Hi, Adam An error arises, when I call json rpc server by AsyncoreReactor. And I can call json rpc server successfully by a simple TCPReactor write by myself. how can I call json Rpc by AsyncoreReactor correctly?
address = ("127.0.0.1", 4044) clientsReactor = asyncoreReactor.AsyncoreReactor() reactor = TestClientWrapper(clientsReactor.createClient(address)) jsonAPI = JsonRpcClient(reactor) jsonAPI.connect() jsonAPI.callMethod("Host.ping", [], 1, 10)
Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib64/python2.7/site-packages/yajsonrpc/client.py", line 39, in callMethod resp = self._transport.recv(timeout=timeout) File "/usr/share/vdsm/tests/jsonRpcUtils.py", line 100, in recv return self._queue.get(timeout=timeout)[1] File "/usr/lib64/python2.7/Queue.py", line 176, in get raise Empty Queue.Empty
On Thu, Feb 21, 2013 at 06:10:35PM +0800, ShaoHe Feng wrote:
Hi, Adam An error arises, when I call json rpc server by AsyncoreReactor. And I can call json rpc server successfully by a simple TCPReactor write by myself. how can I call json Rpc by AsyncoreReactor correctly?
address = ("127.0.0.1", 4044) clientsReactor = asyncoreReactor.AsyncoreReactor() reactor = TestClientWrapper(clientsReactor.createClient(address)) jsonAPI = JsonRpcClient(reactor) jsonAPI.connect() jsonAPI.callMethod("Host.ping", [], 1, 10)
Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib64/python2.7/site-packages/yajsonrpc/client.py", line 39, in callMethod resp = self._transport.recv(timeout=timeout) File "/usr/share/vdsm/tests/jsonRpcUtils.py", line 100, in recv return self._queue.get(timeout=timeout)[1] File "/usr/lib64/python2.7/Queue.py", line 176, in get raise Empty Queue.Empty
Sheldon,
You and I resolved this problem but I will answer it here as well for the benefit of everyone.
When using the Asyncore framework, there is a reactor on the server but also on the client. Asyncore is multi-threaded and an event loop must be started for the client reactor in order to process the server responses. See tests/jsonRpcUtils.py:43 for the call to initialize the event loop thread in the client reactor.
On 02/26/2013 12:10 AM, Adam Litke wrote:
On Thu, Feb 21, 2013 at 06:10:35PM +0800, ShaoHe Feng wrote:
Hi, Adam An error arises, when I call json rpc server by AsyncoreReactor. And I can call json rpc server successfully by a simple TCPReactor write by myself. how can I call json Rpc by AsyncoreReactor correctly?
address = ("127.0.0.1", 4044) clientsReactor = asyncoreReactor.AsyncoreReactor() reactor = TestClientWrapper(clientsReactor.createClient(address)) jsonAPI = JsonRpcClient(reactor) jsonAPI.connect() jsonAPI.callMethod("Host.ping", [], 1, 10)
Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib64/python2.7/site-packages/yajsonrpc/client.py", line 39, in callMethod resp = self._transport.recv(timeout=timeout) File "/usr/share/vdsm/tests/jsonRpcUtils.py", line 100, in recv return self._queue.get(timeout=timeout)[1] File "/usr/lib64/python2.7/Queue.py", line 176, in get raise Empty Queue.Empty
Sheldon,
You and I resolved this problem but I will answer it here as well for the benefit of everyone.
When using the Asyncore framework, there is a reactor on the server but also on the client. Asyncore is multi-threaded and an event loop must be started for the client reactor in order to process the server responses. See tests/jsonRpcUtils.py:43 for the call to initialize the event loop thread in the client reactor.
Yes. Thank you, Adam. Now I can use the Asycore client reactor successfully. But the jsonRpcUtils was in tests path. How about move it to yajson or some other package. Now, if I want to import TestClientWrapper from this module, I should set the PYTHONPATH=/usr/share/vdsm/tests/ And without setting PYTHONPATH, I have added a __init__.py in my patch to make the /usr/share/vdsm/tests/ as a python sitelib. http://gerrit.ovirt.org/#/c/11283/
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