TezConfiguration (tez-api 0.6.0 API)

java.lang.Object
- org.apache.hadoop.conf.Configuration
- - org.apache.tez.dag.api.TezConfiguration

All Implemented Interfaces:

Iterable<Map.Entry<String,String>>, org.apache.hadoop.io.Writable
```
@InterfaceAudience.Public
public class TezConfiguration
extends org.apache.hadoop.conf.Configuration
```
Defines the configurations for Tez. These configurations are typically specified in tez-site.xml on the client machine where TezClient is used to launch the Tez application. tez-site.xml is expected to be picked up from the classpath of the client process.

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`DAG_RECOVERY_ENABLED` Boolean value.
`static boolean`	`DAG_RECOVERY_ENABLED_DEFAULT`
`static String`	`DAG_RECOVERY_FILE_IO_BUFFER_SIZE` Int value.
`static int`	`DAG_RECOVERY_FILE_IO_BUFFER_SIZE_DEFAULT`
`static String`	`DAG_RECOVERY_FLUSH_INTERVAL_SECS` Int value.
`static int`	`DAG_RECOVERY_FLUSH_INTERVAL_SECS_DEFAULT`
`static String`	`DAG_RECOVERY_MAX_UNFLUSHED_EVENTS` Int value.
`static int`	`DAG_RECOVERY_MAX_UNFLUSHED_EVENTS_DEFAULT`
`static String`	`TASK_HEARTBEAT_TIMEOUT_CHECK_MS` Int value.
`static String`	`TASK_HEARTBEAT_TIMEOUT_MS` Int value.
`static String`	`TEZ_AM_ACLS_ENABLED` Boolean value.
`static boolean`	`TEZ_AM_ACLS_ENABLED_DEFAULT`
`static String`	`TEZ_AM_ALLOW_DISABLED_TIMELINE_DOMAINS` Boolean value.
`static boolean`	`TEZ_AM_ALLOW_DISABLED_TIMELINE_DOMAINS_DEFAULT`
`static String`	`TEZ_AM_CLIENT_AM_PORT_RANGE` String value.
`static String`	`TEZ_AM_CLIENT_THREAD_COUNT` Int value.
`static int`	`TEZ_AM_CLIENT_THREAD_COUNT_DEFAULT`
`static String`	`TEZ_AM_COMMIT_ALL_OUTPUTS_ON_DAG_SUCCESS` Boolean value.
`static boolean`	`TEZ_AM_COMMIT_ALL_OUTPUTS_ON_DAG_SUCCESS_DEFAULT`
`static String`	`TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MAX_MILLIS` Int value.
`static long`	`TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MAX_MILLIS_DEFAULT`
`static String`	`TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MIN_MILLIS` Int value.
`static long`	`TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MIN_MILLIS_DEFAULT`
`static String`	`TEZ_AM_CONTAINER_REUSE_ENABLED` Boolean value.
`static boolean`	`TEZ_AM_CONTAINER_REUSE_ENABLED_DEFAULT`
`static String`	`TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS` Int value.
`static long`	`TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS_DEFAULT`
`static String`	`TEZ_AM_CONTAINER_REUSE_NON_LOCAL_FALLBACK_ENABLED` Boolean value.
`static boolean`	`TEZ_AM_CONTAINER_REUSE_NON_LOCAL_FALLBACK_ENABLED_DEFAULT`
`static String`	`TEZ_AM_CONTAINER_REUSE_RACK_FALLBACK_ENABLED` Boolean value.
`static boolean`	`TEZ_AM_CONTAINER_REUSE_RACK_FALLBACK_ENABLED_DEFAULT`
`static String`	`TEZ_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT` Int value.
`static int`	`TEZ_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT_DEFAULT`
`static String`	`TEZ_AM_DAG_SCHEDULER_CLASS` String value.
`static String`	`TEZ_AM_DAG_SCHEDULER_CLASS_DEFAULT`
`static String`	`TEZ_AM_DISABLE_CLIENT_VERSION_CHECK` Boolean value.
`static boolean`	`TEZ_AM_DISABLE_CLIENT_VERSION_CHECK_DEFAULT`
`static String`	`TEZ_AM_INLINE_TASK_EXECUTION_MAX_TASKS` Int value.
`static int`	`TEZ_AM_INLINE_TASK_EXECUTION_MAX_TASKS_DEFAULT`
`static String`	`TEZ_AM_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS` String value.
`static String`	`TEZ_AM_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS_DEFAULT`
`static String`	`TEZ_AM_LAUNCH_CMD_OPTS` String value.
`static String`	`TEZ_AM_LAUNCH_CMD_OPTS_DEFAULT`
`static String`	`TEZ_AM_LAUNCH_ENV` String value.
`static String`	`TEZ_AM_LAUNCH_ENV_DEFAULT`
`static String`	`TEZ_AM_LEGACY_SPECULATIVE_SLOWTASK_THRESHOLD` Float value.
`static String`	`TEZ_AM_LOG_LEVEL` Root Logging level passed to the Tez app master.
`static String`	`TEZ_AM_LOG_LEVEL_DEFAULT`
`static String`	`TEZ_AM_MAX_APP_ATTEMPTS` Int value.
`static int`	`TEZ_AM_MAX_APP_ATTEMPTS_DEFAULT`
`static String`	`TEZ_AM_MAX_TASK_FAILURES_PER_NODE` Int value.
`static int`	`TEZ_AM_MAX_TASK_FAILURES_PER_NODE_DEFAULT`
`static String`	`TEZ_AM_MODIFY_ACLS` String value.
`static String`	`TEZ_AM_NODE_BLACKLISTING_ENABLED` Boolean value.
`static boolean`	`TEZ_AM_NODE_BLACKLISTING_ENABLED_DEFAULT`
`static String`	`TEZ_AM_NODE_BLACKLISTING_IGNORE_THRESHOLD` Int value.
`static int`	`TEZ_AM_NODE_BLACKLISTING_IGNORE_THRESHOLD_DEFAULT`
`static String`	`TEZ_AM_PREEMPTION_HEARTBEATS_BETWEEN_PREEMPTIONS` Int value.
`static int`	`TEZ_AM_PREEMPTION_HEARTBEATS_BETWEEN_PREEMPTIONS_DEFAULT`
`static String`	`TEZ_AM_PREEMPTION_PERCENTAGE` Int value.
`static int`	`TEZ_AM_PREEMPTION_PERCENTAGE_DEFAULT`
`static String`	`TEZ_AM_RESOURCE_CPU_VCORES` Int value.
`static int`	`TEZ_AM_RESOURCE_CPU_VCORES_DEFAULT`
`static String`	`TEZ_AM_RESOURCE_MEMORY_MB` Int value.
`static int`	`TEZ_AM_RESOURCE_MEMORY_MB_DEFAULT`
`static String`	`TEZ_AM_RM_HEARTBEAT_INTERVAL_MS_MAX` Int value.
`static int`	`TEZ_AM_RM_HEARTBEAT_INTERVAL_MS_MAX_DEFAULT`
