Hi all,

We're running Flink on a standalone five node cluster. The /tmp/ directory 
keeps filling with directories starting with blobstore--*. These directories 
are very large (approx 1 GB) and fill up the space very quickly and the jobs 
fail with a No space left of device error. The files in these directories 
appear to be some form of binary representation of the jobs that are running on 
the cluster.
What are these files and how do I take care of cleaning them so they don't fill 
up /tmp/ causing jobs to fail?
Flink version: 1.4.2

Thanks,
Harshith

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