Josh Wills created CRUNCH-471: --------------------------------- Summary: Add synchronization checks to DoFnIterator Key: CRUNCH-471 URL: https://issues.apache.org/jira/browse/CRUNCH-471 Project: Crunch Issue Type: Bug Components: Core Affects Versions: 0.11.0 Reporter: Josh Wills Assignee: Josh Wills Fix For: 0.12.0
I hit this one when I was working on a port of the Hadoop Streaming logic to Crunch: if a DoFn emits records via some sort of asynchronous process (e.g., a daemon thread), it can cause a problem for DoFnIterator, which doesn't have thread-safe controls over its underlying records list. Easy fix is to make the accessor methods for CacheEmitter inside of DoFnIterator synchronized. -- This message was sent by Atlassian JIRA (v6.3.4#6332)