ConfigConstants (flink-core 1.0.0 API)

java.lang.Object
- org.apache.flink.configuration.ConfigConstants

```
@Public
public final class ConfigConstants
extends Object
```
This class contains all constants for the configuration. That includes the configuration keys and the default values.

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`AKKA_ASK_TIMEOUT` Timeout for all blocking calls on the cluster side
`static String`	`AKKA_CLIENT_TIMEOUT` Timeout for all blocking calls on the client side
`static String`	`AKKA_DISPATCHER_THROUGHPUT` Maximum number of messages until another actor is executed by the same thread
`static String`	`AKKA_FRAMESIZE` Maximum framesize of akka messages
`static String`	`AKKA_JVM_EXIT_ON_FATAL_ERROR` Exit JVM on fatal Akka errors
`static String`	`AKKA_LOG_LIFECYCLE_EVENTS` Log lifecycle events
`static String`	`AKKA_LOOKUP_TIMEOUT` Timeout for all blocking calls that look up remote actors
`static String`	`AKKA_STARTUP_TIMEOUT` Timeout for the startup of the actor system
`static String`	`AKKA_TCP_TIMEOUT` Akka TCP timeout
`static String`	`AKKA_TRANSPORT_HEARTBEAT_INTERVAL` Heartbeat interval of the transport failure detector
`static String`	`AKKA_TRANSPORT_HEARTBEAT_PAUSE` Allowed heartbeat pause for the transport failure detector
`static String`	`AKKA_TRANSPORT_THRESHOLD` Detection threshold of transport failure detector
`static String`	`AKKA_WATCH_HEARTBEAT_INTERVAL` Heartbeat interval of watch failure detector
`static String`	`AKKA_WATCH_HEARTBEAT_PAUSE` Allowed heartbeat pause for the watch failure detector
`static String`	`AKKA_WATCH_THRESHOLD` Detection threshold for the phi accrual watch failure detector
`static String`	`BLOB_FETCH_BACKLOG_KEY` The config parameter defining the backlog of BLOB fetches on the JobManager
`static String`	`BLOB_FETCH_CONCURRENT_KEY` The config parameter defining the maximum number of concurrent BLOB fetches that the JobManager serves.
`static String`	`BLOB_FETCH_RETRIES_KEY` The config parameter defining number of retires for failed BLOB fetches.
`static String`	`BLOB_SERVER_PORT` The config parameter defining the server port of the blob service.
`static String`	`BLOB_STORAGE_DIRECTORY_KEY` The config parameter defining the storage directory to be used by the blob server.
`static String`	`DEFAULT_AKKA_ASK_TIMEOUT`
`static String`	`DEFAULT_AKKA_CLIENT_TIMEOUT`
`static int`	`DEFAULT_AKKA_DISPATCHER_THROUGHPUT`
`static String`	`DEFAULT_AKKA_FRAMESIZE`
`static boolean`	`DEFAULT_AKKA_LOG_LIFECYCLE_EVENTS`
`static String`	`DEFAULT_AKKA_LOOKUP_TIMEOUT`
`static String`	`DEFAULT_AKKA_TRANSPORT_HEARTBEAT_INTERVAL`
`static String`	`DEFAULT_AKKA_TRANSPORT_HEARTBEAT_PAUSE`
`static double`	`DEFAULT_AKKA_TRANSPORT_THRESHOLD`
`static double`	`DEFAULT_AKKA_WATCH_THRESHOLD`
`static int`	`DEFAULT_BLOB_FETCH_BACKLOG` Default BLOB fetch connection backlog.
`static int`	`DEFAULT_BLOB_FETCH_CONCURRENT` Default number of concurrent BLOB fetch operations.
`static int`	`DEFAULT_BLOB_FETCH_RETRIES` Default number of retries for failed BLOB fetches.
`static String`	`DEFAULT_BLOB_SERVER_PORT` Default BLOB server port.
`static int`	`DEFAULT_DELIMITED_FORMAT_MAX_LINE_SAMPLES` The default maximum number of line samples taken by the delimited input format.
`static int`	`DEFAULT_DELIMITED_FORMAT_MAX_SAMPLE_LEN` The default maximum sample length before sampling is aborted (2 MiBytes).
`static int`	`DEFAULT_DELIMITED_FORMAT_MIN_LINE_SAMPLES` The default minimum number of line samples taken by the delimited input format.
`static int`	`DEFAULT_EXECUTION_RETRIES` The default number of execution retries.
`static boolean`	`DEFAULT_FILESYSTEM_ALWAYS_CREATE_DIRECTORY` The default behavior for output directory creating (create only directory when parallelism > 1).
`static boolean`	`DEFAULT_FILESYSTEM_OVERWRITE` The default behavior with respect to overwriting existing files (= not overwrite)
`static String`	`DEFAULT_FILESYSTEM_SCHEME` The default filesystem to be used, if no other scheme is specified in the user-provided URI (= local filesystem)
`static int`	`DEFAULT_FS_STREAM_OPENING_TIMEOUT` The default timeout for filesystem stream opening: infinite (means max long milliseconds).
`static int`	`DEFAULT_JOB_MANAGER_IPC_PORT` The default network port to connect to for communication with the job manager.
`static int`	`DEFAULT_JOB_MANAGER_WEB_ARCHIVE_COUNT` The default number of archived jobs for the jobmanager
`static int`	`DEFAULT_JOB_MANAGER_WEB_BACK_PRESSURE_CLEAN_UP_INTERVAL` Time after which cached stats are cleaned up.
`static int`	`DEFAULT_JOB_MANAGER_WEB_BACK_PRESSURE_DELAY` Delay between samples to determine back pressure.
`static int`	`DEFAULT_JOB_MANAGER_WEB_BACK_PRESSURE_NUM_SAMPLES` Number of samples to take to determine back pressure.
`static int`	`DEFAULT_JOB_MANAGER_WEB_BACK_PRESSURE_REFRESH_INTERVAL` Time after which available stats are deprecated and need to be refreshed (by resampling).
`static boolean`	`DEFAULT_JOB_MANAGER_WEB_CHECKPOINTS_DISABLE` Default flag to disable checkpoint stats.
`static int`	`DEFAULT_JOB_MANAGER_WEB_CHECKPOINTS_HISTORY_SIZE` Default number of checkpoints to remember for recent history.
`static int`	`DEFAULT_JOB_MANAGER_WEB_FRONTEND_PORT` The config key for the port of the JobManager web frontend.
`static boolean`	`DEFAULT_JOB_MANAGER_WEB_SUBMIT_ENABLED` By default, submitting jobs from the web-frontend is allowed.
`static long`	`DEFAULT_LIBRARY_CACHE_MANAGER_CLEANUP_INTERVAL` The default library cache manager cleanup interval in seconds
`static int`	`DEFAULT_LOCAL_NUMBER_JOB_MANAGER`
`static int`	`DEFAULT_LOCAL_NUMBER_TASK_MANAGER`
`static float`	`DEFAULT_MEMORY_MANAGER_MEMORY_FRACTION` The default fraction of the free memory allocated by the task manager's memory manager.
`static int`	`DEFAULT_PARALLELISM` The default parallelism for operations.
`static String`	`DEFAULT_PARALLELISM_KEY` The config parameter defining the default parallelism for jobs.
`static String`	`DEFAULT_RECOVERY_JOB_MANAGER_PORT` Default port used by the job manager if not in standalone recovery mode.
`static String`	`DEFAULT_RECOVERY_MODE`
`static boolean`	`DEFAULT_RUNTIME_HASH_JOIN_BLOOM_FILTERS` Default setting for the switch for hash join bloom filters for spilled partitions.
`static float`	`DEFAULT_SORT_SPILLING_THRESHOLD` The default percentage of the sort memory to be full before data is spilled.
`static String`	`DEFAULT_SORT_SPILLING_THRESHOLD_KEY` Key for the default spilling threshold.
`static int`	`DEFAULT_SPILLING_MAX_FAN` The default value for the maximum spilling fan in/out.
`static String`	`DEFAULT_SPILLING_MAX_FAN_KEY` Parameter for the maximum fan for out-of-core algorithms.
`static String`	`DEFAULT_STATE_BACKEND`
`static int`	`DEFAULT_TASK_MANAGER_DATA_PORT` The default network port the task manager expects to receive transfer envelopes on.
`static long`	`DEFAULT_TASK_MANAGER_DEBUG_MEMORY_USAGE_LOG_INTERVAL_MS` The interval (in ms) for the log thread to log the current memory usage.
`static boolean`	`DEFAULT_TASK_MANAGER_DEBUG_MEMORY_USAGE_START_LOG_THREAD` Flag indicating whether to start a thread, which repeatedly logs the memory usage of the JVM.
`static int`	`DEFAULT_TASK_MANAGER_IPC_PORT` The default network port the task manager expects incoming IPC connections.
`static String`	`DEFAULT_TASK_MANAGER_MAX_REGISTRATION_DURATION` The default task manager's maximum registration duration
`static boolean`	`DEFAULT_TASK_MANAGER_MEMORY_PRE_ALLOCATE` The default setting for TaskManager memory eager allocation of managed memory
`static int`	`DEFAULT_TASK_MANAGER_MEMORY_SEGMENT_SIZE` Default size of memory segments in the network stack and the memory manager.
`static String`	`DEFAULT_TASK_MANAGER_NETWORK_DEFAULT_IO_MODE` The implementation to use for spillable/spilled intermediate results, which have both synchronous and asynchronous implementations: "sync" or "async".
`static int`	`DEFAULT_TASK_MANAGER_NETWORK_NUM_BUFFERS` Default number of buffers used in the network stack.
`static String`	`DEFAULT_TASK_MANAGER_TMP_PATH` The default directory for temporary files of the task manager.
`static String`	`DEFAULT_YARN_APPLICATION_MASTER_PORT` Default port for the application master is 0, which means the operating system assigns an ephemeral port
`static float`	`DEFAULT_YARN_HEAP_CUTOFF_RATIO` Relative amount of memory to subtract from the requested memory.
`static int`	`DEFAULT_YARN_MIN_HEAP_CUTOFF` Minimum amount of Heap memory to subtract from the requested TaskManager size.
`static String`	`DEFAULT_ZOOKEEPER_CHECKPOINT_COUNTER_PATH`
`static String`	`DEFAULT_ZOOKEEPER_CHECKPOINTS_PATH`
`static int`	`DEFAULT_ZOOKEEPER_CLIENT_PORT` ZooKeeper default client port.
`static int`	`DEFAULT_ZOOKEEPER_CONNECTION_TIMEOUT`
`static String`	`DEFAULT_ZOOKEEPER_DIR_KEY`
`static int`	`DEFAULT_ZOOKEEPER_INIT_LIMIT` ZooKeeper default init limit.
`static String`	`DEFAULT_ZOOKEEPER_JOBGRAPHS_PATH`
`static String`	`DEFAULT_ZOOKEEPER_LATCH_PATH`
`static String`	`DEFAULT_ZOOKEEPER_LEADER_PATH`
`static int`	`DEFAULT_ZOOKEEPER_LEADER_PORT` ZooKeeper default leader port.
`static int`	`DEFAULT_ZOOKEEPER_MAX_RETRY_ATTEMPTS`
`static int`	`DEFAULT_ZOOKEEPER_PEER_PORT` ZooKeeper default peer port.
