Alex,

Generally cPickle errors when loading summary trees are a result of indexing 
gone bad. 

Here are a couple notes that should save you some work: 
*your bowtie indices and 2bit files do not need to be rebuilt; they are not 
generating these errors;
*converting your SAM files to BAM may provide a short-term solution; Trackster 
SAM support is new and not well tested yet.

Finally, there are many Trackster fixes in galaxy-central, and I believe some 
of them may solve your issues. For SAM datasets, your best bet is to either (a) 
try visualizing the datasets with -central or (b) wait for the upcoming 
(planned for next week) -dist update. If you're still getting errors with the 
new code base, let us know.

Thanks,
J.

> I'm running the latest galaxy-dist and Trackster appears to be generally 
> working since I added a couple of reference genomes and users were able to 
> visualize their data. I just rebuilt all relevant references for the sacCer3 
> (dbkey) genome by concatenating the UCSC chromosome fasta files and building 
> both 2bit file and the bowtie index from the resulting fasta file. The 
> reference genome comes up in the Trackster as I can see the sequence. 
> However, adding a track from the bowtie-mapped data freezes at the "building 
> index" stage and selecting a chromosome in Trackster produces an immediate 
> traceback. Logs are below.
> 
> Thanks,
> 
> Alex
> 
> 10.25.137.177 - - [01/Mar/2012:12:56:50 -0400] "GET 
> /tracks/converted_datasets_state?hda_ldda=hda&dataset_id=0f5bae0d7db33d73&chrom=chrIII
>  HTTP/1.1" 500 - 
> "http://galaxy.hpc.ufl.edu/tracks/browser?dataset_id=0f5bae0d7db33d73&id=9b03f356ffec3bf6";
>  "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/535.11 (KHTML, 
> like Gecko) Chrome/17.0.963.56 Safari/535.11"Error - <type 
> 'exceptions.EOFError'>:URL: 
> http://galaxy.hpc.ufl.edu/tracks/converted_datasets_state?hda_ldda=hda&dataset_id=0f5bae0d7db33d73&chrom=chrIIIFile
>  
> '/galaxy/run/prod/eggs/Paste-1.6-py2.6.egg/paste/exceptions/errormiddleware.py',
>  line 143 in __call__  app_iter = self.application(environ, 
> start_response)File 
> '/galaxy/run/prod/eggs/Paste-1.6-py2.6.egg/paste/recursive.py', line 80 in 
> __call__  return self.application(environ, start_response)File 
> '/galaxy/run/prod/lib/galaxy/web/framework/middleware/remoteuser.py', line 
> 111 in __call__  return self.app( environ, start_response )File 
> '/galaxy/run/prod/eggs/Pas!
 te!
> -1.6-py2.6.egg/paste/httpexceptions.py', line 632 in __call__  return 
> self.application(environ, start_response)File 
> '/galaxy/run/prod/lib/galaxy/web/framework/base.py', line 160 in __call__  
> body = method( trans, **kwargs )File 
> '/galaxy/run/prod/lib/galaxy/web/framework/__init__.py', line 67 in decorator 
>  return simplejson.dumps( func( self, trans, *args, **kwargs ) )File 
> '/galaxy/run/prod/lib/galaxy/web/controllers/tracks.py', line 546 in 
> converted_datasets_state  if not indexer.has_data( chrom ):File 
> '/galaxy/run/prod/lib/galaxy/visualization/tracks/data_providers.py', line 
> 566 in has_data  st = summary_tree_from_file( 
> self.converted_dataset.file_name )File 
> '/galaxy/run/prod/lib/galaxy/visualization/tracks/summary.py', line 92 in 
> summary_tree_from_file  return cPickle.load(open(filename, "rb"))EOFError:
> 
> CGI Variables
> -------------
> 
>  QUERY_STRING: 'hda_ldda=hda&dataset_id=0f5bae0d7db33d73&chrom=chrIII'
> 
> WSGI Variables
> --------------
>  application: <paste.recursive.RecursiveMiddleware object at 0x6323cd0>
>  paste.cookies: (<SimpleCookie: 
> __utma='239163719.1605318534.1329425338.1330006360.1330438487.6' 
> __utmc='239163719' 
> __utmz='239163719.1329425338.1.1.utmcsr=google|utmccn=(organic)|utmcmd=organic|utmctr=(not%20provided)'
>  auth_probe='1' 
> auth_tkt='ZWE0ZmY3MjkxYjdhM2Y0NWRkMjVhNTVkZWUzODBhYzc0ZjRmODRlYm9tQGhwYy51ZmwuZWR1ITEwMDAsMTAwMyFtYWxleDpPbGVrc2FuZHIgTW9za2FsZW5rbw%3D%3D'
>  
> galaxysession='86cf583f63ab6865e8a46aa482c17c1f6ea618d0f448986bf2fc440587db06af6b9d9ac4eccca0fe'>,
>  
> 'galaxysession=86cf583f63ab6865e8a46aa482c17c1f6ea618d0f448986bf2fc440587db06af6b9d9ac4eccca0fe;
>  auth_probe=1; 
> __utma=239163719.1605318534.1329425338.1330006360.1330438487.6; 
> __utmc=239163719; 
> __utmz=239163719.1329425338.1.1.utmcsr=google|utmccn=(organic)|utmcmd=organic|utmctr=(not%20provided);
>  
> auth_tkt=ZWE0ZmY3MjkxYjdhM2Y0NWRkMjVhNTVkZWUzODBhYzc0ZjRmODRlYm9tQGhwYy51ZmwuZWR1ITEwMDAsMTAwMyFtYWxleDpPbGVrc2FuZHIgTW9za2FsZW5rbw%3D%3D')
>  paste.expected_exceptions: [<class 'paste.httpexceptions.HTTPException'>]
>  paste.httpexceptions: <paste.httpexceptions.HTTPExceptionHandler object at 
> 0x631c890>
>  paste.httpserver.thread_pool: <paste.httpserver.ThreadPool object at 
> 0x1314b10>
>  paste.parsed_querystring: ([('hda_ldda', 'hda'), ('dataset_id', 
> '0f5bae0d7db33d73'), ('chrom', 'chrIII')], 
> 'hda_ldda=hda&dataset_id=0f5bae0d7db33d73&chrom=chrIII')
>  paste.recursive.forward: <paste.recursive.Forwarder from />
>  paste.recursive.include: <paste.recursive.Includer from />
>  paste.recursive.include_app_iter: <paste.recursive.IncluderAppIter from />
>  paste.recursive.script_name: ''
>  paste.throw_errors: True
>  webob._parsed_query_vars: (MultiDict([('hda_ldda', 'hda'), ('dataset_id', 
> '0f5bae0d7db33d73'), ('chrom', 'chrIII')]), 
> 'hda_ldda=hda&dataset_id=0f5bae0d7db33d73&chrom=chrIII')
>  wsgi process: 'Multithreaded'
> ------------------------------------------------------------
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