java.lang.Object
- java.lang.Enum<PgxConfig.Field>
- - oracle.pgx.config.PgxConfig.Field

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<PgxConfig.Field>, ConfigField

Enclosing class:

PgxConfig
```
public static enum PgxConfig.Field
extends java.lang.Enum<PgxConfig.Field>
implements ConfigField
```
Fields of PGX Engine Config

Enum Constant Summary

Enum Constants
Enum Constant	Description
`ADMIN_REQUEST_CACHE_TIMEOUT`	after how many seconds admin request results get removed from the cache.
`ALLOW_IDLE_TIMEOUT_OVERWRITE`	if `true`, sessions can overwrite default idle timeout
`ALLOW_LAZY_LOADING_FOR_DATABASE_GRAPHS`	if `true`, PGX will automatically load graphs from the database when they are first referenced in graph queries
`ALLOW_OVERRIDE_SCHEDULING_INFORMATION`	if `true` allow all users to override scheduling information like task weight, task priority and number of threads
`ALLOW_TASK_TIMEOUT_OVERWRITE`	if `true`, sessions can overwrite default task timeout
`ALLOW_USER_AUTO_REFRESH`	if `true` users may enable auto refresh for graphs they load.
`ALLOWED_REMOTE_LOADING_LOCATIONS`	(This option may reduce security, use it only if you know what you are doing!) Allow loading graphs into the PGX engine from remote locations.
`AUTHORIZATION`	mapping of users and roles to resources and permissions for authorization
`AUTHORIZATION_SESSION_CREATE_ALLOW_ALL`	if `true` allow all users to create a PGX session regardless of permissions granted to them
`BACKEND_WRAPPER`	Only for internal use.
`BASIC_SCHEDULER_CONFIG`	configuration parameters for the fork join pool backend
`BFS_ITERATE_QUE_TASK_SIZE`	task size for BFS iterate QUE phase
`BFS_THRESHOLD_PARENT_READ_BASED`	threshold of BFS traversal level items above which to switch to parent-read-based visiting strategy
`BFS_THRESHOLD_READ_BASED`	threshold of BFS traversal level items above which to switch to read-based visiting strategy
`BFS_THRESHOLD_SINGLE_THREADED`	until what number of BFS traversal level items vertices are visited single-threaded
`BUILTINS_PATH`	Path to the builtin algorithms directory.
`CHARACTER_SET`	standard charset to use throughout PGX, UTF-8 will be used as default.
`CNI_DIFF_FACTOR_DEFAULT`	default diff factor value used in the common neighbor iterator implementations.
`CNI_SMALL_DEFAULT`	default value used in the common neighbor iterator implementations, to indicate below which threshold a subarray is considered small.
`CNI_STOP_RECURSION_DEFAULT`	default value used in the common neighbor iterator implementations, to indicate the minimum size where the binary search approach is applied.
`COMMON_LOG_CONFIGURE`	Path to a log configuration in Logback syntax.
`DATA_MEMORY_LIMITS`	memory limits configuration parameters
`DEBUG_SERVER`	Hostname of the debug server.
`DFS_THRESHOLD_LARGE`	value that determines at which number of visited vertices the DFS implementation will switch to data-structures that are more optimized for larger numbers of vertices.
`ENABLE_CSRF_TOKEN_CHECKS`	if true, the PGX webapp will verify CSRF token cookie and request parameters sent by the client exist and match.
`ENABLE_ENGINE_TLS`	If `true`, the engine enables transport layer security (TLS) for connections between engine processes.
`ENABLE_GM_COMPILER`	if `true`, enable dynamic compilation of Green-Marl code during runtime
`ENABLE_GRAPH_LOADING_CACHE`	if `true`, activate the graph loading cache that will accelerate loading of graphs that were previously loaded (can only be disabled in embedded mode)
`ENABLE_MEMORY_LIMITS_CHECKS`	if true, PGX will enforce the configured memory limits
`ENABLE_ML_ACCELERATORS`	if `true`, will utilize available ML accelerators to run machine learning trainings faster.
`ENABLE_SHUTDOWN_CLEANUP_HOOK`	if `true` PGX will add a JVM shutdown hook that will automatically shutdown PGX at JVM shutdown.
`ENABLE_SNAPSHOT_PROPERTIES_PUBLISH_STATE_PROPAGATION`	if `true`, properties in a new snapshot will inherit the publishing state of properties in the parent snapshot
`ENGINE_CONNECTION_TIMEOUT_SECS`	Timeout in seconds to setup the initial connections among PGX.D processes.
`ENGINE_TLS_CIPHER`	Cipher suite name (in OpenSSL syntax) to be used by the engine for securing TLS connections.
`ENGINE_TLS_EXPECTED_DN`	If non empty, the engine will verify that the peer's certificate's Subject Distinguished Name matches exactly the given string.
`ENGINE_TLS_KEYSTORE`	Path to the PKCS12 keystore to be used by the engine for securing mutual TLS connections between engine processes.
`ENGINE_TLS_TRUSTSTORE`	Path to the PEM truststore to be used by the engine for securing mutual TLS connections between engine processes.
`ENGINE_TLS_VERIFY_HOSTNAME`	If `true`, the engine will verify that the hostname contained in the peer's certificate matches the hostname of the peer.
`ENTERPRISE_SCHEDULER_CONFIG`	configuration parameters for the enterprise scheduler
`ENTERPRISE_SCHEDULER_FLAGS`	[relevant for `enterprise_scheduler`] enterprise scheduler specific settings.
`EXECUTABLE_PATH`	Path to the PGX.D executable.
`EXISTING_HOSTNAMES`	A list of names or IP addresses of hosts that are already part of an existing PGX.D cluster.
`EXPLICIT_SPIN_LOCKS`	`true` means spin explicitly in a loop until lock becomes available.
`FILE_LOCATIONS`	the file-locations that can be used in the authorization-config
`GRAPH_ALGORITHM_LANGUAGE`	Frontend compiler to use.
`GRAPH_SHARING_OPTION`	control if a graph can be published and shared with other users
`GRAPH_VALIDATION_LEVEL`	level of validation performed on newly loaded or created graphs
`HANDSHAKE_PORT`	a TCP port which will be used for handshaking of distributed backend processes.
`HOSTNAMES`	A list of names or IP addresses of hosts which should be involved in initial bootstrapping of a PGX.D cluster.
`IF_ETHERNET`	Ethernet network interface, used to initialize the network transport layer when using Ethernet.
`IF_INFINIBAND`	InfiniBand network interface, used to initialize the network transport layer when using InfiniBand.
`IGNORE_INCOMPATIBLE_BACKEND_OPERATIONS`	if `true` only log when encountering incompatible operations and configuration values in RTS or FJ pool.
`IN_PLACE_UPDATE_CONSISTENCY_MODEL`	Consistency model used when in-place updates occur.
`INIT_PGQL_ON_STARTUP`	if `true` PGQL is directly initialized on start-up of PGX.
`INSTANCE_NAME`	Instance name sent as label to debug server.
`INTERVAL_TO_POLL_MAX`	Exponential backoff upper bound (in ms) to which -once reached, the job status polling interval is fixed
`JAVA_CLASS_PATH`	Path to required java libraries.
`JAVA_HOME_DIR`	The path to Java's home directory.
