cecemei opened a new pull request, #19985:
URL: https://github.com/apache/druid/pull/19985
### Description
MSQ workers read input segments through a virtual-storage cache
(SegmentLocalCacheManager/StorageLocation) sized as a fraction of
tmpStorageBytesPerTask. If a single segment exceeds that cache's capacity, it
fails unconditionally (nothing can be evicted to make room), and the resulting
error gives no numbers, just "ensure enough disk space has been allocated." The
actual size/capacity data was already computed for a debug log line but never
surfaced. This PR is diagnostics-only, no behavior change.
<hr>
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- [ ] added integration tests.
- [ ] been tested in a test Druid cluster.
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