[DISPATCH-244] SASL library generates un-necessary DNS and LDAP requests

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.5
• Fix Version/s: Backlog
• Component/s: Tests
• Assignee: Unassigned
• Reporter: Alan Conway
• Created: 24/Mar/16 15:56
• Updated: 05/Mar/19 21:38

Description

The dispatch system tests (e.g. system_tests_management) run very slowly when connected to a VPN.

• about 10x slower on VPN configured to use TCP connection
• about 5x slower on VPN configured for UDP connection

Wireshark shows unexpected LDAP and DNS queries on the VPN interface. `wallace` below is the local host name, but is not mentioned in any tests so must be picked up by proton or dispatch at runtime:

1	0.000000000	10.3.113.108	10.11.6.1	LDAP	242	searchRequest(11) "dc=redhat,dc=com" wholeSubtree 
2	0.035161000	10.3.113.108	10.5.30.160	DNS	72	Standard query 0xd03f  A wallace.lab.bos.redhat.com

Issue Links

• is a clone of: DISPATCH-218 Dispatch system tests run very slowly if connected to a VPN
• is related to: DISPATCH-224 Tools fail with no useful error in some SASL configurations
• is related to: PROTON-1354 Disable GSSAPI and GSS-SPNEGO SASL mechanisms if they are not explicitly enabled