Fast-DDS
Fast-DDS copied to clipboard
eProsima
Unable to recover communication after network disconnection
Is there an already existing issue for this?
- [X] I have searched the existing issues
Expected behavior
Computer: WIN11&fastdds 2.14.0 ZYNQ: ubuntu22 arm&fastdds 2.14.0
The computer and ZYNQ can communicate normally, but when I disconnect the computer's network and reconnect, I cannot communicate. You must restart the software on your computer to reconnect to FastDDS.
Observing abnormal situations: 1.When there is an exception, the computer can send a message to ZYNQ and you can see the relevant print in the debug information. 2.When there is an exception, ZYNQ sends a message to the computer and uses a tool called WireShark to capture the data and send it to the computer. 3. When there is an exception, void fastdds subscriber:: SubListener:: on_data available (DataReader * reader) cannot enter the callback、
May I ask if there is a problem with my settings? Can fastdds automatically reconnect?
Current behavior
NULL
Steps to reproduce
Restart software
Fast DDS version/commit
2.14.0
Platform/Architecture
Ubuntu Focal 20.04 amd64, Other. Please specify in Additional context section.
Transport layer
UDPv4
Additional context
No response
XML configuration file
No response
Relevant log output
No response
Network traffic capture
No response
Hi @Jun1172, thanks for using Fast DDS. Your router may assign different IP addresses to the devices when the network connection is restarted. In such case, as long as Fast DDS does not allow changing the configuration on execution time, the connection may not be reestablished. Can you confirm if it is happening in your scenario?
The discovery mechanism of fastdds may affect the disconnection and reconnection; (rtps.builtin.discovery_config.leaseDuration_announcementperiod = Duration_t(5, 0);) The same ip, if the network is disconnected for more than 5 minutes, it cannot be connected again;
(rtps.builtin.discovery_config.leaseDuration_announcementperiod = Duration_t(5, 0);) The same ip, if the network is disconnected for more than 5 minutes, it cannot be connected again;
In fact, that means 5 seconds @wangzm-R. Refer to lease duration docs here
(rtps.builtin.discovery_config.leaseDuration_announcementperiod = Duration_t(5, 0);) The same ip, if the network is disconnected for more than 5 minutes, it cannot be connected again;
In fact, that means 5 seconds @wangzm-R. Refer to lease duration docs here
Yes, if the subscriber is not disconnected for more than 3 minutes, it will probably be disconnected, but not for more than 5 minutes;
I closing this thread for inactivity according to Fast DDS contributing guidelines. Please, feel free to reopen it if considered