public final class ClusterProperty extends Object
Modifier and Type | Field and Description |
---|---|
static HazelcastProperty |
AGGREGATION_ACCUMULATION_PARALLEL_EVALUATION
Run aggregation accumulation for multiple entries in parallel.
|
static HazelcastProperty |
AUDIT_LOG_ENABLED |
static HazelcastProperty |
BACKPRESSURE_BACKOFF_TIMEOUT_MILLIS
Control the maximum timeout in millis to wait for an invocation space to be available.
|
static HazelcastProperty |
BACKPRESSURE_ENABLED
Using back pressure, you can prevent an overload of pending asynchronous backups.
|
static HazelcastProperty |
BACKPRESSURE_MAX_CONCURRENT_INVOCATIONS_PER_PARTITION
The maximum number of concurrent invocations per partition.
|
static HazelcastProperty |
BACKPRESSURE_SYNCWINDOW
Controls the frequency of a BackupAwareOperation getting its async backups converted to a sync backups.
|
static HazelcastProperty |
BIND_SPOOFING_CHECKS
Controls whether we apply more strict checks upon BIND requests towards a cluster member.
|
static HazelcastProperty |
CACHE_INVALIDATION_MESSAGE_BATCH_ENABLED
Defines cache invalidation event batch sending is enabled or not.
|
static HazelcastProperty |
CACHE_INVALIDATION_MESSAGE_BATCH_FREQUENCY_SECONDS
Defines the cache invalidation event batch sending frequency in seconds.
|
static HazelcastProperty |
CACHE_INVALIDATION_MESSAGE_BATCH_SIZE
Defines the maximum number of cache invalidation events to be drained and sent to the event listeners in a batch.
|
static HazelcastProperty |
CLIENT_CLEANUP_PERIOD
Time period to check if a client is still part of the cluster.
|
static HazelcastProperty |
CLIENT_CLEANUP_TIMEOUT
Timeout duration to decide if a client is still part of the cluster.
|
static HazelcastProperty |
CLIENT_ENGINE_BLOCKING_THREAD_COUNT
The number of threads that the client engine has available for processing requests that are blocking
(example: related to transactions)
When not set it is set as core-size * 20.
|
static HazelcastProperty |
CLIENT_ENGINE_QUERY_THREAD_COUNT
The number of threads that the client engine has available for processing requests that are related to transactions
When not set it is set as core-size.
|
static HazelcastProperty |
CLIENT_ENGINE_THREAD_COUNT
The number of threads that the client engine has available for processing requests that are not partition specific.
|
static HazelcastProperty |
CLIENT_HEARTBEAT_TIMEOUT_SECONDS |
static HazelcastProperty |
CLIENT_PROTOCOL_UNVERIFIED_MESSAGE_BYTES
Client protocol message size limit (in bytes) for unverified connections (i.e.
|
static HazelcastProperty |
CLUSTER_SHUTDOWN_TIMEOUT_SECONDS |
static HazelcastProperty |
CONCURRENT_WINDOW_MS
Property needed for concurrency detection so that write through can be done correctly.
|
static HazelcastProperty |
CONNECT_ALL_WAIT_SECONDS |
static HazelcastProperty |
CONNECTION_MONITOR_INTERVAL |
static HazelcastProperty |
CONNECTION_MONITOR_MAX_FAULTS |
static HazelcastProperty |
DISABLE_STALE_READ_ON_PARTITION_MIGRATION |
static HazelcastProperty |
DISCOVERY_SPI_ENABLED
Enables the Discovery SPI lookup
|
static HazelcastProperty |
DISCOVERY_SPI_PUBLIC_IP_ENABLED
Enables the Discovery Joiner to use public IP from DiscoveredNode.
|
static HazelcastProperty |
ENABLE_JMX |
static HazelcastProperty |
ENTERPRISE_LICENSE_KEY |
static HazelcastProperty |
EVENT_QUEUE_CAPACITY
The capacity of the
EventServiceImpl executor. |
static HazelcastProperty |
EVENT_QUEUE_TIMEOUT_MILLIS
The timeout for offering an event to the event executor for processing.
|
static HazelcastProperty |
EVENT_SYNC_TIMEOUT_MILLIS
To prevent overloading of the outbound connections, once in a while an event is made synchronous by wrapping it in a
fake operation and waiting for a fake response.
|
static HazelcastProperty |
EVENT_THREAD_COUNT
Number of threads for the
EventServiceImpl executor. |
static HazelcastProperty |
FAIL_ON_INDETERMINATE_OPERATION_STATE
When this configuration is enabled, if an operation has sync backups and acks are not received from backup replicas
in time, or the member which owns primary replica of the target partition leaves the cluster, then the invocation fails
with
IndeterminateOperationStateException . |
static HazelcastProperty |
GENERIC_OPERATION_THREAD_COUNT
The number of generic operation handler threads per member.
