ae4aa88945e566f60c950226ab06cbd2ee749789
max
  Fri Jun 5 06:01:46 2015 -0700
removing dropbox-hosted files from parallel downloading. refs #12728

diff --git src/hg/hgTracks/hgTracks.c src/hg/hgTracks/hgTracks.c
index dd6518b..f4afc6c 100644
--- src/hg/hgTracks/hgTracks.c
+++ src/hg/hgTracks/hgTracks.c
@@ -4197,30 +4197,31 @@
     struct track *track;
     boolean done;
     };
 
 static boolean isTrackForParallelLoad(struct track *track)
 /* Is this a track that should be loaded in parallel ? */
 {
 char *bdu = trackDbSetting(track->tdb, "bigDataUrl");
 return (startsWithWord("bigWig"  , track->tdb->type)
      || startsWithWord("bigBed"  , track->tdb->type)
      || startsWithWord("bigGenePred"  , track->tdb->type)
      || startsWithWord("bam"     , track->tdb->type)
      || startsWithWord("halSnake", track->tdb->type)
      || startsWithWord("vcfTabix", track->tdb->type))
      && (bdu && strstr(bdu,"://"))
+     && !(containsStringNoCase(bdu, "dl.dropboxusercontent.com"))
      && (track->subtracks == NULL);
 }
 
 static void findLeavesForParallelLoad(struct track *trackList, struct paraFetchData **ppfdList)
 /* Find leaves of track tree that are remote network resources for parallel-fetch loading */
 {
 struct track *track;
 if (!trackList)
     return;
 for (track = trackList; track != NULL; track = track->next)
     {
 
     if (track->visibility != tvHide)
 	{
 	if (isTrackForParallelLoad(track))
@@ -4530,30 +4531,31 @@
 int pfdListCount = 0;
 pthread_t *threads = NULL;
 if (ptMax > 0)     // parallelFetch.threads=0 to disable parallel fetch
     {
     findLeavesForParallelLoad(trackList, &pfdList);
     pfdListCount = slCount(pfdList);
     /* launch parallel threads */
     ptMax = min(ptMax, pfdListCount);
     if (ptMax > 0)
 	{
 	AllocArray(threads, ptMax);
 	/* Create threads */
 	int pt;
 	for (pt = 0; pt < ptMax; ++pt)
 	    {
+            printf("debug: Starting parallel loading thread<br>");
 	    int rc = pthread_create(&threads[pt], NULL, remoteParallelLoad, &threads[pt]);
 	    if (rc)
 		{
 		errAbort("Unexpected error %d from pthread_create(): %s",rc,strerror(rc));
 		}
 	    }
 	}
     }
 
 /* load regular tracks */
 for (track = trackList; track != NULL; track = track->next)
     {
     if (track->visibility != tvHide)
 	{
 	if (!track->parallelLoading)