pi@raspberrypi:~ $ sudo vzlogger -v 15
[May 31 11:39:16][main] vzlogger v0.7.0 based on heads/master-0-g12e74ddd43 from                                                                                                                                                              Sun, 2 Jun 2019 20:48:14 +0200 started.
[May 31 11:39:16]       Start parsing configuration from /etc/vzlogger.conf
[May 31 11:39:16]       New meter initialized (protocol=d0)
[May 31 11:39:16][chn0] New channel initialized (uuid=...815451 api=volkszaehler                                                                                                                                                              id=1-0:1.8.1)
[May 31 11:39:16][main] log level is 15
[May 31 11:39:16][main] daemon=0, local=0
[May 31 11:39:16]       Process not  daemonized...
[May 31 11:39:16]       Opened logfile /var/log/vzlogger.log
[May 31 11:39:16][push] pushdata_thread created.
[May 31 11:39:16][push] Start push_data_thread
[May 31 11:39:16][]     ===> Start meters
[May 31 11:39:16][mtr0] Meter connection established
[May 31 11:39:16][mtr0] Meter thread started
[May 31 11:39:16][mtr0] Number of readers: 400
[May 31 11:39:16][mtr0] Config.daemon: 0
[May 31 11:39:16][mtr0] Config.local: 0
[May 31 11:39:16][mtr0] Meter is opened. Starting channels.
[May 31 11:39:16][chn0] Logging thread started
[May 31 11:39:16][chn0] Start logging thread for volkszaehler-api. Running as da                                                                                                                                                             emon: no
[May 31 11:39:16][]     Startup done.
[May 31 11:39:16][chn0] Using default volkszaehler api.
[May 31 11:39:16][d0]   sending pullsequenz send (len:5 is:5).
[May 31 11:39:21][push] waitAndSendOnceToAll empty dataMap (timeout?)
[May 31 11:39:26][push] waitAndSendOnceToAll empty dataMap (timeout?)
[May 31 11:39:31][push] waitAndSendOnceToAll empty dataMap (timeout?)
[May 31 11:39:31][d0]   nothing received for more than 10 seconds
[May 31 11:39:31][d0]   read timed out!, context: 1, bytes read: 0, last byte 0xa
[May 31 11:39:31][mtr0] Got 0 new readings from meter:
[May 31 11:39:32][d0]   sending pullsequenz send (len:5 is:5).
[May 31 11:39:36][push] waitAndSendOnceToAll empty dataMap (timeout?)
[May 31 11:39:41][push] waitAndSendOnceToAll empty dataMap (timeout?)
[May 31 11:39:46][push] waitAndSendOnceToAll empty dataMap (timeout?)
[May 31 11:39:47][d0]   nothing received for more than 10 seconds
[May 31 11:39:47][d0]   read timed out!, context: 1, bytes read: 0, last byte 0xa
[May 31 11:39:47][mtr0] Got 0 new readings from meter:
[May 31 11:39:47][mtr0] Next reading in 5 seconds
[May 31 11:39:47][chn0] ==> number of tuples: 0
[May 31 11:39:47][chn0] JSON request body is null. Nothing to send now.
[May 31 11:39:51][push] waitAndSendOnceToAll empty dataMap (timeout?)
[May 31 11:39:52][mtr0] Stopped reading.
[May 31 11:39:52][]     Server stopped.
[May 31 11:39:52][]     Waiting for pushdata_thread to stop...
[May 31 11:39:56][push] waitAndSendOnceToAll empty dataMap (timeout?)
[May 31 11:39:56][push] Stopped push_data_thread
[May 31 11:39:56][]     pushdata_thread stopped
[May 31 11:39:56][]     deleted pushdataList
[May 31 11:39:56][]     Trying to delete curlSessionProvider...
[May 31 11:39:56][]     deleted curlSessionProvider