|
static HazelcastProperty |
GRACEFUL_SHUTDOWN_MAX_WAIT |
static HazelcastProperty |
HEALTH_MONITORING_DELAY_SECONDS |
static HazelcastProperty |
HEALTH_MONITORING_LEVEL |
static HazelcastProperty |
HEALTH_MONITORING_THRESHOLD_CPU_PERCENTAGE |
static HazelcastProperty |
HEALTH_MONITORING_THRESHOLD_MEMORY_PERCENTAGE |
static HazelcastProperty |
HEARTBEAT_FAILURE_DETECTOR_TYPE
Heartbeat failure detector type.
|
static HazelcastProperty |
HEARTBEAT_INTERVAL_SECONDS
The interval at which member heartbeat messages are sent
|
static HazelcastProperty |
HOT_RESTART_FREE_NATIVE_MEMORY_PERCENTAGE
XML and system property for setting the hot restart required free space.
|
static HazelcastProperty |
INDEX_COPY_BEHAVIOR
Type of Query Index result copying behavior.
|
static HazelcastProperty |
INIT_CLUSTER_VERSION
Override cluster version to use while node is not yet member of a cluster.
|
static HazelcastProperty |
INITIAL_MIN_CLUSTER_SIZE |
static HazelcastProperty |
INITIAL_WAIT_SECONDS |
static HazelcastProperty |
INVOCATION_MAX_RETRY_COUNT
Maximum number of retries for an invocation.
|
static HazelcastProperty |
INVOCATION_RETRY_PAUSE
Pause time between each retry cycle of an invocation in milliseconds.
|
static HazelcastProperty |
IO_BALANCER_INTERVAL_SECONDS
The interval in seconds between
IOBalancer
executions. |
static HazelcastProperty |
IO_INPUT_THREAD_COUNT
Controls the number of socket input threads.
|
static HazelcastProperty |
IO_OUTPUT_THREAD_COUNT
Controls the number of socket output threads.
|
static HazelcastProperty |
IO_THREAD_COUNT
The number of threads doing socket input and the number of threads doing socket output.
|
static HazelcastProperty |
IO_WRITE_THROUGH_ENABLED
Optimization that allows sending of packets over the network to be done on the calling thread if the
conditions are right.
|
static HazelcastProperty |
JCACHE_PROVIDER_TYPE
Forces the JCache provider, which can have values client or server, to force the provider type.
|
static HazelcastProperty |
JMX_UPDATE_INTERVAL_SECONDS |
static HazelcastProperty |
LOCK_MAX_LEASE_TIME_SECONDS |
static HazelcastProperty |
LOGGING_ENABLE_DETAILS
Controls whether cluster name, ip and version should be included in all log messages
|
static HazelcastProperty |
LOGGING_TYPE |
static HazelcastProperty |
MAP_EVICTION_BATCH_SIZE
Maximum number of IMap entries Hazelcast will evict during a
single eviction cycle.
|
static HazelcastProperty |
MAP_EXPIRY_DELAY_SECONDS
You can use MAP_EXPIRY_DELAY_SECONDS to deal with some possible
edge cases, such as using EntryProcessor.
|
static HazelcastProperty |
MAP_INVALIDATION_MESSAGE_BATCH_ENABLED
Defines Near Cache invalidation event batch sending is enabled or not.
|
static HazelcastProperty |
MAP_INVALIDATION_MESSAGE_BATCH_FREQUENCY_SECONDS
Defines the Near Cache invalidation event batch sending frequency in seconds.
|
static HazelcastProperty |
MAP_INVALIDATION_MESSAGE_BATCH_SIZE
Defines the maximum number of Near Cache invalidation events to be drained and sent to the event Near Cache in a batch.
|
static HazelcastProperty |
MAP_LOAD_CHUNK_SIZE
The maximum size of the key batch sent to the partition owners for value loading
and the maximum size of a key batch for which values are loaded in a single partition.
|
static HazelcastProperty |
MAP_REPLICA_SCHEDULED_TASK_DELAY_SECONDS |
static HazelcastProperty |
MAP_WRITE_BEHIND_QUEUE_CAPACITY
Setting this capacity is valid if you set
writeCoalescing to false
(see MapStoreConfig.setWriteCoalescing(boolean) ). |
static HazelcastProperty |
MASTERSHIP_CLAIM_TIMEOUT_SECONDS
The timeout which defines when master candidate gives up waiting for response to its mastership claim.
|
static HazelcastProperty |
MAX_JOIN_MERGE_TARGET_SECONDS |
static HazelcastProperty |
MAX_JOIN_SECONDS |
static HazelcastProperty |
MAX_NO_HEARTBEAT_SECONDS
The timeout which defines when a cluster member is removed because it has not sent any heartbeats.
|
static HazelcastProperty |
MAX_WAIT_SECONDS_BEFORE_JOIN |
static HazelcastProperty |
MC_EXECUTOR_THREAD_COUNT
The number of threads that the Management Center service has available for processing operations
sent from connected Management Center instance.
|
static HazelcastProperty |
MC_MAX_VISIBLE_SLOW_OPERATION_COUNT |
static HazelcastProperty |
MC_TRUSTED_INTERFACES
Deprecated.
