Highlight.io incident

Delayed tracs ingest

Minor Resolved View vendor source →

Highlight.io experienced a minor incident on April 22, 2024, lasting 5h 57m. The incident has been resolved; the full update timeline is below.

Started
Apr 22, 2024, 05:29 PM UTC
Resolved
Apr 22, 2024, 11:26 PM UTC
Duration
5h 57m
Detected by Pingoru
Apr 22, 2024, 05:29 PM UTC

Update timeline

  1. investigating Apr 22, 2024, 05:29 PM UTC

    We've just gotten an internal alert for a trace ingest delay of >30 minutes (and increasing). Investigating an increased load on our ClickHouse database.

  2. identified Apr 22, 2024, 10:10 PM UTC

    we have a periodic 'fetch more' query that happens that's causing really high load. That query is causing a lot of load on clickhouse.

  3. identified Apr 22, 2024, 10:10 PM UTC

    We've deployed a workaround now to disable the query with these filters. We've found an issue with our frontend which is increasing the date range for the query.

  4. monitoring Apr 22, 2024, 10:11 PM UTC

    The ingest delay for traces is now ~14 minutes and decreasing as we catch up on the backlog.

  5. resolved Apr 22, 2024, 11:26 PM UTC

    We've now caught up on the backlog and resolved the issue.