`static String`	`TEZ_AM_SESSION_MIN_HELD_CONTAINERS` Int value.
`static int`	`TEZ_AM_SESSION_MIN_HELD_CONTAINERS_DEFAULT`
`static String`	`TEZ_AM_SESSION_MODE` Boolean value.
`static boolean`	`TEZ_AM_SESSION_MODE_DEFAULT`
`static String`	`TEZ_AM_SPECULATION_ENABLED`
`static boolean`	`TEZ_AM_SPECULATION_ENABLED_DEFAULT`
`static String`	`TEZ_AM_STAGING_DIR` String value.
`static String`	`TEZ_AM_STAGING_DIR_DEFAULT`
`static String`	`TEZ_AM_STAGING_SCRATCH_DATA_AUTO_DELETE` Boolean value.
`static boolean`	`TEZ_AM_STAGING_SCRATCH_DATA_AUTO_DELETE_DEFAULT`
`static String`	`TEZ_AM_TASK_LISTENER_THREAD_COUNT` Int value.
`static int`	`TEZ_AM_TASK_LISTENER_THREAD_COUNT_DEFAULT`
`static String`	`TEZ_AM_TASK_MAX_FAILED_ATTEMPTS` Int value.
`static int`	`TEZ_AM_TASK_MAX_FAILED_ATTEMPTS_DEFAULT`
`static String`	`TEZ_AM_VIEW_ACLS` String value.
`static String`	`TEZ_AUX_URIS` Auxiliary resources to be localized for the Tez AM and all its containers.
`static boolean`	`TEZ_CANCEL_DELEGATION_TOKENS_ON_COMPLETION_DEFAULT`
`static String`	`TEZ_CLUSTER_ADDITIONAL_CLASSPATH_PREFIX` String value.
`static String`	`TEZ_CONTAINER_MAX_JAVA_HEAP_FRACTION` Double value.
`static double`	`TEZ_CONTAINER_MAX_JAVA_HEAP_FRACTION_DEFAULT`
`static String`	`TEZ_COUNTERS_COUNTER_NAME_MAX_LENGTH` Int value.
`static int`	`TEZ_COUNTERS_COUNTER_NAME_MAX_LENGTH_DEFAULT`
`static String`	`TEZ_COUNTERS_GROUP_NAME_MAX_LENGTH` Int value.
`static int`	`TEZ_COUNTERS_GROUP_NAME_MAX_LENGTH_DEFAULT`
`static String`	`TEZ_COUNTERS_MAX` Int value.
`static int`	`TEZ_COUNTERS_MAX_DEFAULT`
`static String`	`TEZ_COUNTERS_MAX_GROUPS` Int value.
`static int`	`TEZ_COUNTERS_MAX_GROUPS_DEFAULT`
`static String`	`TEZ_CREDENTIALS_PATH` String value that is a file path.
`static String`	`TEZ_GENERATE_DEBUG_ARTIFACTS`
`static boolean`	`TEZ_GENERATE_DEBUG_ARTIFACTS_DEFAULT`
`static String`	`TEZ_HISTORY_LOGGING_SERVICE_CLASS` String value that is a class name.
`static String`	`TEZ_HISTORY_LOGGING_SERVICE_CLASS_DEFAULT`
`static String`	`TEZ_IGNORE_LIB_URIS` Boolean value.
`static String`	`TEZ_LIB_URIS` String value to a file path.
`static String`	`TEZ_LOCAL_MODE` Boolean value.
`static boolean`	`TEZ_LOCAL_MODE_DEFAULT`
`static String`	`TEZ_QUEUE_NAME` String value.
`static String`	`TEZ_SESSION_AM_DAG_SUBMIT_TIMEOUT_SECS` Int value.
`static int`	`TEZ_SESSION_AM_DAG_SUBMIT_TIMEOUT_SECS_DEFAULT`
`static String`	`TEZ_SESSION_CLIENT_TIMEOUT_SECS` Int value.
`static int`	`TEZ_SESSION_CLIENT_TIMEOUT_SECS_DEFAULT`
`static String`	`TEZ_SIMPLE_HISTORY_LOGGING_DIR` String value.
`static String`	`TEZ_SIMPLE_HISTORY_LOGGING_MAX_ERRORS` Int value.
`static int`	`TEZ_SIMPLE_HISTORY_LOGGING_MAX_ERRORS_DEFAULT`
`static String`	`TEZ_SITE_XML`
`static String`	`TEZ_TASK_AM_HEARTBEAT_COUNTER_INTERVAL_MS` Int value.
`static int`	`TEZ_TASK_AM_HEARTBEAT_COUNTER_INTERVAL_MS_DEFAULT`
`static String`	`TEZ_TASK_AM_HEARTBEAT_INTERVAL_MS` Int value.
`static int`	`TEZ_TASK_AM_HEARTBEAT_INTERVAL_MS_DEFAULT`
`static String`	`TEZ_TASK_GET_TASK_SLEEP_INTERVAL_MS_MAX` Int value.
`static int`	`TEZ_TASK_GET_TASK_SLEEP_INTERVAL_MS_MAX_DEFAULT`
`static String`	`TEZ_TASK_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS` String value.
`static String`	`TEZ_TASK_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS_DEFAULT`
`static String`	`TEZ_TASK_LAUNCH_CMD_OPTS` String value.
`static String`	`TEZ_TASK_LAUNCH_CMD_OPTS_DEFAULT`
`static String`	`TEZ_TASK_LAUNCH_ENV` String value.
`static String`	`TEZ_TASK_LAUNCH_ENV_DEFAULT`
`static String`	`TEZ_TASK_LOG_LEVEL` Root Logging level passed to the Tez tasks.
`static String`	`TEZ_TASK_LOG_LEVEL_DEFAULT`
`static String`	`TEZ_TASK_MAX_EVENTS_PER_HEARTBEAT` Int value.
`static int`	`TEZ_TASK_MAX_EVENTS_PER_HEARTBEAT_DEFAULT`
`static String`	`TEZ_TASK_RESOURCE_CPU_VCORES` Int value.
`static int`	`TEZ_TASK_RESOURCE_CPU_VCORES_DEFAULT`
`static String`	`TEZ_TASK_RESOURCE_MEMORY_MB` Int value.
`static int`	`TEZ_TASK_RESOURCE_MEMORY_MB_DEFAULT`
`static String`	`TEZ_TASK_SPECIFIC_LAUNCH_CMD_OPTS` Additional launch command options to be added for specific tasks.
`static String`	`TEZ_TASK_SPECIFIC_LAUNCH_CMD_OPTS_LIST` Set of tasks for which specific launch command options need to be added.
`static String`	`TEZ_TASK_SPECIFIC_LOG_LEVEL` Task specific log level.
`static String`	`TEZ_USE_CLUSTER_HADOOP_LIBS` Boolean value.
`static boolean`	`TEZ_USE_CLUSTER_HADOOP_LIBS_DEFAULT`
`static String`	`YARN_ATS_ACL_DAG_DOMAIN_ID`
`static String`	`YARN_ATS_ACL_DOMAINS_AUTO_CREATE`
`static boolean`	`YARN_ATS_ACL_DOMAINS_AUTO_CREATE_DEFAULT`
`static String`	`YARN_ATS_ACL_SESSION_DOMAIN_ID`
`static String`	`YARN_ATS_EVENT_FLUSH_TIMEOUT_MILLIS` Int value.
`static long`	`YARN_ATS_EVENT_FLUSH_TIMEOUT_MILLIS_DEFAULT`
`static String`	`YARN_ATS_MAX_EVENTS_PER_BATCH` Int value.
`static int`	`YARN_ATS_MAX_EVENTS_PER_BATCH_DEFAULT`
`static String`	`YARN_ATS_MAX_POLLING_TIME_PER_EVENT` Int value.
`static int`	`YARN_ATS_MAX_POLLING_TIME_PER_EVENT_DEFAULT`

