Question:

Yarn ResourceManager restart is invalid.

analysis:

It could be Hadoop yarn monitored by ambari- resourcemanager.pid The file does not properly record the process ID of ResourceManager.

solve:

enter the directory/var/run/Hadoop yarn/yarn; view Hadoop yarn- resourcemanager.pid The process ID of ResourceManager recorded in; JPS view the ID number of ResourceManager running; if it is not equal, copy and fill in the process ID of ResourceManager viewed by JPS to Hadoop yarn- resourcemanager.pid Wait a few seconds, cluster ambari The display is normal;