Comments (12)
vstadnytskyi-FDA
commented on June 12, 2024
1
It makes no sense. Now it is working. I will try to reproduce the error or maybe indeed I had a typo in the name.
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klauer
commented on June 12, 2024
Can you do a caproto-get -vvv with the image/frameID and let us see how it's being discovered?
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vstadnytskyi-FDA
commented on June 12, 2024
Here is what I am getting on the server side
DEBUG:caproto.bcast:VersionRequest(priority=0, version=13)
DEBUG:caproto.bcast:SearchRequest(name='camera_FDA:image', cid=41928, version=13, reply=5)
DEBUG:caproto.bcast:SearchRequest(name='camera_FDA:frameID', cid=41929, version=13, reply=5)
DEBUG:caproto.bcast:VersionResponse(version=13)
DEBUG:caproto.bcast.search:SearchResponse(port=5064, ip='255.255.255.255', cid=41928, version=13)
DEBUG:caproto.bcast.search:SearchResponse(port=5064, ip='255.255.255.255', cid=41929, version=13)
DEBUG:caproto.bcast:VersionRequest(priority=0, version=13)
DEBUG:caproto.bcast:SearchRequest(name='camera_FDA:image', cid=41928, version=13, reply=5)
DEBUG:caproto.bcast:SearchRequest(name='camera_FDA:frameID', cid=41929, version=13, reply=5)
DEBUG:caproto.bcast:VersionResponse(version=13)
DEBUG:caproto.bcast.search:SearchResponse(port=5064, ip='255.255.255.255', cid=41928, version=13)
DEBUG:caproto.bcast.search:SearchResponse(port=5064, ip='255.255.255.255', cid=41929, version=13)
DEBUG:caproto.bcast:VersionRequest(priority=0, version=13)
DEBUG:caproto.bcast:SearchRequest(name='camera_FDA:image', cid=26009, version=13, reply=5)
DEBUG:caproto.bcast:SearchRequest(name='camera_FDA:frameID', cid=26010, version=13, reply=5)
DEBUG:caproto.bcast:VersionResponse(version=13)
DEBUG:caproto.bcast.search:SearchResponse(port=5064, ip='255.255.255.255', cid=26009, version=13)
DEBUG:caproto.bcast.search:SearchResponse(port=5064, ip='255.255.255.255', cid=26010, version=13)
DEBUG:caproto.bcast:Beacon(version=13, server_port=5064, beacon_id=48, address='0.0.0.0')
DEBUG:caproto.bcast:VersionRequest(priority=0, version=13)
DEBUG:caproto.bcast:SearchRequest(name='camera_FDA:image', cid=41928, version=13, reply=5)
DEBUG:caproto.bcast:SearchRequest(name='camera_FDA:frameID', cid=41929, version=13, reply=5)
DEBUG:caproto.bcast:VersionResponse(version=13)
DEBUG:caproto.bcast.search:SearchResponse(port=5064, ip='255.255.255.255', cid=41928, version=13)
DEBUG:caproto.bcast.search:SearchResponse(port=5064, ip='255.255.255.255', cid=41929, version=13)
DEBUG:caproto.bcast:VersionRequest(priority=0, version=13)
DEBUG:caproto.bcast:SearchRequest(name='camera_FDA:image', cid=41928, version=13, reply=5)
DEBUG:caproto.bcast:SearchRequest(name='camera_FDA:frameID', cid=41929, version=13, reply=5)
DEBUG:caproto.bcast:VersionResponse(version=13)
DEBUG:caproto.bcast.search:SearchResponse(port=5064, ip='255.255.255.255', cid=41928, version=13)
DEBUG:caproto.bcast.search:SearchResponse(port=5064, ip='255.255.255.255', cid=41929, v
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vstadnytskyi-FDA
commented on June 12, 2024
>caproto-get -vvv camera_FDA.image
[D 17:12:54.183 repeater: 221] Another repeater is already running; will not spawn one.
[D 17:12:54.183 client: 59] Registering with the Channel Access repeater.
[D 17:12:54.183 _broadcaster: 94] (1 of 1) RepeaterRegisterRequest(client_address='0.0.0.0')
[D 17:12:54.183 _utils: 535] Netifaces unavailable; using 127.0.0.1 as local address
[D 17:12:54.183 client: 74] Searching for 'camera_FDA.image'....
