| Package | Description | 
|---|---|
| org.apache.hadoop.mapred | |
| org.apache.hadoop.mapreduce | |
| org.apache.hadoop.mapreduce.security | |
| org.apache.hadoop.security | 
| Modifier and Type | Method and Description | 
|---|---|
| Credentials | JobConf. getCredentials()Get credentials for the job. | 
| Modifier and Type | Method and Description | 
|---|---|
| Credentials | JobContext. getCredentials()Get credentials for the job. | 
| Modifier and Type | Method and Description | 
|---|---|
| static byte[] | TokenCache. getSecretKey(Credentials credentials,
            Text alias)auxiliary method to get user's secret keys.. | 
| static void | TokenCache. obtainTokensForNamenodes(Credentials credentials,
                        Path[] ps,
                        Configuration conf)Convenience method to obtain delegation tokens from namenodes 
 corresponding to the paths passed. | 
| Modifier and Type | Method and Description | 
|---|---|
| Credentials | UserGroupInformation. getCredentials()Obtain the tokens in credentials form associated with this user. | 
| static Credentials | Credentials. readTokenStorageFile(File filename,
                    Configuration conf)Convenience method for reading a token storage file and loading its Tokens. | 
| static Credentials | Credentials. readTokenStorageFile(Path filename,
                    Configuration conf)Convenience method for reading a token storage file and loading its Tokens. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | Credentials. addAll(Credentials other)Copy all of the credentials from one credential object into another. | 
| void | UserGroupInformation. addCredentials(Credentials credentials)Add the given Credentials to this user. | 
| void | Credentials. mergeAll(Credentials other)Copy all of the credentials from one credential object into another. | 
| Constructor and Description | 
|---|
| Credentials(Credentials credentials)Create a copy of the given credentials. | 
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