`static int`	`DEFAULT_ZOOKEEPER_RETRY_WAIT`
`static int`	`DEFAULT_ZOOKEEPER_SESSION_TIMEOUT`
`static int`	`DEFAULT_ZOOKEEPER_SYNC_LIMIT` ZooKeeper default sync limit.
`static String`	`DELIMITED_FORMAT_MAX_LINE_SAMPLES_KEY` The maximum number of line samples to be taken by the delimited input format, if no other value is specified for the data source.
`static String`	`DELIMITED_FORMAT_MAX_SAMPLE_LENGTH_KEY` The maximum length of a single sampled record before the sampling is aborted.
`static String`	`DELIMITED_FORMAT_MIN_LINE_SAMPLES_KEY` The minimum number of line samples to be taken by the delimited input format, if no other value is specified for the data source.
`static String`	`EXECUTION_RETRIES_KEY` Deprecated. The configuration value will be replaced by `RESTART_STRATEGY_FIXED_DELAY_ATTEMPTS` and the corresponding FixedDelayRestartStrategy.
`static String`	`EXECUTION_RETRY_DELAY_KEY` Deprecated. The configuration value will be replaced by `RESTART_STRATEGY_FIXED_DELAY_DELAY` and the corresponding FixedDelayRestartStrategy.
`static String`	`FILESYSTEM_DEFAULT_OVERWRITE_KEY` Key to specify whether the file systems should simply overwrite existing files.
`static String`	`FILESYSTEM_OUTPUT_ALWAYS_CREATE_DIRECTORY_KEY` Key to specify whether the file systems should always create a directory for the output, even with a parallelism of one.
`static String`	`FILESYSTEM_SCHEME` Key to specify the default filesystem to be used by a job.
`static String`	`FLINK_BASE_DIR_PATH_KEY` The key to the Flink base directory path
`static String`	`FLINK_JVM_OPTIONS`
`static String`	`FS_STREAM_OPENING_TIMEOUT_KEY` The config parameter defining the timeout for filesystem stream opening.
`static String`	`HDFS_DEFAULT_CONFIG` Path to hdfs-defaul.xml file
`static String`	`HDFS_SITE_CONFIG` Path to hdfs-site.xml file
`static String`	`JOB_MANAGER_IPC_ADDRESS_KEY` The config parameter defining the network address to connect to for communication with the job manager.
`static String`	`JOB_MANAGER_IPC_PORT_KEY` The config parameter defining the network port to connect to for communication with the job manager.
`static String`	`JOB_MANAGER_WEB_ARCHIVE_COUNT` The config parameter defining the number of archived jobs for the jobmanager
`static String`	`JOB_MANAGER_WEB_BACK_PRESSURE_CLEAN_UP_INTERVAL` Time after which cached stats are cleaned up if not accessed.
`static String`	`JOB_MANAGER_WEB_BACK_PRESSURE_DELAY` Delay between stack trace samples to determine back pressure.
`static String`	`JOB_MANAGER_WEB_BACK_PRESSURE_NUM_SAMPLES` Number of stack trace samples to take to determine back pressure.
`static String`	`JOB_MANAGER_WEB_BACK_PRESSURE_REFRESH_INTERVAL` Time after which available stats are deprecated and need to be refreshed (by resampling).
`static String`	`JOB_MANAGER_WEB_CHECKPOINTS_DISABLE` Flag to disable checkpoint stats.
`static String`	`JOB_MANAGER_WEB_CHECKPOINTS_HISTORY_SIZE` Config parameter defining the number of checkpoints to remember for recent history.
`static String`	`JOB_MANAGER_WEB_LOG_PATH_KEY` The log file location (may be in /log for standalone but under log directory when using YARN)
`static String`	`JOB_MANAGER_WEB_PORT_KEY` The port for the runtime monitor web-frontend server.
`static String`	`JOB_MANAGER_WEB_SUBMIT_ENABLED_KEY` Config parameter indicating whether jobs can be uploaded and run from the web-frontend.
`static String`	`LIBRARY_CACHE_MANAGER_CLEANUP_INTERVAL` The config parameter defining the cleanup interval of the library cache manager.
`static String`	`LOCAL_NUMBER_JOB_MANAGER`
`static String`	`LOCAL_NUMBER_TASK_MANAGER` Sets the number of local task managers
`static String`	`LOCAL_START_WEBSERVER`
`static String`	`PATH_HADOOP_CONFIG` Path to Hadoop configuration
`static String`	`RECOVERY_JOB_DELAY` The time before the JobManager recovers persisted jobs
`static String`	`RECOVERY_JOB_MANAGER_PORT` Ports used by the job manager if not in standalone recovery mode
`static String`	`RECOVERY_MODE` Defines recovery mode used for the cluster execution ("standalone", "zookeeper")
`static String`	`RESTART_STRATEGY` Defines the restart strategy to be used.
`static String`	`RESTART_STRATEGY_FIXED_DELAY_ATTEMPTS` Maximum number of attempts the fixed delay restart strategy will try before failing a job.
`static String`	`RESTART_STRATEGY_FIXED_DELAY_DELAY` Delay between two consecutive restart attempts.
`static String`	`RUNTIME_HASH_JOIN_BLOOM_FILTERS_KEY` Parameter to switch hash join bloom filters for spilled partitions on and off.
`static String`	`STATE_BACKEND` State backend for checkpoints;
`static String`	`TASK_MANAGER_DATA_PORT_KEY` The config parameter defining the task manager's data port from the configuration.
`static String`	`TASK_MANAGER_DEBUG_MEMORY_USAGE_LOG_INTERVAL_MS` The interval (in ms) for the log thread to log the current memory usage.
`static String`	`TASK_MANAGER_DEBUG_MEMORY_USAGE_START_LOG_THREAD` Flag indicating whether to start a thread, which repeatedly logs the memory usage of the JVM.
`static String`	`TASK_MANAGER_HOSTNAME_KEY` The config parameter defining the task manager's hostname.
`static String`	`TASK_MANAGER_IPC_PORT_KEY` The config parameter defining the task manager's IPC port from the configuration.
`static String`	`TASK_MANAGER_MAX_REGISTRATION_DURATION`
`static String`	`TASK_MANAGER_MEMORY_FRACTION_KEY` The config parameter defining the fraction of free memory allocated by the memory manager.
`static String`	`TASK_MANAGER_MEMORY_OFF_HEAP_KEY` The config parameter defining the memory allocation method (JVM heap or off-heap).
`static String`	`TASK_MANAGER_MEMORY_PRE_ALLOCATE_KEY` The config parameter for specifying whether TaskManager managed memory should be preallocated when the TaskManager is starting.
`static String`	`TASK_MANAGER_MEMORY_SEGMENT_SIZE_KEY` Config parameter defining the size of memory buffers used by the network stack and the memory manager.
`static String`	`TASK_MANAGER_MEMORY_SIZE_KEY` The config parameter defining the amount of memory to be allocated by the task manager's memory manager (in megabytes).
`static String`	`TASK_MANAGER_NETWORK_DEFAULT_IO_MODE` The implementation to use for spillable/spilled intermediate results, which have both synchronous and asynchronous implementations: "sync" or "async".
`static String`	`TASK_MANAGER_NETWORK_NUM_BUFFERS_KEY` The config parameter defining the number of buffers used in the network stack.
`static String`	`TASK_MANAGER_NUM_TASK_SLOTS` The config parameter defining the number of task slots of a task manager.
`static String`	`TASK_MANAGER_TMP_DIR_KEY` The config parameter defining the directories for temporary files.
`static String`	`YARN_APPLICATION_ATTEMPTS` Set the number of retries for failed YARN ApplicationMasters/JobManagers in high availability mode.
`static String`	`YARN_APPLICATION_MASTER_ENV_PREFIX` Prefix for passing custom environment variables to Flink's ApplicationMaster (JobManager).
`static String`	`YARN_APPLICATION_MASTER_PORT` The config parameter defining the Akka actor system port for the ApplicationMaster and JobManager The port can either be a port, such as "9123", a range of ports: "50100-50200" or a list of ranges and or points: "50100-50200,50300-50400,51234" Setting the port to 0 will let the OS choose an available port.
`static String`	`YARN_HEAP_CUTOFF_MIN` Minimum amount of memory to remove from the heap space as a safety margin.
`static String`	`YARN_HEAP_CUTOFF_RATIO` Percentage of heap space to remove from containers started by YARN.
`static String`	`YARN_HEARTBEAT_DELAY_SECONDS` The heartbeat interval between the Application Master and the YARN Resource Manager.
`static String`	`YARN_MAX_FAILED_CONTAINERS` The maximum number of failed YARN containers before entirely stopping the YARN session / job on YARN.
`static String`	`YARN_PROPERTIES_FILE_LOCATION` When a Flink job is submitted to YARN, the JobManager's host and the number of available processing slots is written into a properties file, so that the Flink client is able to pick those details up.
`static String`	`YARN_REALLOCATE_FAILED_CONTAINERS` Reallocate failed YARN containers.
`static String`	`YARN_TASK_MANAGER_ENV_PREFIX` Similar to the `YARN_APPLICATION_MASTER_ENV_PREFIX`, this configuration prefix allows setting custom environment variables.
`static String`	`YARN_VCORES` The vcores exposed by YYARN.
`static String`	`ZOOKEEPER_CHECKPOINT_COUNTER_PATH` ZooKeeper root path (ZNode) for checkpoint counters.
`static String`	`ZOOKEEPER_CHECKPOINTS_PATH` ZooKeeper root path (ZNode) for completed checkpoints.
`static String`	`ZOOKEEPER_CONNECTION_TIMEOUT`
`static String`	`ZOOKEEPER_DIR_KEY` ZooKeeper root path.
`static String`	`ZOOKEEPER_JOBGRAPHS_PATH` ZooKeeper root path (ZNode) for job graphs.
`static String`	`ZOOKEEPER_LATCH_PATH`
`static String`	`ZOOKEEPER_LEADER_PATH`
`static String`	`ZOOKEEPER_MAX_RETRY_ATTEMPTS`
`static String`	`ZOOKEEPER_QUORUM_KEY` ZooKeeper servers.
`static String`	`ZOOKEEPER_RECOVERY_PATH` File system state backend base path for recoverable state handles.
`static String`	`ZOOKEEPER_RETRY_WAIT`
`static String`	`ZOOKEEPER_SESSION_TIMEOUT`

