URL: https://github.com/SSSD/sssd/pull/636 Title: #636: failover: tune up default timeouts
pbrezina commented: """ Ok, how about now? It adds new option `dns_resolver_server_timeout (ms)` that replaces hardcoded `RESOLV_TIMEOUTMS`. Current defaults are: * `dns_resolver_server_timeout`: 1000ms * `dns_resolver_op_timeout`: 2s * `dns_resolver_timeout`: 4s * `ldap_opt_timeout`: 8s I had to increase the `ldap_opt_timeout` for the values to make any sense, otherwise it would not be able to try to resolve next hostname/discovery domain if `dns_resolver_timout` fails. `fo_resolve_service_send() (dns_resolver_timeout)` first resolvse SRV if needed, then resolvs hostname (both `dns_resolver_op_timeout`). So I think if we could remember the responsive dns server in resolver state, we can set `dns_resolver_op_timeout = dns_resolver_timeout` and then set it to say three seconds, keeping `ldap_opt_timeout = 6`. """ See the full comment at https://github.com/SSSD/sssd/pull/636#issuecomment-500817513
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