If num is set to a value larger than zero, client-side Active Connection Management (ACM) is enabled. This means that connections are automatically closed by the client after they have been idle for
num seconds. This is transparent to applications because connections closed by ACM are automatically reestablished if they are needed again. The default value is
60, meaning that idle connections are automatically closed after one minute.
This property is the server-side equivalent of Ice.ACM.Client. If
num is set to a value larger than zero, server-side Active Connection Management (ACM) is enabled, in which the server automatically closes an incoming connection after it has been idle for
num seconds. The default value is
0, meaning that server-side ACM is disabled by default.
If num is set to zero (the default), an invocation on an indirect proxy whose endpoints are older than the configured locator cache timeout triggers a locator cache update; the run time delays the invocation until the new endpoints are returned by the locator.
If num is set to a value larger than zero, an invocation on an indirect proxy with expired endpoints still triggers a locator cache update, but the update is performed in the background, and the run time uses the expired enpoints for the invocation. This avoids delaying the first invocation that follows expiry of a cache entry.
This property controls how the Ice run time deals with flushing of batch messages. If
num is set to a non-zero value (the default), the run time automatically forces a flush of the current batch when a new message is added to a batch and that message would cause the batch to exceed
Ice.MessageSizeMax. If
num is set to zero, batches must be flushed explicitly by the application; in this case, if the application adds more messages to a batch than permitted by
Ice.MessageSizeMax, the application receives a
MemoryLimitException when it flushes the batch.
If num is a value greater than zero, the Ice run time caches message buffers for future reuse. This can improve performance and reduce the amount of garbage produced by Ice internals that the garbage collector would eventually spend time to reclaim. However, for applications that exchange very large messages, this cache may consume excessive amounts of memory and therefore should be disabled by setting this property to zero. If not defined, the default value is 1.
If set, Ice changes the user and group id to the respective ids of user in
/etc/passwd. This only works if the Ice application is executed by the super-user (Unix only).
Specifies the bzip2 compression level. Legal values for num are
1 to
9, where
1 represents the fastest compression and
9 represents the best compression. Note that higher levels cause the bzip2 algorithm to devote more resources to the compression effort, and may not result in a significant improvement over lower levels. If not specified, the default value is
1.
Specifies the name of an event log source to be used by a Windows service that subclasses
Ice::Service (see
Section 8.3.2). The value of
name represents a subkey of the
Eventlog registry key. An application (or administrator) typically prepares the registry key when the service is installed. If no matching registry key is found, Windows logs events in the
Application log. Any backslashes in
name are silently converted to forward slashes. If not defined,
Ice::Service uses the service name as specified by the
--service option.
This property determines the frequency with which the class garbage collector runs. If the interval is set to zero (the default), no collector thread is created. Otherwise, the collector thread runs every
num seconds.
Specifies whether a communicator has an implicit context and, if so, at what scope the context applies. Legal values for this property are
None (equivalent to the empty string),
PerThread, and
Shared. If not specified, the default value is
None. See
Section 32.12.4 for more information on implicit contexts.
This property controls the maximum size (in kilobytes) of an uncompressed protocol message that is accepted or sent by the Ice run time. The size includes the size of the Ice protocol header. The default size is
1024 (
1 Megabyte). Settings with a value less than
1 are ignored.
If a client sends a message that exceeds the client’s Ice.MessageSizeMax, or the server returns a reply that exceeds the client’s
Ice.MessageSizeMax, the client receives a
MemoryLimitException.
If a client sends a message that exceeds the server’s Ice.MessageSizeMax, the server immediately closes its connection, so the client receives a
ConnectionLostException in that case. In addition, the server logs a
MemoryLimitException if
Ice.Warn.Connections is set.
If the server returns a reply that exceeds the server’s Ice.MessageSizeMax, the server logs a
MemoryLimitException (if
Ice.Warn.Connections is set) but does not close its connection to the client. The client receives an
UnknownLocalException in this case.
If active connection management (ACM) is enabled (see Section 37.4), the Ice run time scans for idle connections to be closed once every
num seconds. If you to not set this property or set
num to zero or a negative value, the run time applies a heuristic to determine how often to scan for idle connections: the default scanning interval is the 10% of smallest configured ACM timeout, with a minimum of 5 seconds, and a maximum of 5 minutes.
If num is set to a value larger than zero, the C++ classes
Ice::Application and
Ice::Service ignore
SIGHUP (for Unix) and
CTRL_LOGOFF_EVENT (for Windows). As a result, an application that sets
Ice.Nohup continues to run if the user that started the application logs off. The default value for
Ice::Application is
0, and the default value for
Ice::Service is
1 (C++ only.)
If num is set to a value larger than zero, invoking an operation using a null smart pointer causes the program to abort immediately instead of raising
IceUtil::NullHandleException (C++ only).
Associates a top-level Slice module with a Java
package. If global metadata is used to enclose generated Java classes in a user-defined package, the Ice run time must be configured in order to successfully unmarshal exceptions and concrete class types. If all top-level modules are generated into the same user-defined package, it is easier to use
Ice.Default.Package instead.
If num is set to a value larger than zero, an object adapter prints "
adapter_name ready" on standard output after initialization is complete. This is useful for scripts that need to wait until an object adapter is ready to be used.
If num is set to a value larger than zero, the process ID is printed on standard output upon startup.
name is the program name, which is set automatically from
argv[0] (C++) and from
AppDomain.CurrentDomain.FriendlyName (C#) during initialization. (For Java,
Ice.ProgramName is initialized to the empty string.) For all languages, the default name can be overridden by setting this property.
This property defines the number of times an operation is retried and the delay between each retry. For example, if the property is set to
0 100 500, the operation is retried 3 times: immediately after the first failure, again after waiting 100ms after the second failure, and again after waiting 500ms after the third failure. The default value (
0) is to retry once immediately. If set to
‑1, no retry occurs.
If num is set to a value larger than zero, Ice automatically calls
Communicator::shutdown once the communicator has been idle for
num seconds. This shuts down the Communicator's server side and causes all threads waiting in
Communicator::waitForShutdown to return. After that, a server will typically do some clean‑up work before exiting. The default value is zero, meaning that the server will not shut down automatically.
If filename is not empty, the standard error stream of this process is redirected to this file, in append mode. This property is checked only for the first communicator that is created in a process.
If filename is not empty, the standard output stream of this process is redirected to this file, in append mode. This property is checked only for the first communicator created in a process.
If num is set to a value larger than zero, a special logger is installed that logs to the
syslog facility instead of standard error. The identifier for
syslog is the value of
Ice.ProgramName (Unix only).
