[ZOOKEEPER-208] Zookeeper C client uses API that are not thread safe, causing crashes when multiple instances are active

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.1, 3.1.0
• Component/s: c client

Environment

Linux

• Hadoop Flags: Reviewed
• Assignee: Austin Bennett
• Reporter: Austin Bennett
• Created: 27/Oct/08 05:31
• Updated: 13/Feb/09 21:18
• Resolved: 19/Nov/08 20:49

Description

The Zookeeper C client library uses gethostbyname and strtok, both of which are not safe to use from multiple threads.

The problem is resolved by using getaddrinfo and strtok_r in place of the older API.