#528 Group.command_inout fails between server restart

[Tiago Coutinho]

Hello,

It seems the first Group.command_inout on a client after a server restart always fails with a CommunicationFailed exception.

Here is how to reproduce the problem:

0. compile the program file attached to this bug report:
c++ -o tg_group_test tg_group_test.cpp -ltango
1. start TangoTest
2. execute the tg_group_test program in another console
3. restart TangoTest server
4. Press enter in the tg_group_test console
5. a communication failed occurs

If we do the same with a DeviceProxy instead of a group the problem doesn't occur.

Tested with tango 7.2.6 and 8.0.5

[Tiago Coutinho]

test program to reproduce the bug

[Thomas Rogucki]

Fixed. Will be available in Tango 8.1.0.

Problem in fact does not concern the Group interface. It roots in Connection::command_inout_reply() with timeout. There was a missing re-connection mechanism in case of server restart.

[Emmanuel Taurel]

Bug fix available in Tango 8.0.5 patch file p805_1.diff available on pink site

[Emmanuel Taurel]

Fixed in Tango 8.1.2