Advances, Systems and Applications
Table 2 Properties to control direct acess to data blocks
Property | Value to be set | Description |
|---|---|---|
dfs.block.access.token.enable | true | If "true", access tokens are used as capabilities for accessing datanodes. If "false", no access tokens are checked on accessing datanodes. |
dfs.block.access.key. update.interval | Depends upon your requirement, default is 600 | Interval in minutes at which namenode updates its access keys. |
dfs.block.access.token.lifetime | Depends upon your requirement, default is 600 | The lifetime of access tokens in minutes. |