Adding new JournalNodes to HDFS can cause lead to problems. If for example a user starts with one node and then add two more for resilience the cluster won't start since only one node out of three has a valid journal. If a new journal node is added to a cluster it should bootstrap from an existing one to avoid this situation.
Adding new JournalNodes to HDFS can cause lead to problems. If for example a user starts with one node and then add two more for resilience the cluster won't start since only one node out of three has a valid journal. If a new journal node is added to a cluster it should bootstrap from an existing one to avoid this situation.