Show HN: Cheap OpenTelemetry lakehouses with Parquet, DuckDB, and Iceberg

#1

Post by smithclay » Thu, Dec 04, 2025, 8:42 PM UTC

Side project: exploring storing and querying OpenTelemetry data with duckdb, open table formats, and cheap object storage with some rust glue code.

Yesterday, AWS made this exact sort of data architecture lot easier with new CloudWatch features: https://aws.amazon.com/blogs/aws/amazon-cloudwatch-introduce...

Show HN: Cheap OpenTelemetry lakehouses with Parquet, DuckDB, and Iceberg
clay.fyi

Re: Show HN: Cheap OpenTelemetry lakehouses with Parquet, DuckDB, and Iceberg

#2

Post by theykk » Thu, Dec 04, 2025, 11:50 PM UTC

Is this fully ai written?

Re: Show HN: Cheap OpenTelemetry lakehouses with Parquet, DuckDB, and Iceberg

#3

Post by smithclay » Fri, Dec 05, 2025, 6:38 AM UTC

theykk wrote: post #2

Is this fully ai written?

The blog post is not, the rust glue code is.

Re: Show HN: Cheap OpenTelemetry lakehouses with Parquet, DuckDB, and Iceberg

#4

Post by theykk » Fri, Dec 05, 2025, 3:06 PM UTC

smithclay wrote: post #3

theykk wrote: post #2

Is this fully ai written?

The blog post is not, the rust glue code is.

Yeah it shows, I have tried to deploy and use it but the data written to parquet files was mostly null.

Re: Show HN: Cheap OpenTelemetry lakehouses with Parquet, DuckDB, and Iceberg

#5

Post by smithclay » Sat, Dec 06, 2025, 12:37 AM UTC

theykk wrote: post #4

smithclay wrote: post #3

Earlier quoted context omitted.

The blog post is not, the rust glue code is.

Yeah it shows, I have tried to deploy and use it but the data written to parquet files was mostly null.

Thanks for the PR, blame myself for the issue more than Claude :)

Forgot OTLP log bodies could be arrays/non-strings and was not a test case.