This property is valid only for 4.0.z patch stream. Use proper typed configuration in Hazelcast 4.1+.
|
static HazelcastProperty |
MEMBER_LIST_PUBLISH_INTERVAL_SECONDS
The interval at which the master sends the member lists are sent to other non-master members
|
static HazelcastProperty |
MERGE_FIRST_RUN_DELAY_SECONDS
The delay until the first run of the split-brain handler.
|
static HazelcastProperty |
MERGE_NEXT_RUN_DELAY_SECONDS
The interval between invocations of the split-brain handler.
|
static HazelcastProperty |
METRICS_COLLECTION_FREQUENCY
Sets the metrics collection frequency in seconds.
|
static HazelcastProperty |
METRICS_DATASTRUCTURES
Enables/disables collecting metrics from the distributed data structures.
|
static HazelcastProperty |
METRICS_DEBUG
Enables collecting debug metrics.
|
static HazelcastProperty |
METRICS_ENABLED
Enables/disables metrics collection altogether.
|
static HazelcastProperty |
METRICS_JMX_ENABLED
Enables/disables exposing metrics on JMX.
|
static HazelcastProperty |
METRICS_MC_ENABLED
Enables/disables collecting metrics for Management Center.
|
static HazelcastProperty |
METRICS_MC_RETENTION
Sets the duration in seconds for which the collected metrics are retained
and Management Center can consume them.
|
static HazelcastProperty |
MOBY_NAMING_ENABLED
Defines whether Moby Names should be used for instance name generating when it is not provided by user.
|
static HazelcastProperty |
NETWORK_STATS_REFRESH_INTERVAL_SECONDS
The interval at which network stats (bytes sent and received) are re-calculated and published.
|
static HazelcastProperty |
OPERATION_BACKUP_TIMEOUT_MILLIS
If an operation has backups, this property specifies how long the invocation will wait for acks from the backup replicas.
|
static HazelcastProperty |
OPERATION_CALL_TIMEOUT_MILLIS |
static HazelcastProperty |
PARTITION_BACKUP_SYNC_INTERVAL |
static HazelcastProperty |
PARTITION_COUNT
Total number of partitions in the Hazelcast cluster.
|
static HazelcastProperty |
PARTITION_FRAGMENTED_MIGRATION_ENABLED |
static HazelcastProperty |
PARTITION_MAX_PARALLEL_REPLICATIONS |
static HazelcastProperty |
PARTITION_MIGRATION_INTERVAL
Time in seconds to sleep after a migration task.
|
static HazelcastProperty |
PARTITION_MIGRATION_TIMEOUT
Timeout in seconds for all migration operations.
|
static HazelcastProperty |
PARTITION_OPERATION_THREAD_COUNT
The number of partition operation handler threads per member.
|
static HazelcastProperty |
PARTITION_TABLE_SEND_INTERVAL |
static HazelcastProperty |
PARTITIONING_STRATEGY_CLASS |
static HazelcastProperty |
PHONE_HOME_ENABLED |
static HazelcastProperty |
PREFER_IPv4_STACK |
static HazelcastProperty |
PRIORITY_GENERIC_OPERATION_THREAD_COUNT
The number of priority generic operation handler threads per member.
|
static HazelcastProperty |
QUERY_MAX_LOCAL_PARTITION_LIMIT_FOR_PRE_CHECK
Maximum value of local partitions to trigger local pre-check for
Predicates.alwaysTrue() predicate query operations
on maps. |
static HazelcastProperty |
QUERY_OPTIMIZER_TYPE
Type of Query Optimizer.
|
static HazelcastProperty |
QUERY_PREDICATE_PARALLEL_EVALUATION
Run Query Evaluations for multiple partitions in parallel.
|
static HazelcastProperty |
QUERY_RESULT_SIZE_LIMIT
Result size limit for query operations on maps.
|
static HazelcastProperty |
RESPONSE_THREAD_COUNT
The number of threads that process responses.
|
static HazelcastProperty |
SEARCH_DYNAMIC_CONFIG_FIRST
By default, search for data structures config is performed within static configuration first:
Exact match in static config
Wildcard match in static config
Exact match in dynamic config
Wildcard match in dynamic config
Fallback to default
But sometimes it makes sense to perform search within dynamic configs first.
|
static HazelcastProperty |
SERIALIZATION_VERSION
Hazelcast serialization version.
|
static HazelcastProperty |
SHUTDOWNHOOK_ENABLED |
static HazelcastProperty |
SHUTDOWNHOOK_POLICY
Behaviour when JVM is about to exit while Hazelcast instance is still running.
|
static HazelcastProperty |
SLOW_OPERATION_DETECTOR_ENABLED
Enables or disables the
SlowOperationDetector . |
static HazelcastProperty |
SLOW_OPERATION_DETECTOR_LOG_PURGE_INTERVAL_SECONDS
Purge interval for slow operation logs.
|
static HazelcastProperty |
SLOW_OPERATION_DETECTOR_LOG_RETENTION_SECONDS
This value defines the retention time of invocations in slow operation logs.
|
static HazelcastProperty |
SLOW_OPERATION_DETECTOR_STACK_TRACE_LOGGING_ENABLED
Defines if the stacktraces of slow operations are logged in the log file.
