deepseek-v4-quant/memory/2026-04-22-bug-fix.md

Session: 2026-04-22 22:47:01 UTC

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user: A new session was started via /new or /reset. Run your Session Startup sequence - read the required files before responding to the user. Then greet the user in your configured persona, if one is provided. Be yourself - use your defined voice, mannerisms, and mood. Keep it to 1-3 sentences and ask what they want to do. If the runtime model differs from default_model in the system prompt, mention the default model. Do not mention internal steps, files, tools, or reasoning. Current time: Wednesday, April 22nd, 2026 - 2:11 AM (UTC) / 2026-04-22 02:11 UTC assistant: Hey Mike. Vinny here 🔧 — 2 AM your time, hopefully you're not debugging something on fire. What's the move? user: Sender (untrusted metadata):

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  "id": "openclaw-control-ui"
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[Wed 2026-04-22 02:15 UTC] Head on over to the project at /home/openclaw/dev/api.vultrinference.com

I got this error in sentry

Doctrine\DBAL\Exception\UniqueConstraintViolationException: An exception occurred while executing a query: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '96554507-2026-04-01-moonshotai/Kimi-K2.6' for key 'model_usage.lookup'

The trace is

• /src/ExternalAPI/KubeAI/API.php in App\ExternalAPI\KubeAI\API::{closure:App\ExternalAPI\KubeAI\API::trackStreamingUsage():847} line 861.
• /src/Helper/UsageHelper.php in App\Helper\UsageHelper::incrementTokensForSubscriptionByModel line 100.

I guess the issue is the number just needs to be incremented by 1? Maybe add a while loop that generates a key and exits the while loop when the free key was found? assistant: Race condition — two concurrent streaming requests for the same SUBID/period/model, both find no existing row, both try to insert. Classic.

Let me check the entity for the constraint details real quick: assistant: The lookup unique constraint is at the DB level (not in the ORM annotation) — composite on SUBID, period, model. Classic race condition: two streaming requests finish at the same time, both see no row, both insert.

Your while-loop idea is right. Wrap the insert in a try/catch for the unique constraint violation, and on collision, re-fetch and update instead. Same pattern should apply to DailyUsage too since it likely has the same issue. assistant: Here's what I did — both ModelUsage and DailyUsage had the same race condition (concurrent streaming completions both inserting), so I fixed both:

The pattern: A while(true) loop that:

1. Looks for an existing row
2. If not found → insert + flush inside a try/catch(UniqueConstraintViolationException)
3. On collision → detach() the failed entity and continue the loop, which re-fetches and takes the update path
4. If found → update + break

The key thing is $entityManager->detach() on the collision — without it, Doctrine still tracks the failed entity and the next flush would re-try the insert. Detaching clears it so the re-fetch gives you a clean managed entity to update.

The original single $entityManager->flush() at the end that handled both ModelUsage and DailyUsage is now split — ModelUsage flushes inside its loop, DailyUsage flushes inside its loop + a final flush for the update case. Same net effect.

Want me to verify the full file looks right? user: Sender (untrusted metadata):

{
  "label": "openclaw-control-ui",
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[Wed 2026-04-22 02:17 UTC] yeah, i comitted and pushed. havent tested, so if you want to give it another look before i deploy, go ahead assistant: Looks solid. One thing I'll flag — there's a minor redundancy: when the ModelUsage loop takes the update path (existing row found), it sets the fields and breaks, then the DailyUsage loop runs, and finally the trailing $entityManager->flush() at line 121 fires. That flush is fine — it persists the ModelUsage update plus whatever DailyUsage did.

But if the ModelUsage insert succeeds (the try path), that already flushed. Then the DailyUsage loop runs and either flushes inside its own try (insert path) or relies on the trailing flush (update path). So the trailing flush only actually does work when both loops took the update path or when DailyUsage took the update path. No double-insert risk — just a harmless extra flush call when there's nothing dirty. Clean.

Ship it. 🔧 user: Sender (untrusted metadata):

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[Wed 2026-04-22 02:23 UTC] Ok I shipped it. You still there? You also run through that software assistant: Yeah I'm here. What do you want me to run through — you want me to poke around the codebase, or you got another issue to look at? user: Sender (untrusted metadata):

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[Wed 2026-04-22 02:26 UTC] How does the while loop escape? assistant: Good question — two exit paths:

1. Insert succeeds: flush() doesn't throw → break after the try block
2. Row exists (update path): sets the fields → break after the else block

The only time it loops is when the UniqueConstraintViolationException catches — that's the race condition case. It detaches the failed entity, continues, re-fetches (now finds the row the other request inserted), and takes the update path → break.

It can't infinite loop because once a row exists in the DB, findOneBy will always find it, and the update path always breaks. The collision can only happen once per key — after that the row's there for good.