Method Summary
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - DEFAULT_PARALLELISM_KEY
```
public static final String DEFAULT_PARALLELISM_KEY
```
    The config parameter defining the default parallelism for jobs.
    
    See Also:
    Constant Field Values
  - RESTART_STRATEGY
```
@PublicEvolving
public static final String RESTART_STRATEGY
```
    Defines the restart strategy to be used. It can be "off", "none", "disable" to be disabled or it can be "fixeddelay", "fixed-delay" to use the FixedDelayRestartStrategy. You can also specify a class name which implements the RestartStrategy interface and has a static create method which takes a Configuration object.
    
    See Also:
    Constant Field Values
  - RESTART_STRATEGY_FIXED_DELAY_ATTEMPTS
```
@PublicEvolving
public static final String RESTART_STRATEGY_FIXED_DELAY_ATTEMPTS
```
    Maximum number of attempts the fixed delay restart strategy will try before failing a job.
    
    See Also:
    Constant Field Values
  - RESTART_STRATEGY_FIXED_DELAY_DELAY
```
@PublicEvolving
public static final String RESTART_STRATEGY_FIXED_DELAY_DELAY
```
    Delay between two consecutive restart attempts. It can be specified using Scala's FiniteDuration notation: "1 min", "20 s"
    
    See Also:
    Constant Field Values
  - EXECUTION_RETRIES_KEY
```
@Deprecated
@PublicEvolving
public static final String EXECUTION_RETRIES_KEY
```
    Deprecated. The configuration value will be replaced by RESTART_STRATEGY_FIXED_DELAY_ATTEMPTS and the corresponding FixedDelayRestartStrategy.
    
    Config parameter for the number of re-tries for failed tasks. Setting this value to 0 effectively disables fault tolerance.
    
    See Also:
    Constant Field Values
  - EXECUTION_RETRY_DELAY_KEY
```
@Deprecated
@PublicEvolving
public static final String EXECUTION_RETRY_DELAY_KEY
```
    Deprecated. The configuration value will be replaced by RESTART_STRATEGY_FIXED_DELAY_DELAY and the corresponding FixedDelayRestartStrategy.
    
    Config parameter for the delay between execution retries. The value must be specified in the notation "10 s" or "1 min" (style of Scala Finite Durations)
    
    See Also:
    Constant Field Values
  - JOB_MANAGER_IPC_ADDRESS_KEY
```
public static final String JOB_MANAGER_IPC_ADDRESS_KEY
```
    The config parameter defining the network address to connect to for communication with the job manager.
    
    See Also:
    Constant Field Values
  - JOB_MANAGER_IPC_PORT_KEY
```
public static final String JOB_MANAGER_IPC_PORT_KEY
```
    The config parameter defining the network port to connect to for communication with the job manager.
    
    See Also:
    Constant Field Values
  - BLOB_STORAGE_DIRECTORY_KEY
```
public static final String BLOB_STORAGE_DIRECTORY_KEY
```
    The config parameter defining the storage directory to be used by the blob server.
    
    See Also:
    Constant Field Values
  - BLOB_FETCH_RETRIES_KEY
```
public static final String BLOB_FETCH_RETRIES_KEY
```
    The config parameter defining number of retires for failed BLOB fetches.
    
    See Also:
    Constant Field Values
  - BLOB_FETCH_CONCURRENT_KEY
```
public static final String BLOB_FETCH_CONCURRENT_KEY
```
    The config parameter defining the maximum number of concurrent BLOB fetches that the JobManager serves.
    
    See Also:
    Constant Field Values
  - BLOB_FETCH_BACKLOG_KEY
```
public static final String BLOB_FETCH_BACKLOG_KEY
```
    The config parameter defining the backlog of BLOB fetches on the JobManager
    
    See Also:
    Constant Field Values
  - BLOB_SERVER_PORT
```
public static final String BLOB_SERVER_PORT
```
    The config parameter defining the server port of the blob service. The port can either be a port, such as "9123", a range of ports: "50100-50200" or a list of ranges and or points: "50100-50200,50300-50400,51234" Setting the port to 0 will let the OS choose an available port.
    
    See Also:
    Constant Field Values
  - LIBRARY_CACHE_MANAGER_CLEANUP_INTERVAL
```
public static final String LIBRARY_CACHE_MANAGER_CLEANUP_INTERVAL
```
    The config parameter defining the cleanup interval of the library cache manager.
    