`LARGE_ARRAY_THRESHOLD`	threshold when the size of an array is too big to use a normal Java array.
`LARGE_BUF_COUNT`	Number of large buffers populated in the pool.
`LARGE_BUF_SIZE_KB`	Size in kB of the large buffers.
`LAUNCH_WATCHDOGS`	(for debugging) if `true`, additional watch-dog threads will be launched which monitor and log engine health stats
`LIVENESS_CHECK_DELAY_SECS`	Liveness check interval, i.e., how often to check that the PGX.D server is alive and that it can accept and execute commands.
`LIVENESS_CHECK_TIMEOUT_SECS`	Fails liveness check task if it cannot complete the liveness task in the period of time.
`LOG_CONFIGURE`	Path to a log configuration in Log4j (version 1) syntax.
`LOG_STD_REDIRECT`	Path to a log file into which the standard output streams (stdout, stderr) of PGX.D backend should be redirected.
`MAX_ACTIVE_SESSIONS`	the maximum number of sessions allowed to be active at a time
`MAX_DISTINCT_STRINGS_PER_POOL`	[only relevant if `string_pooling_strategy` is `indexed`] amount of distinct strings per property after which to stop pooling.
`MAX_HTTP_CLIENT_REQUEST_SIZE`	maximum size in bytes of any http request sent to to the PGX server over the REST API.
`MAX_OFF_HEAP_SIZE`	maximum amount of off-heap memory PGX is allowed to allocate in megabytes, before an OutOfMemoryError will be thrown.
`MAX_ON_HEAP_MEMORY_USAGE_RATIO`	maximum ratio of on-heap memory that PGX is allowed to use, between 0 and 1.
`MAX_QUEUE_SIZE_PER_SESSION`	the maximum number of pending tasks allowed to be in the queue, per session.
`MAX_SNAPSHOT_COUNT`	Number of snapshots that may be loaded in the engine at the same time.
`MAXIMUM_ATTAINABLE_MEMORY`	The maximum memory that can ever be made available to this PGX.D cluster.
`MAXIMUM_COMMAND_BUFFERS_POSTED`	The max number of posted buffers in an MQL channel for incoming command messages from all remotes.
`MAXIMUM_DATA_BUFFERS_POSTED`	The max number of large buffers posted in an MQL channel for incoming data messages from all remotes.
`MAXIMUM_RECEIVED_MESSAGES_BUFFER`	The max size of per remote received message queue.
`MAXIMUM_SEND_BUFFERS_IN_FLIGHT`	The max number of in-flight messages can be sent globally at the same time.
`MEMORY_ALLOCATOR`	which memory allocator to use
`MEMORY_CLEANUP_INTERVAL`	memory cleanup tick in seconds
`MIN_ARRAY_COMPACTION_THRESHOLD`	[only relevant for graphs optimized for updates] minimum value that can be used for the array_compaction_threshold value in graph configuration.
`MIN_FETCH_INTERVAL_SEC`	(only relevant if the graph format supports delta updates) for delta-refresh, the lowest interval at which a graph source is queried for changes.
`MIN_UPDATE_INTERVAL_SEC`	for auto-refresh, the lowest interval after which a new snapshot is created, either by reloading the entire graph or if the format supports delta-updates, out of the cached changes (only relevant if the format supports delta updates).
`MS_BFS_FRONTIER_TYPE_STRATEGY`	the type strategy to use for MS-BFS frontiers
`NETWORK_CREDITS`	The number of network credits will be provided to MQL (per MQL remote queue).
`NEW_FOLLOWER_CONNECTION_TIMEOUT_SECS`	Timeout in seconds for existing PGX.D processes to wait for the new follower to join the cluster in elastic scenarios.
`NUM_SPIN_LOCKS`	how many spin locks each generated app will create at instantiation.
`OBFUSCATE_LOG`	If set to `true` and if `log_sensitive_data` is disabled (by default in release mode), the engine will irreversibly hash any remaining parameters of the log messages.
`ON_HOLD_JOB_TIMEOUT_SECS`	Timeout in seconds to keep the job waiting in case it is put on hold due to lack of memory resources.
`PARALLELISM`	number of worker threads to be used in thread pool.
`PARTITIONING_SHUFFLE_VERTICES`	If set to `true`, the vertices of the graph will be randomly shuffled among machines before partitioning.
`PARTITIONING_STRATEGY`	Partitioning strategy of the vertices of the graph.
`PATTERN_MATCHING_SUPERNODE_CACHE_THRESHOLD`	minimum number of a node's neighbor to be a supernode.
`PERMISSION_CHECKS_INTERVAL`	interval in seconds to perform permission checks on source graphs
`PGQL_MAXIMUM_NUM_BUFFERS`	The max number of large buffers used by the PGQL engine per query.
`PGX_REALM`	configuration parameters for the realm
`PGX_SERVER_BASE_URL`	should be used when deploying pgx server behind a load balancer to make clients before 21.3 backward compatible, the value should be set to the load balancer address
`POOLING_FACTOR`	[only relevant if `string_pooling_strategy` is `on_heap`] this value prevents the string pool to grow as big as the property size which could render the pooling ineffective
`PRELOAD_GRAPHS`	list of graph configs to be registered at start-up.
`PROC_ID`	Internal unique machine identifier in the cluster.
`RANDOM_GENERATOR_STRATEGY`	method of generating random numbers in pgx
`RANDOM_SEED`	[relevant for `deterministic` random number generator only] seed for the deterministic random number generator used in pgx.
`READINESS_MEMORY_USAGE_RATIO`	memory limit ratio that should be considered to detect if PGX server is ready, used by isReady API, default value is 1.0
`RELEASE_MEMORY_THRESHOLD`	threshold percentage of used memory after which the engine starts freeing un-used graphs.
`RESOURCE_MONITOR`	Frequency at which to send resource statistics to the debug server, in ms.
`REVISIT_THRESHOLD`	maximum number of matched results from a node to be cached
`RUNNING_MEMORY_USAGE_RATIO`	memory limit ratio that should be considered to detect if PGX server is running, used by isRunning API default value is 1.0
`SCHEDULER`	which scheduler to use.
`SESSION_IDLE_TIMEOUT_SECS`	timeout of idling sessions in seconds.
`SESSION_TASK_TIMEOUT_SECS`	timeout to interrupt long-running tasks submitted by sessions (algorithms, I/O tasks) in seconds.
`SMALL_TASK_LENGTH`	task length if total amount of work is small than default task length (only relevant for task-stealing strategies)
`STRICT_MODE`	if `true`, exceptions are thrown and logged with `ERROR` level whenever engine encounters configuration problems, such as invalid keys, mismatches and other potential errors.
`STRING_POOLING_STRATEGY`	which string pooling strategy to use
`SYSTEM_IDLE_DELAY_BEFORE_IDLING_MSECS`	When the system is idle for longer than `system_idle_delay_before_idling_msecs`, start placing active background threads to sleep to reduce CPU usage and power consumption.
`SYSTEM_IDLE_SLEEP_INCREMENT_INTERVAL_MSECS`	Idling will start with `system_idle_sleep_increment_msecs` sleep duration and will increment this much every `system_idle_sleep_increment_interval_msecs` to a maximum sleep of `system_idle_sleep_max_msecs`.
