Обсуждение: backend connection lost

Redhat 5.2/6.0 PostgreSQL 6.5
With both an ODBC application & a local native libpq application, when the
app is idle for a long period of time, the connection to the backend gets
lost. Is there some kind of postmaster setting to keep alive? Other ideas?

Ken

"Ken J. Wright" <ken@ori-ind.com> writes:
> app is idle for a long period of time, the connection to the backend gets
> lost. Is there some kind of postmaster setting to keep alive? Other ideas?

There is not, but you could try patching the backend to set the
KEEPALIVE option on the TCP socket --- see StreamConnection() in
src/backend/libpq/pqcomm.c.

If that helps, I think it'd be reasonable to accept the patch as
an #ifdef'd chunk of code with a config.h variable to control it.
I'm a little hesitant to just drop it in unconditionally --- I don't
know whether KEEPALIVE is supported by all platforms...
        regards, tom lane