Rajesh Balamohan created TEZ-2791: ------------------------------------- Summary: Reduce tez.runtime.shuffle.fetch.buffer.percent default value to avoid corner case OOMs Key: TEZ-2791 URL: https://issues.apache.org/jira/browse/TEZ-2791 Project: Apache Tez Issue Type: Bug Reporter: Rajesh Balamohan
Default value for tez.runtime.shuffle.fetch.buffer.percent is set to 0.9. In corner cases & based on scheduling & data sizes, it is possible that JVM crosses old-gen threshold and ends up throwing OOM. It would be better to set the default value to 0.6. -- This message was sent by Atlassian JIRA (v6.3.4#6332)