Constructor Summary

Constructors
Constructor and Description

TezConfiguration()

TezConfiguration(boolean loadDefaults)

TezConfiguration(org.apache.hadoop.conf.Configuration conf)

Constructors
Constructor and Description
`TezConfiguration()`
`TezConfiguration(boolean loadDefaults)`
`TezConfiguration(org.apache.hadoop.conf.Configuration conf)`

Method Summary
- Methods inherited from class org.apache.hadoop.conf.Configuration
  addDefaultResource, addDeprecation, addDeprecation, addDeprecation, addDeprecation, addDeprecations, addResource, addResource, addResource, addResource, addResource, addResource, clear, dumpConfiguration, dumpDeprecatedKeys, get, get, getBoolean, getClass, getClass, getClassByName, getClassByNameOrNull, getClasses, getClassLoader, getConfResourceAsInputStream, getConfResourceAsReader, getDouble, getEnum, getFile, getFinalParameters, getFloat, getInstances, getInt, getInts, getLocalPath, getLong, getLongBytes, getPassword, getPasswordFromConfig, getPasswordFromCredentialProviders, getPattern, getPropertySources, getProps, getRange, getRaw, getResource, getSocketAddr, getSocketAddr, getStringCollection, getStrings, getStrings, getTimeDuration, getTrimmed, getTrimmed, getTrimmedStringCollection, getTrimmedStrings, getTrimmedStrings, getValByRegex, hasWarnedDeprecation, isDeprecated, iterator, main, readFields, reloadConfiguration, set, set, setBoolean, setBooleanIfUnset, setClass, setClassLoader, setDeprecatedProperties, setDouble, setEnum, setFloat, setIfUnset, setInt, setLong, setPattern, setQuietMode, setSocketAddr, setStrings, setTimeDuration, size, toString, unset, updateConnectAddr, updateConnectAddr, write, writeXml, writeXml
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - TEZ_SITE_XML
```
public static final String TEZ_SITE_XML
```
    See Also:
    Constant Field Values
  - TEZ_AM_STAGING_SCRATCH_DATA_AUTO_DELETE
```
public static final String TEZ_AM_STAGING_SCRATCH_DATA_AUTO_DELETE
```
    Boolean value. If true then Tez will try to automatically delete temporary job artifacts that it creates within the specified staging dir. Does not affect any user data.
    
    See Also:
    Constant Field Values
  - TEZ_AM_STAGING_SCRATCH_DATA_AUTO_DELETE_DEFAULT
```
public static final boolean TEZ_AM_STAGING_SCRATCH_DATA_AUTO_DELETE_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_STAGING_DIR
```
public static final String TEZ_AM_STAGING_DIR
```
    String value. Specifies a directory where Tez can create temporary job artifacts.
    
    See Also:
    Constant Field Values
  - TEZ_AM_STAGING_DIR_DEFAULT
```
public static final String TEZ_AM_STAGING_DIR_DEFAULT
```
  - TEZ_CREDENTIALS_PATH
```
public static final String TEZ_CREDENTIALS_PATH
```
    String value that is a file path. Path to a credentials file (with serialized credentials) located on the local file system.
    
    See Also:
    Constant Field Values
  - TEZ_AM_SESSION_MODE
```
public static final String TEZ_AM_SESSION_MODE
```
    Boolean value. Execution mode for the Tez application. True implies session mode. If the client code is written according to best practices then the same code can execute in either mode based on this configuration. Session mode is more aggressive in reserving execution resources and is typically used for interactive applications where multiple DAGs are submitted in quick succession by the same user. For long running applications, one-off executions, batch jobs etc non-session mode is recommended. If session mode is enabled then container reuse is recommended.
    
    See Also:
    Constant Field Values
  - TEZ_AM_SESSION_MODE_DEFAULT
```
public static boolean TEZ_AM_SESSION_MODE_DEFAULT
```
  - TEZ_AM_LOG_LEVEL
```
public static final String TEZ_AM_LOG_LEVEL
```
    Root Logging level passed to the Tez app master. Simple configuration: Set the log level for all loggers. e.g. INFO This sets the log level to INFO for all loggers. Advanced configuration: Set the log level for all classes, along with a different level for some. e.g. DEBUG;org.apache.hadoop.ipc=INFO;org.apache.hadoop.security=INFO This sets the log level for all loggers to DEBUG, expect for the org.apache.hadoop.ipc and org.apache.hadoop.security, which are set to INFO Note: The global log level must always be the first parameter. DEBUG;org.apache.hadoop.ipc=INFO;org.apache.hadoop.security=INFO is valid org.apache.hadoop.ipc=INFO;org.apache.hadoop.security=INFO is not valid
    
    See Also:
    Constant Field Values
  - TEZ_AM_LOG_LEVEL_DEFAULT
```
public static final String TEZ_AM_LOG_LEVEL_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_TASK_LOG_LEVEL
```
public static final String TEZ_TASK_LOG_LEVEL
```
    Root Logging level passed to the Tez tasks. Simple configuration: Set the log level for all loggers. e.g. INFO This sets the log level to INFO for all loggers. Advanced configuration: Set the log level for all classes, along with a different level for some. e.g. DEBUG;org.apache.hadoop.ipc=INFO;org.apache.hadoop.security=INFO This sets the log level for all loggers to DEBUG, expect for the org.apache.hadoop.ipc and org.apache.hadoop.security, which are set to INFO Note: The global log level must always be the first parameter. DEBUG;org.apache.hadoop.ipc=INFO;org.apache.hadoop.security=INFO is valid org.apache.hadoop.ipc=INFO;org.apache.hadoop.security=INFO is not valid
    
    See Also:
    Constant Field Values
  - TEZ_TASK_LOG_LEVEL_DEFAULT
```
public static final String TEZ_TASK_LOG_LEVEL_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_COMMIT_ALL_OUTPUTS_ON_DAG_SUCCESS
```
public static final String TEZ_AM_COMMIT_ALL_OUTPUTS_ON_DAG_SUCCESS
```
    Boolean value. Determines when the final outputs to data sinks are committed. Commit is an output specific operation and typically involves making the output visible for consumption. If the config is true, then the outputs are committed at the end of DAG completion after all constituent vertices have completed. If false, outputs for each vertex are committed after that vertex succeeds. Depending on the desired output visibility and downstream consumer dependencies this value must be appropriately chosen. Defaults to the safe choice of true.
    
    See Also:
    Constant Field Values
  - TEZ_AM_COMMIT_ALL_OUTPUTS_ON_DAG_SUCCESS_DEFAULT
```
public static final boolean TEZ_AM_COMMIT_ALL_OUTPUTS_ON_DAG_SUCCESS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS
```
public static final String TEZ_AM_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS
```
    String value. Command line options which will be prepended to TEZ_AM_LAUNCH_CMD_OPTS during the launch of the AppMaster process. This property will typically be configured to include default options meant to be used by all jobs in a cluster. If required, the values can be overridden per job.
    
    See Also:
    Constant Field Values
  - TEZ_AM_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS_DEFAULT
```
public static final String TEZ_AM_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_LAUNCH_CMD_OPTS
```
public static final String TEZ_AM_LAUNCH_CMD_OPTS
```
    String value. Command line options provided during the launch of the Tez AppMaster process. Its recommended to not set any Xmx or Xms in these launch opts so that Tez can determine them automatically.
    
    See Also:
    Constant Field Values
  - TEZ_AM_LAUNCH_CMD_OPTS_DEFAULT
```
public static final String TEZ_AM_LAUNCH_CMD_OPTS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_TASK_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS
```
public static final String TEZ_TASK_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS
```
    String value. Command line options which will be prepended to TEZ_TASK_LAUNCH_CMD_OPTS during the launch of Tez tasks. This property will typically be configured to include default options meant to be used by all jobs in a cluster. If required, the values can be overridden per job.
    
    See Also:
    Constant Field Values
  - TEZ_TASK_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS_DEFAULT
```
public static final String TEZ_TASK_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_TASK_LAUNCH_CMD_OPTS
```
public static final String TEZ_TASK_LAUNCH_CMD_OPTS
```
    String value. Command line options provided during the launch of Tez Task processes. Its recommended to not set any Xmx or Xms in these launch opts so that Tez can determine them automatically.
    
    See Also:
    Constant Field Values
  - TEZ_TASK_LAUNCH_CMD_OPTS_DEFAULT
```
public static final String TEZ_TASK_LAUNCH_CMD_OPTS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_CONTAINER_MAX_JAVA_HEAP_FRACTION
```
public static final String TEZ_CONTAINER_MAX_JAVA_HEAP_FRACTION
```
    Double value. Tez automatically determines the Xmx for the JVMs used to run Tez tasks and app masters. This feature is enabled if the user has not specified Xmx or Xms values in the launch command opts. Doing automatic Xmx calculation is preferred because Tez can determine the best value based on actual allocation of memory to tasks the cluster. The value if used as a fraction that is applied to the memory allocated Factor to size Xmx based on container memory size. Value should be greater than 0 and less than 1.
    
