Solutions

What causes this error: "PRESParticipant_checkTransportInfoMatching:Warning: discovered remote participant 'yyyyy' using the 'shmem' transport with class ID 2"

Note: Applies to RTI Connext 5.2.0 and above. The following error: PRESParticipant_checkTransportInfoMatching:Warning: discovered remote participant 'yyyyy' using the 'shmem' transport with class ID 2. This class ID does not match the class ID 16777216 of the same transport in the local participant ...
belen
Wed, 03/25/2015 - 10:05
58991 reads — 7 comments

WaitSets: What can I do to reduce my CPU usage?

For high-rate data, the usage of a WaitSet may lead to a very high CPU usage if the WaitSet wakes up too often. By default, a WaitSet is created without any properties specified. In this case, the WaitSet wakes up immediately every time a trigger event occurs. However, "waking up" involves a ...
sonia
Wed, 01/28/2015 - 16:47
5673 reads — 0 comments

Why do I see a packet that starts by RTPX instead of RTPS?

Packets starting by RTPX are default domain discovery announcements. This is a new non-standard packet introduced in Connext 5.1.0 to help the tools discover applications running in other domains (for instance, RTI Admin Console). This packet is sent to the default multicast address and port for ...
Juanjo Martin
Tue, 01/20/2015 - 08:09
4108 reads — 0 comments

What causes this error: "COMMENDBeReaderService_onSubmessage:!get ber remoteWriter"

The following error during shutdown: COMMENDBeReaderService_onSubmessage:!get ber remoteWriter indicates that a DataReader has received a sample but the corresponding remote DataWriter has already been deleted. If you are shutting down your entire system, you can probably ignore this message. ...
belen
Thu, 01/08/2015 - 03:47
2823 reads — 0 comments

How to use Request/Reply communication pattern in LabVIEW RTI DDS Toolkit for LabVIEW

This solution is only a workaround until the Request/Reply API is available in LabVIEW. This will only work for one Requester and one Replier. The Request/Reply communication pattern is pretty useful for industrial applications. It is quite normal to have an application requesting an action to ...
sara
Thu, 10/09/2014 - 10:11
17037 reads — 10 comments

What error can occur if a thread stack_size is not large enough?

If you create a large number of instances or entities and there is insufficient thread stack space, you can get the following error: REDAFastBufferPool_getBuffer:!precondition: pool==((void *)0) REDASkiplistNode_new:!create node REDASkiplist_assertNodeEA:!create node ...
bobby
Thu, 07/24/2014 - 23:27
3965 reads — 0 comments

Why does only one of my Reader VIs get the new samples?

A normal scenario in RTI Connext DDS is to have a Publisher that generates samples and several Subscribers that receive the generated data. In other words, the expected out-of-the-box behavior is for all Subscribers to get all the data. This is so because each Subscriber has its own DataReader for ...
sara
Thu, 07/24/2014 - 04:04
4853 reads — 0 comments

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