[D 17:12:54.183 _broadcaster: 94] (1 of 2) VersionRequest(priority=0, version=13)
[D 17:12:54.183 _broadcaster: 92] (2 of 2) SearchRequest(name='camera_FDA.image', cid=6014, version=13, reply=5)
[D 17:12:54.183 client: 88] 0.0.0.0:50222 --->>> 255.255.255.255:5064 2 commands 56B
[D 17:12:54.183 _broadcaster: 136] 0.0.0.0:50222 <<<--- 127.0.0.1:5065 16B RepeaterConfirmResponse(repeater_address='127.0.0.1')
[D 17:12:55.190 client: 88] 0.0.0.0:50222 --->>> 255.255.255.255:5064 1 commands 56B
[D 17:12:56.190 client: 88] 0.0.0.0:50222 --->>> 255.255.255.255:5064 1 commands 56B
Traceback (most recent call last):
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\lib\site-packages\caproto\sync\client.py", line 123, in search
bytes_received, address = udp_sock.recvfrom(ca.MAX_UDP_RECV)
socket.timeout: timed out
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\lib\runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\lib\runpy.py", line 87, in _run_code
exec(code, run_globals)
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\Scripts\caproto-get.exe\__main__.py", line 7, in <module>
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\lib\site-packages\caproto\commandline\get.py", line 172, in main
response = read(pv_name=pv_name,
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\lib\site-packages\caproto\sync\client.py", line 353, in read
chan = make_channel(pv_name, udp_sock, priority, timeout)
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\lib\site-packages\caproto\sync\client.py", line 160, in make_channel
address = search(pv_name, udp_sock, timeout)
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\lib\site-packages\caproto\sync\client.py", line 138, in search
check_timeout()
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\lib\site-packages\caproto\sync\client.py", line 105, in check_timeout
raise CaprotoTimeoutError(f"Timed out while awaiting a response "
caproto._utils.CaprotoTimeoutError: Timed out while awaiting a response from the search for 'camera_FDA.image'. Search requests were sent to this address list: ['255.255.255.255'].
It says " Netifaces unavailable; using 127.0.0.1 as local address"
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klauer
commented on June 12, 2024
I think you may have mistyped the PV name, unless you changed it between the captured outputs you did (camera:image vs camera_FDA.image) - specifically the . vs the :
I'd recommend installing netifaces as it more reliably determines information about your environment and can choose better default settings for broadcast requests and such.
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vstadnytskyi-FDA
commented on June 12, 2024
I think you may have mistyped the PV name, unless you changed it between the captured outputs you did (
camera:imagevscamera_FDA.image) - specifically the.vs the:I'd recommend installing
netifacesas it more reliably determines information about your environment and can choose better default settings for broadcast requests and such.
I think PV name is correct
[I 17:22:00.221 server: 183] PVs available:
camera_FDA:image
camera_FDA:timestamp_lab
camera_FDA:timestamp_camera
camera_FDA:frameID
camera_FDA:exposure_time
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vstadnytskyi-FDA
commented on June 12, 2024
I will close it for now. I am not sure how to reproduce the error. I guess it was indeed wrong name of the PV I was trying to access.
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vstadnytskyi
commented on June 12, 2024
I was able to reproduce the problem.
CAproto server code
from logging import debug,info,warning,error
from caproto.server import pvproperty, PVGroup, SubGroup, ioc_arg_parser, run
from numpy import nan, zeros, int16, random
class Server(PVGroup):
image = pvproperty(value=zeros((3,100,100)).flatten(), dtype = int, max_length = 4000000)
dt = pvproperty(value = 1.0)
@image.startup
async def image(self, instance, async_lib):
while True:
new_arr = random.randint(256, size=(3, 100, 100)).flatten()
await self.image.write(value=new_arr)
await async_lib.library.sleep(self.dt.value)
if __name__ == '__main__':
prefix = 'BITMAP_IMAGE:'
from pdb import pm
from tempfile import gettempdir
import logging
print(gettempdir()+'/{}.log'.format(prefix))
logging.basicConfig(filename=gettempdir()+'/{}.log'.format(prefix),
level=logging.INFO, format="%(asctime)s %(levelname)s: %(message)s")
ioc_options, run_options = ioc_arg_parser(
default_prefix=prefix,
desc='description')
io_server = Server(**ioc_options)
#start async caproto server IO
run(io_server.pvdb, **run_options)
and here is the output from terminal
C:\Users\AR-VR lab W1\Documents\Valentyn\custom_python_libraries\instrumentation\external_screen>python bitmap_image_server.py --list-pvs
C:\Users\AR-VRL~1\AppData\Local\Temp/BITMAP_IMAGE:.log
[I 18:09:46.289 server: 137] Asyncio server starting up...
[I 18:09:46.289 server: 144] Listening on 0.0.0.0:5064
[I 18:09:46.289 server: 181] Server startup complete.