`SYSTEM_IDLE_SLEEP_INCREMENT_MSECS`	Idling will start with `system_idle_sleep_increment_msecs` sleep duration and will increment this much every `system_idle_sleep_increment_interval_msecs` to a maximum sleep of `system_idle_sleep_max_msecs`.
`SYSTEM_IDLE_SLEEP_MAX_MSECS`	Idling will start with `system_idle_sleep_increment_msecs` sleep duration and will increment this much every `system_idle_sleep_increment_interval_msecs` to a maximum sleep of `system_idle_sleep_max_msecs`.
`TASK_LENGTH`	default task length (only relevant for task-stealing strategies).
`TMP_DIR`	Use this path as temporary directory to store compilation artifacts and other temporary data.
`UDF_CONFIG_DIRECTORY`	directory path containing udf config files
`USE_DEDICATED_POLLER_THREADS`	If `true`, the engine will use dedicated RTS poller threads that will always be scheduled, whereas if set to code>false, IO threads will be used and will share RTS slots with other worker threads.
`USE_INDEX_FOR_REACHABILITY_QUERIES`	create index for reachability queries
`USE_INFINIBAND`	If set to `true`, an InfiniBand network interface will be used.
`USE_MEMORY_MAPPER_FOR_READING_PGB`	if `true`, use memory mapped files for reading graphs in PGB format if possible; `false` always use s stream based implementation
`USE_MEMORY_MAPPER_FOR_STORING_PGB`	if `true`, use memory mapped files for storing in PGB format if possible; if `false` always use a stream based implementation

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.Object`	`getDefaultVal()`	Gets the default value of this field.
`java.util.List<java.lang.String>`	`getKeyAliases()`	Gets the key aliases of this field which are also recognized during parsing.
`java.util.List<java.lang.String>`	`getSingletonListKeyAliases()`	Gets the key aliases of this field which contain single values for lists and are also recognized during parsing.
`java.lang.Class<?>`	`getType()`	Gets the type of this field.
`boolean`	`isArray()`	Checks if this field is an array.
`boolean`	`isHidden()`	Checks if this field should be hidden.
`boolean`	`isPath()`	Checks if this field is a path.
`boolean`	`isRequired()`	Checks if this field is required.
`boolean`	`isSensitive()`	Checks if this field holds a sensitive data.
`java.lang.String`	`toKey()`	Get the key of this field, which is how this field is represented in serialized form.
`java.lang.String`	`toString()`
`static PgxConfig.Field`	`valueOf(java.lang.String name)`	Returns the enum constant of this type with the specified name.
`static PgxConfig.Field[]`	`values()`	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
compareTo, equals, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface oracle.pgx.config.ConfigField
isEnum, isPrimitive

- Enum Constant Detail
  - ENABLE_GRAPH_LOADING_CACHE
```
public static final PgxConfig.Field ENABLE_GRAPH_LOADING_CACHE
```
    if true, activate the graph loading cache that will accelerate loading of graphs that were previously loaded (can only be disabled in embedded mode)
  - BASIC_SCHEDULER_CONFIG
```
public static final PgxConfig.Field BASIC_SCHEDULER_CONFIG
```
    configuration parameters for the fork join pool backend
  - ENTERPRISE_SCHEDULER_CONFIG
```
public static final PgxConfig.Field ENTERPRISE_SCHEDULER_CONFIG
```
    configuration parameters for the enterprise scheduler
  - MIN_FETCH_INTERVAL_SEC
```
public static final PgxConfig.Field MIN_FETCH_INTERVAL_SEC
```
    (only relevant if the graph format supports delta updates) for delta-refresh, the lowest interval at which a graph source is queried for changes. You can tune this value to prevent PGX from hanging due to too frequent graph delta-refreshing.
  - MIN_UPDATE_INTERVAL_SEC
```
public static final PgxConfig.Field MIN_UPDATE_INTERVAL_SEC
```
    for auto-refresh, the lowest interval after which a new snapshot is created, either by reloading the entire graph or if the format supports delta-updates, out of the cached changes (only relevant if the format supports delta updates). You can tune this value to prevent PGX from hanging due to too frequent graph auto-refreshing.
  - IN_PLACE_UPDATE_CONSISTENCY_MODEL
```
public static final PgxConfig.Field IN_PLACE_UPDATE_CONSISTENCY_MODEL
```
    Consistency model used when in-place updates occur. Only relevant if in-place updates are enabled. Currently updates are only applied in place if the updates are not structural (Only modifies properties). Two models are currently implemented, one only delays new tasks when an update occurs, the other also running tasks.
  - MIN_ARRAY_COMPACTION_THRESHOLD
```
public static final PgxConfig.Field MIN_ARRAY_COMPACTION_THRESHOLD
```
    [only relevant for graphs optimized for updates] minimum value that can be used for the array_compaction_threshold value in graph configuration. If a graph configuration attempts to use a value lower than the one specified by min_array_compaction_threshold, it will use min_array_compaction_threshold instead
  - MAX_SNAPSHOT_COUNT
```
public static final PgxConfig.Field MAX_SNAPSHOT_COUNT
```
    Number of snapshots that may be loaded in the engine at the same time. New snapshots can be created via auto or forced update. If the number of snapshots of a graph reaches this threshold, no more auto-updates will be performed and a forced-updated will result in an exception until one or more snapshots are removed from memory. A value of zero indicates to support an unlimited amount of snapshots.
  - JAVA_HOME_DIR
```
public static final PgxConfig.Field JAVA_HOME_DIR
```
    The path to Java's home directory. If set to <system-java-home-dir>, use the java.home system property.
  - ENABLE_GM_COMPILER
```
public static final PgxConfig.Field ENABLE_GM_COMPILER
```
    if true, enable dynamic compilation of Green-Marl code during runtime
  - GRAPH_ALGORITHM_LANGUAGE
```
public static final PgxConfig.Field GRAPH_ALGORITHM_LANGUAGE
```
    Frontend compiler to use.
  - ALLOW_USER_AUTO_REFRESH
```
public static final PgxConfig.Field ALLOW_USER_AUTO_REFRESH
```
    if true users may enable auto refresh for graphs they load. If false only graphs mentioned in preload_graphs can have auto refresh enabled
  - IGNORE_INCOMPATIBLE_BACKEND_OPERATIONS
```
public static final PgxConfig.Field IGNORE_INCOMPATIBLE_BACKEND_OPERATIONS
```
    if true only log when encountering incompatible operations and configuration values in RTS or FJ pool. If false throw exceptions
  - ALLOW_OVERRIDE_SCHEDULING_INFORMATION
```
public static final PgxConfig.Field ALLOW_OVERRIDE_SCHEDULING_INFORMATION
```
    if true allow all users to override scheduling information like task weight, task priority and number of threads
  - UDF_CONFIG_DIRECTORY
```
public static final PgxConfig.Field UDF_CONFIG_DIRECTORY
```
    directory path containing udf config files
  - HOSTNAMES
```
public static final PgxConfig.Field HOSTNAMES
```
    A list of names or IP addresses of hosts which should be involved in initial bootstrapping of a PGX.D cluster. The first host specified in the list will become the leader host. This parameter should not be set when joining an existing cluster.
