Configuration Element | Valid Parameters | Description |
Audit Settings | ||
ChannelACL | True or False | Log to the audit file any unsuccessful channel acl interactions. Default is true. |
ChannelFailure | True or False | Log to the audit file any unsuccessful realm interactions. Default is true. |
ChannelMaintenance | True or False | Log to the audit file any channel maintenance activity. Default is false. |
ChannelSuccess | True or False | Log to the audit file any successful channel interactions. Default is false. |
InterfaceManagement | True or False | Log to the audit file any interface management activity. Default is true. |
JoinFailure | True or False | Log to the audit file any unsuccessful join interactions. Default is true. |
JoinMaintenance | True or False | Log to the audit file any join maintenance activity. Default is true. |
JoinSuccess | True or False | Log to the audit file any successful join interactions. Default is false. |
QueueACL | True or False | Log to the audit file any unsuccessful queue acl interactions. Default is true. |
QueueFailure | True or False | Log to the audit file any unsuccessful queue interactions. Default is true. |
QueueMaintenance | True or False | Log to the audit file any queue maintenance activity. Default is false. |
QueueSuccess | True or False | Log to the audit file any successful queue interactions. Default is false. |
RealmACL | True or False | Log to the audit file any unsuccessful realm acl interactions. Default is true. |
RealmFailure | True or False | Log to the audit file any unsuccessful realm interactions. Default is true. |
RealmMaintenance | True or False | Log to the audit file any realm maintenance activity. Default is true. |
RealmSuccess | True or False | Log to the audit file any successful realm interactions. Default is false. |
ServiceACL | True or False | Log to the audit file any unsuccessful service acl interactions. Default is true. |
ServiceFailure | True or False | Log to the audit file any unsuccessful service interactions. Default is true. |
ServiceMaintenance | True or False | Log to the audit file any service maintenance activity. Default is true. |
ServiceSuccess | True or False | Log to the audit file any successful realm interactions. Default is false. |
Client Timeout Values | ||
EventTimeout | 5000 to No Max | The amount of ms the client will wait for a response from the server. Default is 60000. |
HighWaterMark | 2 to No Max | The high water mark for the connection internal queue. When this value is reached the internal queue is temporarily suspended and unable to send events to the server. This provides flow control between publisher and server. Default is 200. |
LowWaterMark | 1 to No Max | The low water mark for the connection internal queue. When this value is reached the outbound internal queue will again be ready to push event to the server. Default is 50. |
QueueAccessWaitLimit | 200 to No Max | The maximum number of milliseconds it should take to gain access to a queue to push events before notifying listeners. Default is 200 |
QueueBlockLimit | 500 to No Max | The maximum number of milliseconds a queue will have reached HWM before notifying listeners, Default is 500. |
QueuePushWaitLimit | 200 to No Max | The maximum number of milliseconds it should take to gain access to a queue and to push events before notifying listeners. Default is 200. |
TransactionLifeTime | 1000 to No Max | The default amount of time a transaction is valid before being removed from the tx store. Default is 20000. |
Cluster Config | ||
BufferSize | 1400 to 1048576 | Size in bytes of the inter realm buffer to use |
ClientQueueSize | 10 to 10000 | Size of the client request queue |
ClientQueueWindow | 10 to 1000 | The number of events sent to an async queue reader before the realm will commit |
ClientStateDelay | 0 to 120000 | The number of seconds to delay the cluster processing client requests when a cluster state change occurs |
DisableHTTPConnections | True or False | Disable HTTP(s) connections between cluster nodes |
DisconnectWait | 1000 to 120000 | Time to wait for the node to form in the cluster |
DisconnectWhenNotReady | True or False | If the node has not formed in the cluster then disconnect the client |
EnableMulticast | True or False | Enables multicast |
EnableSites | True or False | If enabled then the master selection takes into account the Prime Site |
EnableStoreRecoveryRetry | True or False | Enables/Disables the ability for the slave to reattempt a recovery of a store if it detects changes to the store during recovery |
EnginePipelineSize | 1 to 32 | Size of the number of concurrent pipeline threads running within the cluster engine |
FastSlaveMode | True or False | If enabled the realm will move to a slave state while finializing the recovery of local stores |
FilterEventsDuringRecovery | True or False | Only Applicable to JMS Engine Channels. Defines if we recover events that have already been consumed. |
