Question about queries and vCPU threads

Can someone confirm if:

  1. Whether you are using Druid or any other platform, a vCPU can only scan a single file at a time
  2. In Druid, multiple vCPU’s that are working on different queries can scan the same file simultaneously without causing any issues.
  1. vCPU has 1 o more cores. each core can have up to 2 threads. Druid uses a thread to scan a segment.

  2. it is true. all segments are immutable so you guarantee consistent reads across multiple threads, vCores

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