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HADOOP-17546. Update Description of hadoop-http-auth-signature-secret in HttpAuthentication.md. Contributed by Ravuri Sushma sree. 

(cherry picked from commit 9fd2198daa)
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Akira Ajisaka 2021-03-04 14:55:37 +09:00
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hadoop-common-project/hadoop-common/src/site/markdown/HttpAuthentication.md
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@ -43,7 +43,7 @@ The following properties should be in the `core-site.xml` of all the nodes in th
| `hadoop.http.authentication.type` | `simple` | Defines authentication used for the HTTP web-consoles. The supported values are: `simple` \| `kerberos` \| `#AUTHENTICATION_HANDLER_CLASSNAME#`. |
| `hadoop.http.authentication.token.validity` | `36000` | Indicates how long (in seconds) an authentication token is valid before it has to be renewed. |
| `hadoop.http.authentication.token.max-inactive-interval` | `-1` (disabled) | Specifies the time, in seconds, between client requests the server will invalidate the token. |
| `hadoop.http.authentication.signature.secret.file` | `$user.home/hadoop-http-auth-signature-secret` | The signature secret file for signing the authentication tokens. The same secret should be used for all nodes in the cluster, ResourceManager, NameNode, DataNode and NodeManager. This file should be readable only by the Unix user running the daemons. |
| `hadoop.http.authentication.signature.secret.file` | `$user.home/hadoop-http-auth-signature-secret` | The signature secret file for signing the authentication tokens. A different secret should be used for each service in the cluster, ResourceManager, NameNode, DataNode and NodeManager. This file should be readable only by the Unix user running the daemons. |
| `hadoop.http.authentication.cookie.domain` | | The domain to use for the HTTP cookie that stores the authentication token. For authentication to work correctly across all nodes in the cluster the domain must be correctly set. There is no default value, the HTTP cookie will not have a domain working only with the hostname issuing the HTTP cookie. |
| `hadoop.http.authentication.cookie.persistent` | `false` (session cookie) | Specifies the persistence of the HTTP cookie. If the value is true, the cookie is a persistent one. Otherwise, it is a session cookie. *IMPORTANT*: when using IP addresses, browsers ignore cookies with domain settings. For this setting to work properly all nodes in the cluster must be configured to generate URLs with `hostname.domain` names on it. |
| `hadoop.http.authentication.simple.anonymous.allowed` | `true` | Indicates whether anonymous requests are allowed when using 'simple' authentication. |