Configuring the Maximum Lifetime of an HDFS Token

In security mode, users can flexibly set the maximum token lifetime and token renewal interval in HDFS based on cluster requirements.

Navigation path for setting parameters:

Go to the All Configurations page of HDFS and enter a parameter name in the search box by referring to Modifying Cluster Service Configuration Parameters.

**Table 1** Parameter description
Parameter	Description	Default Value
dfs.namenode.delegation.token.max-lifetime	This parameter is a server parameter. It specifies the maximum lifetime of a token. Unit: milliseconds. Value range: 10,000 to 10,000,000,000,000	604,800,000
dfs.namenode.delegation.token.renew-interval	This parameter is a server parameter. It specifies the maximum lifetime to renew a token. Unit: milliseconds. Value range: 10,000 to 10,000,000,000,000	86,400,000