Hallo Hartmut, Something does not add up. The following says we are going to clear binding wx_binding which is bound to database archive_mysql:
root@acer:/home/weewx/bin/user# ./weewxwd_config.py --clear-v2-data > --wx-binding=wx_binding > Using configuration file /home/weewx/weewx.conf > Using database binding 'wx_binding', which is bound to database > 'archive_mysql' > Using database binding 'wd_binding', which is bound to database 'wd_mysql' > The original --clear-v2-data only operates on the binding set by option --wx-binding. But the following says that data in database weewxAlt is going to be cleared. > 'extraTemp1' and 'extraTemp2' data in database 'weewxAlt' from 2013-10-31 > 22:19:00 CET (1383254340) to 2017-03-11 12:50:00 CET (1489233000) (approx > 1227 days) is about to be cleared. > This makes me think that whilst you may have started with the original weewxwd_config you have since modified it. It is very difficult for me to troubleshoot if I don't know exactly what code you are running, without the current code I am guessing as to what is occurring and it is likely we will not find the problem. Could you please attach a copy of the weewxwd_config you ran above. Gary
