A reader has dead letters

Weik.io 2026.2

A reader has events it couldn't handle after its last retry, and weikio deadletters list shows each with the reason it failed.

On this page

Kind	Severity	Who sees it
`reader-dead-letters`	Warning	Everyone who can read the deployment

What it means#

A reader has events it couldn’t handle after its last retry, kept as dead letters with the reason each failed.

The reader has at least one dead letter.

List the reader’s dead letters:

Terminal

$ weikio deadletters list --env <environment> --integration <project>/<integration>

Print one with its event and the reason it failed:

Terminal

$ weikio deadletters show --env <environment> --seq <seq>

Fix the cause, such as a route bug or a system that refused the event, then send the dead letters again to the integration they failed in:

Terminal

$ weikio deadletters resend --env <environment> --integration <project>/<integration> --all

Discard the ones that shouldn’t be handled, and the problem clears when the reader has no dead letters.