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st-one-io / node-red-contrib-s7

A Node-RED node to interact with Siemens S7 PLCs
GNU General Public License v3.0
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1.6.0 @ node-red v0.20.5 in docker container: extensive writing to log file #38

Closed MaFoB closed 5 years ago

MaFoB commented 5 years ago

If I add just one variable to be read from the S7 an extensive logging to file starts with more than 20 lines per second such as {"log":"[1542040,726948427 172.23.156.112 S2] SendReadPacket called\n","stream":"stdout","time":"2019-04-16T14:27:08.550057364Z"} {"log":"[1542040,727169084 172.23.156.112 S2] Sending Read Packet\n","stream":"stdout","time":"2019-04-16T14:27:08.550175097Z"} see file attached. node-red-contrib-s7_1.6.0_logging.txt => Disk full and system blocked soon. Can you help?

gfcittolin commented 5 years ago

The official Node-RED container starts with Node-RED in verbose mode, which in turn causes the massive amount of logs. You can manually disable the node's logging on the "s7 endpoint" config node. There's a debug option there that you can set to "No", and the logs should then stop.

MaFoB commented 5 years ago

Thanks for your quick response. - "Debug Off" works indeed :) (However, [error]s are still logged.)

2019-04-17_node-s7_Debug_Off Issue already mentioned here: Originally posted by @gfcittolin in https://github.com/netsmarttech/node-red-contrib-s7/issues/12#issuecomment-330108836

Our problem still is "... writing to log file": In our node-red docker implementation all command line output is also written to a file. Well, we have to solve this docker specific part ourselves. Just would be glad if you have any advice...

gfcittolin commented 5 years ago

This options just en/disable the logging of the library we use to communicate with (since it currently cannot integrate with a logging framework). For all other logging, you should be able to control that globally on your settings.js of Node-RED.

Regarding Docker logging, it all depends how you've set-up your environment, but a quick look at the Docker Docs (here and here) shows that you can configure the default logging driver to do log rotation automatically. Maybe that can help.

MaFoB commented 5 years ago

Yes, it does help us docker freshers a lot. Thanks !