I was trying to use these commands to monitor build status with the new memres bitbake change-over, but I could not get these commands to work. It may be that I have the wrong syntax, but I could not find any specific examples in the documentation. [ REPRODUCER ] [build]$ cat ../build-toaster-5/bitbake.lock 29796 0.0.0.0:51957 [build]$ bitbake --status-only --remote-server=127.0.0.1:51957 Traceback (most recent call last): File "/opt/dreyna/toaster_master/poky/bitbake/bin/bitbake", line 48, in <module> cookerdata.CookerConfiguration())) File "/opt/dreyna/toaster_master/poky/bitbake/lib/bb/main.py", line 370, in bitbake_main server_connection, ui_module = setup_bitbake(configParams, configuration) File "/opt/dreyna/toaster_master/poky/bitbake/lib/bb/main.py", line 423, in setup_bitbake configParams.observe_only, configParams.xmlrpctoken) File "/opt/dreyna/toaster_master/poky/bitbake/lib/bb/server/xmlrpcclient.py", line 151, in connectXMLRPC raise e File "/opt/dreyna/toaster_master/poky/bitbake/lib/bb/server/xmlrpcclient.py", line 147, in connectXMLRPC connection = BitBakeXMLRPCServerConnection(host, port, (ip, 0), observer_only, featureset) File "/opt/dreyna/toaster_master/poky/bitbake/lib/bb/server/xmlrpcclient.py", line 89, in __init__ self.events = uievent.BBUIEventQueue(self.connection, self.clientinfo) File "/opt/dreyna/toaster_master/poky/bitbake/lib/bb/ui/uievent.py", line 72, in __init__ raise Exception(errmsg) Exception: Could not register UI event handler. Error: Cooker is busy: running, host 127.0.0.1, port 55744 [build]$ [build]$ bitbake -m --remote-server=0.0.0.0:51957 Traceback (most recent call last): File "/opt/dreyna/toaster_master/poky/bitbake/bin/bitbake", line 48, in <module> cookerdata.CookerConfiguration())) File "/opt/dreyna/toaster_master/poky/bitbake/lib/bb/main.py", line 370, in bitbake_main server_connection, ui_module = setup_bitbake(configParams, configuration) File "/opt/dreyna/toaster_master/poky/bitbake/lib/bb/main.py", line 423, in setup_bitbake configParams.observe_only, configParams.xmlrpctoken) File "/opt/dreyna/toaster_master/poky/bitbake/lib/bb/server/xmlrpcclient.py", line 151, in connectXMLRPC raise e File "/opt/dreyna/toaster_master/poky/bitbake/lib/bb/server/xmlrpcclient.py", line 147, in connectXMLRPC connection = BitBakeXMLRPCServerConnection(host, port, (ip, 0), observer_only, featureset) File "/opt/dreyna/toaster_master/poky/bitbake/lib/bb/server/xmlrpcclient.py", line 89, in __init__ self.events = uievent.BBUIEventQueue(self.connection, self.clientinfo) File "/opt/dreyna/toaster_master/poky/bitbake/lib/bb/ui/uievent.py", line 72, in __init__ raise Exception(errmsg) Exception: Could not register UI event handler. Error: Cooker is busy: running, host 127.0.0.1, port 58285 WARNING: Could not register UI event handler. Error: Cooker is busy: running, host 127.0.0.1, port 58285, retry WARNING: Could not register UI event handler. Error: Cooker is busy: running, host 127.0.0.1, port 58285, retry WARNING: Could not register UI event handler. Error: Cooker is busy: running, host 127.0.0.1, port 58285, retry WARNING: Could not register UI event handler. Error: Cooker is busy: running, host 127.0.0.1, port 58285, retry WARNING: Could not register UI event handler. Error: Cooker is busy: running, host 127.0.0.1, port 58285, retry WARNING: Could not connect to server at 0.0.0.0:51957 (Could not register UI event handler. Error: Cooker is busy: running, host 127.0.0.1, port 58285) [build]$
Regardless of whether there's a bug we clearly need to improve the docs here, so setting the docs flag.
Perhaps we could add a bitbake-selftest for this, too?
The issue is that the process server only accepts one controller connection, see self.controllersock in server/process.py. As such, only one connection to the server operates at a time. There is a similar issue in the xmlrpc backend where new connections cannot be made if the cooker is running (see server/xmlrpcserver.py). It was originally designed to take multiple connections with the idea some could be read only in nature. I think somewhere along teh development, that concept has been lost.