Code

after fetching, data must be reduced to at least chart resolution, else some data...
authoroetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Thu, 24 Nov 2011 14:26:30 +0000 (14:26 +0000)
committeroetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Thu, 24 Nov 2011 14:26:30 +0000 (14:26 +0000)
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@2221 a5681a0c-68f1-0310-ab6d-d61299d08faa

program/src/rrd_graph.c

index d7781f6dec454edd7b6b9d19a8784d6801c1713d..3f8ee1bff143af2dc004eb0e83ffaac4200b8e9f 100644 (file)
@@ -896,11 +896,15 @@ int data_fetch(
                                 &im->gdes[i].ds_cnt,
                                 &im->gdes[i].ds_namv,
                                 &im->gdes[i].data)) == -1) {
-                    return -1;
-                }
+                    return -1;                      
+                }               
             }
             im->gdes[i].data_first = 1;
 
+            /* must reduce to at least im->step
+               otherwhise we end up with more data than we can handle in the 
+               chart and visibility of data will be random */            
+            im->gdes[i].step = max(im->gdes[i].step,im->step);
             if (ft_step < im->gdes[i].step) {
                 reduce_data(im->gdes[i].cf_reduce,
                             ft_step,