    See Also:
    Constant Field Values
  - TASK_MANAGER_HOSTNAME_KEY
```
public static final String TASK_MANAGER_HOSTNAME_KEY
```
    The config parameter defining the task manager's hostname.
    
    See Also:
    Constant Field Values
  - TASK_MANAGER_IPC_PORT_KEY
```
public static final String TASK_MANAGER_IPC_PORT_KEY
```
    The config parameter defining the task manager's IPC port from the configuration.
    
    See Also:
    Constant Field Values
  - TASK_MANAGER_DATA_PORT_KEY
```
public static final String TASK_MANAGER_DATA_PORT_KEY
```
    The config parameter defining the task manager's data port from the configuration.
    
    See Also:
    Constant Field Values
  - TASK_MANAGER_TMP_DIR_KEY
```
public static final String TASK_MANAGER_TMP_DIR_KEY
```
    The config parameter defining the directories for temporary files.
    
    See Also:
    Constant Field Values
  - TASK_MANAGER_MEMORY_SIZE_KEY
```
public static final String TASK_MANAGER_MEMORY_SIZE_KEY
```
    The config parameter defining the amount of memory to be allocated by the task manager's memory manager (in megabytes). If not set, a relative fraction will be allocated, as defined by TASK_MANAGER_MEMORY_FRACTION_KEY.
    
    See Also:
    Constant Field Values
  - TASK_MANAGER_MEMORY_FRACTION_KEY
```
public static final String TASK_MANAGER_MEMORY_FRACTION_KEY
```
    The config parameter defining the fraction of free memory allocated by the memory manager.
    
    See Also:
    Constant Field Values
  - TASK_MANAGER_MEMORY_OFF_HEAP_KEY
```
public static final String TASK_MANAGER_MEMORY_OFF_HEAP_KEY
```
    The config parameter defining the memory allocation method (JVM heap or off-heap).
    
    See Also:
    Constant Field Values
  - TASK_MANAGER_MEMORY_PRE_ALLOCATE_KEY
```
public static final String TASK_MANAGER_MEMORY_PRE_ALLOCATE_KEY
```
    The config parameter for specifying whether TaskManager managed memory should be preallocated when the TaskManager is starting. (default is false)
    
    See Also:
    Constant Field Values
  - TASK_MANAGER_NETWORK_NUM_BUFFERS_KEY
```
public static final String TASK_MANAGER_NETWORK_NUM_BUFFERS_KEY
```
    The config parameter defining the number of buffers used in the network stack. This defines the number of possible tasks and shuffles.
    
    See Also:
    Constant Field Values
  - TASK_MANAGER_MEMORY_SEGMENT_SIZE_KEY
```
public static final String TASK_MANAGER_MEMORY_SEGMENT_SIZE_KEY
```
    Config parameter defining the size of memory buffers used by the network stack and the memory manager.
    
    See Also:
    Constant Field Values
  - TASK_MANAGER_NETWORK_DEFAULT_IO_MODE
```
public static final String TASK_MANAGER_NETWORK_DEFAULT_IO_MODE
```
    The implementation to use for spillable/spilled intermediate results, which have both synchronous and asynchronous implementations: "sync" or "async".
    
    See Also:
    Constant Field Values
  - TASK_MANAGER_NUM_TASK_SLOTS
```
public static final String TASK_MANAGER_NUM_TASK_SLOTS
```
    The config parameter defining the number of task slots of a task manager.
    
    See Also:
    Constant Field Values
  - TASK_MANAGER_DEBUG_MEMORY_USAGE_START_LOG_THREAD
```
public static final String TASK_MANAGER_DEBUG_MEMORY_USAGE_START_LOG_THREAD
```
    Flag indicating whether to start a thread, which repeatedly logs the memory usage of the JVM.
    
    See Also:
    Constant Field Values
  - TASK_MANAGER_DEBUG_MEMORY_USAGE_LOG_INTERVAL_MS
```
public static final String TASK_MANAGER_DEBUG_MEMORY_USAGE_LOG_INTERVAL_MS
```
    The interval (in ms) for the log thread to log the current memory usage.
    
    See Also:
    Constant Field Values
  - TASK_MANAGER_MAX_REGISTRATION_DURATION
```
public static final String TASK_MANAGER_MAX_REGISTRATION_DURATION
```
    See Also:
    Constant Field Values
  - DEFAULT_SPILLING_MAX_FAN_KEY
```
public static final String DEFAULT_SPILLING_MAX_FAN_KEY
```
    Parameter for the maximum fan for out-of-core algorithms. Corresponds to the maximum fan-in for merge-sorts and the maximum fan-out for hybrid hash joins.
    
    See Also:
    Constant Field Values
  - DEFAULT_SORT_SPILLING_THRESHOLD_KEY
```
public static final String DEFAULT_SORT_SPILLING_THRESHOLD_KEY
```
    Key for the default spilling threshold. When more than the threshold memory of the sort buffers is full, the sorter will start spilling to disk.
    
    See Also:
    Constant Field Values
  - RUNTIME_HASH_JOIN_BLOOM_FILTERS_KEY
```
public static final String RUNTIME_HASH_JOIN_BLOOM_FILTERS_KEY
```
    Parameter to switch hash join bloom filters for spilled partitions on and off.
    
    See Also:
    Constant Field Values
  - FS_STREAM_OPENING_TIMEOUT_KEY
```
public static final String FS_STREAM_OPENING_TIMEOUT_KEY
```
    The config parameter defining the timeout for filesystem stream opening. A value of 0 indicates infinite waiting.
    
    See Also:
    Constant Field Values
  - YARN_VCORES
```
public static final String YARN_VCORES
```
    The vcores exposed by YYARN.
    
    See Also:
    Constant Field Values
  - YARN_HEAP_CUTOFF_RATIO
```
public static final String YARN_HEAP_CUTOFF_RATIO
```
    Percentage of heap space to remove from containers started by YARN.
    
    See Also:
    Constant Field Values
  - YARN_HEAP_CUTOFF_MIN
```
public static final String YARN_HEAP_CUTOFF_MIN
```
    Minimum amount of memory to remove from the heap space as a safety margin.
    
    See Also:
    Constant Field Values
  - YARN_REALLOCATE_FAILED_CONTAINERS
```
public static final String YARN_REALLOCATE_FAILED_CONTAINERS
```
    Reallocate failed YARN containers.
    
    See Also:
    Constant Field Values
  - YARN_MAX_FAILED_CONTAINERS
```
public static final String YARN_MAX_FAILED_CONTAINERS
```
    The maximum number of failed YARN containers before entirely stopping the YARN session / job on YARN. By default, we take the number of of initially requested containers.
    
    See Also:
    Constant Field Values
  - YARN_APPLICATION_ATTEMPTS
```
public static final String YARN_APPLICATION_ATTEMPTS
```
    Set the number of retries for failed YARN ApplicationMasters/JobManagers in high availability mode. This value is usually limited by YARN. By default, it's 1 in the standalone case and 2 in the high availability case.
    
    See Also:
    Constant Field Values
  - YARN_HEARTBEAT_DELAY_SECONDS
```
public static final String YARN_HEARTBEAT_DELAY_SECONDS
```
    The heartbeat interval between the Application Master and the YARN Resource Manager. The default value is 5 (seconds).
    
    See Also:
    Constant Field Values
  - YARN_PROPERTIES_FILE_LOCATION
```
public static final String YARN_PROPERTIES_FILE_LOCATION
```
    When a Flink job is submitted to YARN, the JobManager's host and the number of available processing slots is written into a properties file, so that the Flink client is able to pick those details up. This configuration parameter allows changing the default location of that file (for example for environments sharing a Flink installation between users)
    
    See Also:
    Constant Field Values
  - YARN_APPLICATION_MASTER_ENV_PREFIX
```
public static final String YARN_APPLICATION_MASTER_ENV_PREFIX
```
    Prefix for passing custom environment variables to Flink's ApplicationMaster (JobManager). For example for passing LD_LIBRARY_PATH as an env variable to the AppMaster, set: yarn.application-master.env.LD_LIBRARY_PATH: "/usr/lib/native" in the flink-conf.yaml.
    
    See Also:
    Constant Field Values
  - YARN_TASK_MANAGER_ENV_PREFIX
```
public static final String YARN_TASK_MANAGER_ENV_PREFIX
```
    Similar to the YARN_APPLICATION_MASTER_ENV_PREFIX, this configuration prefix allows setting custom environment variables.
    
    See Also:
    Constant Field Values
  - YARN_APPLICATION_MASTER_PORT
```
public static final String YARN_APPLICATION_MASTER_PORT
```
    The config parameter defining the Akka actor system port for the ApplicationMaster and JobManager The port can either be a port, such as "9123", a range of ports: "50100-50200" or a list of ranges and or points: "50100-50200,50300-50400,51234" Setting the port to 0 will let the OS choose an available port.
    
