[ZOOKEEPER-1442] Uncaught exception handler should exit on a java.lang.Error

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 3.4.3, 3.3.5
• Component/s: java client, server
• Assignee: Jeremy Stribling
• Reporter: Jeremy Stribling
• Created: 04/Apr/12 17:09
• Updated: 29/Jul/17 14:34

Description

The uncaught exception handler registered in NIOServerCnxnFactory and ClientCnxn simply logs exceptions and lets the rest of ZooKeeper go on its merry way. However, errors such as OutOfMemoryErrors should really crash the program, as they represent unrecoverable errors. If the exception that gets to the uncaught exception handler is an instanceof a java.lang.Error, ZK should exit with an error code (in addition to logging the error).