On 01/11/17 13:16, Vlad Khorsun wrote:
>     Hi all,
>
> I tried it on Windows and here is my observations:
> - SuperServer have no problem
>
> - for Classic and SuperClassic problem is confirmed
>     of course, operations with another DB's are not affected
>
> - the reason is that attachment doing garbage collection doesn't react on 
> AST's:
>     yes, it calls JRD_reshedule and checkouts from engine, but concurrent 
> thread (with AST pending) doesn't get control
>     when i changed THREAD_YIELD() by THREAD_SLEEP(0) - it changes nothing
>     when i changed THREAD_YIELD() by THREAD_SLEEP(1) - it fixed the issue
>
> I'm not sure it is best possible fix. I don't know if it helps on Linux.
> Opinions ?


Vlad, I can not reproduce initial issue in master branch on linux.
GC does not affect ability to connect to database and execute simple 
queries.


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