    See Also:
    Constant Field Values
  - HDFS_DEFAULT_CONFIG
```
public static final String HDFS_DEFAULT_CONFIG
```
    Path to hdfs-defaul.xml file
    
    See Also:
    Constant Field Values
  - HDFS_SITE_CONFIG
```
public static final String HDFS_SITE_CONFIG
```
    Path to hdfs-site.xml file
    
    See Also:
    Constant Field Values
  - PATH_HADOOP_CONFIG
```
public static final String PATH_HADOOP_CONFIG
```
    Path to Hadoop configuration
    
    See Also:
    Constant Field Values
  - FILESYSTEM_SCHEME
```
public static final String FILESYSTEM_SCHEME
```
    Key to specify the default filesystem to be used by a job. In the case of file:///, which is the default (see DEFAULT_FILESYSTEM_SCHEME), the local filesystem is going to be used to resolve URIs without an explicit scheme.
    
    See Also:
    Constant Field Values
  - FILESYSTEM_DEFAULT_OVERWRITE_KEY
```
public static final String FILESYSTEM_DEFAULT_OVERWRITE_KEY
```
    Key to specify whether the file systems should simply overwrite existing files.
    
    See Also:
    Constant Field Values
  - FILESYSTEM_OUTPUT_ALWAYS_CREATE_DIRECTORY_KEY
```
public static final String FILESYSTEM_OUTPUT_ALWAYS_CREATE_DIRECTORY_KEY
```
    Key to specify whether the file systems should always create a directory for the output, even with a parallelism of one.
    
    See Also:
    Constant Field Values
  - DELIMITED_FORMAT_MAX_LINE_SAMPLES_KEY
```
public static final String DELIMITED_FORMAT_MAX_LINE_SAMPLES_KEY
```
    The maximum number of line samples to be taken by the delimited input format, if no other value is specified for the data source.
    
    See Also:
    Constant Field Values
  - DELIMITED_FORMAT_MIN_LINE_SAMPLES_KEY
```
public static final String DELIMITED_FORMAT_MIN_LINE_SAMPLES_KEY
```
    The minimum number of line samples to be taken by the delimited input format, if no other value is specified for the data source.
    
    See Also:
    Constant Field Values
  - DELIMITED_FORMAT_MAX_SAMPLE_LENGTH_KEY
```
public static final String DELIMITED_FORMAT_MAX_SAMPLE_LENGTH_KEY
```
    The maximum length of a single sampled record before the sampling is aborted.
    
    See Also:
    Constant Field Values
  - JOB_MANAGER_WEB_PORT_KEY
```
public static final String JOB_MANAGER_WEB_PORT_KEY
```
    The port for the runtime monitor web-frontend server.
    
    See Also:
    Constant Field Values
  - JOB_MANAGER_WEB_ARCHIVE_COUNT
```
public static final String JOB_MANAGER_WEB_ARCHIVE_COUNT
```
    The config parameter defining the number of archived jobs for the jobmanager
    
    See Also:
    Constant Field Values
  - JOB_MANAGER_WEB_LOG_PATH_KEY
```
public static final String JOB_MANAGER_WEB_LOG_PATH_KEY
```
    The log file location (may be in /log for standalone but under log directory when using YARN)
    
    See Also:
    Constant Field Values
  - JOB_MANAGER_WEB_SUBMIT_ENABLED_KEY
```
public static final String JOB_MANAGER_WEB_SUBMIT_ENABLED_KEY
```
    Config parameter indicating whether jobs can be uploaded and run from the web-frontend.
    
    See Also:
    Constant Field Values
  - JOB_MANAGER_WEB_CHECKPOINTS_DISABLE
```
public static final String JOB_MANAGER_WEB_CHECKPOINTS_DISABLE
```
    Flag to disable checkpoint stats.
    
    See Also:
    Constant Field Values
  - JOB_MANAGER_WEB_CHECKPOINTS_HISTORY_SIZE
```
public static final String JOB_MANAGER_WEB_CHECKPOINTS_HISTORY_SIZE
```
    Config parameter defining the number of checkpoints to remember for recent history.
    
    See Also:
    Constant Field Values
  - JOB_MANAGER_WEB_BACK_PRESSURE_CLEAN_UP_INTERVAL
```
public static final String JOB_MANAGER_WEB_BACK_PRESSURE_CLEAN_UP_INTERVAL
```
    Time after which cached stats are cleaned up if not accessed.
    
    See Also:
    Constant Field Values
  - JOB_MANAGER_WEB_BACK_PRESSURE_REFRESH_INTERVAL
```
public static final String JOB_MANAGER_WEB_BACK_PRESSURE_REFRESH_INTERVAL
```
    Time after which available stats are deprecated and need to be refreshed (by resampling).
    
    See Also:
    Constant Field Values
  - JOB_MANAGER_WEB_BACK_PRESSURE_NUM_SAMPLES
```
public static final String JOB_MANAGER_WEB_BACK_PRESSURE_NUM_SAMPLES
```
    Number of stack trace samples to take to determine back pressure.
    
    See Also:
    Constant Field Values
  - JOB_MANAGER_WEB_BACK_PRESSURE_DELAY
```
public static final String JOB_MANAGER_WEB_BACK_PRESSURE_DELAY
```
    Delay between stack trace samples to determine back pressure.
    
    See Also:
    Constant Field Values
  - AKKA_STARTUP_TIMEOUT
```
public static final String AKKA_STARTUP_TIMEOUT
```
    Timeout for the startup of the actor system
    
    See Also:
    Constant Field Values
  - AKKA_TRANSPORT_HEARTBEAT_INTERVAL
```
public static final String AKKA_TRANSPORT_HEARTBEAT_INTERVAL
```
    Heartbeat interval of the transport failure detector
    
    See Also:
    Constant Field Values
  - AKKA_TRANSPORT_HEARTBEAT_PAUSE
```
public static final String AKKA_TRANSPORT_HEARTBEAT_PAUSE
```
    Allowed heartbeat pause for the transport failure detector
    
    See Also:
    Constant Field Values
  - AKKA_TRANSPORT_THRESHOLD
```
public static final String AKKA_TRANSPORT_THRESHOLD
```
    Detection threshold of transport failure detector
    
    See Also:
    Constant Field Values
  - AKKA_WATCH_HEARTBEAT_INTERVAL
```
public static final String AKKA_WATCH_HEARTBEAT_INTERVAL
```
    Heartbeat interval of watch failure detector
    
    See Also:
    Constant Field Values
  - AKKA_WATCH_HEARTBEAT_PAUSE
```
public static final String AKKA_WATCH_HEARTBEAT_PAUSE
```
    Allowed heartbeat pause for the watch failure detector
    
    See Also:
    Constant Field Values
  - AKKA_WATCH_THRESHOLD
```
public static final String AKKA_WATCH_THRESHOLD
```
    Detection threshold for the phi accrual watch failure detector
    
    See Also:
    Constant Field Values
  - AKKA_TCP_TIMEOUT
```
public static final String AKKA_TCP_TIMEOUT
```
    Akka TCP timeout
    
    See Also:
    Constant Field Values
  - AKKA_FRAMESIZE
```
public static final String AKKA_FRAMESIZE
```
    Maximum framesize of akka messages
    
    See Also:
    Constant Field Values
  - AKKA_DISPATCHER_THROUGHPUT
```
public static final String AKKA_DISPATCHER_THROUGHPUT
```
    Maximum number of messages until another actor is executed by the same thread
    
    See Also:
    Constant Field Values
  - AKKA_LOG_LIFECYCLE_EVENTS
```
public static final String AKKA_LOG_LIFECYCLE_EVENTS
```
    Log lifecycle events
    
    See Also:
    Constant Field Values
  - AKKA_ASK_TIMEOUT
```
public static final String AKKA_ASK_TIMEOUT
```
    Timeout for all blocking calls on the cluster side
    
    See Also:
    Constant Field Values
  - AKKA_LOOKUP_TIMEOUT
```
public static final String AKKA_LOOKUP_TIMEOUT
```
    Timeout for all blocking calls that look up remote actors
    
    See Also:
    Constant Field Values
  - AKKA_CLIENT_TIMEOUT
```
public static final String AKKA_CLIENT_TIMEOUT
```
    Timeout for all blocking calls on the client side
    
    See Also:
    Constant Field Values
  - AKKA_JVM_EXIT_ON_FATAL_ERROR
```
public static final String AKKA_JVM_EXIT_ON_FATAL_ERROR
```
    Exit JVM on fatal Akka errors
    
    See Also:
    Constant Field Values
  - STATE_BACKEND
```
public static final String STATE_BACKEND
```
    State backend for checkpoints;
    
    See Also:
    Constant Field Values
  - FLINK_BASE_DIR_PATH_KEY
```
public static final String FLINK_BASE_DIR_PATH_KEY
```
    The key to the Flink base directory path
    
    See Also:
    Constant Field Values
  - FLINK_JVM_OPTIONS
```
public static final String FLINK_JVM_OPTIONS
```
    See Also:
    Constant Field Values
  - RECOVERY_MODE
```
public static final String RECOVERY_MODE
```
    Defines recovery mode used for the cluster execution ("standalone", "zookeeper")
    
    See Also:
    Constant Field Values
  - RECOVERY_JOB_MANAGER_PORT
```
public static final String RECOVERY_JOB_MANAGER_PORT
```
    Ports used by the job manager if not in standalone recovery mode
    
    See Also:
    Constant Field Values
  - RECOVERY_JOB_DELAY
```
public static final String RECOVERY_JOB_DELAY
```
    The time before the JobManager recovers persisted jobs
    
    See Also:
    Constant Field Values
  - ZOOKEEPER_QUORUM_KEY
```
public static final String ZOOKEEPER_QUORUM_KEY
```
    ZooKeeper servers.
    