    See Also:
    Constant Field Values
  - TEZ_CONTAINER_MAX_JAVA_HEAP_FRACTION_DEFAULT
```
public static final double TEZ_CONTAINER_MAX_JAVA_HEAP_FRACTION_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_LAUNCH_ENV
```
public static final String TEZ_AM_LAUNCH_ENV
```
    String value. Env settings for the Tez AppMaster process. Should be specified as a comma-separated of key-value pairs where each pair is defined as KEY=VAL e.g. "LD_LIBRARY_PATH=.,USERNAME=foo" These take least precedence compared to other methods of setting env. These get added to the app master environment prior to launching it.
    
    See Also:
    Constant Field Values
  - TEZ_AM_LAUNCH_ENV_DEFAULT
```
public static final String TEZ_AM_LAUNCH_ENV_DEFAULT
```
  - TEZ_TASK_LAUNCH_ENV
```
public static final String TEZ_TASK_LAUNCH_ENV
```
    String value. Env settings for the Tez Task processes. Should be specified as a comma-separated of key-value pairs where each pair is defined as KEY=VAL e.g. "LD_LIBRARY_PATH=.,USERNAME=foo" These take least precedence compared to other methods of setting env These get added to the task environment prior to launching it.
    
    See Also:
    Constant Field Values
  - TEZ_TASK_LAUNCH_ENV_DEFAULT
```
public static final String TEZ_TASK_LAUNCH_ENV_DEFAULT
```
  - TEZ_CANCEL_DELEGATION_TOKENS_ON_COMPLETION_DEFAULT
```
public static final boolean TEZ_CANCEL_DELEGATION_TOKENS_ON_COMPLETION_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_TASK_LISTENER_THREAD_COUNT
```
public static final String TEZ_AM_TASK_LISTENER_THREAD_COUNT
```
    Int value. The number of threads used to listen to task heartbeat requests. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_AM_TASK_LISTENER_THREAD_COUNT_DEFAULT
```
public static final int TEZ_AM_TASK_LISTENER_THREAD_COUNT_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_COUNTERS_MAX
```
@InterfaceStability.Unstable
public static final String TEZ_COUNTERS_MAX
```
    Int value. Configuration to limit the counters per dag (AppMaster and Task). This can be used to limit the amount of memory being used in the app master to store the counters. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_COUNTERS_MAX_DEFAULT
```
public static final int TEZ_COUNTERS_MAX_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_COUNTERS_MAX_GROUPS
```
@InterfaceStability.Unstable
public static final String TEZ_COUNTERS_MAX_GROUPS
```
    Int value. Configuration to limit the number of counter groups for a DAG. This can be used to limit the amount of memory being used in the app master to store the counters. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_COUNTERS_MAX_GROUPS_DEFAULT
```
public static final int TEZ_COUNTERS_MAX_GROUPS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_COUNTERS_COUNTER_NAME_MAX_LENGTH
```
@InterfaceStability.Unstable
public static final String TEZ_COUNTERS_COUNTER_NAME_MAX_LENGTH
```
    Int value. Configuration to limit the length of counter names. This can be used to limit the amount of memory being used in the app master to store the counters. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_COUNTERS_COUNTER_NAME_MAX_LENGTH_DEFAULT
```
public static final int TEZ_COUNTERS_COUNTER_NAME_MAX_LENGTH_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_COUNTERS_GROUP_NAME_MAX_LENGTH
```
@InterfaceStability.Unstable
public static final String TEZ_COUNTERS_GROUP_NAME_MAX_LENGTH
```
    Int value. Configuration to limit the counter group names per app master. This can be used to limit the amount of memory being used in the app master to store the counters. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_COUNTERS_GROUP_NAME_MAX_LENGTH_DEFAULT
```
public static final int TEZ_COUNTERS_GROUP_NAME_MAX_LENGTH_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_SPECULATION_ENABLED
```
@InterfaceStability.Unstable
public static final String TEZ_AM_SPECULATION_ENABLED
```
    See Also:
    Constant Field Values
  - TEZ_AM_SPECULATION_ENABLED_DEFAULT
```
public static final boolean TEZ_AM_SPECULATION_ENABLED_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_LEGACY_SPECULATIVE_SLOWTASK_THRESHOLD
```
@InterfaceStability.Unstable
public static final String TEZ_AM_LEGACY_SPECULATIVE_SLOWTASK_THRESHOLD
```
    Float value. Specifies how many standard deviations away from the mean task execution time should be considered as an outlier/slow task.
    
    See Also:
    Constant Field Values
  - TEZ_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT
```
public static final String TEZ_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT
```
    Int value. Upper limit on the number of threads user to launch containers in the app master. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT_DEFAULT
```
public static final int TEZ_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_MAX_TASK_FAILURES_PER_NODE
```
public static final String TEZ_AM_MAX_TASK_FAILURES_PER_NODE
```
    Int value. Specifies the number of task failures on a node before the node is considered faulty.
    
    See Also:
    Constant Field Values
  - TEZ_AM_MAX_TASK_FAILURES_PER_NODE_DEFAULT
```
public static final int TEZ_AM_MAX_TASK_FAILURES_PER_NODE_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_MAX_APP_ATTEMPTS
```
public static final String TEZ_AM_MAX_APP_ATTEMPTS
```
    Int value. Specifies the number of times the app master can be launched in order to recover from app master failure. Typically app master failures are non-recoverable. This parameter is for cases where the app master is not at fault but is lost due to system errors. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_AM_MAX_APP_ATTEMPTS_DEFAULT
```
public static int TEZ_AM_MAX_APP_ATTEMPTS_DEFAULT
```
  - TEZ_AM_TASK_MAX_FAILED_ATTEMPTS
```
public static final String TEZ_AM_TASK_MAX_FAILED_ATTEMPTS
```
    Int value. The maximum number of attempts that can fail for a particular task before the task is failed. This does not count killed attempts. Task failure results in DAG failure.
    
    See Also:
    Constant Field Values
  - TEZ_AM_TASK_MAX_FAILED_ATTEMPTS_DEFAULT
```
public static final int TEZ_AM_TASK_MAX_FAILED_ATTEMPTS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_NODE_BLACKLISTING_ENABLED
```
public static final String TEZ_AM_NODE_BLACKLISTING_ENABLED
```
    Boolean value. Enabled blacklisting of nodes of nodes that are considered faulty. These nodes will not be used to execute tasks.
    
    See Also:
    Constant Field Values
  - TEZ_AM_NODE_BLACKLISTING_ENABLED_DEFAULT
```
public static final boolean TEZ_AM_NODE_BLACKLISTING_ENABLED_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_NODE_BLACKLISTING_IGNORE_THRESHOLD
```
public static final String TEZ_AM_NODE_BLACKLISTING_IGNORE_THRESHOLD
```
    Int value. Specifies the percentage of nodes in the cluster that may be considered faulty. This limits the number of nodes that are blacklisted in an effort to minimize the effects of temporary surges in failures (e.g. due to network outages).
    
