Limits
Fauna is a shared, globally-accessible database service. To optimize query performance and share resources in a fair manner, the following limits are in place:
| Constraint | Limit |
|---|---|
Document size |
8MB/document |
Query size |
16MB/query |
Transaction size |
16MB/transaction |
GraphQL schema size |
10MB |
12,000/transaction |
|
Default query execution time (when no timeout is specified) |
2 minutes |
Maximum query execution time (even when timeout is specified) |
10 minutes |
Concurrent index builds |
24 per account (not per database) Index builds, for collections with more than 128 documents, are handled by a background task. The limit prevents an excessive number of indexes that must be built simultaneously. Whenever the limit would be exceeded, an HTTP 429 error occurs and the transaction is aborted. |
Index entries |
64k bytes An index entry includes its |
| As a document database, Fauna is not currently a good storage solution for arbitrary binary blob data, such as images, PDFs, etc. |
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