    See Also:
    Constant Field Values
  - ZOOKEEPER_RECOVERY_PATH
```
public static final String ZOOKEEPER_RECOVERY_PATH
```
    File system state backend base path for recoverable state handles. Recovery state is written to this path and the file state handles are persisted for recovery.
    
    See Also:
    Constant Field Values
  - ZOOKEEPER_DIR_KEY
```
public static final String ZOOKEEPER_DIR_KEY
```
    ZooKeeper root path.
    
    See Also:
    Constant Field Values
  - ZOOKEEPER_LATCH_PATH
```
public static final String ZOOKEEPER_LATCH_PATH
```
    See Also:
    Constant Field Values
  - ZOOKEEPER_LEADER_PATH
```
public static final String ZOOKEEPER_LEADER_PATH
```
    See Also:
    Constant Field Values
  - ZOOKEEPER_JOBGRAPHS_PATH
```
public static final String ZOOKEEPER_JOBGRAPHS_PATH
```
    ZooKeeper root path (ZNode) for job graphs.
    
    See Also:
    Constant Field Values
  - ZOOKEEPER_CHECKPOINTS_PATH
```
public static final String ZOOKEEPER_CHECKPOINTS_PATH
```
    ZooKeeper root path (ZNode) for completed checkpoints.
    
    See Also:
    Constant Field Values
  - ZOOKEEPER_CHECKPOINT_COUNTER_PATH
```
public static final String ZOOKEEPER_CHECKPOINT_COUNTER_PATH
```
    ZooKeeper root path (ZNode) for checkpoint counters.
    
    See Also:
    Constant Field Values
  - ZOOKEEPER_SESSION_TIMEOUT
```
public static final String ZOOKEEPER_SESSION_TIMEOUT
```
    See Also:
    Constant Field Values
  - ZOOKEEPER_CONNECTION_TIMEOUT
```
public static final String ZOOKEEPER_CONNECTION_TIMEOUT
```
    See Also:
    Constant Field Values
  - ZOOKEEPER_RETRY_WAIT
```
public static final String ZOOKEEPER_RETRY_WAIT
```
    See Also:
    Constant Field Values
  - ZOOKEEPER_MAX_RETRY_ATTEMPTS
```
public static final String ZOOKEEPER_MAX_RETRY_ATTEMPTS
```
    See Also:
    Constant Field Values
  - DEFAULT_PARALLELISM
```
public static final int DEFAULT_PARALLELISM
```
    The default parallelism for operations.
    
    See Also:
    Constant Field Values
  - DEFAULT_EXECUTION_RETRIES
```
public static final int DEFAULT_EXECUTION_RETRIES
```
    The default number of execution retries.
    
    See Also:
    Constant Field Values
  - DEFAULT_LIBRARY_CACHE_MANAGER_CLEANUP_INTERVAL
```
public static final long DEFAULT_LIBRARY_CACHE_MANAGER_CLEANUP_INTERVAL
```
    The default library cache manager cleanup interval in seconds
    
    See Also:
    Constant Field Values
  - DEFAULT_JOB_MANAGER_IPC_PORT
```
public static final int DEFAULT_JOB_MANAGER_IPC_PORT
```
    The default network port to connect to for communication with the job manager.
    
    See Also:
    Constant Field Values
  - DEFAULT_BLOB_FETCH_RETRIES
```
public static final int DEFAULT_BLOB_FETCH_RETRIES
```
    Default number of retries for failed BLOB fetches.
    
    See Also:
    Constant Field Values
  - DEFAULT_BLOB_FETCH_CONCURRENT
```
public static final int DEFAULT_BLOB_FETCH_CONCURRENT
```
    Default number of concurrent BLOB fetch operations.
    
    See Also:
    Constant Field Values
  - DEFAULT_BLOB_FETCH_BACKLOG
```
public static final int DEFAULT_BLOB_FETCH_BACKLOG
```
    Default BLOB fetch connection backlog.
    
    See Also:
    Constant Field Values
  - DEFAULT_BLOB_SERVER_PORT
```
public static final String DEFAULT_BLOB_SERVER_PORT
```
    Default BLOB server port. 0 means ephemeral port.
    
    See Also:
    Constant Field Values
  - DEFAULT_TASK_MANAGER_IPC_PORT
```
public static final int DEFAULT_TASK_MANAGER_IPC_PORT
```
    The default network port the task manager expects incoming IPC connections. The 0 means that the TaskManager searches for a free port.
    
    See Also:
    Constant Field Values
  - DEFAULT_TASK_MANAGER_DATA_PORT
```
public static final int DEFAULT_TASK_MANAGER_DATA_PORT
```
    The default network port the task manager expects to receive transfer envelopes on. The 0 means that the TaskManager searches for a free port.
    
    See Also:
    Constant Field Values
  - DEFAULT_TASK_MANAGER_TMP_PATH
```
public static final String DEFAULT_TASK_MANAGER_TMP_PATH
```
    The default directory for temporary files of the task manager.
  - DEFAULT_MEMORY_MANAGER_MEMORY_FRACTION
```
public static final float DEFAULT_MEMORY_MANAGER_MEMORY_FRACTION
```
    The default fraction of the free memory allocated by the task manager's memory manager.
    
    See Also:
    Constant Field Values
  - DEFAULT_TASK_MANAGER_NETWORK_NUM_BUFFERS
```
public static final int DEFAULT_TASK_MANAGER_NETWORK_NUM_BUFFERS
```
    Default number of buffers used in the network stack.
    
    See Also:
    Constant Field Values
  - DEFAULT_TASK_MANAGER_MEMORY_SEGMENT_SIZE
```
public static final int DEFAULT_TASK_MANAGER_MEMORY_SEGMENT_SIZE
```
    Default size of memory segments in the network stack and the memory manager.
    
    See Also:
    Constant Field Values
  - DEFAULT_TASK_MANAGER_NETWORK_DEFAULT_IO_MODE
```
public static final String DEFAULT_TASK_MANAGER_NETWORK_DEFAULT_IO_MODE
```
    The implementation to use for spillable/spilled intermediate results, which have both synchronous and asynchronous implementations: "sync" or "async".
    
    See Also:
    Constant Field Values
  - DEFAULT_TASK_MANAGER_DEBUG_MEMORY_USAGE_START_LOG_THREAD
```
public static final boolean DEFAULT_TASK_MANAGER_DEBUG_MEMORY_USAGE_START_LOG_THREAD
```
    Flag indicating whether to start a thread, which repeatedly logs the memory usage of the JVM.
    
    See Also:
    Constant Field Values
  - DEFAULT_TASK_MANAGER_DEBUG_MEMORY_USAGE_LOG_INTERVAL_MS
```
public static final long DEFAULT_TASK_MANAGER_DEBUG_MEMORY_USAGE_LOG_INTERVAL_MS
```
    The interval (in ms) for the log thread to log the current memory usage.
    
    See Also:
    Constant Field Values
  - DEFAULT_TASK_MANAGER_MAX_REGISTRATION_DURATION
```
public static final String DEFAULT_TASK_MANAGER_MAX_REGISTRATION_DURATION
```
    The default task manager's maximum registration duration
    
    See Also:
    Constant Field Values
  - DEFAULT_TASK_MANAGER_MEMORY_PRE_ALLOCATE
```
public static final boolean DEFAULT_TASK_MANAGER_MEMORY_PRE_ALLOCATE
```
    The default setting for TaskManager memory eager allocation of managed memory
    
    See Also:
    Constant Field Values
  - DEFAULT_RUNTIME_HASH_JOIN_BLOOM_FILTERS
```
public static final boolean DEFAULT_RUNTIME_HASH_JOIN_BLOOM_FILTERS
```
    Default setting for the switch for hash join bloom filters for spilled partitions.
    
