Alert: ignore long locked inactive cache entry

[Sergey A. Osokin]

Hi,

thanks for the report.

On Thu, Apr 08, 2021 at 11:37:19AM -0400, anish10dec wrote:
> Hi Team,
> 
> Intermittently there are multiple below errors reported in error.log file.
> 
> [alert] 41456#41456: ignore long locked inactive cache entry
> efcd5613750302a2657fca63c07fc777, count:1
> 
> This comes  momentarily with a spike of 50-90 K such errors in a minute time
> span. 
> 
> During this period server load and cpu utilization increases to Maximum
> dropping all the traffic with 0% Idle CPU and Load rising to more than 100.
> 
> This happens for 5 min after which server comes back into normal state.
> 
> Please help What causes this alert and how to avoid this scenario

Could you please share `nginx -V' output.  There was a fix long time ago,
with 1.1.16 for a similar issue.

Thank you.

--
Sergey Osokin