  - EXISTING_HOSTNAMES
```
public static final PgxConfig.Field EXISTING_HOSTNAMES
```
    A list of names or IP addresses of hosts that are already part of an existing PGX.D cluster. The new follower machine uses this list to join the cluster. This parameter should not be set when initially bootstrapping a cluster.
  - EXECUTABLE_PATH
```
public static final PgxConfig.Field EXECUTABLE_PATH
```
    Path to the PGX.D executable.
  - BUILTINS_PATH
```
public static final PgxConfig.Field BUILTINS_PATH
```
    Path to the builtin algorithms directory.
  - LOG_CONFIGURE
```
public static final PgxConfig.Field LOG_CONFIGURE
```
    Path to a log configuration in Log4j (version 1) syntax. Contents in the file only affects a PGX.D backend. Note: This parameter is set automatically by `start-server.sh`, do not change it.
  - COMMON_LOG_CONFIGURE
```
public static final PgxConfig.Field COMMON_LOG_CONFIGURE
```
    Path to a log configuration in Logback syntax. Contents in the file only affects PGX.D backend components shared with PGX.SM via JNI. Note: This parameter is set automatically by `start-server.sh`, do not change it.
  - LOG_STD_REDIRECT
```
public static final PgxConfig.Field LOG_STD_REDIRECT
```
    Path to a log file into which the standard output streams (stdout, stderr) of PGX.D backend should be redirected. No redirection happens when the path is null.
  - OBFUSCATE_LOG
```
public static final PgxConfig.Field OBFUSCATE_LOG
```
    If set to true and if log_sensitive_data is disabled (by default in release mode), the engine will irreversibly hash any remaining parameters of the log messages.
  - MAXIMUM_COMMAND_BUFFERS_POSTED
```
public static final PgxConfig.Field MAXIMUM_COMMAND_BUFFERS_POSTED
```
    The max number of posted buffers in an MQL channel for incoming command messages from all remotes.
  - MAXIMUM_RECEIVED_MESSAGES_BUFFER
```
public static final PgxConfig.Field MAXIMUM_RECEIVED_MESSAGES_BUFFER
```
    The max size of per remote received message queue.
  - MAXIMUM_SEND_BUFFERS_IN_FLIGHT
```
public static final PgxConfig.Field MAXIMUM_SEND_BUFFERS_IN_FLIGHT
```
    The max number of in-flight messages can be sent globally at the same time. PGX.D can send maximum_send_buffers_in_flight / (# of remote hosts - 1) messages per remote at maximum.
  - MAXIMUM_DATA_BUFFERS_POSTED
```
public static final PgxConfig.Field MAXIMUM_DATA_BUFFERS_POSTED
```
    The max number of large buffers posted in an MQL channel for incoming data messages from all remotes.
  - NETWORK_CREDITS
```
public static final PgxConfig.Field NETWORK_CREDITS
```
    The number of network credits will be provided to MQL (per MQL remote queue). Larger value, more message sent at the same time by MQL.
  - NEW_FOLLOWER_CONNECTION_TIMEOUT_SECS
```
public static final PgxConfig.Field NEW_FOLLOWER_CONNECTION_TIMEOUT_SECS
```
    Timeout in seconds for existing PGX.D processes to wait for the new follower to join the cluster in elastic scenarios. Unless the new follower does the handshake with existing processes within the timeout, the joining operation is considered failed by the existing PGX.D processes.
  - PGQL_MAXIMUM_NUM_BUFFERS
```
public static final PgxConfig.Field PGQL_MAXIMUM_NUM_BUFFERS
```
    The max number of large buffers used by the PGQL engine per query. This value limits the memory used per machine for intermediate results during pattern matching to pgql_maximum_num_buffers * large_buf_size_kb.
  - ON_HOLD_JOB_TIMEOUT_SECS
```
public static final PgxConfig.Field ON_HOLD_JOB_TIMEOUT_SECS
```
    Timeout in seconds to keep the job waiting in case it is put on hold due to lack of memory resources. Unless additional followers join the cluster within the timeout or the required memory becomes free, the job will get cancelled. In case multiple followers are necessary to cover the required memory of the job, the timeout will be internally reset whenever a new follower joins.
  - ENGINE_CONNECTION_TIMEOUT_SECS
```
public static final PgxConfig.Field ENGINE_CONNECTION_TIMEOUT_SECS
```
    Timeout in seconds to setup the initial connections among PGX.D processes. Should be lower than liveness_check_interval_secs to avoid false negative liveness detection during system startup. The time needed to establish connections is proportional to the cluster size, so very large PGX.D clusters might need to increase this parameter.
  - MAXIMUM_ATTAINABLE_MEMORY
```
public static final PgxConfig.Field MAXIMUM_ATTAINABLE_MEMORY
```
    The maximum memory that can ever be made available to this PGX.D cluster. The value is used by PGX.D to identify whether it should elastically expand when faced with memory pressure, or whether it should cancel the command that exceeded this value altogether. This should be configured to be equal to sum of memory of all machines in the machine pool available for cluster growth. The invariant it sets is that there will never be more memory available to the PGX.D cluster than this value. The value can also be changed at runtime. If set to 0 PGX.D assumes elasticity is not enabled. Allowed values can be specified with memory units (e.g., 1m -> 1 megabyte, 1g -> 1 gigabyte, 1t -> 1 terabyte).
  - LIVENESS_CHECK_DELAY_SECS
```
public static final PgxConfig.Field LIVENESS_CHECK_DELAY_SECS
```
    Liveness check interval, i.e., how often to check that the PGX.D server is alive and that it can accept and execute commands. Should be larger than engine_connection_timeout_secs to avoid false negative liveness detection during system startup. Should be meaningfully larger than (((system_idle_sleep_max_msecs / system_idle_sleep_increment_msecs) * system_idle_sleep_increment_interval_msecs) + system_idle_delay_before_idling_msecs) to avoid preventing system idleness.
  - LIVENESS_CHECK_TIMEOUT_SECS
```
public static final PgxConfig.Field LIVENESS_CHECK_TIMEOUT_SECS
```
    Fails liveness check task if it cannot complete the liveness task in the period of time. Should be lower than liveness_check_interval_secs. Setting this parameter too low will cause false negative liveness detection.
  - SYSTEM_IDLE_DELAY_BEFORE_IDLING_MSECS
```
public static final PgxConfig.Field SYSTEM_IDLE_DELAY_BEFORE_IDLING_MSECS
```
    When the system is idle for longer than `system_idle_delay_before_idling_msecs`, start placing active background threads to sleep to reduce CPU usage and power consumption. Should be adjusted with respect to liveness_check_interval_secs, otherwise liveness checks will prevent system to ever go idle.
  - SYSTEM_IDLE_SLEEP_INCREMENT_MSECS
```
public static final PgxConfig.Field SYSTEM_IDLE_SLEEP_INCREMENT_MSECS
```
    Idling will start with system_idle_sleep_increment_msecs sleep duration and will increment this much every system_idle_sleep_increment_interval_msecs to a maximum sleep of system_idle_sleep_max_msecs. Should be adjusted with respect to liveness_check_interval_secs, otherwise liveness checks will prevent system to ever go idle.
