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Ning Sun e8ece029f8 perf: optimize OTLP trace ingestion (#8604 )

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## Refer to a related PR or issue link (optional)

## What's changed and what's your intention?

This pull request improves the OTLP trace-ingestion hot path by
resolving fixed column indexes once per chunk, writing fixed values
directly by index, and replacing per-byte formatting with `hex::encode`.
It raises the default `otlp.trace_ingest_chunk_size` from 128 to 512 and
updates the example configurations, generated configuration reference,
and ingestion README. Explicit chunk-size settings remain unchanged, but
deployments relying on the released default will batch more spans per
chunk.

## PR Checklist
Please convert it to a draft if some of the following conditions are not
met.

- [ ] I have written the necessary rustdoc comments.
- [ ] I have added the necessary unit tests and integration tests.
- [ ] This PR requires documentation updates.
- [ ] API changes are backward compatible.
- [ ] Schema or data changes are backward compatible.

2026-07-22 13:16:19 +00:00

config-docs-template.md

feat: make flow distributed work&tests (#4256 )

2024-07-05 14:46:44 +00:00

config.md

perf: optimize OTLP trace ingestion (#8604 )

2026-07-22 13:16:19 +00:00

datanode.example.toml

feat!: remove configuration of sparse_primary_key_encoding (#8470 )

2026-07-15 09:28:24 +00:00

flownode.example.toml

chore: remove auth in flownode (#8244 )