I need to update NameNode Heap Size because we keep receiving NAMENODE_PAUSE_DURATION alerts.
I'm going to change this configuration in cloudera Manager: HDFS -> Configuration -> NameNode -> Java Heap Size of Namenode in Bytes.
I believe Cloudera Manager will ask to restart the NameNode service. Will the restart break the clients?
Or I should do manually.
- Restart StandBy after updating the configuration.
- Manually failover to StandBy.
- Restart Active,
- Then manually failover to Active.
I'm running CM/CDH 5.3.2 with HA enabled.