FormationTimeout | 60000 to 300000 | The time to wait for the state to move from recovery to slave or master |
HeartBeatInterval | 1000 to 120000 | Heart Beat interval in milliseconds. Default is 120000. |
InitialConnectionTimeout | 5000 to 240000 | The number of milliseconds that the server will wait while trying to establish a connection to a peer. |
IsCommittedDelay | 1000 to 30000 | When a slave processes a IsCommitted request and it is still recoverying the Transaction store, it will block the clients request for this timeout period. |
MasterVoteDelay | 1000 to 60000 | When a node has requested to be master it will wait this timeout period in milliseconds for the peers to agree. |
MasterWaitTimeout | 1000 to 600000 | When the master is lost from the cluster and the remaining peers detect that the master has the latest state they will wait for this time period for the master to reconnect. If the master fails to reconnect in this time period a new master is elected |
PublishQueueEnabled | True or False | If enabled the slaves will queue publish requests prior to committing them to the cluster |
QueueSize | 100 to 1000 | Number of events outstanding to be processed by the clusters internal queue before sending flow control requests back |
SecureHandshake | True or False | If true, when peers connect they will peform a secure handshake to ensure the connection is valid. This is the prefered and secure option. Disabling this would only be recommended in debug mode. |
SeperateLog | True or False | Create a seperate log file for cluster events. Default is false. |
StateChangeScan | 10000 to No Max | When a realm loses master or slave state then after this timeout all cluster based connections will be disconnected. If the realm reenters the cluster then the disconnect timeout is aborted. |
SyncPingSize | 100 to 10000 | Number of events sent before a cluster sync occurs |
TransactionSync | True or False | Make all transactional based events sync across the cluster |
Comet Config | ||
BufferSize | 1024 to 102400 | The buffer size for comet request. |
EnableLogging | True or False | Enables logging of all comet queries |
Timeout | 10000 to No Max | The timeout for a comet connection. |
Connection Config | ||
AllowBufferReuse | True or False | If set to true then buffers will be allocated from the buffer pool and once finished with returned to the pool. If set to false then buffers are allocated on the fly and then left for the system to free them. It is best to leave this set to true. |
BufferManagerCount | 1 to 256 | The number of Buffer Managers that the server will allocate. This is used during startup to size and manage the netowrk buffers. |
BufferPoolSize | 100 to 10000 | The underlying Universal Messaging IO utilizes buffers from a pool. By default we preload the pool with this number of buffers. As the reads/writes require buffers they are allocated from this pool, then once used are cleared and returned. If the size is too small we end up creating and destroying buffers, if too large we have a pool of buffers which are not used taking up memory. |
BufferQueueSize | 10 to 1000 | Number of buffers to queue before we stop reading from the socket. |
BufferSize | 1024 to 1048576 | This specifies the default size of the network buffers that Universal Messaging uses for its NIO. If small, then Universal Messaging will require more buffers (up to the maximum specified by BufferPoolSize) to send an event. If too large, then memory may be wasted on large, unused buffers. These buffers are reused automatically by the server, and are used to transfer data from the upper application layer to the network. So, for example, the server might use all BufferPoolSize buffers to stream from 1 application level buffer (depending on the relative sizes of the buffers). An efficient size would be about 40% more than the average client event, or 5K (whichever is largest). |
CometReadTimeout | 1000 to 120000 | Specifies the time the server will wait for a client to complete sending the data |
ConnectionDelay | 10 to 60000 | When the server has exceeded the connection count, how long to hold on to the connection before disconnecting. Default is 60000. |
FlexKeepAlive | 5000 to 60000 | The number of milliseconds the server will wait before sending a heartbeat for Adobe Flex clients. Default is 25000. |
HandshakeTimeout | 1000 to No Max | The number of milliseconds that the server will wait for the session to be established. Default is 1000, i.e. 1 second |
IdleDriverTimeout | 120000 to No Max | Specifies the time in milliseconds that a communications driver can be idle before being deemed as inactive. When this happens the server will automatically close and remove the driver |
