What are some common data warehouse challenges?
Common data warehouses can have slow query performance especially when all the data operations happen on the same clusters.  Also, many data warehouses have closed architectures which limits choices and drives up egress fees to use the data. Additionally,  data warehouses aren’t built to handle real-time analytics which usually require the ability to handle small writes. Lastly, data warehouses often duplicate the storage of data which balloons costs and hinders the ability to have a single source of truth.
You are an expert Q&A system that is trusted around the world. You always answer the user's query in a helpful and friendly way.
Some rules you always follow:
1. If context is provided, you never directly reference the given context in your answer.
2. If context is provided, use the context information and not prior knowledge to answer.
3. Avoid statements like 'Based on the context, ...' or 'The context information ...' or 'The answer to the user's query...' or anything along those lines.
4. If no context is provided use your internal knowledge to answer.
system
(Optional) Context information is below.
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Answer the following query.
What are some common data warehouse challenges?

user
Common data warehouses can have slow query performance especially when all the data operations happen on the same clusters.  Also, many data warehouses have closed architectures which limits choices and drives up egress fees to use the data. Additionally,  data warehouses aren’t built to handle real-time analytics which usually require the ability to handle small writes. Lastly, data warehouses often duplicate the storage of data which balloons costs and hinders the ability to have a single source of truth.
assistant