  - SYSTEM_IDLE_SLEEP_INCREMENT_INTERVAL_MSECS
```
public static final PgxConfig.Field SYSTEM_IDLE_SLEEP_INCREMENT_INTERVAL_MSECS
```
    Idling will start with system_idle_sleep_increment_msecs sleep duration and will increment this much every system_idle_sleep_increment_interval_msecs to a maximum sleep of system_idle_sleep_max_msecs. Should be adjusted with respect to liveness_check_interval_secs, otherwise liveness checks will prevent system to ever go idle.
  - SYSTEM_IDLE_SLEEP_MAX_MSECS
```
public static final PgxConfig.Field SYSTEM_IDLE_SLEEP_MAX_MSECS
```
    Idling will start with system_idle_sleep_increment_msecs sleep duration and will increment this much every system_idle_sleep_increment_interval_msecs to a maximum sleep of system_idle_sleep_max_msecs. Determines the largest latency to detect activity in case the system is idle. If set too low, system will not save much resources during idleness. Should be adjusted with respect to liveness_check_interval_secs, otherwise liveness checks will prevent system to ever go idle.
  - JAVA_CLASS_PATH
```
public static final PgxConfig.Field JAVA_CLASS_PATH
```
    Path to required java libraries.
  - USE_INFINIBAND
```
public static final PgxConfig.Field USE_INFINIBAND
```
    If set to true, an InfiniBand network interface will be used. Must be set to false on systems that do not support InfiniBand.
  - IF_INFINIBAND
```
public static final PgxConfig.Field IF_INFINIBAND
```
    InfiniBand network interface, used to initialize the network transport layer when using InfiniBand.
  - IF_ETHERNET
```
public static final PgxConfig.Field IF_ETHERNET
```
    Ethernet network interface, used to initialize the network transport layer when using Ethernet.
  - LARGE_BUF_COUNT
```
public static final PgxConfig.Field LARGE_BUF_COUNT
```
    Number of large buffers populated in the pool.
  - LARGE_BUF_SIZE_KB
```
public static final PgxConfig.Field LARGE_BUF_SIZE_KB
```
    Size in kB of the large buffers.
  - PARTITIONING_SHUFFLE_VERTICES
```
public static final PgxConfig.Field PARTITIONING_SHUFFLE_VERTICES
```
    If set to true, the vertices of the graph will be randomly shuffled among machines before partitioning. If the data source does not contain enough randomness, this could be beneficial for query and analytics performance on graphs with many properties, labels or data providers. Shuffling can however increase the time necessary to load the graph.
  - PARTITIONING_STRATEGY
```
public static final PgxConfig.Field PARTITIONING_STRATEGY
```
    Partitioning strategy of the vertices of the graph. Valid values are 'out' (the vertices will be attributed to each machine so that every machine has the same total number of outgoing edges), 'in' (similar, but for incoming edges) and 'out_in' (same number of outgoing plus incoming edges).
  - PROC_ID
```
public static final PgxConfig.Field PROC_ID
```
    Internal unique machine identifier in the cluster.
  - RESOURCE_MONITOR
```
public static final PgxConfig.Field RESOURCE_MONITOR
```
    Frequency at which to send resource statistics to the debug server, in ms.
  - DEBUG_SERVER
```
public static final PgxConfig.Field DEBUG_SERVER
```
    Hostname of the debug server.
  - INSTANCE_NAME
```
public static final PgxConfig.Field INSTANCE_NAME
```
    Instance name sent as label to debug server.
  - ENABLE_ENGINE_TLS
```
public static final PgxConfig.Field ENABLE_ENGINE_TLS
```
    If true, the engine enables transport layer security (TLS) for connections between engine processes.
  - ENGINE_TLS_KEYSTORE
```
public static final PgxConfig.Field ENGINE_TLS_KEYSTORE
```
    Path to the PKCS12 keystore to be used by the engine for securing mutual TLS connections between engine processes. The keystore must contain exactly one pair of private key and public certificate for the engine. If the certificate is not self-signed, the keystore should also contain the intermediate chain of CA certificates used for signing the engine public certificate.
  - ENGINE_TLS_TRUSTSTORE
```
public static final PgxConfig.Field ENGINE_TLS_TRUSTSTORE
```
    Path to the PEM truststore to be used by the engine for securing mutual TLS connections between engine processes. The truststore must contain top-level CA certificates used for signing the content of the keystore.
  - ENGINE_TLS_CIPHER
```
public static final PgxConfig.Field ENGINE_TLS_CIPHER
```
    Cipher suite name (in OpenSSL syntax) to be used by the engine for securing TLS connections.
  - ENGINE_TLS_VERIFY_HOSTNAME
```
public static final PgxConfig.Field ENGINE_TLS_VERIFY_HOSTNAME
```
    If true, the engine will verify that the hostname contained in the peer's certificate matches the hostname of the peer. Note that this parameter is completely independent from engine_tls_expected_dn: using none, only one of them or both of them at the same time is allowed.
  - ENGINE_TLS_EXPECTED_DN
```
public static final PgxConfig.Field ENGINE_TLS_EXPECTED_DN
```
    If non empty, the engine will verify that the peer's certificate's Subject Distinguished Name matches exactly the given string. The format of this string must match the one given to the `openssl req` command when creating the certificate, without whitespaces between the equal signs. For instance, the following should be used for an organization in France called My Company with example.com as a hostname: /C=FR/O=My Company/CN=example.com. Note that this parameter is completely independent from engine_tls_verify_hostname: using none, only one of them or both of them at the same time is allowed.
  - BACKEND_WRAPPER
```
public static final PgxConfig.Field BACKEND_WRAPPER
```
    Only for internal use.
  - HANDSHAKE_PORT
```
public static final PgxConfig.Field HANDSHAKE_PORT
```
    a TCP port which will be used for handshaking of distributed backend processes.
  - USE_DEDICATED_POLLER_THREADS
```
public static final PgxConfig.Field USE_DEDICATED_POLLER_THREADS
```
    If true, the engine will use dedicated RTS poller threads that will always be scheduled, whereas if set to code>false, IO threads will be used and will share RTS slots with other worker threads.
  - ENABLE_CSRF_TOKEN_CHECKS
```
public static final PgxConfig.Field ENABLE_CSRF_TOKEN_CHECKS
```
    if true, the PGX webapp will verify CSRF token cookie and request parameters sent by the client exist and match. This is to prevent CSRF attacks.
  - TMP_DIR
```
public static final PgxConfig.Field TMP_DIR
```
    Use this path as temporary directory to store compilation artifacts and other temporary data. If set to <system-tmp-dir>, use standard tmp directory of underlying system (/tmp on Linux)
  - ALLOWED_REMOTE_LOADING_LOCATIONS
```
public static final PgxConfig.Field ALLOWED_REMOTE_LOADING_LOCATIONS
```
    (This option may reduce security, use it only if you know what you are doing!) Allow loading graphs into the PGX engine from remote locations. If empty, as by default, no remote location is allowed. Any of the following locations can be listed: "https", "ftps", "hdfs" (deprecated) (all without colon ":"). Alternatively, "*" can be used to enable all locations at once; no other value is allowed with "*". Note that pre-loaded graphs are loaded from any location, regardless of the value of this setting
  - INIT_PGQL_ON_STARTUP
```
public static final PgxConfig.Field INIT_PGQL_ON_STARTUP
```
    if true PGQL is directly initialized on start-up of PGX. Otherwise, it is initialized during the first use of PGQL.