|
static HazelcastProperty |
SLOW_OPERATION_DETECTOR_THRESHOLD_MILLIS
Defines a threshold above which a running operation in
OperationService is considered to be slow. |
static HazelcastProperty |
SOCKET_BIND_ANY |
static HazelcastProperty |
SOCKET_BUFFER_DIRECT
If the bytebuffers used in the socket should be a direct bytebuffer (true) or a regular bytebuffer (false).
|
static HazelcastProperty |
SOCKET_CLIENT_BIND |
static HazelcastProperty |
SOCKET_CLIENT_BIND_ANY |
static HazelcastProperty |
SOCKET_CLIENT_BUFFER_DIRECT |
static HazelcastProperty |
SOCKET_CLIENT_RECEIVE_BUFFER_SIZE
Overrides receive buffer size for connections opened by clients.
|
static HazelcastProperty |
SOCKET_CLIENT_SEND_BUFFER_SIZE
Overrides send buffer size for connections opened by clients.
|
static HazelcastProperty |
SOCKET_CONNECT_TIMEOUT_SECONDS |
static HazelcastProperty |
SOCKET_KEEP_ALIVE |
static HazelcastProperty |
SOCKET_LINGER_SECONDS |
static HazelcastProperty |
SOCKET_NO_DELAY |
static HazelcastProperty |
SOCKET_RECEIVE_BUFFER_SIZE |
static HazelcastProperty |
SOCKET_SEND_BUFFER_SIZE |
static HazelcastProperty |
SOCKET_SERVER_BIND_ANY |
static HazelcastProperty |
TCP_JOIN_PORT_TRY_COUNT
The number of incremental ports, starting with port number defined in network configuration,
that will be used to connect to a host which is defined without a port in the TCP-IP member list
while a node is searching for a cluster.
|
static HazelcastProperty |
WAIT_SECONDS_BEFORE_JOIN |
static HazelcastProperty |
WAN_CONSUMER_ACK_DELAY_BACKOFF_INIT_MS
Defines the initial backoff delay for the Enterprise WAN
implementation's consumer.
|
static HazelcastProperty |
WAN_CONSUMER_ACK_DELAY_BACKOFF_MAX_MS
Defines the maximum backoff delay for the Enterprise WAN
implementation's consumer.
|
static HazelcastProperty |
WAN_CONSUMER_ACK_DELAY_BACKOFF_MULTIPLIER
Defines the multiplier (the speed of the function) for the backoff
delay for the Enterprise WAN implementation's consumer.
|
static HazelcastProperty |
WAN_CONSUMER_INVOCATION_THRESHOLD
Defines the pending invocation threshold for the Enterprise WAN
replication implementation.
|
public static final HazelcastProperty PARTITION_COUNT
public static final HazelcastProperty PARTITION_OPERATION_THREAD_COUNT
If this is less than the number of partitions on a member, partition operations will queue behind other operations of different partitions.
public static final HazelcastProperty GENERIC_OPERATION_THREAD_COUNT
The default is max(2, processors/2);
public static final HazelcastProperty PRIORITY_GENERIC_OPERATION_THREAD_COUNT
The default is 1.
Having at least 1 priority generic operation thread helps to improve cluster stability since a lot of cluster operations are generic priority operations and they should get executed as soon as possible. If there is a dedicated generic operation thread then these operations don't get delayed because the generic threads are busy executing regular user operations. So unless memory consumption is an issue, make sure there is at least 1 thread.
public static final HazelcastProperty RESPONSE_THREAD_COUNT
By default there are 2 response threads; this gives stable and good performance.
If set to 0, the response threads are bypassed and the response handling is done on the IO threads. Under certain conditions this can give a higher throughput, but setting it to 0 should be regarded an experimental feature.
public static final HazelcastProperty CLIENT_ENGINE_THREAD_COUNT
map.put
and map.get
, are partition specific and will use a
partition-specific operation thread, but there are also requests that can't be executed on a partition-specific operation
thread, such as multimap.containsValue(value)
, because they need to access all partitions on a given
member.
When not set it is set as core-sizepublic static final HazelcastProperty CLIENT_ENGINE_QUERY_THREAD_COUNT
public static final HazelcastProperty CLIENT_ENGINE_BLOCKING_THREAD_COUNT
public static final HazelcastProperty CLIENT_CLEANUP_PERIOD
public static final HazelcastProperty CLIENT_CLEANUP_TIMEOUT
public static final HazelcastProperty EVENT_THREAD_COUNT
EventServiceImpl
executor.
The executor is responsible for executing the events. If you process a lot of events and have many cores, setting
a higher value is a good practice. This way, more events can be processed in parallel.public static final HazelcastProperty EVENT_QUEUE_CAPACITY
EventServiceImpl
executor.
The executor is responsible for executing the events. If the events are produced at a higher rate than they are
consumed, the queue grows in size. This can lead to an OutOfMemoryError
if the accumulated events
are not small enough to fit in memory. This capacity is shared between event topics.
When the maximum capacity is reached, the items are dropped. This means that the event system is a 'best effort' system
and there is no guarantee that you are going to get an event.