    See Also:
    Constant Field Values
  - TEZ_AM_NODE_BLACKLISTING_IGNORE_THRESHOLD_DEFAULT
```
public static final int TEZ_AM_NODE_BLACKLISTING_IGNORE_THRESHOLD_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_CLIENT_THREAD_COUNT
```
public static final String TEZ_AM_CLIENT_THREAD_COUNT
```
    Int value. Number of threads to handle client RPC requests. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_AM_CLIENT_THREAD_COUNT_DEFAULT
```
public static final int TEZ_AM_CLIENT_THREAD_COUNT_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_CLIENT_AM_PORT_RANGE
```
public static final String TEZ_AM_CLIENT_AM_PORT_RANGE
```
    String value. Range of ports that the AM can use when binding for client connections. Leave blank to use all possible ports. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_AM_DAG_SCHEDULER_CLASS
```
public static final String TEZ_AM_DAG_SCHEDULER_CLASS
```
    String value. The class to be used for DAG Scheduling. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_AM_DAG_SCHEDULER_CLASS_DEFAULT
```
public static final String TEZ_AM_DAG_SCHEDULER_CLASS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_RESOURCE_MEMORY_MB
```
public static final String TEZ_AM_RESOURCE_MEMORY_MB
```
    Int value. The amount of memory in MB to be used by the AppMaster
    
    See Also:
    Constant Field Values
  - TEZ_AM_RESOURCE_MEMORY_MB_DEFAULT
```
public static final int TEZ_AM_RESOURCE_MEMORY_MB_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_RESOURCE_CPU_VCORES
```
public static final String TEZ_AM_RESOURCE_CPU_VCORES
```
    Int value. The number of virtual cores to be used by the app master
    
    See Also:
    Constant Field Values
  - TEZ_AM_RESOURCE_CPU_VCORES_DEFAULT
```
public static final int TEZ_AM_RESOURCE_CPU_VCORES_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_TASK_RESOURCE_MEMORY_MB
```
public static final String TEZ_TASK_RESOURCE_MEMORY_MB
```
    Int value. The amount of memory in MB to be used by tasks. This applies to all tasks across all vertices. Setting it to the same value for all tasks is helpful for container reuse and thus good for performance typically.
    
    See Also:
    Constant Field Values
  - TEZ_TASK_RESOURCE_MEMORY_MB_DEFAULT
```
public static final int TEZ_TASK_RESOURCE_MEMORY_MB_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_TASK_RESOURCE_CPU_VCORES
```
public static final String TEZ_TASK_RESOURCE_CPU_VCORES
```
    Int value. The number of virtual cores to be used by tasks.
    
    See Also:
    Constant Field Values
  - TEZ_TASK_RESOURCE_CPU_VCORES_DEFAULT
```
public static final int TEZ_TASK_RESOURCE_CPU_VCORES_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_RM_HEARTBEAT_INTERVAL_MS_MAX
```
public static final String TEZ_AM_RM_HEARTBEAT_INTERVAL_MS_MAX
```
    Int value. The maximum heartbeat interval between the AM and RM in milliseconds Increasing this reduces the communication between the AM and the RM and can help in scaling up. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_AM_RM_HEARTBEAT_INTERVAL_MS_MAX_DEFAULT
```
public static final int TEZ_AM_RM_HEARTBEAT_INTERVAL_MS_MAX_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_TASK_GET_TASK_SLEEP_INTERVAL_MS_MAX
```
public static final String TEZ_TASK_GET_TASK_SLEEP_INTERVAL_MS_MAX
```
    Int value. The maximum amount of time, in milliseconds, to wait before a task asks an AM for another task. Increasing this can help improve app master scalability for a large number of concurrent tasks. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_TASK_GET_TASK_SLEEP_INTERVAL_MS_MAX_DEFAULT
```
public static final int TEZ_TASK_GET_TASK_SLEEP_INTERVAL_MS_MAX_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_TASK_AM_HEARTBEAT_INTERVAL_MS
```
public static final String TEZ_TASK_AM_HEARTBEAT_INTERVAL_MS
```
    Int value. The maximum heartbeat interval, in milliseconds, between the app master and tasks. Increasing this can help improve app master scalability for a large number of concurrent tasks. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_TASK_AM_HEARTBEAT_INTERVAL_MS_DEFAULT
```
public static final int TEZ_TASK_AM_HEARTBEAT_INTERVAL_MS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_TASK_AM_HEARTBEAT_COUNTER_INTERVAL_MS
```
public static final String TEZ_TASK_AM_HEARTBEAT_COUNTER_INTERVAL_MS
```
    Int value. Interval, in milliseconds, after which counters are sent to AM in heartbeat from tasks. This reduces the amount of network traffice between AM and tasks to send high-volume counters. Improves AM scalability. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_TASK_AM_HEARTBEAT_COUNTER_INTERVAL_MS_DEFAULT
```
public static final int TEZ_TASK_AM_HEARTBEAT_COUNTER_INTERVAL_MS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_TASK_MAX_EVENTS_PER_HEARTBEAT
```
public static final String TEZ_TASK_MAX_EVENTS_PER_HEARTBEAT
```
    Int value. Maximum number of of events to fetch from the AM by the tasks in a single heartbeat. Expert level setting. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_TASK_MAX_EVENTS_PER_HEARTBEAT_DEFAULT
```
public static final int TEZ_TASK_MAX_EVENTS_PER_HEARTBEAT_DEFAULT
```
    See Also:
    Constant Field Values
  - TASK_HEARTBEAT_TIMEOUT_MS
```
public static final String TASK_HEARTBEAT_TIMEOUT_MS
```
    Int value. Time interval, in milliseconds, within which a task must heartbeat to the app master before its considered lost. Expert level setting.
    
    See Also:
    Constant Field Values
  - TASK_HEARTBEAT_TIMEOUT_CHECK_MS
```
public static final String TASK_HEARTBEAT_TIMEOUT_CHECK_MS
```
    Int value. Time interval, in milliseconds, between checks for lost tasks. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_AM_CONTAINER_REUSE_ENABLED
```
public static final String TEZ_AM_CONTAINER_REUSE_ENABLED
```
    Boolean value. Configuration to specify whether container should be reused across tasks. This improves performance by not incurring recurring launch overheads.
    
    See Also:
    Constant Field Values
  - TEZ_AM_CONTAINER_REUSE_ENABLED_DEFAULT
```
public static final boolean TEZ_AM_CONTAINER_REUSE_ENABLED_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_CONTAINER_REUSE_RACK_FALLBACK_ENABLED
```
public static final String TEZ_AM_CONTAINER_REUSE_RACK_FALLBACK_ENABLED
```
    Boolean value. Whether to reuse containers for rack local tasks. Active only if reuse is enabled.
    
    See Also:
    Constant Field Values
  - TEZ_AM_CONTAINER_REUSE_RACK_FALLBACK_ENABLED_DEFAULT
```
public static final boolean TEZ_AM_CONTAINER_REUSE_RACK_FALLBACK_ENABLED_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_CONTAINER_REUSE_NON_LOCAL_FALLBACK_ENABLED
```
public static final String TEZ_AM_CONTAINER_REUSE_NON_LOCAL_FALLBACK_ENABLED
```
    Boolean value. Whether to reuse containers for non-local tasks. Active only if reuse is enabled. Turning this on can severely affect locality and can be bad for jobs with high data volume being read from the primary data sources.
    
    See Also:
    Constant Field Values
  - TEZ_AM_CONTAINER_REUSE_NON_LOCAL_FALLBACK_ENABLED_DEFAULT
```
public static final boolean TEZ_AM_CONTAINER_REUSE_NON_LOCAL_FALLBACK_ENABLED_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS
```
public static final String TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS
```
    Int value. The amount of time to wait before assigning a container to the next level of locality. NODE -> RACK -> NON_LOCAL. Delay scheduling parameter. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS_DEFAULT
```
public static final long TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MIN_MILLIS
```
public static final String TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MIN_MILLIS
```
    Int value. The minimum amount of time to hold on to a container that is idle. Only active when reuse is enabled. Set to -1 to never release idle containers (not recommended).
    
    See Also:
    Constant Field Values
  - TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MIN_MILLIS_DEFAULT
```
public static final long TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MIN_MILLIS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MAX_MILLIS
```
public static final String TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MAX_MILLIS
```
    Int value. The maximum amount of time to hold on to a container if no task can be assigned to it immediately. Only active when reuse is enabled. The value must be +ve and >= TezConfiguration#TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MIN_MILLIS. Containers will have an expire time set to a random value between TezConfiguration#TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MIN_MILLIS && TezConfiguration#TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MAX_MILLIS. This creates a graceful reduction in the amount of idle resources held
    