  - MAX_HTTP_CLIENT_REQUEST_SIZE
```
public static final PgxConfig.Field MAX_HTTP_CLIENT_REQUEST_SIZE
```
    maximum size in bytes of any http request sent to to the PGX server over the REST API. Setting it to -1 allows requests of any size.
  - PGX_REALM
```
public static final PgxConfig.Field PGX_REALM
```
    configuration parameters for the realm
  - FILE_LOCATIONS
```
public static final PgxConfig.Field FILE_LOCATIONS
```
    the file-locations that can be used in the authorization-config
  - AUTHORIZATION_SESSION_CREATE_ALLOW_ALL
```
public static final PgxConfig.Field AUTHORIZATION_SESSION_CREATE_ALLOW_ALL
```
    if true allow all users to create a PGX session regardless of permissions granted to them
  - AUTHORIZATION
```
public static final PgxConfig.Field AUTHORIZATION
```
    mapping of users and roles to resources and permissions for authorization
  - ENABLE_MEMORY_LIMITS_CHECKS
```
public static final PgxConfig.Field ENABLE_MEMORY_LIMITS_CHECKS
```
    if true, PGX will enforce the configured memory limits
  - DATA_MEMORY_LIMITS
```
public static final PgxConfig.Field DATA_MEMORY_LIMITS
```
    memory limits configuration parameters
  - ENABLE_SHUTDOWN_CLEANUP_HOOK
```
public static final PgxConfig.Field ENABLE_SHUTDOWN_CLEANUP_HOOK
```
    if true PGX will add a JVM shutdown hook that will automatically shutdown PGX at JVM shutdown. Notice: Having the shutdown hook deactivated and not shutting down PGX explicitly may result in pollution of your temp directory.
  - SESSION_IDLE_TIMEOUT_SECS
```
public static final PgxConfig.Field SESSION_IDLE_TIMEOUT_SECS
```
    timeout of idling sessions in seconds. Set to zero for infinity/no timeout
  - SESSION_TASK_TIMEOUT_SECS
```
public static final PgxConfig.Field SESSION_TASK_TIMEOUT_SECS
```
    timeout to interrupt long-running tasks submitted by sessions (algorithms, I/O tasks) in seconds. Set to zero for infinity/no timeout
  - ALLOW_IDLE_TIMEOUT_OVERWRITE
```
public static final PgxConfig.Field ALLOW_IDLE_TIMEOUT_OVERWRITE
```
    if true, sessions can overwrite default idle timeout
  - ALLOW_TASK_TIMEOUT_OVERWRITE
```
public static final PgxConfig.Field ALLOW_TASK_TIMEOUT_OVERWRITE
```
    if true, sessions can overwrite default task timeout
  - MAX_ACTIVE_SESSIONS
```
public static final PgxConfig.Field MAX_ACTIVE_SESSIONS
```
    the maximum number of sessions allowed to be active at a time
  - MAX_QUEUE_SIZE_PER_SESSION
```
public static final PgxConfig.Field MAX_QUEUE_SIZE_PER_SESSION
```
    the maximum number of pending tasks allowed to be in the queue, per session. If a session reaches the maximum, new incoming requests of that sesssion get rejected. A negative value means infinity / unlimited.
  - INTERVAL_TO_POLL_MAX
```
public static final PgxConfig.Field INTERVAL_TO_POLL_MAX
```
    Exponential backoff upper bound (in ms) to which -once reached, the job status polling interval is fixed
  - ADMIN_REQUEST_CACHE_TIMEOUT
```
public static final PgxConfig.Field ADMIN_REQUEST_CACHE_TIMEOUT
```
    after how many seconds admin request results get removed from the cache. Requests which are not done or not yet consumed are excluded from this timeout. Note: this is only relevant if PGX is deployed as a webapp.
  - LAUNCH_WATCHDOGS
```
public static final PgxConfig.Field LAUNCH_WATCHDOGS
```
    (for debugging) if true, additional watch-dog threads will be launched which monitor and log engine health stats
  - STRICT_MODE
```
public static final PgxConfig.Field STRICT_MODE
```
    if true, exceptions are thrown and logged with ERROR level whenever engine encounters configuration problems, such as invalid keys, mismatches and other potential errors. If false, engine logs problems with ERROR/WARN level (depending on severity) and makes best guesses / uses sensible defaults instead of throwing exceptions.
  - PRELOAD_GRAPHS
```
public static final PgxConfig.Field PRELOAD_GRAPHS
```
    list of graph configs to be registered at start-up. Each item includes path to a graph config, the name of the graph and whether it should be published.
  - MEMORY_CLEANUP_INTERVAL
```
public static final PgxConfig.Field MEMORY_CLEANUP_INTERVAL
```
    memory cleanup tick in seconds
  - RELEASE_MEMORY_THRESHOLD
```
public static final PgxConfig.Field RELEASE_MEMORY_THRESHOLD
```
    threshold percentage of used memory after which the engine starts freeing un-used graphs. Examples: A value of 0.0 means graphs get freed as soon as their reference count becomes zero. That is, all sessions which loaded that graph were destroyed/timed out. A value of 1.0 means graphs get never freed. Engine will throw OutOfMemoryErrors as soon as a graph is needed which doesn't fit in memory anymore. A value of 0.7 means the engine keeps all graphs in memory as long as total memory consumption is below 70% of total available memory, even if there is currently no session using them. Once the 70% are surpassed and another graph needs to get loaded, un-used graphs get freed until memory consumption is below 70% again.
  - READINESS_MEMORY_USAGE_RATIO
```
public static final PgxConfig.Field READINESS_MEMORY_USAGE_RATIO
```
    memory limit ratio that should be considered to detect if PGX server is ready, used by isReady API, default value is 1.0
  - RUNNING_MEMORY_USAGE_RATIO
```
public static final PgxConfig.Field RUNNING_MEMORY_USAGE_RATIO
```
    memory limit ratio that should be considered to detect if PGX server is running, used by isRunning API default value is 1.0
  - PGX_SERVER_BASE_URL
```
public static final PgxConfig.Field PGX_SERVER_BASE_URL
```
    should be used when deploying pgx server behind a load balancer to make clients before 21.3 backward compatible, the value should be set to the load balancer address
  - PERMISSION_CHECKS_INTERVAL
```
public static final PgxConfig.Field PERMISSION_CHECKS_INTERVAL
```
    interval in seconds to perform permission checks on source graphs
  - GRAPH_SHARING_OPTION
```
public static final PgxConfig.Field GRAPH_SHARING_OPTION
```
    control if a graph can be published and shared with other users
  - ENABLE_SNAPSHOT_PROPERTIES_PUBLISH_STATE_PROPAGATION
```
public static final PgxConfig.Field ENABLE_SNAPSHOT_PROPERTIES_PUBLISH_STATE_PROPAGATION
```
    if true, properties in a new snapshot will inherit the publishing state of properties in the parent snapshot
  - ENABLE_ML_ACCELERATORS
```
public static final PgxConfig.Field ENABLE_ML_ACCELERATORS
```
    if true, will utilize available ML accelerators to run machine learning trainings faster.
