[FLUME-927] A Flume agent started before collectors in E2E mode could fail to connect to the collector

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.9.4, 0.9.5
• Fix Version/s: 0.9.5
• Component/s: Sinks+Sources
• Assignee: Prasad Suresh Mujumdar
• Reporter: Prasad Suresh Mujumdar
• Created: 11/Jan/12 22:45
• Updated: 18/Jan/12 19:11
• Resolved: 18/Jan/12 19:11

Description

The write ahead log (WAL) mechanism expects the agent sink to be active in 1 second. After that, it assumes that the agent couldn't connect to collector and shuts it down. The AgentSink has a retry mechanism that handles network problems, unavailable collector etc for a configurable amount of time. The hardcode 1 sec timeout in WAL decorator invalidates this retry mechanism.