[Info-ingres] Number of connected sessions

Martin Bowes martin.bowes at ndph.ox.ac.uk
Wed Jan 23 10:28:36 UTC 2019


Hi All,

We have a system which can rapidly escalate its connection count via web based connections and is prone to exceeding the connection limit.

What I would like is a testable connection counter that is publicly accessible.

I don't want to give apache permission to access the server_sessions table in imadb. Furthermore, I suspect that having an ingres process regularly refresh a table with a count would simply impose a major bottleneck in the system.

I suspect the server keeps some internal counter of its connected sessions, would it be possible to expose that information in dbmsinfo()? That way I can install a soft connection limit and thus restrict to priority processes when the server gets loaded.

Marty

PS. My completely unreasonable boss made me ask this question.




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