Affects Version/s: None
Fix Version/s: 0.22.0
We tested using the same Kerberos key for all datanodes in a HDFS cluster or the same Kerberos key for all TaskTarckers in a MapRed cluster. But it doesn't work. The reason is that when datanodes try to authenticate to the namenode all at once, the Kerberos authenticators they send to the namenode may have the same timestamp and will be rejected as replay requests. This JIRA makes it possible to use a unique key for each service instance.
|Status||Patch Available [ 10002 ]||Open [ 1 ]|
|Status||Patch Available [ 10002 ]||Resolved [ 5 ]|
|Fix Version/s||0.22.0 [ 12314296 ]|
|Resolution||Fixed [ 1 ]|
|Status||Resolved [ 5 ]||Closed [ 6 ]|