  - NUM_SPIN_LOCKS
```
public static final PgxConfig.Field NUM_SPIN_LOCKS
```
    how many spin locks each generated app will create at instantiation. Trade-off: small number implies less memory consumption. Big number implies faster execution (if algorithm uses spin locks)
  - EXPLICIT_SPIN_LOCKS
```
public static final PgxConfig.Field EXPLICIT_SPIN_LOCKS
```
    true means spin explicitly in a loop until lock becomes available. false means using JDK locks which rely on the JVM to decide whether to context switch or spin. Our experiments showed that setting this value to true results in better performance.
  - SCHEDULER
```
public static final PgxConfig.Field SCHEDULER
```
    which scheduler to use.
    basic_scheduler = use scheduler with basic features.
    enterprise_scheduler = use scheduler with advanced, enterprise features for running multiple tasks concurrently and increased performance.
    low_latency_scheduler = use scheduler that privileges latency of tasks over throughput or fairness across multiple sessions. The low_latency_scheduler is only available in embedded mode
  - TASK_LENGTH
```
public static final PgxConfig.Field TASK_LENGTH
```
    default task length (only relevant for task-stealing strategies). F/J pool documentation says this value should be between 100 and 10000. Trade-off: small number implies more fine-grained tasks are generated, higher stealing throughput. High number implies less memory consumption and GC activity
  - SMALL_TASK_LENGTH
```
public static final PgxConfig.Field SMALL_TASK_LENGTH
```
    task length if total amount of work is small than default task length (only relevant for task-stealing strategies)
  - MS_BFS_FRONTIER_TYPE_STRATEGY
```
public static final PgxConfig.Field MS_BFS_FRONTIER_TYPE_STRATEGY
```
    the type strategy to use for MS-BFS frontiers
  - BFS_THRESHOLD_SINGLE_THREADED
```
public static final PgxConfig.Field BFS_THRESHOLD_SINGLE_THREADED
```
    until what number of BFS traversal level items vertices are visited single-threaded
  - BFS_THRESHOLD_READ_BASED
```
public static final PgxConfig.Field BFS_THRESHOLD_READ_BASED
```
    threshold of BFS traversal level items above which to switch to read-based visiting strategy
  - BFS_ITERATE_QUE_TASK_SIZE
```
public static final PgxConfig.Field BFS_ITERATE_QUE_TASK_SIZE
```
    task size for BFS iterate QUE phase
  - BFS_THRESHOLD_PARENT_READ_BASED
```
public static final PgxConfig.Field BFS_THRESHOLD_PARENT_READ_BASED
```
    threshold of BFS traversal level items above which to switch to parent-read-based visiting strategy
  - DFS_THRESHOLD_LARGE
```
public static final PgxConfig.Field DFS_THRESHOLD_LARGE
```
    value that determines at which number of visited vertices the DFS implementation will switch to data-structures that are more optimized for larger numbers of vertices.
  - CNI_STOP_RECURSION_DEFAULT
```
public static final PgxConfig.Field CNI_STOP_RECURSION_DEFAULT
```
    default value used in the common neighbor iterator implementations, to indicate the minimum size where the binary search approach is applied.
  - CNI_SMALL_DEFAULT
```
public static final PgxConfig.Field CNI_SMALL_DEFAULT
```
    default value used in the common neighbor iterator implementations, to indicate below which threshold a subarray is considered small.
  - CNI_DIFF_FACTOR_DEFAULT
```
public static final PgxConfig.Field CNI_DIFF_FACTOR_DEFAULT
```
    default diff factor value used in the common neighbor iterator implementations.
  - LARGE_ARRAY_THRESHOLD
```
public static final PgxConfig.Field LARGE_ARRAY_THRESHOLD
```
    threshold when the size of an array is too big to use a normal Java array. This depends on the used JVM. (defaults to Integer.MAX_VALUE - 3)
  - MAX_OFF_HEAP_SIZE
```
public static final PgxConfig.Field MAX_OFF_HEAP_SIZE
```
    maximum amount of off-heap memory PGX is allowed to allocate in megabytes, before an OutOfMemoryError will be thrown. Note: this limit is not guaranteed to never be exceeded because of rounding and synchronization trade-offs. It only serves as threshold when PGX starts to reject new memory allocation requests.
  - MAX_ON_HEAP_MEMORY_USAGE_RATIO
```
public static final PgxConfig.Field MAX_ON_HEAP_MEMORY_USAGE_RATIO
```
    maximum ratio of on-heap memory that PGX is allowed to use, between 0 and 1.
  - CHARACTER_SET
```
public static final PgxConfig.Field CHARACTER_SET
```
    standard charset to use throughout PGX, UTF-8 will be used as default. Note: Some formats may not be compatible.
  - PARALLELISM
```
public static final PgxConfig.Field PARALLELISM
```
    number of worker threads to be used in thread pool. Note: if caller thread is part of another thread-pool, this value is ignored and parallelism of parent pool is used.
  - RANDOM_GENERATOR_STRATEGY
```
public static final PgxConfig.Field RANDOM_GENERATOR_STRATEGY
```
    method of generating random numbers in pgx
  - RANDOM_SEED
```
public static final PgxConfig.Field RANDOM_SEED
```
    [relevant for deterministic random number generator only] seed for the deterministic random number generator used in pgx. The default is -24466691093057031
  - PATTERN_MATCHING_SUPERNODE_CACHE_THRESHOLD
```
public static final PgxConfig.Field PATTERN_MATCHING_SUPERNODE_CACHE_THRESHOLD
```
    minimum number of a node's neighbor to be a supernode. This is for pattern matching engine.
  - USE_INDEX_FOR_REACHABILITY_QUERIES
```
public static final PgxConfig.Field USE_INDEX_FOR_REACHABILITY_QUERIES
```
    create index for reachability queries
  - REVISIT_THRESHOLD
```
public static final PgxConfig.Field REVISIT_THRESHOLD
```
    maximum number of matched results from a node to be cached
  - ENTERPRISE_SCHEDULER_FLAGS
```
public static final PgxConfig.Field ENTERPRISE_SCHEDULER_FLAGS
```
    [relevant for enterprise_scheduler] enterprise scheduler specific settings.
  - MEMORY_ALLOCATOR
```
public static final PgxConfig.Field MEMORY_ALLOCATOR
```
    which memory allocator to use
  - MAX_DISTINCT_STRINGS_PER_POOL
```
public static final PgxConfig.Field MAX_DISTINCT_STRINGS_PER_POOL
```
    [only relevant if string_pooling_strategy is indexed] amount of distinct strings per property after which to stop pooling. If the limit is reached an exception is thrown
  - STRING_POOLING_STRATEGY
```
public static final PgxConfig.Field STRING_POOLING_STRATEGY
```
    which string pooling strategy to use
  - USE_MEMORY_MAPPER_FOR_STORING_PGB
```
public static final PgxConfig.Field USE_MEMORY_MAPPER_FOR_STORING_PGB
```
    if true, use memory mapped files for storing in PGB format if possible; if false always use a stream based implementation
  - USE_MEMORY_MAPPER_FOR_READING_PGB
```
public static final PgxConfig.Field USE_MEMORY_MAPPER_FOR_READING_PGB
```
    if true, use memory mapped files for reading graphs in PGB format if possible; false always use s stream based implementation
  - POOLING_FACTOR
```
public static final PgxConfig.Field POOLING_FACTOR
```
    [only relevant if string_pooling_strategy is on_heap] this value prevents the string pool to grow as big as the property size which could render the pooling ineffective
  - GRAPH_VALIDATION_LEVEL
```
public static final PgxConfig.Field GRAPH_VALIDATION_LEVEL
```
    level of validation performed on newly loaded or created graphs
  - ALLOW_LAZY_LOADING_FOR_DATABASE_GRAPHS
```
public static final PgxConfig.Field ALLOW_LAZY_LOADING_FOR_DATABASE_GRAPHS
```
    if true, PGX will automatically load graphs from the database when they are first referenced in graph queries
- Method Detail
  - values
```
public static PgxConfig.Field[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
    for (PgxConfig.Field c : PgxConfig.Field.values()) System.out.println(c);
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static PgxConfig.Field valueOf(java.lang.String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
    
    java.lang.NullPointerException - if the argument is null
  - getKeyAliases
```
public java.util.List<java.lang.String> getKeyAliases()
```
    Description copied from interface: ConfigField
    
    Gets the key aliases of this field which are also recognized during parsing.
