atiderko
commented
5 years ago Hi murikill,
it is expected behavior!
The master_discovery node observes the ROS-Master and offers all the information about ROS-Nodes, Topics and Services. master_sync "only" change the local ROS-Master by registering the remote information. The filter options in master_sync affect the requests from master_sync to remote master_discovery nodes.
So if you don't want to see topics on second host you must configure the launch file on second host.
I hope it answers your question. If not, please reopen!
Hi,
I try to get running multimaster on my two machines. I did tutorials with one machine from there: http://wiki.ros.org/multimaster_fkie/Tutorials/Setup%20a%20ROS%20master%20synchronization, it works perfectly. After that I've tried to use two machines. After exporting my ROS_MASTER_URI I've launched one talker node, master_discovery and master_sync node on the first PC.
On the second PC I've launched master_discovery and master_sync. Then I've typed: rostopic list and I've seen my /chatter topic from another PC.
Next, I wanted to filter the topics, and I've created more chatter nodes on the first PC and modified "sync_topics" in master_sync.launch file, so that only one chatter-topic shall be visible on the second PC.
Different than expected I've seen all chatter topics... Only after copying the master_sync.launch to the second PC I've seen the expected behavior.
My question: do I something wrong or it's has to be like that?
Tank you!