Don't spawn a new job to update links if there are no links to update. This is really common and the jobs don't do any work:
2013-12-02 23:46:30 mw1001 itwiki: cirrusSearchLinksUpdate Kortessem addedLinks=array(0) removedLinks=array(0) primary= STARTING
2013-12-02 23:46:30 mw1001 itwiki: cirrusSearchLinksUpdate Kortessem addedLinks=array(0) removedLinks=array(0) primary= t=0 good
2013-12-02 23:46:30 mw1007 nlwikivoyage: cirrusSearchLinksUpdate Kortessem addedLinks=array(0) removedLinks=array(0) primary= STARTING
2013-12-02 23:46:30 mw1007 nlwikivoyage: cirrusSearchLinksUpdate Kortessem addedLinks=array(0) removedLinks=array(0) primary= t=0 good
2013-12-02 23:46:31 mw1003 itwiki: cirrusSearchLinksUpdate Zoersel addedLinks=array(0) removedLinks=array(0) primary= STARTING
2013-12-02 23:46:31 mw1003 itwiki: cirrusSearchLinksUpdate Zoersel addedLinks=array(0) removedLinks=array(0) primary= t=0 good
2013-12-02 23:46:31 mw1003 itwiki: cirrusSearchLinksUpdate Lista_degli_artisti_musicali_italiani_per_stime_di_vendita addedLinks=array(0) removedLinks=array(0) primary= STARTING
2013-12-02 23:46:31 mw1003 itwiki: cirrusSearchLinksUpdate Lista_degli_artisti_musicali_italiani_per_stime_di_vendita addedLinks=array(0) removedLinks=array(0) primary= t=0 good
2013-12-02 23:46:31 mw1007 nlwikivoyage: cirrusSearchLinksUpdate Wellen addedLinks=array(0) removedLinks=array(0) primary= STARTING
2013-12-02 23:46:31 mw1007 nlwikivoyage: cirrusSearchLinksUpdate Wellen addedLinks=array(0) removedLinks=array(0) primary= t=0 good
2013-12-02 23:46:34 mw1001 itwiki: cirrusSearchLinksUpdate Fading_Like_a_Flower_(Every_Time_You_Leave) addedLinks=array(0) removedLinks=array(0) primary= STARTING
2013-12-02 23:46:34 mw1001 itwiki: cirrusSearchLinksUpdate Fading_Like_a_Flower_(Every_Time_You_Leave) addedLinks=array(0) removedLinks=array(0) primary= t=0 good
2013-12-02 23:46:37 mw1005 itwiki: cirrusSearchLinksUpdate Fagioli/Mi_piaccion_le_sbarbine addedLinks=array(0) removedLinks=array(0) primary= STARTING
2013-12-02 23:46:37 mw1005 itwiki: cirrusSearchLinksUpdate Fagioli/Mi_piaccion_le_sbarbine addedLinks=array(0) removedLinks=array(0) primary= t=0 good
Version: unspecified
Severity: normal