IdleSessionTimeout | 10000 to No Max | If there has been no communication from a client for the configured number of milliseconds, the client is deemed idle and is disconnected. This typically occurs when there are network issues between a client and the server. |
KeepAlive | 5000 to No Max | The number of milliseconds the server will wait before sending a heartbeat. Default is 60000. |
MaxBufferSize | 1024 to No Max | The maximum buffer size that the server will accept. Default is 1048576. |
MaxNoOfConnections | -1 to No Max | Sets the maximum concurrent connections to the server, -1 indicates no restriction, default is -1. |
MaxWriteCount | 5 to 100 | When writing many events to a client the write pool thread may continue to send the events before returning to the pool to process other clients requests. So, for example if its set to 5, then the thread will send 5 events from the clients queue to the client before returning to the pool to process another request. |
NIOSelectArray | True or False | Specifies that the low level processing will use an array and not an iterator |
NetworkMonitorThreads | 2 to 100 | The number of threads to allocate to flushing client data, Please note this will only take effect after a restart |
OutputBlockSize | 100 to No Max | The size of the application-level buffer used when streaming events. If the size is exceeded during streaming, the buffer is immediately emptied, and its contents transmitted over the network. Typically, each connection has its own buffer for outbound streaming. Default is 1400. |
PriorityReadSpinLockMaxConnections | 0 to 8 | Maximum number of clients allowed to allocate high priority spin locks |
PriorityReadSpinLockTime | 1 to 10000 | Maximum number of clients allowed to allocate high priority spin locks |
PriorityReadType | 0 to 2 | If enabled then high priority sessions will be enabled to run spin locks waiting to read |
QueueHighWaterMark | 2 to No Max | The number of events in a client output queue before the server stops sending events. Default is 100. |
QueueLowWaterMark | 1 to No Max | The number of events in the clients queue before the server resumes sending events. Default is 50. |
ReadCount | 1 to 20 | Number of times the thread will loop around waiting for an event to be delivered before returning |
UseDirectBuffering | True or False | If true the server will allocate DirectByteBuffers to use for network I/O, else the server will use HeapByteBuffers, the main difference is where the JVM will allocate memory for the buffers the DirectByteBuffers perform better |
WriteHandlerType | 1 to 5 | Specifies the type of write handler to use |
whEventThresholdCount | 1 to 2000 | Number of events to exceed in the whEventThresholdTime to detect a peak |
whEventThresholdTime | 1 to 2000 | Number of milliseconds to sample the event rate to detect peaks |
whMaxEventsBeforeFlush | 1 to 10000 | Total number of events that can be sent before a flush must be done |
whMaxEventsPerSecond | No Min to No Max | Specifies the total number of events per second that a realm will send to clients before switching modes into peak mode |
whMaxTimeBetweenFlush | 1 to 1000 | Total number of milliseconds to wait before a flush is done |
whPeakTrailDelay | 100 to 5000 | When a peak is detected how long to stay in this state before returning to normal |
Data Stream Config | ||
FanoutTaskQueueSize | 32 to 1024 | Sets the number of tasks that the FanOut Executor will have outstanding |
FanoutTraversalType | 0 to 2 | The method to use when traversing connections. |
MaxSessionIdSize | 5 to 30 | Maximum size of the session Id used to uniquely identify the clients |
MonitorTimer | 1000 to 120000 | Time interval in milliseconds to scan the data group configuration looking for idle / completed streams |
OffloadMulticastWrite | True or False | If true then all multicast writes will be performed by the parallel fanout engine. |
ParallelFanoutThreshold | 10 to 10000 | Number of streams when the server will use parallel fanout |
ParallelWorkers | 1 to 64 | Number of threads to allocate for the fanout executor, |
SendInitialMapping | True or False | When any stream registered client connect sends the entire DataGroup Name to Id mapping |
Environment Config | ||
AvailableProcessors | READ ONLY | Number of CPU's available |
JavaVendor | READ ONLY | Vendor of Java Virtual Machine |
JavaVersion | READ ONLY | Virtual Machine Version |
NanosecondSupport | READ ONLY | Nano second support available through JVM on Native OS |
OSArchitecture | READ ONLY | Operating System Architecture |
OSName | READ ONLY | Operating System Name |
OSVersion | READ ONLY | Operating System Version |
ProcessId | READ ONLY | Process ID |
ServerBuildDate | READ ONLY | Universal Messaging Server Build Date |
ServerBuildNumber | READ ONLY | Universal Messaging Server Build Number |
ServerVersion | READ ONLY | Universal Messaging Server Build Version |
TimerAdjustment | READ ONLY | The size of the Operating Systems quatum |
Event Storage | ||
