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<== Date ==> | <== Thread ==> |
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Subject: | RE: Time interval for Asyn auto reconnect |
From: | Mark Rivers <[email protected]> |
To: | "'Paduan Donadio, Marcio'" <[email protected]>, "[email protected]" <[email protected]> |
Date: | Mon, 17 Jul 2017 20:19:55 +0000 |
Hi Márcio, Your first question is whether it is possible to control when it retries a connection. That is not currently possible. If the port is disconnected then it will try to reconnect each time there is an attempt to
communicate with that port. This is typically when periodically processed records process. There is not a separate asyn thread that is doing the reconnect attempts. Your second question is whether you can reduce the number of error messages. The drvAsynIPPort driver does not print any error messages when ports disconnect and reconnect. asynManager also does not print any
error messages when ports disconnect and reconnect. Both of them simply format error message strings that they pass back to device support when they detect an error. Since the error messages are coming from device support (or some other layer above asyn),
the answer to your questions depends on what device support you are using. There is standard asyn device support that comes with asyn. In asyn R4-27 I made the following change:
Here are some questions for you: - What version of asyn are you using? - What device support are you using? Standard asyn device support, streamDevice, etc.? - Can you send the error messages you are getting so we can tell where they are coming from? Mark From: [email protected] [mailto:[email protected]]
On Behalf Of Paduan Donadio, Marcio Hello. I am using Asyn with IPPort, in auto connect mode, and set it to disconnect if no messages arrive after a timeout. What happens when the connected equipment is switched off is that Asyn waits for
the timeout and than closes the connection. After this, auto connection keep trying to connect until the equipment is switched on again. This is perfectly what I need, but the problem is the frequency that the auto connection is being done. We are receiveing a lot of reconnection messages in the IOC console and all of this are being
logged in a file. Is there a way to configure this to retry a connection only after some minutes? Or even to reduce the amount of messages being sent to the IOC console? Thank you, Márcio Paduan Donadio Control Systems Engineer SLAC National Accelerator Laboratory Advanced Instrumentation for Research Division 2575 Sand Hill Rd Menlo Park CA 94025 Office (650) 926-5007 |