What is causing a delay in a basic query using R and sparkplyr?

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There can be several reasons for a delay in a basic query using R and sparkplyr. Some common reasons are:

1. Data size: If the data size is huge, the query may take a lot of time to execute.

2. Cluster configuration: If the cluster configuration is not optimal, the query may take longer than expected.

3. Data skewness: If the data is skewed, some partitions may have more data than others, causing delays.

4. Resource allocation: If the resources are not allocated properly, the query may take longer than usual.

5. Execution plan: If the execution plan of the query is not optimal, the query may take more time to execute.

6. Network latency: If the network latency is high, it may cause a delay in fetching the data from the cluster.

7. Hardware issues: If there are any hardware issues with the server or the network, it may cause a delay in the query execution.