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Data size limit and timeout specifications

Size limits

Table 1.

Type

Limit

Dataset ingested to data.world

1 GB

Metadata management datasets

no limit

Project

1 GB

Derived dataset

1 GB

Virtual dataset (hosted on a remote server)

Size not limited by data.world

Size of a file in a dataset

1 GB

Number of files in a dataset

250

Number of columns in a table

limited by file size

Number of columns previewed in a table

50

Number of columns previewed in query results

500

Number of rows in a table

limited by file size

Number of rows previewed in query results

10,000

Rate limiting: Number of burst streams API calls

5 in the first second or after a 5 second idle period, then 1 per second

Size of a record streamed

1 MiB

Size of a request streamed

1 GB

Number of JSON objects in a stream

1 GB divided by the avg record size



Timeouts

Table 2.

Type of timeout

Limit

Query timeout before first byte is transmitted

1 minute

(upgrade to 5 minutes available upon request)

Query timeout before last byte is transmitted

60 minutes

Data upload timeout

None: As long as packets continue to be passed the connection will stay open