ActiveDelay | 100 to No Max | The time in milliseconds that an active channel will delay between scans. Default is 1000. |
AutoDeleteScan | 1000 to 500000 | Specifies the number of milliseconds between scans on AutoDelete stores to see if they should be deleted |
AutoMaintenanceThreshold | 0 to 100 | Sets the percentage free before an auto maintenance is performed, applies to internal stores only |
CacheAge | 1000 to No Max | The time in ms that cached events will be kept in memory for. Default is 86400000. |
EnableStoreCaching | True or False | If true the server will try and cache events in memory after they have been written/read |
EnableStoreReadBuffering | True or False | If true the server will buffer the reads from the store. This will increase replay performance greatly |
IdleDelay | 5000 to No Max | The time in milliseconds that an idle channel will delay between scans. Default is 60000. |
JMSEngineAutoPurgeTime | 5000 to 600000 | Defines the interval between clean up of JMS Engine resources |
PageSize | 10 to 100000 | The size in page size to use for the event store |
QueueDeliveryPersistencePolicy | 0 to 2 | Sets the Queue Delivery Persistence Policy |
StoreReadBufferSize | 1024 to 2097152 | Size of the buffer to use during reads from the store |
SyncBatchSize | 1 to 1000 | Specifies the maximum size before the sync call is made |
SyncServerFiles | True or False | If true the server will sync each file operation for its internal files |
SyncTimeLimit | 1 to 1000 | Specifies the maximum time in milliseconds that will be allowed before the sync is called |
ThreadPoolSize | 1 to 4 | The number of threads allocated to perform the management task on the channels. Default is 1. |
Fanout Values | ||
ConnectionGrouping | True or False | If true allows the server to group connections with the same selector providing improved performance |
JMSQueueMaxMultiplier | 1 to 10 | The multiplier used on the High Water mark when processing events from a JMS Engine Queue/Topic |
MaximumDelayInWrite | 1 to 5000 | The number of milliseconds an event will wait in a queue before it will be processed |
ParallelBatchSize | 50 to 10000 | Specifies the number of connections to process in one batch per parallel thread |
ParallelThreadPoolSize | 2 to 64 | Specifies the number of threads to use within the thread pool. Restart Required |
ParallelThreshold | 1 to 10000 | Specifies the number of connections to a channel before the server will use the parallel fanout engine |
ParallelUseGlobalPool | True or False | If true all channels use a common pool else all channel have there own pool. Restart required |
PeakPublishDelay | 0 to No Max | When clients start to hit high water mark how long to delay the publisher to allow the client time to catch up |
PublishDelay | 0 to No Max | How long to delay the publisher when subscribers queue start to fill, in milliseconds. Default is 10. |
PublishExpiredEvents | True or False | Publish expired events at server startup. Default is true. |
RoundRobinDelivery | True or False | Use a round robin approach to event delivery. Default is false. |
SendEndOfChannelAlways | True or False | Always send a End Of Channel, even if we find no matches within the topic |
SendPubEventsImmediately | True or False | Send publish events immediately |
SyncQueueDelay | 10 to 3600000 | Maximum number of milliseconds the queue publisher will be delayed |
SyncQueuePublisher | True or False | If true then the queue publisher will be sync with the queue consumers |
Global Values | ||
AllowRealmAdminFullAccess | True or False | Any subject with Admin ACL applied has full access to all objects within the realm. |
CacheJoinInfoKeys | True or False | If enabled we cache join key information between events passed over joins. This reduces the number of objects created |
DisableExplicitGC | True or False | If enabled the server will call the Garbage Collector at regular intervals to keep memory usage down |
EnableDNSLookups | True or False | If enabled the server will attempt to perform a DNS lookup when a client connects to resolve the IP address to a hostname. In some instances this may slow down the initial connection. |
ExtendedMessageSelector | True or False | If true, allows the server to use the extended message selector syntax. Default is false. |
HTTPCookieSize | 14 to 100 | The size in bytes to be used by nhp(s) cookies |
NHPScanTime | 5000 to No Max | The number of milliseconds that the server will wait before scanning for client timeouts. Default is 5000, i.e. 5 seconds |
NHPTimeout | 2000 to No Max | The number of milliseconds the server will wait for client authentication. Default is 120000, i.e. 2 minutes. |
NanoDelayBase | 10000 to 1000000 | This number represents the number of nano seconds in a millisecond. Typically this is 1,000,000 however, it can be used to increase or decrease the internal delays used by Universal Messaging. |
