Hey!
These files are the spilled data from a sort, a hash table, or a cache,
when memory runs short.
If you have some very big files and some 0 sized, I would guess you are
running a Hash Join, and have heavy skew in the distribution of the keys.
Greetings,
Stephan
On Wed, Oct 21, 2015 at 12:5
Hi to all,
what information can I infer from the files contained in the flink-io-xxx
dir?
what does represent each channel file and what does it mean when there are
a lot of 0-size files and some very big files..?
Best,
Flavio