log import hangs in in non deterministic way about matomo-log-analytics HOT 1 OPEN

Logs import summary
-------------------

    133 requests imported successfully
    0 requests were downloads
    48 requests ignored:
        0 HTTP errors
        0 HTTP redirects
        6 invalid log lines
        0 requests did not match any known site
        0 requests did not match any --hostname
        42 requests done by bots, search engines...
        0 requests to static resources (css, js, images, ico, ttf...)
        0 requests to file downloads did not match any --download-extensions

Website import summary
----------------------

    133 requests imported to 1 sites
        1 sites already existed
        0 sites were created:

    0 distinct hostnames did not match any existing site:



Performance summary
-------------------

    Total time: 0 seconds
    Requests imported per second: 722.0 requests per second

Processing your log data
------------------------

    In order for your logs to be processed by Piwik, you may need to run the following command:
     ./console core:archive --force-all-websites --force-all-periods=315576000 --force-date-last-n=1000 --url='http://apache.piwik'


Exception in thread Thread-2 (most likely raised during interpreter shutdown):
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
  File "/usr/lib/python2.7/threading.py", line 763, in run
  File "./import_logs.py", line 1458, in _run_bulk
  File "/usr/lib/python2.7/Queue.py", line 168, in get
  File "/usr/lib/python2.7/threading.py", line 332, in wait
<type 'exceptions.TypeError'>: 'NoneType' object is not callable

./import_logs.py --url=http://apache.piwik ../../plugins/VisitorGenerator/data/access.log  --idsite=1 --replay-tracking

or

./import_logs.py --url=http://apache.piwik ../../plugins/VisitorGenerator/data/access.log  --idsite=1 

but not with 

./import_logs.py --url=http://apache.piwik ../../plugins/VisitorGenerator/data/campaign.log  --idsite=1