There seems to be a bug related to retrieving attributes which content is fairly long. This dataset for example : http://thredds.aodn.org.au/thredds/catalog/IMOS/ANMN/NSW/PH100/Velocity/catalog.html?dataset=IMOS/ANMN/NSW/PH100/Velocity/IMOS_ANMN-NSW_AETVZ_20131127T230000Z_PH100_FV01_PH100-1311-Workhorse-ADCP-109.5_END-20140306T010000Z_C-20140521T053527Z.nc When processed on filesystem with ncParse doesn't show the global attribute quality_control_log while ncdump or ncks does...