    See Also:
    Constant Field Values
  - DEFAULT_SPILLING_MAX_FAN
```
public static final int DEFAULT_SPILLING_MAX_FAN
```
    The default value for the maximum spilling fan in/out.
    
    See Also:
    Constant Field Values
  - DEFAULT_SORT_SPILLING_THRESHOLD
```
public static final float DEFAULT_SORT_SPILLING_THRESHOLD
```
    The default percentage of the sort memory to be full before data is spilled.
    
    See Also:
    Constant Field Values
  - DEFAULT_FS_STREAM_OPENING_TIMEOUT
```
public static final int DEFAULT_FS_STREAM_OPENING_TIMEOUT
```
    The default timeout for filesystem stream opening: infinite (means max long milliseconds).
    
    See Also:
    Constant Field Values
  - DEFAULT_YARN_MIN_HEAP_CUTOFF
```
public static final int DEFAULT_YARN_MIN_HEAP_CUTOFF
```
    Minimum amount of Heap memory to subtract from the requested TaskManager size. We came up with these values experimentally. Flink fails when the cutoff is set only to 500 mb.
    
    See Also:
    Constant Field Values
  - DEFAULT_YARN_HEAP_CUTOFF_RATIO
```
public static final float DEFAULT_YARN_HEAP_CUTOFF_RATIO
```
    Relative amount of memory to subtract from the requested memory.
    
    See Also:
    Constant Field Values
  - DEFAULT_YARN_APPLICATION_MASTER_PORT
```
public static final String DEFAULT_YARN_APPLICATION_MASTER_PORT
```
    Default port for the application master is 0, which means the operating system assigns an ephemeral port
    
    See Also:
    Constant Field Values
  - DEFAULT_FILESYSTEM_SCHEME
```
public static final String DEFAULT_FILESYSTEM_SCHEME
```
    The default filesystem to be used, if no other scheme is specified in the user-provided URI (= local filesystem)
    
    See Also:
    Constant Field Values
  - DEFAULT_FILESYSTEM_OVERWRITE
```
public static final boolean DEFAULT_FILESYSTEM_OVERWRITE
```
    The default behavior with respect to overwriting existing files (= not overwrite)
    
    See Also:
    Constant Field Values
  - DEFAULT_FILESYSTEM_ALWAYS_CREATE_DIRECTORY
```
public static final boolean DEFAULT_FILESYSTEM_ALWAYS_CREATE_DIRECTORY
```
    The default behavior for output directory creating (create only directory when parallelism > 1).
    
    See Also:
    Constant Field Values
  - DEFAULT_DELIMITED_FORMAT_MAX_LINE_SAMPLES
```
public static final int DEFAULT_DELIMITED_FORMAT_MAX_LINE_SAMPLES
```
    The default maximum number of line samples taken by the delimited input format.
    
    See Also:
    Constant Field Values
  - DEFAULT_DELIMITED_FORMAT_MIN_LINE_SAMPLES
```
public static final int DEFAULT_DELIMITED_FORMAT_MIN_LINE_SAMPLES
```
    The default minimum number of line samples taken by the delimited input format.
    
    See Also:
    Constant Field Values
  - DEFAULT_DELIMITED_FORMAT_MAX_SAMPLE_LEN
```
public static final int DEFAULT_DELIMITED_FORMAT_MAX_SAMPLE_LEN
```
    The default maximum sample length before sampling is aborted (2 MiBytes).
    
    See Also:
    Constant Field Values
  - DEFAULT_JOB_MANAGER_WEB_FRONTEND_PORT
```
public static final int DEFAULT_JOB_MANAGER_WEB_FRONTEND_PORT
```
    The config key for the port of the JobManager web frontend. Setting this value to -1 disables the web frontend.
    
    See Also:
    Constant Field Values
  - DEFAULT_JOB_MANAGER_WEB_ARCHIVE_COUNT
```
public static final int DEFAULT_JOB_MANAGER_WEB_ARCHIVE_COUNT
```
    The default number of archived jobs for the jobmanager
    
    See Also:
    Constant Field Values
  - DEFAULT_JOB_MANAGER_WEB_SUBMIT_ENABLED
```
public static final boolean DEFAULT_JOB_MANAGER_WEB_SUBMIT_ENABLED
```
    By default, submitting jobs from the web-frontend is allowed.
    
    See Also:
    Constant Field Values
  - DEFAULT_JOB_MANAGER_WEB_CHECKPOINTS_DISABLE
```
public static final boolean DEFAULT_JOB_MANAGER_WEB_CHECKPOINTS_DISABLE
```
    Default flag to disable checkpoint stats.
    
    See Also:
    Constant Field Values
  - DEFAULT_JOB_MANAGER_WEB_CHECKPOINTS_HISTORY_SIZE
```
public static final int DEFAULT_JOB_MANAGER_WEB_CHECKPOINTS_HISTORY_SIZE
```
    Default number of checkpoints to remember for recent history.
    
    See Also:
    Constant Field Values
  - DEFAULT_JOB_MANAGER_WEB_BACK_PRESSURE_CLEAN_UP_INTERVAL
```
public static final int DEFAULT_JOB_MANAGER_WEB_BACK_PRESSURE_CLEAN_UP_INTERVAL
```
    Time after which cached stats are cleaned up.
    
    See Also:
    Constant Field Values
  - DEFAULT_JOB_MANAGER_WEB_BACK_PRESSURE_REFRESH_INTERVAL
```
public static final int DEFAULT_JOB_MANAGER_WEB_BACK_PRESSURE_REFRESH_INTERVAL
```
    Time after which available stats are deprecated and need to be refreshed (by resampling).
    
    See Also:
    Constant Field Values
  - DEFAULT_JOB_MANAGER_WEB_BACK_PRESSURE_NUM_SAMPLES
```
public static final int DEFAULT_JOB_MANAGER_WEB_BACK_PRESSURE_NUM_SAMPLES
```
    Number of samples to take to determine back pressure.
    
    See Also:
    Constant Field Values
  - DEFAULT_JOB_MANAGER_WEB_BACK_PRESSURE_DELAY
```
public static final int DEFAULT_JOB_MANAGER_WEB_BACK_PRESSURE_DELAY
```
    Delay between samples to determine back pressure.
    
    See Also:
    Constant Field Values
  - DEFAULT_AKKA_TRANSPORT_HEARTBEAT_INTERVAL
```
public static String DEFAULT_AKKA_TRANSPORT_HEARTBEAT_INTERVAL
```
  - DEFAULT_AKKA_TRANSPORT_HEARTBEAT_PAUSE
```
public static String DEFAULT_AKKA_TRANSPORT_HEARTBEAT_PAUSE
```
  - DEFAULT_AKKA_TRANSPORT_THRESHOLD
```
public static double DEFAULT_AKKA_TRANSPORT_THRESHOLD
```
  - DEFAULT_AKKA_WATCH_THRESHOLD
```
public static double DEFAULT_AKKA_WATCH_THRESHOLD
```
  - DEFAULT_AKKA_DISPATCHER_THROUGHPUT
```
public static int DEFAULT_AKKA_DISPATCHER_THROUGHPUT
```
  - DEFAULT_AKKA_LOG_LIFECYCLE_EVENTS
```
public static boolean DEFAULT_AKKA_LOG_LIFECYCLE_EVENTS
```
  - DEFAULT_AKKA_FRAMESIZE
```
public static String DEFAULT_AKKA_FRAMESIZE
```
  - DEFAULT_AKKA_ASK_TIMEOUT
```
public static String DEFAULT_AKKA_ASK_TIMEOUT
```
  - DEFAULT_AKKA_LOOKUP_TIMEOUT
```
public static String DEFAULT_AKKA_LOOKUP_TIMEOUT
```
  - DEFAULT_AKKA_CLIENT_TIMEOUT
```
public static String DEFAULT_AKKA_CLIENT_TIMEOUT
```
  - DEFAULT_STATE_BACKEND
```
public static String DEFAULT_STATE_BACKEND
```
  - LOCAL_NUMBER_TASK_MANAGER
```
public static final String LOCAL_NUMBER_TASK_MANAGER
```
    Sets the number of local task managers
    
    See Also:
    Constant Field Values
  - DEFAULT_LOCAL_NUMBER_TASK_MANAGER
```
public static final int DEFAULT_LOCAL_NUMBER_TASK_MANAGER
```
    See Also:
    Constant Field Values
  - LOCAL_NUMBER_JOB_MANAGER
```
public static final String LOCAL_NUMBER_JOB_MANAGER
```
    See Also:
    Constant Field Values
  - DEFAULT_LOCAL_NUMBER_JOB_MANAGER
```
public static final int DEFAULT_LOCAL_NUMBER_JOB_MANAGER
```
    See Also:
    Constant Field Values
  - LOCAL_START_WEBSERVER
```
public static final String LOCAL_START_WEBSERVER
```
    See Also:
    Constant Field Values
  - DEFAULT_RECOVERY_MODE
```
public static String DEFAULT_RECOVERY_MODE
```
  - DEFAULT_RECOVERY_JOB_MANAGER_PORT
```
public static final String DEFAULT_RECOVERY_JOB_MANAGER_PORT
```
    Default port used by the job manager if not in standalone recovery mode. If 0 the OS picks a random port port.
    
