> On 10 Apr 2024, at 21:48, Parag Paul <parag.p...@gmail.com> wrote:
> 
> Yes, the probability of this happening is astronomical, but in production 
> with 128 core servers with 7000 max_connections, with petabyte scale data, 
> this did repro 2 times in the last month. We had to move to a local approach 
> to manager our ratelimiting counters. 

FWIW we observed such failure on this [0] LWLock two times too. Both cases were 
recent (February).
We have ~15k clusters with 8MTPS, so it’s kind of infrequent, but not 
astronomic. We decided to remove that lock.


Best regards, Andrey Borodin.

[0] 
https://github.com/munakoiso/logerrors/pull/25/files#diff-f8903c463a191f399b3e84c815ed6dc60adbbfc0fb0b2db490be1e58dc692146L85

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