OverrideEveryoneUser | True or False | Override the *@* permission for channels / queues with explicit acl entry permissions. |
SendRealmSummaryStats | True or False | If true sends the realms status summary updates. Default is false. |
ServerStateFlush | 50 to 1000 | Specifies the time in milliseconds between scans to save the servers state files |
ServerTime | True or False | Allow the server to send the current time to the clients. Default is true. |
StampDictionary | True or False | Place Universal Messaging details into the dictionary, default is false. |
StampHost | True or False | Stamps the header with the publishing host (true/false) |
StampTime | True or False | Stamps the header with the current time (true/false) |
StampTimeUseHPT | True or False | If this is set to true then the server will use an accurate ms clock, if available, to stamp the dictionary |
StampTimeUseHPTScale | 0 to 2 | This has 3 values, milli, micro or nano accuracy |
StampUser | True or False | Stamps the header with the publishing user (true/false) |
StatusBroadcast | 2000 to No Max | The number of ms between status events being published. Default is 5000, i.e. every 5 seconds. |
StatusUpdateTime | 2000 to No Max | The number of ms between status events being written to disk. Status events provide a history of the realm's state, the default for this is Long.MAX_VALUE, i.e. never written to disk. |
SupportOlderClients | True or False | Allow the server to support older clients. Default is true. |
Inter-Realm Comms Config | ||
EstablishmentTime | 10000 to 120000 | Time for an inter realm link to be initially established. |
KeepAliveInterval | 1000 to 120000 | Time interval where if nothing is sent a Keep Alive event is sent |
KeepAliveResetTime | 10000 to 180000 | If nothing has been received for this time the connection is deemed closed |
MaximumReconnectTime | 1000 to 50000 | The maximum number of milliseconds to wait before trying to reestablish a connection. |
MinimumReconnectTime | 100 to 10000 | The minimum time to wait before establishing a connection. |
Timeout | 60000 to 180000 | If no events received within this time limit the link is assumed dead and will be closed. |
WriteDelayOnFail | True or False | If true the comms will wait for the link to re establish. |
WriteDelayTimeout | 1000 to 60000 | The maximum time to wait in a write of the link has dropped. |
JVM Management | ||
AutoThreadDumpOnExit | True or False | Defines if a thread dump is produced when the server exits. |
EmergencyThreshold | 80 to 99 | The memory threshold when the server starts to aggressively scan for objects to release. Default is 94, i.e. 94% |
EnableJMX | True or False | Enable JMX beans within the server |
ExitOnDiskIOError | True or False | If true, the server will exit if it gets a I/O Exception. Default is true |
ExitOnInterfaceFailure | True or False | If true and for any reason an interface cannot be started when the realm initialises, the realm will shutdown. |
ExitOnMemoryError | True or False | If true, the server will exit if it gets an out of memory exception. Default is true. |
IORetryCount | 2 to 100 | Number of times an file I/O operation will be attemptd before aborting |
IOSleepTime | 100 to 60000 | Time between disk I/O operations if it fails |
JMXRMIServerURLString | String | JNDI Lookup URL for the JMX Server to use. |
MemoryMonitoring | 60 to 30000 | Number of milliseconds between monitoing memory usage on the realm. Default is 2000. |
ThrottleAllPublishersAtThreshold | True or False | Defines if publishers will be throttled back when memory emergency threshold is reached |
WarningThreshold | 70 to 95 | The memory threshold when the server starts to scan for objects to release. Default is 85, i.e. 85%. |
Join Config | ||
ActiveThreadPoolSize | 1 to No Max | The number of threads to be assigned for the join recovery. Default is 2. |
IdleThreadPoolSize | 1 to No Max | The number of threads to manage the idle and reconnection to remote servers. Default is 1. |
MaxEventsPerSchedule | 1 to No Max | Number of events that will be sent to the remote server in one run. Default is 50. |
MaxQueueSizeToUse | 1 to No Max | The maximum events that will be queued on behalf of the remote server. Default is 100. |
UseQueuedLocalJoinHandler | True or False | Specifies whether to use a queued join event handler. True will enable source channels and destination channels to be process events independently |
Logging Config | ||
DefaultLogSize | No Min to No Max | The default size of the log in bytes |
EmbedTag | True or False | Whether to include the type tag in the log message |
EnableLog4J | True or False | If enabled will intercept log messages and pass to Log4J as well |
LogManager | 0 to 3 | The Log manager to use |
RolledLogFileDepth | No Min to No Max | The number of log files to keep on disk when using log rolling. Oldest entries will be deleted when new files are created. |
