the HTTP Proxy User Hosts parameter. false service_config_suppression_http_proxy_user_hosts_list true
Suppress Parameter Validation: HttpFS Proxy User Groups Whether to suppress configuration warnings produced by the built-in parameter validation for the HttpFS Proxy User Groups parameter. false service_config_suppression_httpfs_proxy_user_groups_list true
Suppress Parameter Validation: HttpFS Proxy User Hosts Whether to suppress configuration warnings produced by the built-in parameter validation for the HttpFS Proxy User Hosts parameter. false service_config_suppression_httpfs_proxy_user_hosts_list true
Suppress Parameter Validation: Hue Proxy User Groups Whether to suppress configuration warnings produced by the built-in parameter validation for the Hue Proxy User Groups parameter. false service_config_suppression_hue_proxy_user_groups_list true
Suppress Parameter Validation: Hue Proxy User Hosts Whether to suppress configuration warnings produced by the built-in parameter validation for the Hue Proxy User Hosts parameter. false service_config_suppression_hue_proxy_user_hosts_list true
Suppress Parameter Validation: Compression Codecs Whether to suppress configuration warnings produced by the built-in parameter validation for the Compression Codecs parameter. false service_config_suppression_io_compression_codecs true
Suppress Parameter Validation: Isilon Service Environment Advanced Configuration Snippet (Safety Valve) Whether to suppress configuration warnings produced by the built-in parameter validation for the Isilon Service Environment Advanced Configuration Snippet (Safety Valve) parameter. false service_config_suppression_isilon_service_env_safety_valve true
Suppress Parameter Validation: Oozie Proxy User Groups Whether to suppress configuration warnings produced by the built-in parameter validation for the Oozie Proxy User Groups parameter. false service_config_suppression_oozie_proxy_user_groups_list true
Suppress Parameter Validation: Oozie Proxy User Hosts Whether to suppress configuration warnings produced by the built-in parameter validation for the Oozie Proxy User Hosts parameter. false service_config_suppression_oozie_proxy_user_hosts_list true
Suppress Parameter Validation: System Group Whether to suppress configuration warnings produced by the built-in parameter validation for the System Group parameter. false service_config_suppression_process_groupname true
Suppress Parameter Validation: System User Whether to suppress configuration warnings produced by the built-in parameter validation for the System User parameter. false service_config_suppression_process_username true
Suppress Parameter Validation: Service Monitor Proxy User Groups Whether to suppress configuration warnings produced by the built-in parameter validation for the Service Monitor Proxy User Groups parameter. false service_config_suppression_smon_proxy_user_groups_list true
Suppress Parameter Validation: Service Monitor Proxy User Hosts Whether to suppress configuration warnings produced by the built-in parameter validation for the Service Monitor Proxy User Hosts parameter. false service_config_suppression_smon_proxy_user_hosts_list true
Suppress Parameter Validation: Trusted Kerberos Realms Whether to suppress configuration warnings produced by the built-in parameter validation for the Trusted Kerberos Realms parameter. false service_config_suppression_trusted_realms true
Suppress Parameter Validation: WebHDFS URL Whether to suppress configuration warnings produced by the built-in parameter validation for the WebHDFS URL parameter. false service_config_suppression_webhdfs_url true