[ZOOKEEPER-1954] StaticHostProvider loses IPv6 scope ID when resolving server addresses

• Type: Bug
• Status: In Progress
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 3.4.6
• Component/s: java client
• Flags: Patch
• Assignee: Unassigned
• Reporter: Bill Havanki
• Created: 03/Jul/14 20:45
• Updated: 18/Jun/15 12:58

Description

I have been getting constant failures of the ClientPortBindTest unit test (see ZOOKEEPER-1256) on my Macbook. I traced the problem to loss of the IPv6 scope ID on the address chosen for the loopback address in the unit test.

The address chosen is: fe80:0:0:0:0:0:0:1%1. The scope ID here is 1, after the percent sign.

The scope ID is lost in the resolveAndShuffle() method of StaticHostProvider. The method uses InetAddress.getByAddress() which apparently does not preserve the scope ID in the host string it is passed. Inet6Address.getByAddress() can, although you have to parse the scope ID out of the host string yourself and pass it as its own parameter.

Issue Links

• relates to: ZOOKEEPER-1476 ipv6 reverse dns related timeouts on OSX connecting to localhost
• relates to: ZOOKEEPER-1256 ClientPortBindTest is failing on Mac OS X