    See Also:
    Constant Field Values
  - TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MAX_MILLIS_DEFAULT
```
public static final long TEZ_AM_CONTAINER_IDLE_RELEASE_TIMEOUT_MAX_MILLIS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_SESSION_MIN_HELD_CONTAINERS
```
public static final String TEZ_AM_SESSION_MIN_HELD_CONTAINERS
```
    Int value. The minimum number of containers that will be held in session mode. Not active in non-session mode. Enables an idle session (not running any DAG) to hold on to a minimum number of containers to provide fast response times for the next DAG.
    
    See Also:
    Constant Field Values
  - TEZ_AM_SESSION_MIN_HELD_CONTAINERS_DEFAULT
```
public static final int TEZ_AM_SESSION_MIN_HELD_CONTAINERS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_PREEMPTION_PERCENTAGE
```
public static final String TEZ_AM_PREEMPTION_PERCENTAGE
```
    Int value. Specifies the percentage of tasks eligible to be preempted that will actually be preempted in a given round of Tez internal preemption. This slows down preemption and gives more time for free resources to be allocated by the cluster (if any) and gives more time for preemptable tasks to finish. Valid values are 0-100. Higher values will preempt quickly at the cost of losing work. Setting to 0 turns off preemption. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_AM_PREEMPTION_PERCENTAGE_DEFAULT
```
public static final int TEZ_AM_PREEMPTION_PERCENTAGE_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_PREEMPTION_HEARTBEATS_BETWEEN_PREEMPTIONS
```
public static final String TEZ_AM_PREEMPTION_HEARTBEATS_BETWEEN_PREEMPTIONS
```
    Int value. The number of RM heartbeats to wait after preempting running tasks before preempting more running tasks. After preempting a task, we need to wait at least 1 heartbeat so that the RM can act on the released resources and assign new ones to us. Expert level setting.
    
    See Also:
    Constant Field Values
  - TEZ_AM_PREEMPTION_HEARTBEATS_BETWEEN_PREEMPTIONS_DEFAULT
```
public static final int TEZ_AM_PREEMPTION_HEARTBEATS_BETWEEN_PREEMPTIONS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_LIB_URIS
```
public static final String TEZ_LIB_URIS
```
    String value to a file path. The location of the Tez libraries which will be localized for DAGs. This follows the following semantics
    1. To use a single .tar.gz or .tgz file (generated by the tez build), the full path to this file (including filename) should be specified. The internal structure of the uncompressed tgz will be retained under $CWD/tezlib.
    2. If a single file is specified without the above mentioned extensions - it will be treated as a regular file. This means it will not be uncompressed during runtime.
    3. If multiple entries exist
      
      Files: will be treated as regular files (not uncompressed during runtime)
      
      Directories: all files under the directory (non-recursive) will be made available (but not uncompressed during runtime).
      
      All files / contents of directories are flattened into a single directory - $CWD
    See Also:
    Constant Field Values
  - TEZ_AUX_URIS
```
public static final String TEZ_AUX_URIS
```
    Auxiliary resources to be localized for the Tez AM and all its containers. Value is comma-separated list of fully-resolved directories or file paths. All resources are made available into the working directory of the AM and/or containers i.e. $CWD. If directories are specified, they are not traversed recursively. Only files directly under the specified directory are localized. All duplicate resources are ignored.
    
    See Also:
    Constant Field Values
  - TEZ_IGNORE_LIB_URIS
```
public static final String TEZ_IGNORE_LIB_URIS
```
    Boolean value. Allows to ignore 'tez.lib.uris'. Useful during development as well as raw Tez application where classpath is propagated with application via LocalResources. This is mainly useful for developer/debugger scenarios.
    
    See Also:
    Constant Field Values
  - TEZ_USE_CLUSTER_HADOOP_LIBS
```
public static final String TEZ_USE_CLUSTER_HADOOP_LIBS
```
    Boolean value. Specify whether hadoop libraries required to run Tez should be the ones deployed on the cluster. This is disabled by default - with the expectation being that tez.lib.uris has a complete tez-deployment which contains the hadoop libraries.
    
    See Also:
    Constant Field Values
  - TEZ_USE_CLUSTER_HADOOP_LIBS_DEFAULT
```
public static final boolean TEZ_USE_CLUSTER_HADOOP_LIBS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_CLUSTER_ADDITIONAL_CLASSPATH_PREFIX
```
public static final String TEZ_CLUSTER_ADDITIONAL_CLASSPATH_PREFIX
```
    String value. Specify additional classpath information to be used for Tez AM and all containers. This will be prepended to the classpath before all framework specific components have been specified.
    
    See Also:
    Constant Field Values
  - TEZ_SESSION_CLIENT_TIMEOUT_SECS
```
public static final String TEZ_SESSION_CLIENT_TIMEOUT_SECS
```
    Int value. Time (in seconds) to wait for AM to come up when trying to submit a DAG from the client. Only relevant in session mode. If the cluster is busy and cannot launch the AM then this timeout may be hit. In those case, using non-session mode is recommended if applicable. Otherwise increase the timeout (set to -1 for infinity. Not recommended)
    
    See Also:
    Constant Field Values
  - TEZ_SESSION_CLIENT_TIMEOUT_SECS_DEFAULT
```
public static final int TEZ_SESSION_CLIENT_TIMEOUT_SECS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_SESSION_AM_DAG_SUBMIT_TIMEOUT_SECS
```
public static final String TEZ_SESSION_AM_DAG_SUBMIT_TIMEOUT_SECS
```
    Int value. Time (in seconds) for which the Tez AM should wait for a DAG to be submitted before shutting down. Only relevant in session mode.
    
    See Also:
    Constant Field Values
  - TEZ_SESSION_AM_DAG_SUBMIT_TIMEOUT_SECS_DEFAULT
```
public static final int TEZ_SESSION_AM_DAG_SUBMIT_TIMEOUT_SECS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_QUEUE_NAME
```
public static final String TEZ_QUEUE_NAME
```
    String value. The queue name for all jobs being submitted from a given client.
    
    See Also:
    Constant Field Values
  - TEZ_GENERATE_DEBUG_ARTIFACTS
```
@InterfaceStability.Unstable
public static final String TEZ_GENERATE_DEBUG_ARTIFACTS
```
    See Also:
    Constant Field Values
  - TEZ_GENERATE_DEBUG_ARTIFACTS_DEFAULT
```
public static final boolean TEZ_GENERATE_DEBUG_ARTIFACTS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_TASK_SPECIFIC_LAUNCH_CMD_OPTS_LIST
```
@InterfaceStability.Unstable
public static final String TEZ_TASK_SPECIFIC_LAUNCH_CMD_OPTS_LIST
```
    Set of tasks for which specific launch command options need to be added. Format: "vertexName[csv of task ids];vertexName[csv of task ids].." Valid e.g: v[0,1,2] - Additional launch-cmd options for tasks 0,1,2 of vertex v v[1,2,3];v2[5,6,7] - Additional launch-cmd options specified for tasks of vertices v and v2. v[1:5,20,30];v2[2:5,60,7] - Additional launch-cmd options for 1,2,3,4,5,20,30 of vertex v; 2, 3,4,5,60,7 of vertex v2 Partial ranges like :5, 1: are not supported. v[] - Additional launch-cmd options for all tasks in vertex v
    
    See Also:
    Constant Field Values
  - TEZ_TASK_SPECIFIC_LAUNCH_CMD_OPTS
```
@InterfaceStability.Unstable
public static final String TEZ_TASK_SPECIFIC_LAUNCH_CMD_OPTS
```
    Additional launch command options to be added for specific tasks. __VERTEX_NAME__ and __TASK_INDEX__ can be specified, which would be replaced at runtime by vertex name and task index. e.g tez.task-specific.launch.cmd-opts= "-agentpath:libpagent.so,dir=/tmp/__VERTEX_NAME__/__TASK_INDEX__"
    
