RTI Core Libraries and Utilities

Which QoS parameters are important to tune for throughput testing?

Note: Applies to RTI Connext 4.x and above. An example throughput test is provided in NDDSHOME/example/[CPP or Java]/performance/throughput. The most common problem encountered in performance testing is a publisher that is sending too fast for the receiver to process. Symptoms of this include a ...
Fernando Garcia
Mon, 01/14/2013 - 07:24
7078 reads — 0 comments

Why do I get a Java 'out of memory' error from rtiddsgen when using a large data type?

Note: Applies to RTI Connext 4.x and above. If your IDL file defines a large data type and rtiddsgen reports an "out of memory" error, increasing the Java heap memory may help. To do this, open $NDDSHOME/scripts/rtiddsgen with an editor of your choice and add -X options (see below) to the last line ...
Fernando Garcia
Mon, 01/14/2013 - 03:16
2409 reads — 0 comments

What causes a "RTIOsapiSharedMemoryMutex_create:OS semget() failure, error 0X1C" error message?

Note: Applies to RTI Connext 4.x. Problem Sometimes when you start your RTI Connext application, you get the following error: [D0037|ENABLE]RTIOsapiSharedMemoryMutex_create:OS semget() failure, error 0X1C [D0037|ENABLE]NDDS_Transport_Shmem_create_recvresource_rrEA:failed to initialize shared memory ...
Fernando Garcia
Mon, 01/14/2013 - 02:24
4297 reads — 0 comments

What is the maximum number of participants per domain?

Applies to RTI Connext 4.x and above With default settings, the maximum number of domains and participants in the same machine is limited as follows: Versions 4.1e and lower: 100 domains (0 .. 99) and 58 participants (0 .. 57) per domain when the domain ID is 0. Version 4.2e and higher: 233 domains ...
Fernando Garcia
Mon, 01/14/2013 - 02:07
16100 reads — 3 comments

What causes 'PRESPsReaderQueue_storeQueueEntry:!deserialize' messages?

Note: Applies to RTI Connext 4.x and above. If the publisher and subscriber applications use different data-type definitions (IDL) for the same topic, it is common to see the following messages reported by the RTI middleware: Prior to 4.4c Unkeyed Data PRESPsReaderQueue_storeQueueEntry:!deserialize ...
Fernando Garcia
Fri, 01/11/2013 - 08:39
5758 reads — 2 comments

Why do I see MIGGeneratorSample_setParameterLength() errors with RTI Data Distribution Service 4.1f?

Note: Applies to RTI Data Distribution Service 4.1f. MIGGeneratorSample_setParameterLength() error messages are caused by a bug when RTPS GAP messages are NACKed by a reliable reader. This error can result in memory corruption. DataWriters issue RTPS GAP messages to indicate that samples are no ...
Fernando Garcia
Fri, 01/11/2013 - 08:05
1450 reads — 0 comments

How do I configure RTI Data Distribution Service not to use multicast?

Note: This solution applies to RTI Data Distribution Service 4.x. If you disable multicast traffic, you will not be able to send or receive multicast data. To disable multicast: Disable multicast in the UDPv4 transport. Configure the initial peers list not to use multicast. Remove any multicast ...
Fernando Garcia
Wed, 01/09/2013 - 05:32
11782 reads — 0 comments

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