下面列出了怎么用org.apache.hadoop.mapred.Master的API类实例代码及写法，或者点击链接到github查看源代码。
/**
* get delegation token for a specific FS
* @param fs
* @param credentials
* @param p
* @param conf
* @throws IOException
*/
static void obtainTokensForNamenodesInternal(FileSystem fs,
Credentials credentials, Configuration conf) throws IOException {
String delegTokenRenewer = Master.getMasterPrincipal(conf);
if (delegTokenRenewer == null || delegTokenRenewer.length() == 0) {
throw new IOException(
"Can't get Master Kerberos principal for use as renewer");
}
mergeBinaryTokens(credentials, conf);
final Token<?> tokens[] = fs.addDelegationTokens(delegTokenRenewer,
credentials);
if (tokens != null) {
for (Token<?> token : tokens) {
LOG.info("Got dt for " + fs.getUri() + "; "+token);
}
}
}
@Test
public void testSingleTokenFetch() throws Exception {
Configuration conf = new Configuration();
conf.set(YarnConfiguration.RM_PRINCIPAL, "mapred/[email protected]");
String renewer = Master.getMasterPrincipal(conf);
Credentials credentials = new Credentials();
final MockFileSystem fs = new MockFileSystem();
final MockFileSystem mockFs = (MockFileSystem) fs.getRawFileSystem();
when(mockFs.getCanonicalServiceName()).thenReturn("host:0");
when(mockFs.getUri()).thenReturn(new URI("mockfs://host:0"));
Path mockPath = mock(Path.class);
when(mockPath.getFileSystem(conf)).thenReturn(mockFs);
Path[] paths = new Path[]{ mockPath, mockPath };
when(mockFs.addDelegationTokens("me", credentials)).thenReturn(null);
TokenCache.obtainTokensForNamenodesInternal(credentials, paths, conf);
verify(mockFs, times(1)).addDelegationTokens(renewer, credentials);
}
/**
* get delegation token for a specific FS
* @param fs
* @param credentials
* @param p
* @param conf
* @throws IOException
*/
static void obtainTokensForNamenodesInternal(FileSystem fs,
Credentials credentials, Configuration conf) throws IOException {
String delegTokenRenewer = Master.getMasterPrincipal(conf);
if (delegTokenRenewer == null || delegTokenRenewer.length() == 0) {
throw new IOException(
"Can't get Master Kerberos principal for use as renewer");
}
mergeBinaryTokens(credentials, conf);
final Token<?> tokens[] = fs.addDelegationTokens(delegTokenRenewer,
credentials);
if (tokens != null) {
for (Token<?> token : tokens) {
LOG.info("Got dt for " + fs.getUri() + "; "+token);
}
}
}
@Test
public void testSingleTokenFetch() throws Exception {
Configuration conf = new Configuration();
conf.set(YarnConfiguration.RM_PRINCIPAL, "mapred/[email protected]");
String renewer = Master.getMasterPrincipal(conf);
Credentials credentials = new Credentials();
final MockFileSystem fs = new MockFileSystem();
final MockFileSystem mockFs = (MockFileSystem) fs.getRawFileSystem();
when(mockFs.getCanonicalServiceName()).thenReturn("host:0");
when(mockFs.getUri()).thenReturn(new URI("mockfs://host:0"));
Path mockPath = mock(Path.class);
when(mockPath.getFileSystem(conf)).thenReturn(mockFs);
Path[] paths = new Path[]{ mockPath, mockPath };
when(mockFs.addDelegationTokens("me", credentials)).thenReturn(null);
TokenCache.obtainTokensForNamenodesInternal(credentials, paths, conf);
verify(mockFs, times(1)).addDelegationTokens(renewer, credentials);
}
private static Token<?> getDelegationTokenFromHS(HSClientProtocol hsProxy, Configuration conf) throws IOException {
GetDelegationTokenRequest request =
RecordFactoryProvider.getRecordFactory(null).newRecordInstance(GetDelegationTokenRequest.class);
request.setRenewer(Master.getMasterPrincipal(conf));
org.apache.hadoop.yarn.api.records.Token mrDelegationToken;
mrDelegationToken = hsProxy.getDelegationToken(request).getDelegationToken();
return ConverterUtils.convertFromYarn(mrDelegationToken, hsProxy.getConnectAddress());
}
private Token<?> getDelegationTokenFromHS(HSClientProtocol hsProxy)
throws IOException, InterruptedException {
GetDelegationTokenRequest request =
recordFactory.newRecordInstance(GetDelegationTokenRequest.class);
request.setRenewer(Master.getMasterPrincipal(conf));
org.apache.hadoop.yarn.api.records.Token mrDelegationToken;
mrDelegationToken =
hsProxy.getDelegationToken(request).getDelegationToken();
return ConverterUtils.convertFromYarn(mrDelegationToken,
hsProxy.getConnectAddress());
}
@BeforeClass
public static void setup() throws Exception {
conf = new Configuration();
conf.set(YarnConfiguration.RM_PRINCIPAL, "mapred/[email protected]");
renewer = Master.getMasterPrincipal(conf);
}
@BeforeClass
public static void setup() throws Exception {
conf = new Configuration();
conf.set(YarnConfiguration.RM_PRINCIPAL, "mapred/[email protected]");
renewer = Master.getMasterPrincipal(conf);
}