Since the capacity is shared between topics, one topic might fill the entire queue and cause
other topics to drop their messages.public static final HazelcastProperty EVENT_QUEUE_TIMEOUT_MILLIS
public static final HazelcastProperty EVENT_SYNC_TIMEOUT_MILLIS
This timeout configures the maximum amount of waiting time for this fake response. Setting it to a too low value can lead to an uncontrolled growth of the outbound write queue of the connection.
public static final HazelcastProperty HEALTH_MONITORING_LEVEL
public static final HazelcastProperty HEALTH_MONITORING_DELAY_SECONDS
public static final HazelcastProperty HEALTH_MONITORING_THRESHOLD_MEMORY_PERCENTAGE
public static final HazelcastProperty HEALTH_MONITORING_THRESHOLD_CPU_PERCENTAGE
public static final HazelcastProperty IO_THREAD_COUNT
E.g., if 3 is configured, then you get 3 threads doing input and 3 doing output. For individual control,
check IO_INPUT_THREAD_COUNT
and IO_OUTPUT_THREAD_COUNT
.
The default is depends on the number of available processors. If the available processors count is smaller than 20, there will be 3+3 io threads, otherwise 4+4. If SSL is enabled, then the default number of IO threads will be corecount/2.
public static final HazelcastProperty IO_INPUT_THREAD_COUNT
IO_THREAD_COUNT
.public static final HazelcastProperty IO_OUTPUT_THREAD_COUNT
IO_THREAD_COUNT
.public static final HazelcastProperty IO_WRITE_THROUGH_ENABLED
public static final HazelcastProperty CONCURRENT_WINDOW_MS
public static final HazelcastProperty IO_BALANCER_INTERVAL_SECONDS
IOBalancer
executions. The shorter intervals will catch I/O Imbalance faster, but they will cause higher overhead.
Please see the documentation of IOBalancer
for a detailed explanation of the problem.
The default is 20 seconds. A value smaller than 1 disables the balancer.
public static final HazelcastProperty PREFER_IPv4_STACK
public static final HazelcastProperty PHONE_HOME_ENABLED
public static final HazelcastProperty CONNECT_ALL_WAIT_SECONDS
public static final HazelcastProperty MAP_LOAD_CHUNK_SIZE
public static final HazelcastProperty MERGE_FIRST_RUN_DELAY_SECONDS
public static final HazelcastProperty MERGE_NEXT_RUN_DELAY_SECONDS
public static final HazelcastProperty OPERATION_CALL_TIMEOUT_MILLIS
public static final HazelcastProperty OPERATION_BACKUP_TIMEOUT_MILLIS
public static final HazelcastProperty FAIL_ON_INDETERMINATE_OPERATION_STATE
IndeterminateOperationStateException
. However, even if the invocation fails,
there will not be any rollback on other successful replicas.public static final HazelcastProperty INVOCATION_MAX_RETRY_COUNT
public static final HazelcastProperty INVOCATION_RETRY_PAUSE
public static final HazelcastProperty SOCKET_BIND_ANY
public static final HazelcastProperty SOCKET_SERVER_BIND_ANY
public static final HazelcastProperty SOCKET_CLIENT_BIND_ANY
public static final HazelcastProperty SOCKET_CLIENT_BIND
public static final HazelcastProperty SOCKET_RECEIVE_BUFFER_SIZE
public static final HazelcastProperty SOCKET_SEND_BUFFER_SIZE
public static final HazelcastProperty SOCKET_BUFFER_DIRECT
public static final HazelcastProperty SOCKET_CLIENT_RECEIVE_BUFFER_SIZE
Hazelcast creates all connections with receive buffer size set according to #PROP_SOCKET_RECEIVE_BUFFER_SIZE. When it detects a connection was opened by a client then it adjusts receive buffer size according to this property.
Size is in kilobytes.
The default is -1 (same as receive buffer size for connections opened by members).
public static final HazelcastProperty SOCKET_CLIENT_SEND_BUFFER_SIZE
Hazelcast creates all connections with send buffer size set according to #PROP_SOCKET_SEND_BUFFER_SIZE. When it detects a connection was opened by a client then it adjusts send buffer size according to this property.
Size is in kilobytes.
The default is -1 (same as receive buffer size for connections opened by members).
public static final HazelcastProperty SOCKET_CLIENT_BUFFER_DIRECT
public static final HazelcastProperty SOCKET_LINGER_SECONDS
public static final HazelcastProperty SOCKET_CONNECT_TIMEOUT_SECONDS
public static final HazelcastProperty SOCKET_KEEP_ALIVE
public static final HazelcastProperty SOCKET_NO_DELAY
public static final HazelcastProperty SHUTDOWNHOOK_ENABLED
public static final HazelcastProperty SHUTDOWNHOOK_POLICY
HazelcastInstance.shutdown()
It's not recommended to rely on shutdown hook, this is a last-effort measure.public static final HazelcastProperty WAIT_SECONDS_BEFORE_JOIN
public static final HazelcastProperty MAX_WAIT_SECONDS_BEFORE_JOIN
public static final HazelcastProperty MAX_JOIN_SECONDS
public static final HazelcastProperty MAX_JOIN_MERGE_TARGET_SECONDS
public static final HazelcastProperty HEARTBEAT_INTERVAL_SECONDS
public static final HazelcastProperty MASTERSHIP_CLAIM_TIMEOUT_SECONDS
public static final HazelcastProperty MAX_NO_HEARTBEAT_SECONDS
public static final HazelcastProperty HEARTBEAT_FAILURE_DETECTOR_TYPE
deadline
: A deadline based failure detector uses an absolute timeout
for missing/lost heartbeats. After timeout member is considered as dead/unavailable.
