[ https://issues.apache.org/jira/browse/FLINK-29351?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xintong Song reopened FLINK-29351: ---------------------------------- > Enable input buffer floating for blocking shuffle > ------------------------------------------------- > > Key: FLINK-29351 > URL: https://issues.apache.org/jira/browse/FLINK-29351 > Project: Flink > Issue Type: Improvement > Components: Runtime / Network > Reporter: Yingjie Cao > Priority: Major > Labels: pull-request-available > > At input gate, Flink needs exclusive buffers for each input channel. For > large parallelism jobs, it is easy to cause "Insufficient number of network > buffers" error. This ticket aims to make all input network buffers floating > for blocking shuffle to reduce the possibility of "Insufficient number of > network buffers" error. This change can also improve the default blocking > shuffle performance because buffer floating can increase the buffer > utilization. -- This message was sent by Atlassian Jira (v8.20.10#820010)