HA enable QJM

Hadoop Cluster High Availability (HA) enable QJM (Quorum Journal Manager): https://hadoop.apache.org/docs/r2.7.2/hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithQJM.html

HA enable shared storage

Hadoop Cluster High Availability (HA) enable using shared storage: https://hadoop.apache.org/docs/r2.7.2/hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithNFS.html

ACL

Hadoop Cluster Service Level Authorization (ACL)
Hadoop Cluster enable HTTP/Web ACL

Hadoop in Secure mode

Integrate with Kerberos .

滚动升级

Rolling Upgrade url link: https://hadoop.apache.org/docs/r2.7.2/hadoop-project-dist/hadoop-hdfs/CentralizedCacheManagement.html

HDFS Rolling Upgrade url link: https://hadoop.apache.org/docs/r2.7.2/hadoop-project-dist/hadoop-hdfs/HdfsRollingUpgrade.html

存储策略

Storage Policy url link: https://hadoop.apache.org/docs/r2.7.2/hadoop-project-dist/hadoop-hdfs/ArchivalStorage.html

Memory Storage Support url link: https://hadoop.apache.org/docs/r2.7.2/hadoop-project-dist/hadoop-hdfs/MemoryStorage.html

KMS

Hadoop KMS(Key Management Server) url link: https://hadoop.apache.org/docs/r2.7.2/hadoop-kms/index.html