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The server maintains inactive TCP connections [CORE6341] #6582

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firebird-automations opened this issue Jun 23, 2020 · 3 comments
Open

The server maintains inactive TCP connections [CORE6341] #6582

firebird-automations opened this issue Jun 23, 2020 · 3 comments

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@firebird-automations
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Submitted by: Jaro (jaro)

I have a very simple application that:
- connects to the Firebird server,
- execute the SELECT COUNT (*) FROM MON $ ATTACHMENTS command
- closes the connection

1) I run the first copy of the application - result 1
2) I run the second copy of the application - result 2
3) I close the second copy of the application - result 1
4) I run the second copy of the application - result 2

Everything works fine.

5) restart router - I close the connection by force
6) I close all copies of the application
7) I run the first copy of the application - result 3 - ???

The server maintains inactive TCP connections.
It takes many hours and does not depend on the client-side application.
When does the server delete inactive connections?
Any solution without restarting the server?

I saw a similar problem on Firebird Tracker - CORE3002 12 / May / 10 but UNRESOLVED.

@firebird-automations
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Commented by: @mrotteveel

You put 2.5.9 in affected versions, but your environment lists version 2.5.4. Which version are you really using?

@firebird-automations
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Commented by: @dyemanov

And it's worth trying with FB3, given that v2.5 is no longer supported.

@firebird-automations
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Commented by: Jaro (jaro)

My version 2.5.4

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