1. Pipes and Filters intermediate

    A logistics platform processes tracking events through validation, enrichment, deduplication, state transition and fan-out. What does the pipes-and-filters shape buy, and where does it break down?

    2 min answer delhiverypipelinestagesbackpressure
  2. Pipes and Filters intermediate

    A nightly recommendation pipeline has one stage consuming 80% of the wall-clock time. How do you diagnose it and what are your options?

    3 min answer pipelinesbatchspotifyperformance
  3. Pipes and Filters intermediate

    A team splits a single batch job into seven stages connected by queues, so each stage can scale and be retried independently. Throughput improves. What have they given up, and when does that bill arrive?

    2 min answer pipes and filtersqueueslatencyoperability
  4. Pipes and Filters intermediate

    A video platform's transcoding pipeline is a sequence of independent processing stages. What does the pipes-and-filters structure buy, and what must be added for it to work at scale?

    2 min answer pipes-and-filterspipelinestagesbackpressure
  5. Pipes and Filters intermediate Multiple choice

    A web-indexing pipeline of the kind Baidu operates has six queue-connected stages. Roughly one document in two million makes the parse stage abort; the queue redelivers it, so that partition crash-loops and 40 minutes of documents sit behind it while the other partitions drain normally. Review the pipeline. Which single change would you make first?

    3 min answer pipes-and-filterspoison-messagedead-letterhead-of-line-blocking