Jason Lowe created TEZ-3114: ------------------------------- Summary: Shuffle OOM due to EventMetaData flood Key: TEZ-3114 URL: https://issues.apache.org/jira/browse/TEZ-3114 Project: Apache Tez Issue Type: Bug Affects Versions: 0.7.0 Reporter: Jason Lowe
A task encountered an OOM during shuffle, and investigation of the heap dump showed a lot of memory being consumed by almost 3.5 million EventMetaData objects. Auto-parallelism had reduced the number of tasks in the vertex to 1 and there were 2000 upstream tasks to shuffle. -- This message was sent by Atlassian JIRA (v6.3.4#6332)