On Fri, Jun 07, 2013 at 10:30:21AM +0200, [email protected] wrote:
>
> First I tried to set "SQLNET.EXPIRE_TIME = 10" in
> /etc/rhn/tns_admin/osa-dispatcher/sqlnet.ora - which should tell the Oracle
> Instant Client to use its implemented keepalives procedures. It just doesn't
> work.
As pointed out by Michael, this is server-side thing which allows the
server to detect dead connections and release server resources.
> Then I tried to set appropriate TCP-Keepalive Values in the Linux Kernel
> (sysctl -w net.ipv4.tcp_keepalive_time=600). But the sockets opened by
> spacewalk don't use "SO_KEEPALIVE" - which effectively disables
> tcp-keepalive.
>
> Can someone help me out?
I believe you need to specify
ENABLE=BROKEN
in your tnsnames.ora to enable TCP keepalive.
--
Jan Pazdziora
Principal Software Engineer, Identity Management Engineering, Red Hat
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