phi-accrual
: Implementation of 'The Phi Accrual Failure Detector' by Hayashibara et al.
as defined in their paper. Phi Accrual Failure Detector is adaptive to network/environment conditions,
that's why a lower MAX_NO_HEARTBEAT_SECONDS
(for example 10 or 15 seconds) can be used to provide
faster detection of unavailable members.
deadline
.public static final HazelcastProperty MEMBER_LIST_PUBLISH_INTERVAL_SECONDS
public static final HazelcastProperty CLIENT_HEARTBEAT_TIMEOUT_SECONDS
public static final HazelcastProperty CLUSTER_SHUTDOWN_TIMEOUT_SECONDS
public static final HazelcastProperty INITIAL_MIN_CLUSTER_SIZE
public static final HazelcastProperty INITIAL_WAIT_SECONDS
public static final HazelcastProperty TCP_JOIN_PORT_TRY_COUNT
public static final HazelcastProperty MAP_REPLICA_SCHEDULED_TASK_DELAY_SECONDS
public static final HazelcastProperty MAP_EXPIRY_DELAY_SECONDS
public static final HazelcastProperty MAP_EVICTION_BATCH_SIZE
public static final HazelcastProperty HOT_RESTART_FREE_NATIVE_MEMORY_PERCENTAGE
public static final HazelcastProperty LOGGING_TYPE
public static final HazelcastProperty LOGGING_ENABLE_DETAILS
public static final HazelcastProperty ENABLE_JMX
public static final HazelcastProperty JMX_UPDATE_INTERVAL_SECONDS
public static final HazelcastProperty MC_MAX_VISIBLE_SLOW_OPERATION_COUNT
public static final HazelcastProperty MC_EXECUTOR_THREAD_COUNT
public static final HazelcastProperty CONNECTION_MONITOR_INTERVAL
public static final HazelcastProperty CONNECTION_MONITOR_MAX_FAULTS
public static final HazelcastProperty PARTITION_MIGRATION_INTERVAL
public static final HazelcastProperty PARTITION_MIGRATION_TIMEOUT
public static final HazelcastProperty PARTITION_FRAGMENTED_MIGRATION_ENABLED
public static final HazelcastProperty DISABLE_STALE_READ_ON_PARTITION_MIGRATION
public static final HazelcastProperty PARTITION_TABLE_SEND_INTERVAL
public static final HazelcastProperty PARTITION_BACKUP_SYNC_INTERVAL
public static final HazelcastProperty PARTITION_MAX_PARALLEL_REPLICATIONS
public static final HazelcastProperty PARTITIONING_STRATEGY_CLASS
public static final HazelcastProperty GRACEFUL_SHUTDOWN_MAX_WAIT
public static final HazelcastProperty SLOW_OPERATION_DETECTOR_ENABLED
SlowOperationDetector
.public static final HazelcastProperty SLOW_OPERATION_DETECTOR_THRESHOLD_MILLIS
OperationService
is considered to be slow.
These operations will log a warning and will be shown in the Management Center with detailed information, e.g. stacktrace.public static final HazelcastProperty SLOW_OPERATION_DETECTOR_LOG_RETENTION_SECONDS
If an invocation is older than this value, it will be purged from the log to prevent unlimited memory usage. When all invocations are purged from a log, the log itself will be deleted.
public static final HazelcastProperty SLOW_OPERATION_DETECTOR_LOG_PURGE_INTERVAL_SECONDS
public static final HazelcastProperty SLOW_OPERATION_DETECTOR_STACK_TRACE_LOGGING_ENABLED
public static final HazelcastProperty LOCK_MAX_LEASE_TIME_SECONDS
public static final HazelcastProperty ENTERPRISE_LICENSE_KEY
public static final HazelcastProperty MAP_WRITE_BEHIND_QUEUE_CAPACITY
writeCoalescing
to false
(see MapStoreConfig.setWriteCoalescing(boolean)
).
Otherwise its value will not be taken into account.
The per node maximum write-behind queue capacity is the total of all write-behind queue sizes in a node, including backups.
The maximum value which can be set is Integer.MAX_VALUE
public static final HazelcastProperty CACHE_INVALIDATION_MESSAGE_BATCH_ENABLED
public static final HazelcastProperty CACHE_INVALIDATION_MESSAGE_BATCH_SIZE
public static final HazelcastProperty CACHE_INVALIDATION_MESSAGE_BATCH_FREQUENCY_SECONDS
When the number of events do not come up to CACHE_INVALIDATION_MESSAGE_BATCH_SIZE
in the given time period (which
is defined by this property); those events are gathered into a batch and sent to target.
public static final HazelcastProperty MAP_INVALIDATION_MESSAGE_BATCH_ENABLED
public static final HazelcastProperty MAP_INVALIDATION_MESSAGE_BATCH_SIZE
public static final HazelcastProperty MAP_INVALIDATION_MESSAGE_BATCH_FREQUENCY_SECONDS
When the number of events do not come up to MAP_INVALIDATION_MESSAGE_BATCH_SIZE
in the given time period (which
is defined by this property); those events are gathered into a batch and sent to target.
public static final HazelcastProperty BACKPRESSURE_ENABLED
With back-pressure enabled, this can't happen.