    See Also:
    Constant Field Values
  - DEFAULT_ZOOKEEPER_DIR_KEY
```
public static final String DEFAULT_ZOOKEEPER_DIR_KEY
```
    See Also:
    Constant Field Values
  - DEFAULT_ZOOKEEPER_LATCH_PATH
```
public static final String DEFAULT_ZOOKEEPER_LATCH_PATH
```
    See Also:
    Constant Field Values
  - DEFAULT_ZOOKEEPER_LEADER_PATH
```
public static final String DEFAULT_ZOOKEEPER_LEADER_PATH
```
    See Also:
    Constant Field Values
  - DEFAULT_ZOOKEEPER_JOBGRAPHS_PATH
```
public static final String DEFAULT_ZOOKEEPER_JOBGRAPHS_PATH
```
    See Also:
    Constant Field Values
  - DEFAULT_ZOOKEEPER_CHECKPOINTS_PATH
```
public static final String DEFAULT_ZOOKEEPER_CHECKPOINTS_PATH
```
    See Also:
    Constant Field Values
  - DEFAULT_ZOOKEEPER_CHECKPOINT_COUNTER_PATH
```
public static final String DEFAULT_ZOOKEEPER_CHECKPOINT_COUNTER_PATH
```
    See Also:
    Constant Field Values
  - DEFAULT_ZOOKEEPER_SESSION_TIMEOUT
```
public static final int DEFAULT_ZOOKEEPER_SESSION_TIMEOUT
```
    See Also:
    Constant Field Values
  - DEFAULT_ZOOKEEPER_CONNECTION_TIMEOUT
```
public static final int DEFAULT_ZOOKEEPER_CONNECTION_TIMEOUT
```
    See Also:
    Constant Field Values
  - DEFAULT_ZOOKEEPER_RETRY_WAIT
```
public static final int DEFAULT_ZOOKEEPER_RETRY_WAIT
```
    See Also:
    Constant Field Values
  - DEFAULT_ZOOKEEPER_MAX_RETRY_ATTEMPTS
```
public static final int DEFAULT_ZOOKEEPER_MAX_RETRY_ATTEMPTS
```
    See Also:
    Constant Field Values
  - DEFAULT_ZOOKEEPER_CLIENT_PORT
```
public static final int DEFAULT_ZOOKEEPER_CLIENT_PORT
```
    ZooKeeper default client port.
    
    See Also:
    Constant Field Values
  - DEFAULT_ZOOKEEPER_INIT_LIMIT
```
public static final int DEFAULT_ZOOKEEPER_INIT_LIMIT
```
    ZooKeeper default init limit.
    
    See Also:
    Constant Field Values
  - DEFAULT_ZOOKEEPER_SYNC_LIMIT
```
public static final int DEFAULT_ZOOKEEPER_SYNC_LIMIT
```
    ZooKeeper default sync limit.
    
    See Also:
    Constant Field Values
  - DEFAULT_ZOOKEEPER_PEER_PORT
```
public static final int DEFAULT_ZOOKEEPER_PEER_PORT
```
    ZooKeeper default peer port.
    
    See Also:
    Constant Field Values
  - DEFAULT_ZOOKEEPER_LEADER_PORT
```
public static final int DEFAULT_ZOOKEEPER_LEADER_PORT
```
    ZooKeeper default leader port.
    
    See Also:
    Constant Field Values

Class ConfigConstants

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_PARALLELISM_KEY

RESTART_STRATEGY

RESTART_STRATEGY_FIXED_DELAY_ATTEMPTS

RESTART_STRATEGY_FIXED_DELAY_DELAY

EXECUTION_RETRIES_KEY

EXECUTION_RETRY_DELAY_KEY

JOB_MANAGER_IPC_ADDRESS_KEY

JOB_MANAGER_IPC_PORT_KEY

BLOB_STORAGE_DIRECTORY_KEY

BLOB_FETCH_RETRIES_KEY

BLOB_FETCH_CONCURRENT_KEY

BLOB_FETCH_BACKLOG_KEY

BLOB_SERVER_PORT

LIBRARY_CACHE_MANAGER_CLEANUP_INTERVAL

TASK_MANAGER_HOSTNAME_KEY

TASK_MANAGER_IPC_PORT_KEY

TASK_MANAGER_DATA_PORT_KEY

TASK_MANAGER_TMP_DIR_KEY

TASK_MANAGER_MEMORY_SIZE_KEY

TASK_MANAGER_MEMORY_FRACTION_KEY

TASK_MANAGER_MEMORY_OFF_HEAP_KEY

TASK_MANAGER_MEMORY_PRE_ALLOCATE_KEY

TASK_MANAGER_NETWORK_NUM_BUFFERS_KEY

TASK_MANAGER_MEMORY_SEGMENT_SIZE_KEY

TASK_MANAGER_NETWORK_DEFAULT_IO_MODE

TASK_MANAGER_NUM_TASK_SLOTS

TASK_MANAGER_DEBUG_MEMORY_USAGE_START_LOG_THREAD

TASK_MANAGER_DEBUG_MEMORY_USAGE_LOG_INTERVAL_MS

TASK_MANAGER_MAX_REGISTRATION_DURATION

DEFAULT_SPILLING_MAX_FAN_KEY

DEFAULT_SORT_SPILLING_THRESHOLD_KEY

RUNTIME_HASH_JOIN_BLOOM_FILTERS_KEY

FS_STREAM_OPENING_TIMEOUT_KEY

YARN_VCORES

YARN_HEAP_CUTOFF_RATIO

YARN_HEAP_CUTOFF_MIN

YARN_REALLOCATE_FAILED_CONTAINERS

YARN_MAX_FAILED_CONTAINERS

YARN_APPLICATION_ATTEMPTS

YARN_HEARTBEAT_DELAY_SECONDS

YARN_PROPERTIES_FILE_LOCATION

YARN_APPLICATION_MASTER_ENV_PREFIX

YARN_TASK_MANAGER_ENV_PREFIX

YARN_APPLICATION_MASTER_PORT

HDFS_DEFAULT_CONFIG

HDFS_SITE_CONFIG

PATH_HADOOP_CONFIG

FILESYSTEM_SCHEME

FILESYSTEM_DEFAULT_OVERWRITE_KEY

FILESYSTEM_OUTPUT_ALWAYS_CREATE_DIRECTORY_KEY

DELIMITED_FORMAT_MAX_LINE_SAMPLES_KEY

DELIMITED_FORMAT_MIN_LINE_SAMPLES_KEY

DELIMITED_FORMAT_MAX_SAMPLE_LENGTH_KEY

JOB_MANAGER_WEB_PORT_KEY

JOB_MANAGER_WEB_ARCHIVE_COUNT

JOB_MANAGER_WEB_LOG_PATH_KEY

JOB_MANAGER_WEB_SUBMIT_ENABLED_KEY

JOB_MANAGER_WEB_CHECKPOINTS_DISABLE

JOB_MANAGER_WEB_CHECKPOINTS_HISTORY_SIZE

JOB_MANAGER_WEB_BACK_PRESSURE_CLEAN_UP_INTERVAL

JOB_MANAGER_WEB_BACK_PRESSURE_REFRESH_INTERVAL

JOB_MANAGER_WEB_BACK_PRESSURE_NUM_SAMPLES

JOB_MANAGER_WEB_BACK_PRESSURE_DELAY

AKKA_STARTUP_TIMEOUT

AKKA_TRANSPORT_HEARTBEAT_INTERVAL

AKKA_TRANSPORT_HEARTBEAT_PAUSE

AKKA_TRANSPORT_THRESHOLD

AKKA_WATCH_HEARTBEAT_INTERVAL

AKKA_WATCH_HEARTBEAT_PAUSE

AKKA_WATCH_THRESHOLD

AKKA_TCP_TIMEOUT

AKKA_FRAMESIZE

AKKA_DISPATCHER_THROUGHPUT

AKKA_LOG_LIFECYCLE_EVENTS

AKKA_ASK_TIMEOUT