[TYPO3-Solr] Scheduler task does not end

[Michael Stein]

Hi there,
I'm running typo3 6.2.3 with solr 3.0.0-dev from git.
Downloaded 23.6.2014.
My indexe-queue-worker is running serveral time and than, at some unknown 
condition it does not end.
Is there a way to debug that?

Michael