I am pleased to announce that Lisheng Sun has accepted the invitation to become a Hadoop committer.
Lisheng actively contributed to the project since July 2019, and he contributed two new features: Dead datanode detector (HDFS-13571 <https://issues.apache.org/jira/browse/HDFS-13571>) and a new du implementation (HDFS-14313 <https://issues.apache.org/jira/browse/HDFS-14313>) Lots of improvements including a number of short circuit read optimization HDFS-15161 <https://issues.apache.org/jira/browse/HDFS-15161> , speeding up NN fsimage loading time: HDFS-13694 <https://issues.apache.org/jira/browse/HDFS-13694> and HDFS-13693 <https://issues.apache.org/jira/browse/HDFS-13693>. Code wise, he resolved 57 Hadoop jiras. Let's congratulate Lisheng for this new role! Cheers, Wei-Chiu Chuang (on behalf of the Apache Hadoop PMC)
