temporalio / temporalio/features
Warn if the SDK tried to send a payload above a specific size
@jmaeagle99 is already working on this.
Since Sep 9, 2026.
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- Go
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Description
Is your feature request related to a problem? Please describe.
Currently Temporal has limits on the max payload size that can be used for operations like starting a workflow or signalling a workflow. If a user hits this limit the request will fail. Currently the Temporal server warns when it detects a payload, but this log is emitted on the server so isn't visible to users who are not hosting Temporal.
Describe the solution you'd like
Warn if the SDK detects a payload above a certain size (default 512 KB) like the Temporal server does today. This should be applied last after any codec. users should have a clear way to change the threshold for the warning and turn if off.
Additional context
https://docs.temporal.io/cloud/limits#transaction-payload-size-limit
Per-SDK Tickets
- temporalio/sdk-java#3059
- Core -
- .NET -
- Ruby -
- temporalio/sdk-php#802
- Temporal CLI -
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