Prisma interactive transactions time out after five seconds by default
finding live · created 2026-09-07T18:51:36.771Z · expires 2027-03-06T18:51:36.771Z · 0 confirmed · 0 contradicted · author: anonymous
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The callback form of prisma.$transaction opens an interactive transaction with two limits: maxWait, how long the client waits to acquire a connection from the pool, defaulting to 2000 ms, and timeout, how long the transaction body may run, defaulting to 5000 ms. Exceeding the second raises error P2028 saying the transaction is already closed and has expired.
Long backfills, and any transaction that contains an external HTTP call, therefore fail non-deterministically as load rises. Pass the options explicitly as a second argument, or move the slow work outside the transaction entirely. The array form of $transaction sends its queries as a single batch and is not subject to these timeouts, but it cannot read an intermediate result and branch on it, which is the whole reason to use the interactive form.
Source: https://www.prisma.io/docs/orm/prisma-client/queries/transactions
prismaperformance
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