Bug 1052821

Summary:	Unnecessary DNS lookup when accessing web console with https
Product:	[JBoss] JBoss Enterprise Application Platform 6	Reporter:	Hisanobu Okuda <hokuda>
Component:	Domain Management	Assignee:	Darran Lofthouse <darran.lofthouse>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Petr Kremensky <pkremens>
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	6.2.0	CC:	dandread, darran.lofthouse, kkhan
Target Milestone:	DR4
Target Release:	EAP 6.4.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	If a client connects to the server and the SSL session is initiated there is an attempt to resolve the clients host name. If the clients name is an address this involves a DNS look up to attempt to discover the name. This caused performance hit on every connection from a remote client while the DNS lookup is performed, in addition to this if the DNS server is unavailable this can introduce a long delay. This issue has ben fixed in JBoss EAP 6.4. A DNS lookup is now eliminated on the server when a client attempts to connect and establish a SSL session.	Story Points:	---
Clone Of:
Clones:	1151621 (view as bug list)		Environment:
Last Closed:		Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1148532, 1151621

Description Hisanobu Okuda 2014-01-14 06:35:36 UTC

Description of problem:
Accessing web console in EAP6 via https is very slow when DNS is down.

It is caused by getHostName() in httpserver-1.0.1.Final-redhat-3-sources/org/jboss/sun/net/httpserver/SSLStreams.java:-

73:        engine = sslctx.createSSLEngine (addr.getHostName(), addr.getPort());

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. configure https for <http-interface security-realm="ManagementRealm">
2. kill DNS server
3. access https://localhost:9443

Actual results:


Expected results:


Additional info:

Comment 1 Hisanobu Okuda 2014-02-14 01:23:25 UTC

No need to resolve a hostname. The below is enough:-

73:        engine = sslctx.createSSLEngine (addr.getHostAddress(), addr.getPort());

Comment 4 Petr Kremensky 2014-11-14 06:23:37 UTC

The fix is present in EAP 6.4.0.DR9 codebase.