使用AWS Redshift达到数据限制

Question

I am playing around with some SQL code to implement a basic model I've been working on for a company I have recently joined. In doing so, one of my SQL queries reached my data disk limit and it returned an error explaining this. My question is, is my running complicated, large models impeding the company's other applications on Redshift? Does my company get a notification that I have gone over my limit?

EDIT: The SQL query was a number of nested SQL queries. The error code was error: Disk Full code: 1016

Answer 1

First, try running this without running any other queries at the same time:

select
 sum(capacity)/1024 as capacity_gbytes
,sum(used)/1024 as used_gbytes
,(sum(capacity) - sum(used))/1024 as free_gbytes 
from stv_partitions where part_begin=0;

that will show you the amount of free disk space that you have.

My guess is that if your free space amount is fairly large you can be getting that error if you use ORDER BY in a statement that selects a lot of data (subquery or final query, it doesn't matter). In this case, all your data is sent to the leader node causing disk overflow. Rewriting the statement without ORDER BY will help.