Back pressure is implemented by making asynchronous backups operations synchronous. This prevents the internal queues from overflowing because the invoker will wait for the primary and for the backups to complete. The frequency of this is determined by the sync-window. To deal with overloads of backups, the property 'hazelcast.operation.backup.timeout.millis' should be set to a larger value; above 60000 is recommended. Otherwise it can still happen backups accumulate.
public static final HazelcastProperty BACKPRESSURE_SYNCWINDOW
A sync window of 10 means that 1 in 10 BackupAwareOperations get their async backups convert to sync backups.
A sync window of 1 means that every BackupAwareOperation get their async backups converted to sync backups. 1 is also the smallest legal value for the sync window.
There is some randomization going on to prevent resonance. Therefore, with a sync window of n, not every Nth BackupAwareOperation operation gets its async backups converted to sync.
This property only has meaning when backpressure is enabled.
public static final HazelcastProperty BACKPRESSURE_BACKOFF_TIMEOUT_MILLIS
If an invocation can't be made because there are too many pending invocations, then an exponential backoff is done
to give the system time to deal with the backlog of invocations. This property controls how long an invocation is
allowed to wait before getting a HazelcastOverloadException
.
The value needs to be equal or larger than 0.
public static final HazelcastProperty BACKPRESSURE_MAX_CONCURRENT_INVOCATIONS_PER_PARTITION
To prevent the system from overloading, HZ can apply a constraint on the number of concurrent invocations. If the maximum number of concurrent invocations has been exceeded and a new invocation comes in, then an exponential back-off is applied till eventually a timeout happens or there is room for the invocation.
By default it is configured as 100. With 271 partitions, that would give (271 + 1) * 100 = 27200 concurrent invocations from a single member. The +1 is for generic operations. The reasons why 100 is chosen are: - there can be concurrent operations that touch a lot of partitions which consume more than 1 invocation, and - certain methods like those from the IExecutor are also invocations and they can be very long running.
No promise is made for the invocations being tracked per partition, or if there is a general pool of invocations.
public static final HazelcastProperty QUERY_PREDICATE_PARALLEL_EVALUATION
Each Hazelcast member evaluates query predicates using a single thread by default. In most cases the overhead of inter-thread communication overweight benefit of parallel execution.
When you have a large dataset and/or slow predicate you may benefit from parallel predicate evaluations. Set to true if you are using slow predicates or have < 100,000s entries per member.
The default is false.
public static final HazelcastProperty AGGREGATION_ACCUMULATION_PARALLEL_EVALUATION
Each Hazelcast member executes the accumulation stage of an aggregation using a single thread by default. In most cases it pays off to do it in parallel.
The default is true.
public static final HazelcastProperty QUERY_RESULT_SIZE_LIMIT
This value defines the maximum number of returned elements for a single query result. If a query exceeds this number of
elements, a QueryResultSizeExceededException
will be thrown.
This feature prevents an OOME if a single node is requesting the whole data set of the cluster, such as by
executing a query with Predicates.alwaysTrue()
predicate. This applies internally for the IMap.values()
,
IMap.keySet()
and IMap.entrySet()
methods, which are good candidates for OOME in large clusters.
This feature depends on an equal distribution of the data on the cluster nodes to calculate the result size limit per node.
Therefore, there is a minimum value of defined in
QueryResultSizeLimiter
. Configured values below the minimum will be increased to the minimum.
The feature can be disabled by setting its value to -1
(which is the default value).
public static final HazelcastProperty QUERY_MAX_LOCAL_PARTITION_LIMIT_FOR_PRE_CHECK
Predicates.alwaysTrue()
predicate query operations
on maps.
To limit the result size of a query (QUERY_RESULT_SIZE_LIMIT
); a local pre-check on the requesting node can be
done before the query is sent to the cluster. Since this may increase the latency, the pre-check is limited to a maximum
number of local partitions.
By increasing this parameter, you can prevent the execution of the query on the cluster. Increasing this parameter increases the latency due to the prolonged local pre-check.
The pre-check can be disabled by setting the value to -1
.
QUERY_RESULT_SIZE_LIMIT
public static final HazelcastProperty QUERY_OPTIMIZER_TYPE
Values are case sensitive
public static final HazelcastProperty INDEX_COPY_BEHAVIOR
-> Copying on-read means that each index-read operation will copy the result of the query before returning it to the caller.This copying may be expensive, depending on the size of the result, since the result is stored in a map, which means that all entries need to have the hash calculated before being stored in a bucket. Each index-write operation however will be fast, since there will be no copying taking place.
-> Copying on-write means that each index-write operation will completely copy the underlying map to provide the copy-on-write semantics. Depending on the index size, it may be a very expensive operation. Each index-read operation will be very fast, however, since it may just access the map and return it to the caller.
