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Langfuse

Delayed Ingestion for non v4 SDKs

Degraded Lasted 3h 19m · started · Langfuse's page

Level
confirmed
Worst impact
Degraded
Down Index
20of 100

What to do

  • Check whether your product depends on Langfuse. Check your stack

    Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.
  • Confirm your retries, queues and scheduled jobs caught up after the 3h 19m it lasted.

    Anything that failed between 2026-09-14 02:51 UTC and 2026-09-14 06:10 UTC may need a replay.
  • Subscribe to Langfuse's feed to hear about the next one first. RSS feed

    https://down.guide/feed?provider=langfuse works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from Langfuse 4

  1. investigating

    We currently experience an ingestion delay of old SDKs by 3 hours. This is due to performance issues in our batch job which moves data into the v4 data model ( ). We currently work on improving the batch job. All v4 compatible SDKs are not impacted by this. Upgrading SDKs is recommended.

    provider

  2. investigating

    We considerably increased throughput of the batch job to write data into v4 data model. We are currently catching up processing data.

    provider

  3. monitoring

    We're making consistent progress in our backlog and are currently seeing delays of about 60 minutes.

    provider

  4. resolved

    The incident has been resolved.

    provider

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Corrections

None so far.

Something wrong on this page? Report an error or send us a note. Every fix is listed here.

Questions about DWN-16d4a3bd66

Is Langfuse still down?

No, this incident was resolved 2026-09-14 06:10 UTC. For Langfuse's live state, see https://down.guide/langfuse.

How long did it last?

3h 19m, from 2026-09-14 02:51 UTC to 2026-09-14 06:10 UTC, by the times Langfuse posted.

What caused it?

Langfuse hasn't published a root cause. If it does, it shows here.

Where does this come from?

Langfuse's official status page, https://status.langfuse.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.