customAuditTag | String | The tag to mark Audit log entries with |
customFailureTag | String | The tag to mark Failure log entries with |
customFatalTag | String | The tag to mark Fatal log entries with |
customInformativeTag | String | The tag to mark Informative log entries with |
customLogTag | String | The tag to mark Log log entries with |
customSecurityTag | String | The tag to mark Security log entries with |
customSuccessTag | String | The tag to mark successful log entries with |
customWarningTag | String | The tag to mark Warning log entries with |
fLoggerLevel | 0 to 7 | The server logging level, between 0 and 7 with 0, indicating very verbose, and 7 inidicating very quiet. Default is 1. |
MQTTConfig | ||
Timeout | 1000 to 60000 | The number of milliseconds over the timeout value before the server will close the connection |
Plugin Config | ||
EnableAccessLog | True or False | Defines if plugin access log produced |
EnableErrorLog | True or False | Defines if plugin error log produced |
EnablePluginLog | True or False | Defines if plugin status log produced |
MaxNumberOfPluginThreads | 10 to 10000 | Maximum number of threads to allocate to the plugin manager |
PluginTimeout | 1000 to 30000 | Time in milliseconds that the plugin will read from a client |
Protobuf Config | ||
CacheEventFilter | True or False | Hold the Protocol Buffer filter cache in memory. Default true |
FilterProtobufEvents | True or False | Allows the server to filter on Protocol Buffers. Default is true |
MaximumProtobufBuilders | No Min to No Max | The maximum amount of builders per descriptor file. Default 4 |
MinimumProtobufBuilders | No Min to No Max | The minimum amount of builders per descriptor file. Default 2 |
ProtobufDescriptorsInputDir | String | The folder to search for Protocol Buffer descriptor files to parse incoming messages. |
ProtobufDescriptorsOutputDir | String | The folder for the server to put the combined Protocol Buffer descriptor file for serving out to clients. |
UpdateDescriptorsInterval | 1000 to No Max | The time in milliseconds between checking the Protocol Buffer directory for updates. Default is 60000 |
RecoveryDaemon | ||
EventsPerBlock | 1 to No Max | The number of events to send in one block |
ThreadPool | 1 to No Max | Number of threads to use for client recovery |
Thread Pool Config | ||
CommonPoolThreadSize | 5 to 1000 | Maximum number of thread to allocate to the common thread pool |
ConnectionThreadPoolMaxSize | 10 to No Max | The maximum number of threads allocated to establish client connections |
ConnectionThreadPoolMinSize | 4 to 100 | The minimum number of threads allocated to establish client connections |
ConnectionThreadWaitTime | 10000 to 300000 | The time for the thread to wait for the client to finalise the connection |
EnableConnectionThreadPooling | True or False | If true then if NIO is available it will be available for interfaces to use it and then all reads/writes will be done via the Read/Write thread pools. If NIO is not available then a limited used write thread pool is used. |
ReadThreadPoolMaxSize | 4 to No Max | The maximum number of threads that will be allocated to the read pool. If NIO is not available this should be set to the maximum number of clients that is expected to connect. If NIO is available then this number would be best to keep under 20. |
ReadThreadPoolMinSize | 4 to No Max | This is the number of threads that will always be present in the read thread pool. If this is too small then the thread pool will be requesting new threads from the idle queue more often. |
SchedulerPoolSize | 1 to 100 | The number of threads assigned to the scheduler, default is 2. |
ThreadIdleQueueSize | 5 to 50 | When threads are released from various pools since they no longer need them they end up in the idle queue. If this idle queue exceeds this number the threads are destroyed. By specifying this number to be large enough to accommodate enough idle threads so that if any thread pool requires to expand then they can be reused. |
WriteThreadPoolMaxSize | 5 to No Max | The maximum number of threads that will be allocated to the write pool. If NIO is not available this should be set to the maximum number of clients that is expected to connect. If NIO is available then this number would be best to keep under 20. |
WriteThreadPoolMinSize | 5 to No Max | This is the number of threads that will always be present in the write thread pool. If this is too small then the thread pool will be requesting new threads from the idle queue more often. |
TransactionManager | ||
MaxEventsPerTransaction | 0 to No Max | The maximum number of events per transaction, a 0 indicates no limit |
MaxTransactionTime | 1000 to No Max | Time in milliseconds that a transaction will be kept active |
TTLThreshold | 1000 to 60000 | The minimum time in milliseconds, below which the server will not store the Transaction ID |