-> Never copying is tricky. It means that the internal data structures of the index are concurrently modified without copy-on-write semantics. Index reads never copy the results of a query to a separate map. It means that the results backed by the underlying index-map can change after the query has been executed. Specifically an entry might have been added / removed from an index, or it might have been remapped. Should be used in cases when a the caller expects "mostly correct" results - specifically, if it's ok if some entries returned in the result set do not match the initial query criteria. The fastest solution for read and writes, since no copying takes place.
It's a tuneable trade-off - the user may decide.
Valid Values:
public static final HazelcastProperty JCACHE_PROVIDER_TYPE
public static final HazelcastProperty DISCOVERY_SPI_ENABLED
Enables the Discovery SPI lookup
Discovery SPI is disabled by default
public static final HazelcastProperty DISCOVERY_SPI_PUBLIC_IP_ENABLED
Enables the Discovery Joiner to use public IP from DiscoveredNode.
Discovery SPI is disabled by default
public static final HazelcastProperty SERIALIZATION_VERSION
BuildInfo.getSerializationVersion()
public static final HazelcastProperty INIT_CLUSTER_VERSION
public static final HazelcastProperty BIND_SPOOFING_CHECKS
public static final HazelcastProperty SEARCH_DYNAMIC_CONFIG_FIRST
true
, search algorithm changes to:
public static final HazelcastProperty MOBY_NAMING_ENABLED
Moby Name is a short human-readable name consisting of randomly chosen adjective and the surname of a famous person.
If set to true, Moby Name will be chosen, otherwise a name that is concatenation of static prefix, number and cluster name.
By default is true.
public static final HazelcastProperty CLIENT_PROTOCOL_UNVERIFIED_MESSAGE_BYTES
public static final HazelcastProperty AUDIT_LOG_ENABLED
public static final HazelcastProperty NETWORK_STATS_REFRESH_INTERVAL_SECONDS
public static final HazelcastProperty METRICS_ENABLED
NOTE: This property overrides BaseMetricsConfig.isEnabled()
.
Using BaseMetricsConfig.setEnabled(boolean)
and the declarative
counterparts are preferred over using this property. The main purpose
of making metrics collection configurable from properties too is
allowing operators to configure the metrics subsystem from the outside
during investigation without touching or copying the configuration
potentially embedded into a signed artifact.
public static final HazelcastProperty METRICS_MC_ENABLED
NOTE: This property overrides MetricsManagementCenterConfig.isEnabled()
.
Using MetricsManagementCenterConfig.setEnabled(boolean)
and the declarative
counterparts are preferred over using this property. The main purpose
of making metrics collection configurable from properties too is
allowing operators to configure the metrics subsystem from the outside
during investigation without touching or copying the configuration
potentially embedded into a signed artifact.
public static final HazelcastProperty METRICS_MC_RETENTION
NOTE: This property overrides MetricsManagementCenterConfig.getRetentionSeconds()
.
Using MetricsManagementCenterConfig.setRetentionSeconds(int)
and the declarative
counterparts are preferred over using this property. The main purpose
of making metrics collection configurable from properties too is
allowing operators to configure the metrics subsystem from the outside
during investigation without touching or copying the configuration
potentially embedded into a signed artifact.
public static final HazelcastProperty METRICS_JMX_ENABLED
NOTE: This property overrides MetricsJmxConfig.isEnabled()
.
Using MetricsJmxConfig.setEnabled(boolean)
and the declarative
counterparts are preferred over using this property. The main purpose
of making metrics collection configurable from properties too is
allowing operators to configure the metrics subsystem from the outside
during investigation without touching or copying the configuration
potentially embedded into a signed artifact.
public static final HazelcastProperty METRICS_DEBUG
public static final HazelcastProperty METRICS_DATASTRUCTURES
public static final HazelcastProperty METRICS_COLLECTION_FREQUENCY
NOTE: This property overrides BaseMetricsConfig.getCollectionFrequencySeconds()
.
Using BaseMetricsConfig.setCollectionFrequencySeconds(int)
and the declarative
counterparts are preferred over using this property. The main purpose
of making metrics collection configurable from properties too is
allowing operators to configure the metrics subsystem from the outside
during investigation without touching or copying the configuration
potentially embedded into a signed artifact.
@Deprecated public static final HazelcastProperty MC_TRUSTED_INTERFACES
public static final HazelcastProperty WAN_CONSUMER_INVOCATION_THRESHOLD
public static final HazelcastProperty WAN_CONSUMER_ACK_DELAY_BACKOFF_INIT_MS
WAN_CONSUMER_INVOCATION_THRESHOLD
to a non-negative value
and that the threshold is exceeded.public static final HazelcastProperty WAN_CONSUMER_ACK_DELAY_BACKOFF_MAX_MS
WAN_CONSUMER_INVOCATION_THRESHOLD
to a non-negative value
and that the threshold is exceeded.public static final HazelcastProperty WAN_CONSUMER_ACK_DELAY_BACKOFF_MULTIPLIER
WAN_CONSUMER_INVOCATION_THRESHOLD
to a non-negative value
and that the threshold is exceeded.Copyright © 2020 Hazelcast, Inc.. All rights reserved.