Yingjie Cao created FLINK-11000: ----------------------------------- Summary: Introduce Resource Blacklist Mechanism Key: FLINK-11000 URL: https://issues.apache.org/jira/browse/FLINK-11000 Project: Flink Issue Type: Improvement Components: Scheduler Reporter: Yingjie Cao Fix For: 1.8.0
In a large clusters, jobs encounter Hardware and software environment problems occasionally, including software library missing,bad hardware,resource shortage like out of disk space,these problems will lead to task failure,the failover strategy will take care of that and redeploy the relevant tasks. But because of reasons like location preference and limited total resources,the failed task will be scheduled to be deployed on the same host, then the task will fail again and again, many times. The primary cause of this problem is the mismatching of task and resource. Currently, the resource allocation algorithm does not take these into consideration. The blacklist mechanism can solve this problem. The basic idea is that when a task fails too many times on some resource, the Scheduler will not assign the resource to that task. The detail design doc is as follows, [https://docs.google.com/document/d/1Qfb_QPd7CLcGT-kJjWSCdO8xFeobSCHF0vNcfiO4Bkw] -- This message was sent by Atlassian JIRA (v7.6.3#76005)