    See Also:
    Constant Field Values
  - TEZ_TASK_SPECIFIC_LOG_LEVEL
```
@InterfaceStability.Unstable
public static final String TEZ_TASK_SPECIFIC_LOG_LEVEL
```
    Task specific log level. Simple configuration: Set the log level for all loggers. e.g. INFO This sets the log level to INFO for all loggers. Advanced configuration: Set the log level for all classes, along with a different level for some. e.g. DEBUG;org.apache.hadoop.ipc=INFO;org.apache.hadoop.security=INFO This sets the log level for all loggers to DEBUG, expect for the org.apache.hadoop.ipc and org.apache.hadoop.security, which are set to INFO Note: The global log level must always be the first parameter. DEBUG;org.apache.hadoop.ipc=INFO;org.apache.hadoop.security=INFO is valid org.apache.hadoop.ipc=INFO;org.apache.hadoop.security=INFO is not valid
    
    See Also:
    Constant Field Values
  - TEZ_HISTORY_LOGGING_SERVICE_CLASS
```
public static final String TEZ_HISTORY_LOGGING_SERVICE_CLASS
```
    String value that is a class name. Specify the class to use for logging history data
    
    See Also:
    Constant Field Values
  - TEZ_HISTORY_LOGGING_SERVICE_CLASS_DEFAULT
```
public static final String TEZ_HISTORY_LOGGING_SERVICE_CLASS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_SIMPLE_HISTORY_LOGGING_DIR
```
public static final String TEZ_SIMPLE_HISTORY_LOGGING_DIR
```
    String value. The directory into which history data will be written. This defaults to the container logging directory. This is relevant only when SimpleHistoryLoggingService is being used for TEZ_HISTORY_LOGGING_SERVICE_CLASS
    
    See Also:
    Constant Field Values
  - TEZ_SIMPLE_HISTORY_LOGGING_MAX_ERRORS
```
public static final String TEZ_SIMPLE_HISTORY_LOGGING_MAX_ERRORS
```
    Int value. Maximum errors allowed while logging history data. After crossing this limit history logging gets disabled. The job continues to run after this.
    
    See Also:
    Constant Field Values
  - TEZ_SIMPLE_HISTORY_LOGGING_MAX_ERRORS_DEFAULT
```
public static final int TEZ_SIMPLE_HISTORY_LOGGING_MAX_ERRORS_DEFAULT
```
    See Also:
    Constant Field Values
  - YARN_ATS_EVENT_FLUSH_TIMEOUT_MILLIS
```
public static final String YARN_ATS_EVENT_FLUSH_TIMEOUT_MILLIS
```
    Int value. Time, in milliseconds, to wait while flushing YARN ATS data during shutdown. Expert level setting.
    
    See Also:
    Constant Field Values
  - YARN_ATS_EVENT_FLUSH_TIMEOUT_MILLIS_DEFAULT
```
public static final long YARN_ATS_EVENT_FLUSH_TIMEOUT_MILLIS_DEFAULT
```
    See Also:
    Constant Field Values
  - YARN_ATS_MAX_EVENTS_PER_BATCH
```
public static final String YARN_ATS_MAX_EVENTS_PER_BATCH
```
    Int value. Max no. of events to send in a single batch to ATS. Expert level setting.
    
    See Also:
    Constant Field Values
  - YARN_ATS_MAX_EVENTS_PER_BATCH_DEFAULT
```
public static final int YARN_ATS_MAX_EVENTS_PER_BATCH_DEFAULT
```
    See Also:
    Constant Field Values
  - YARN_ATS_MAX_POLLING_TIME_PER_EVENT
```
public static final String YARN_ATS_MAX_POLLING_TIME_PER_EVENT
```
    Int value. Time, in milliseconds, to wait for an event before sending a batch to ATS. Expert level setting.
    
    See Also:
    Constant Field Values
  - YARN_ATS_MAX_POLLING_TIME_PER_EVENT_DEFAULT
```
public static final int YARN_ATS_MAX_POLLING_TIME_PER_EVENT_DEFAULT
```
    See Also:
    Constant Field Values
  - YARN_ATS_ACL_DOMAINS_AUTO_CREATE
```
public static final String YARN_ATS_ACL_DOMAINS_AUTO_CREATE
```
    See Also:
    Constant Field Values
  - YARN_ATS_ACL_DOMAINS_AUTO_CREATE_DEFAULT
```
public static final boolean YARN_ATS_ACL_DOMAINS_AUTO_CREATE_DEFAULT
```
    See Also:
    Constant Field Values
  - YARN_ATS_ACL_SESSION_DOMAIN_ID
```
public static final String YARN_ATS_ACL_SESSION_DOMAIN_ID
```
    See Also:
    Constant Field Values
  - YARN_ATS_ACL_DAG_DOMAIN_ID
```
public static final String YARN_ATS_ACL_DAG_DOMAIN_ID
```
    See Also:
    Constant Field Values
  - DAG_RECOVERY_ENABLED
```
public static final String DAG_RECOVERY_ENABLED
```
    Boolean value. Enable recovery of DAGs. This allows a restarted app master to recover the incomplete DAGs from the previous instance of the app master.
    
    See Also:
    Constant Field Values
  - DAG_RECOVERY_ENABLED_DEFAULT
```
public static final boolean DAG_RECOVERY_ENABLED_DEFAULT
```
    See Also:
    Constant Field Values
  - DAG_RECOVERY_FILE_IO_BUFFER_SIZE
```
public static final String DAG_RECOVERY_FILE_IO_BUFFER_SIZE
```
    Int value. Size in bytes for the IO buffer size while processing the recovery file. Expert level setting.
    
    See Also:
    Constant Field Values
  - DAG_RECOVERY_FILE_IO_BUFFER_SIZE_DEFAULT
```
public static final int DAG_RECOVERY_FILE_IO_BUFFER_SIZE_DEFAULT
```
    See Also:
    Constant Field Values
  - DAG_RECOVERY_MAX_UNFLUSHED_EVENTS
```
public static final String DAG_RECOVERY_MAX_UNFLUSHED_EVENTS
```
    Int value. Number of recovery events to buffer before flushing them to the recovery log.
    
    See Also:
    Constant Field Values
  - DAG_RECOVERY_MAX_UNFLUSHED_EVENTS_DEFAULT
```
public static final int DAG_RECOVERY_MAX_UNFLUSHED_EVENTS_DEFAULT
```
    See Also:
    Constant Field Values
  - DAG_RECOVERY_FLUSH_INTERVAL_SECS
```
public static final String DAG_RECOVERY_FLUSH_INTERVAL_SECS
```
    Int value. Interval, in seconds, between flushing recovery data to the recovery log.
    
    See Also:
    Constant Field Values
  - DAG_RECOVERY_FLUSH_INTERVAL_SECS_DEFAULT
```
public static final int DAG_RECOVERY_FLUSH_INTERVAL_SECS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_LOCAL_MODE
```
public static final String TEZ_LOCAL_MODE
```
    Boolean value. Enable local mode execution in Tez. Enables tasks to run in the same process as the app master. Primarily used for debugging.
    
    See Also:
    Constant Field Values
  - TEZ_LOCAL_MODE_DEFAULT
```
public static final boolean TEZ_LOCAL_MODE_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_INLINE_TASK_EXECUTION_MAX_TASKS
```
public static final String TEZ_AM_INLINE_TASK_EXECUTION_MAX_TASKS
```
    Int value. The maximium number of tasks running in parallel within the app master process.
    
    See Also:
    Constant Field Values
  - TEZ_AM_INLINE_TASK_EXECUTION_MAX_TASKS_DEFAULT
```
public static final int TEZ_AM_INLINE_TASK_EXECUTION_MAX_TASKS_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_ACLS_ENABLED
```
public static final String TEZ_AM_ACLS_ENABLED
```
    Boolean value. Configuration to enable/disable ACL checks.
    
