[kotlin/ktor] Variant R2bc fail in all test, except the first.

[joanhey]

Removed unused URLs and updated approach type.

This variant only work with the first bench (db) and later do nothing.

I wanted to delete only the tests than fail, but I left the first one, the db test.
But later I marked as Stripped, because a fw need to return a response good or bad.
And this variant return nothing:

https://tfb-status.techempower.com/unzip/results.2026-02-03-23-09-26-607.zip/results/20260127014105/ktor-r2dbc/json/raw.txt
https://tfb-status.techempower.com/unzip/results.2026-02-03-23-09-26-607.zip/results/20260127014105/ktor-r2dbc/query/raw.txt
https://tfb-status.techempower.com/unzip/results.2026-02-03-23-09-26-607.zip/results/20260127014105/ktor-r2dbc/fortune/raw.txt
...

Return nothing, but the run need the time to bench it !!
A fw need to return a response good or bad, for that I marked it as Stripped.

But @msmith-techempower will decide it.

Ping: @ShreckYe @inemtsev please fix it and add a maintainer in the benchmark_config.json.
Thank you !!

[joanhey]

😒 about the test here !!!

[ShreckYe]

Thanks for notifying. I checked that the ktor-exposed-r2dbc-dsl I maintain works fine, and I have sumitted a PR #10768 to add myself as a maintainer. The R2DBC variant was added by @inemtsev and I only tweaked the GC parameters as I recall.

cc @e5l would you mind adding maintainer info too for the original Ktor benchmark portions?

[ShreckYe]

BTW, I also ran ./tfb --test ktor-r2dbc (commit 4b2a2ee) and it works on my device:

================================================================================
Verification Summary
--------------------------------------------------------------------------------
| ktor-r2dbc
|       db            : PASS
|       json          : PASS
|       query         : PASS
|       update        : PASS
|       fortune       : PASS
|       plaintext     : PASS
================================================================================

[joanhey]

https://tfb-status.techempower.com/unzip/results.2026-02-03-23-09-26-607.zip/ktor-r2dbc

Log:
https://tfb-status.techempower.com/unzip/results.2026-02-03-23-09-26-607.zip/results/20260127014105/ktor-r2dbc/run/ktor-r2dbc.log

Another log from last year:
https://tfb-status.techempower.com/unzip/results.2025-12-08-12-42-44-859.zip/results/20251130235019/ktor-r2dbc/

https://tfb-status.techempower.com/unzip/results.2025-12-08-12-42-44-859.zip/results/20251130235019/ktor-r2dbc/run/ktor-r2dbc.log

[ShreckYe]

FrameworkBenchmarks/frameworks/Kotlin/ktor/ktor-r2dbc/src/main/kotlin/org/jetbrains/ktor/benchmarks/Hello.kt

Line 188 in 4b2a2ee

.maxAcquireTime(Duration.ofSeconds(5))

Taking a brief look, this might be the reason. If the db goes through a short hang the 5 second timeout might cause the app to fail. However, I am not 100% sure this is the only potential reason.

[inemtsev]

I suspect it works locally because concurrency is not high enough to kill it. I will investigate a bit later today.

[joanhey]

Fixed in #10790.

But we need to check it in the next run.