Teradata VM Space increased too much

Database

Teradata VM Space increased too much

Hi All,

I have Teradata 15 VM. When i copied it, it took around 18 GB. I connected it with Tableau and there was a join between two tables. Total records of both tables are around 350,000. The query in tableau took around 20 minutes and than VM displayed an error ("Out of disk space") and it crashed.

I noticed that my Hard drive consisting of my VM has less than 1 MB left. VM has taking 43 GB now. my current spool and current temp space is 0 and current Perm is not more than 4 GB.

Can any one tell me how the VM is taking 43 GB now??