[I 18:09:46.289 server: 183] PVs available:
BITMAP_IMAGE:image
BITMAP_IMAGE:dt
and caproto threading client code
#!/usr/bin/env python3
from caproto.threading.client import Context
prefix='BITMAP_IMAGE:'
ctx = Context()
pv_name = prefix+'dt'
print(f'reading PV: {pv_name}')
dt, = ctx.get_pvs(pv_name)
pv_name = prefix+'image'
print(f'reading PV: {pv_name}')
image, = ctx.get_pvs(pv_name)
and here is terminal output from client
In [1]: run bitmap_image_terminal_client.py
Removing <caproto.threading.client.SharedBroadcaster object at 0x000001EF8573E940> due to [WinError
10054] An existing connection was forcibly closed
by the remote host (10054)
reading PV: BITMAP_IMAGE:dt
reading PV: BITMAP_IMAGE:image
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vstadnytskyi-FDA
commented on June 12, 2024
In [4]: sys.version_info
Out[4]: sys.version_info(major=3, minor=8, micro=8, releaselevel='candidate', serial=1)
In [6]: platform.platform()
Out[6]: 'Windows-10-10.0.19041-SP0'
In [8]: caproto.__version__
Out[8]: '0.8.1'
It seems first I can see PV with caproto-get command but there is an error later.
C:\Users\AR-VR lab W1>caproto-get -vvv BITMAP_IMAGE:image
[D 18:26:46.382 repeater: 221] Another repeater is already running; will not spawn one.
[D 18:26:46.382 client: 59] Registering with the Channel Access repeater.
[D 18:26:46.382 _broadcaster: 94] (1 of 1) RepeaterRegisterRequest(client_address='0.0.0.0')
[D 18:26:46.382 _utils: 535] Netifaces unavailable; using 127.0.0.1 as local address
[D 18:26:46.382 client: 74] Searching for 'BITMAP_IMAGE:image'....
[D 18:26:46.382 _broadcaster: 94] (1 of 2) VersionRequest(priority=0, version=13)
[D 18:26:46.382 _broadcaster: 92] (2 of 2) SearchRequest(name='BITMAP_IMAGE:image', cid=36154, version=13, reply=5)
[D 18:26:46.382 client: 88] 0.0.0.0:65515 --->>> 255.255.255.255:5064 2 commands 56B
[D 18:26:46.382 _broadcaster: 136] 0.0.0.0:65515 <<<--- 127.0.0.1:5065 16B RepeaterConfirmResponse(repeater_address='127.0.0.1')
[D 18:26:46.382 _broadcaster: 136] 0.0.0.0:65515 <<<--- 192.168.44.175:5064 16B VersionResponse(version=13)
[D 18:26:46.382 _broadcaster: 136] 0.0.0.0:65515 <<<--- 192.168.44.175:5064 24B SearchResponse(port=5064, ip='255.255.255.255', cid=36154, version=13)
[D 18:26:46.382 client: 148] Found 'BITMAP_IMAGE:image' at 192.168.44.175:5064
[D 18:26:46.398 _circuit: 166] 192.168.44.175:60061 --->>> 192.168.44.175:5064 16B BITMAP_IMAGE:image VersionRequest(priority=0, version=13)
[D 18:26:46.398 _circuit: 166] 192.168.44.175:60061 --->>> 192.168.44.175:5064 32B HostNameRequest(name='DESKTOP-48QMRE8')
[D 18:26:46.398 _circuit: 166] 192.168.44.175:60061 --->>> 192.168.44.175:5064 32B ClientNameRequest(name='AR-VR lab W1')
[D 18:26:46.398 _circuit: 166] 192.168.44.175:60061 --->>> 192.168.44.175:5064 40B BITMAP_IMAGE:image CreateChanRequest(name='BITMAP_IMAGE:image', cid=0, version=13)
[D 18:26:46.398 client: 202] 192.168.44.175:60061 <<<--- 192.168.44.175:5064 16B VersionResponse(version=13)
[D 18:26:46.398 client: 202] 192.168.44.175:60061 <<<--- 192.168.44.175:5064 16B CreateChFailResponse(cid=0)
Traceback (most recent call last):
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\lib\site-packages\caproto\sync\client.py", line 190, in make_channel
commands = recv(chan.circuit)
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\lib\site-packages\caproto\sync\client.py", line 46, in recv
bytes_received = sockets[circuit].recv(4096)
socket.timeout: timed out
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\lib\runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\lib\runpy.py", line 87, in _run_code
exec(code, run_globals)
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\Scripts\caproto-get.exe\__main__.py", line 7, in <module>
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\lib\site-packages\caproto\commandline\get.py", line 172, in main
response = read(pv_name=pv_name,
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\lib\site-packages\caproto\sync\client.py", line 353, in read
chan = make_channel(pv_name, udp_sock, priority, timeout)
File "C:\Users\AR-VR lab W1\AppData\Local\Programs\Python\Python38\lib\site-packages\caproto\sync\client.py", line 194, in make_channel
raise CaprotoTimeoutError("Timeout while awaiting channel "
caproto._utils.CaprotoTimeoutError: Timeout while awaiting channel creation.
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vstadnytskyi-FDA
commented on June 12, 2024
I just noticed. my terminal client connects to a different caproto server that is running on the same machine but contains different set of PVs (100% different. Very different prefix, so no way I messed up that). When I closed the other server, I was able to connect to my "BITMAP_IMAGE:image" PV without any errors.
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Related Issues (20)
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