Jiandan Yang created HDFS-12390: ------------------------------------ Summary: Supporting DNS to switch mapping Key: HDFS-12390 URL: https://issues.apache.org/jira/browse/HDFS-12390 Project: Hadoop HDFS Issue Type: New Feature Components: hdfs, hdfs-client Reporter: Jiandan Yang Assignee: Jiandan Yang
As described in [HDFS-12200|https://issues.apache.org/jira/browse/HDFS-12200], ScriptBasedMapping may lead to NN cpu 100%. ScriptBasedMapping run sub_processor to get rack info of DN/Client, so we think it's a little heavy. We prepare to use TableMappingļ¼but TableMapping does not support refresh and can not reload rack info of newly added DataNodes. So we implement it. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org