Re: configurable keepalive setting through libldap?

Am Freitag 01 Mai 2009 11:50:15 schrieb masarati(a)aero.polimi.it: >> Hi, >> >> since quite some time libldap enables tcp-keepalive, e.g. to detected >> dangling >> syncrepl connections. However the default timeout of two hours that most >> systems are using might be a bit too long for some applications (e.g. I >> had a >> problem lately were nscd didn't answer queries anymore because nss_ldap >> was >> blocking in SSL_read() while the underlying connection has been cut off). >> On >> the other hand messing with the system wide settings might no be a good >> idea >> either. On Linux it is possible to configure the keepalive settings on a >> per >> socket basis through the TCP_KEEP* socket options. >> >> Would it be worth adding ldap_set_option() support for those, even if >> they are >> not really portable? > > I think it would; for archs that do not support it, it could do nothing > (and log accordingly, just in case). Ok, I'll introduce the following new options for keepalive support then: LDAP_OPT_X_KEEPALIVE_IDLE 0x6300 LDAP_OPT_X_KEEPALIVE_PROBES 0x6301 LDAP_OPT_X_KEEPALIVE_INTERVAL 0x6302 We might also think about adding support to set those values for syncrepl and back-ldap/back-meta.