Merge branch 'dask_utils_error_debug' into 'master'

changed dask version in requiremet.txt

See merge request !147

requirements.txt

@@ -19,7 +19,7 @@ opencensus-ext-ocagent
 opencensus-ext-logging
 
 # for chunking feature
-dask[distributed]==2021.4.1
+dask[distributed]==2021.6.2
 fsspec
 
 --extra-index-url \