    See Also:
    Constant Field Values
  - TEZ_AM_ACLS_ENABLED_DEFAULT
```
public static final boolean TEZ_AM_ACLS_ENABLED_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_VIEW_ACLS
```
public static final String TEZ_AM_VIEW_ACLS
```
    String value. AM view ACLs. This allows the specified users/groups to view the status of the AM and all DAGs that run within this AM. Comma separated list of users, followed by whitespace, followed by a comma separated list of groups
    
    See Also:
    Constant Field Values
  - TEZ_AM_MODIFY_ACLS
```
public static final String TEZ_AM_MODIFY_ACLS
```
    String value. AM modify ACLs. This allows the specified users/groups to run modify operations on the AM such as submitting DAGs, pre-warming the session, killing DAGs or shutting down the session. Comma separated list of users, followed by whitespace, followed by a comma separated list of groups
    
    See Also:
    Constant Field Values
  - TEZ_AM_DISABLE_CLIENT_VERSION_CHECK
```
public static final String TEZ_AM_DISABLE_CLIENT_VERSION_CHECK
```
    Boolean value. Disable version check between client and AM/DAG. Default false.
    
    See Also:
    Constant Field Values
  - TEZ_AM_DISABLE_CLIENT_VERSION_CHECK_DEFAULT
```
public static final boolean TEZ_AM_DISABLE_CLIENT_VERSION_CHECK_DEFAULT
```
    See Also:
    Constant Field Values
  - TEZ_AM_ALLOW_DISABLED_TIMELINE_DOMAINS
```
public static final String TEZ_AM_ALLOW_DISABLED_TIMELINE_DOMAINS
```
    Boolean value. Allow disabling of Timeline Domains even if Timeline is being used.
    
    See Also:
    Constant Field Values
  - TEZ_AM_ALLOW_DISABLED_TIMELINE_DOMAINS_DEFAULT
```
public static final boolean TEZ_AM_ALLOW_DISABLED_TIMELINE_DOMAINS_DEFAULT
```
    See Also:
    Constant Field Values
- Constructor Detail
  - TezConfiguration
```
public TezConfiguration()
```
  - TezConfiguration
```
public TezConfiguration(org.apache.hadoop.conf.Configuration conf)
```
  - TezConfiguration
```
public TezConfiguration(boolean loadDefaults)
```

Class TezConfiguration

Field Summary

Constructor Summary

Method Summary

Methods inherited from class org.apache.hadoop.conf.Configuration

Methods inherited from class java.lang.Object

Field Detail

TEZ_SITE_XML

TEZ_AM_STAGING_SCRATCH_DATA_AUTO_DELETE

TEZ_AM_STAGING_SCRATCH_DATA_AUTO_DELETE_DEFAULT

TEZ_AM_STAGING_DIR

TEZ_AM_STAGING_DIR_DEFAULT

TEZ_CREDENTIALS_PATH

TEZ_AM_SESSION_MODE

TEZ_AM_SESSION_MODE_DEFAULT

TEZ_AM_LOG_LEVEL

TEZ_AM_LOG_LEVEL_DEFAULT

TEZ_TASK_LOG_LEVEL

TEZ_TASK_LOG_LEVEL_DEFAULT

TEZ_AM_COMMIT_ALL_OUTPUTS_ON_DAG_SUCCESS

TEZ_AM_COMMIT_ALL_OUTPUTS_ON_DAG_SUCCESS_DEFAULT

TEZ_AM_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS

TEZ_AM_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS_DEFAULT

TEZ_AM_LAUNCH_CMD_OPTS

TEZ_AM_LAUNCH_CMD_OPTS_DEFAULT

TEZ_TASK_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS

TEZ_TASK_LAUNCH_CLUSTER_DEFAULT_CMD_OPTS_DEFAULT

TEZ_TASK_LAUNCH_CMD_OPTS

TEZ_TASK_LAUNCH_CMD_OPTS_DEFAULT

TEZ_CONTAINER_MAX_JAVA_HEAP_FRACTION

TEZ_CONTAINER_MAX_JAVA_HEAP_FRACTION_DEFAULT

TEZ_AM_LAUNCH_ENV

TEZ_AM_LAUNCH_ENV_DEFAULT

TEZ_TASK_LAUNCH_ENV

TEZ_TASK_LAUNCH_ENV_DEFAULT

TEZ_CANCEL_DELEGATION_TOKENS_ON_COMPLETION_DEFAULT

TEZ_AM_TASK_LISTENER_THREAD_COUNT

TEZ_AM_TASK_LISTENER_THREAD_COUNT_DEFAULT

TEZ_COUNTERS_MAX

TEZ_COUNTERS_MAX_DEFAULT

TEZ_COUNTERS_MAX_GROUPS

TEZ_COUNTERS_MAX_GROUPS_DEFAULT

TEZ_COUNTERS_COUNTER_NAME_MAX_LENGTH

TEZ_COUNTERS_COUNTER_NAME_MAX_LENGTH_DEFAULT

TEZ_COUNTERS_GROUP_NAME_MAX_LENGTH

TEZ_COUNTERS_GROUP_NAME_MAX_LENGTH_DEFAULT

TEZ_AM_SPECULATION_ENABLED

TEZ_AM_SPECULATION_ENABLED_DEFAULT

TEZ_AM_LEGACY_SPECULATIVE_SLOWTASK_THRESHOLD

TEZ_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT

TEZ_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT_DEFAULT

TEZ_AM_MAX_TASK_FAILURES_PER_NODE

TEZ_AM_MAX_TASK_FAILURES_PER_NODE_DEFAULT

TEZ_AM_MAX_APP_ATTEMPTS

TEZ_AM_MAX_APP_ATTEMPTS_DEFAULT

TEZ_AM_TASK_MAX_FAILED_ATTEMPTS

TEZ_AM_TASK_MAX_FAILED_ATTEMPTS_DEFAULT

TEZ_AM_NODE_BLACKLISTING_ENABLED

TEZ_AM_NODE_BLACKLISTING_ENABLED_DEFAULT

TEZ_AM_NODE_BLACKLISTING_IGNORE_THRESHOLD

TEZ_AM_NODE_BLACKLISTING_IGNORE_THRESHOLD_DEFAULT

TEZ_AM_CLIENT_THREAD_COUNT

TEZ_AM_CLIENT_THREAD_COUNT_DEFAULT

TEZ_AM_CLIENT_AM_PORT_RANGE

TEZ_AM_DAG_SCHEDULER_CLASS

TEZ_AM_DAG_SCHEDULER_CLASS_DEFAULT

TEZ_AM_RESOURCE_MEMORY_MB

TEZ_AM_RESOURCE_MEMORY_MB_DEFAULT

TEZ_AM_RESOURCE_CPU_VCORES

TEZ_AM_RESOURCE_CPU_VCORES_DEFAULT

TEZ_TASK_RESOURCE_MEMORY_MB

TEZ_TASK_RESOURCE_MEMORY_MB_DEFAULT

TEZ_TASK_RESOURCE_CPU_VCORES

TEZ_TASK_RESOURCE_CPU_VCORES_DEFAULT

TEZ_AM_RM_HEARTBEAT_INTERVAL_MS_MAX

TEZ_AM_RM_HEARTBEAT_INTERVAL_MS_MAX_DEFAULT

TEZ_TASK_GET_TASK_SLEEP_INTERVAL_MS_MAX

TEZ_TASK_GET_TASK_SLEEP_INTERVAL_MS_MAX_DEFAULT

TEZ_TASK_AM_HEARTBEAT_INTERVAL_MS

TEZ_TASK_AM_HEARTBEAT_INTERVAL_MS_DEFAULT