Details
-
Improvement
-
Status: Closed
-
Major
-
Resolution: Fixed
-
None
-
None
-
None
-
Reviewed
Description
There are a lot of common file names used in HDFS, mainly created by mapreduce, such as file names starting with "part". Reusing byte[] corresponding to these recurring file names will save significant heap space used for storing the file names in millions of INodeFile objects.