Github user ffbin commented on the pull request: https://github.com/apache/flink/pull/973#issuecomment-127253382 In one millisecond, it will call updateCondition about 10000 times and it will do minus operate 10000 times.But update lastTime is less than times of call updateCondition.So i add updateTime to reduce call times of minus operate.
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---