    
    Specified by:
    
    getKeyAliases in interface ConfigField
    
    Returns:
    
    the key aliases
  - getSingletonListKeyAliases
```
public java.util.List<java.lang.String> getSingletonListKeyAliases()
```
    Description copied from interface: ConfigField
    
    Gets the key aliases of this field which contain single values for lists and are also recognized during parsing.
    
    Specified by:
    
    getSingletonListKeyAliases in interface ConfigField
    
    Returns:
    
    the singleton list key aliases
  - getType
```
public java.lang.Class<?> getType()
```
    Description copied from interface: ConfigField
    
    Gets the type of this field.
    
    Specified by:
    
    getType in interface ConfigField
    
    Returns:
    
    the type
  - isRequired
```
public boolean isRequired()
```
    Description copied from interface: ConfigField
    
    Checks if this field is required.
    
    Specified by:
    
    isRequired in interface ConfigField
    
    Returns:
    
    true, if required
  - isArray
```
public boolean isArray()
```
    Description copied from interface: ConfigField
    
    Checks if this field is an array.
    
    Specified by:
    
    isArray in interface ConfigField
    
    Returns:
    
    true, if array
  - isPath
```
public boolean isPath()
```
    Description copied from interface: ConfigField
    
    Checks if this field is a path.
    
    Specified by:
    
    isPath in interface ConfigField
    
    Returns:
    
    true, if path
  - getDefaultVal
```
public java.lang.Object getDefaultVal()
```
    Description copied from interface: ConfigField
    
    Gets the default value of this field.
    
    Specified by:
    
    getDefaultVal in interface ConfigField
    
    Returns:
    
    the default value
  - toKey
```
public java.lang.String toKey()
```
    Description copied from interface: ConfigField
    
    Get the key of this field, which is how this field is represented in serialized form.
    
    Specified by:
    
    toKey in interface ConfigField
    
    Returns:
    
    the key.
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Enum<PgxConfig.Field>
  - isSensitive
```
public boolean isSensitive()
```
    Description copied from interface: ConfigField
    
    Checks if this field holds a sensitive data.
    
    Specified by:
    
    isSensitive in interface ConfigField
    
    Returns:
    
    true, if use for sensitive data
  - isHidden
```
public boolean isHidden()
```
    Description copied from interface: ConfigField
    
    Checks if this field should be hidden. Hidden fields are used to hid desired field from the user and only allow it for internal usage.
    
    Specified by:
    
    isHidden in interface ConfigField
    
    Returns:
    
    true if field should be hidden, false otherwise

Enum PgxConfig.Field

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Methods inherited from interface oracle.pgx.config.ConfigField

Enum Constant Detail

ENABLE_GRAPH_LOADING_CACHE

BASIC_SCHEDULER_CONFIG

ENTERPRISE_SCHEDULER_CONFIG

MIN_FETCH_INTERVAL_SEC

MIN_UPDATE_INTERVAL_SEC

IN_PLACE_UPDATE_CONSISTENCY_MODEL

MIN_ARRAY_COMPACTION_THRESHOLD

MAX_SNAPSHOT_COUNT

JAVA_HOME_DIR

ENABLE_GM_COMPILER

GRAPH_ALGORITHM_LANGUAGE

ALLOW_USER_AUTO_REFRESH

IGNORE_INCOMPATIBLE_BACKEND_OPERATIONS

ALLOW_OVERRIDE_SCHEDULING_INFORMATION

UDF_CONFIG_DIRECTORY

HOSTNAMES

EXISTING_HOSTNAMES

EXECUTABLE_PATH

BUILTINS_PATH

LOG_CONFIGURE

COMMON_LOG_CONFIGURE

LOG_STD_REDIRECT

OBFUSCATE_LOG

MAXIMUM_COMMAND_BUFFERS_POSTED

MAXIMUM_RECEIVED_MESSAGES_BUFFER

MAXIMUM_SEND_BUFFERS_IN_FLIGHT

MAXIMUM_DATA_BUFFERS_POSTED

NETWORK_CREDITS

NEW_FOLLOWER_CONNECTION_TIMEOUT_SECS

PGQL_MAXIMUM_NUM_BUFFERS

ON_HOLD_JOB_TIMEOUT_SECS

ENGINE_CONNECTION_TIMEOUT_SECS

MAXIMUM_ATTAINABLE_MEMORY

LIVENESS_CHECK_DELAY_SECS

LIVENESS_CHECK_TIMEOUT_SECS

SYSTEM_IDLE_DELAY_BEFORE_IDLING_MSECS

SYSTEM_IDLE_SLEEP_INCREMENT_MSECS

SYSTEM_IDLE_SLEEP_INCREMENT_INTERVAL_MSECS

SYSTEM_IDLE_SLEEP_MAX_MSECS

JAVA_CLASS_PATH

USE_INFINIBAND

IF_INFINIBAND

IF_ETHERNET

LARGE_BUF_COUNT

LARGE_BUF_SIZE_KB

PARTITIONING_SHUFFLE_VERTICES

PARTITIONING_STRATEGY

PROC_ID

RESOURCE_MONITOR

DEBUG_SERVER

INSTANCE_NAME

ENABLE_ENGINE_TLS

ENGINE_TLS_KEYSTORE

ENGINE_TLS_TRUSTSTORE

ENGINE_TLS_CIPHER

ENGINE_TLS_VERIFY_HOSTNAME

ENGINE_TLS_EXPECTED_DN

BACKEND_WRAPPER

HANDSHAKE_PORT

USE_DEDICATED_POLLER_THREADS

ENABLE_CSRF_TOKEN_CHECKS

TMP_DIR

ALLOWED_REMOTE_LOADING_LOCATIONS

INIT_PGQL_ON_STARTUP

MAX_HTTP_CLIENT_REQUEST_SIZE

PGX_REALM

FILE_LOCATIONS

AUTHORIZATION_SESSION_CREATE_ALLOW_ALL

AUTHORIZATION

ENABLE_MEMORY_LIMITS_CHECKS

DATA_MEMORY_LIMITS

ENABLE_SHUTDOWN_CLEANUP_HOOK

SESSION_IDLE_TIMEOUT_SECS