[ https://issues.apache.org/jira/browse/TEZ-3831?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zhiyuan Yang closed TEZ-3831. ----------------------------- > Reduce Unordered memory needed for storing empty completed events > ----------------------------------------------------------------- > > Key: TEZ-3831 > URL: https://issues.apache.org/jira/browse/TEZ-3831 > Project: Apache Tez > Issue Type: Bug > Reporter: Jonathan Eagles > Assignee: Jonathan Eagles > Fix For: 0.9.1 > > Attachments: Screen Shot 2017-09-13 at 4.55.11 PM.png, > TEZ-3831.001-addendum.patch, TEZ-3831.001.patch > > > the completedInputs blocking queue is used to store inputs for the > UnorderedKVReader to consume. With Auto-reduce parallelism enabled and nearly > all empty inputs, the reader can't prune the empty events from the blocking > queue fast enough to keep up. In my scenario, an OOM occurred. -- This message was sent by Atlassian JIRA (v6.4.14#64029)