Examples with HashSet java.util.HashSet used on opensource projects

Example 96 with HashSet

use of java.util.HashSet in project hadoop by apache.

the class TestWebDelegationToken method doAsKerberosUser.

public static <T> T doAsKerberosUser(String principal, String keytab, final Callable<T> callable) throws Exception {
    LoginContext loginContext = null;
    try {
        Set<Principal> principals = new HashSet<Principal>();
        principals.add(new KerberosPrincipal(principal));
        Subject subject = new Subject(false, principals, new HashSet<Object>(), new HashSet<Object>());
        loginContext = new LoginContext("", subject, null, new KerberosConfiguration(principal, keytab));
        loginContext.login();
        subject = loginContext.getSubject();
        return Subject.doAs(subject, new PrivilegedExceptionAction<T>() {

            @Override
            public T run() throws Exception {
                return callable.call();
            }
        });
    } catch (PrivilegedActionException ex) {
        throw ex.getException();
    } finally {
        if (loginContext != null) {
            loginContext.logout();
        }
    }
}

Example 97 with HashSet

use of java.util.HashSet in project hadoop by apache.

the class DFSTestUtil method setFederatedConfiguration.

public static void setFederatedConfiguration(MiniDFSCluster cluster, Configuration conf) {
    Set<String> nameservices = new HashSet<String>();
    for (NameNodeInfo info : cluster.getNameNodeInfos()) {
        assert info.nameserviceId != null;
        nameservices.add(info.nameserviceId);
        conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY, info.nameserviceId), DFSUtil.createUri(HdfsConstants.HDFS_URI_SCHEME, info.nameNode.getNameNodeAddress()).toString());
        conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_SERVICE_RPC_ADDRESS_KEY, info.nameserviceId), DFSUtil.createUri(HdfsConstants.HDFS_URI_SCHEME, info.nameNode.getNameNodeAddress()).toString());
    }
    conf.set(DFSConfigKeys.DFS_NAMESERVICES, Joiner.on(",").join(nameservices));
}

Example 98 with HashSet

use of java.util.HashSet in project hadoop by apache.

the class TestBalancer method testBalancerWithIncludeList.

/**
   * Test a cluster with even distribution,
   * then three nodes are added to the cluster,
   * runs balancer with two of the nodes in the include list
   */
@Test(timeout = 100000)
public void testBalancerWithIncludeList() throws Exception {
    final Configuration conf = new HdfsConfiguration();
    initConf(conf);
    Set<String> includeHosts = new HashSet<String>();
    includeHosts.add("datanodeY");
    doTest(conf, new long[] { CAPACITY, CAPACITY }, new String[] { RACK0, RACK1 }, CAPACITY, RACK2, new HostNameBasedNodes(new String[] { "datanodeX", "datanodeY", "datanodeZ" }, BalancerParameters.DEFAULT.getExcludedNodes(), includeHosts), false, false);
}

Example 99 with HashSet

use of java.util.HashSet in project hadoop by apache.

the class TestBalancer method testBalancerCliWithIncludeListInAFile.

/**
   * Test a cluster with even distribution,
   * then three nodes are added to the cluster,
   * runs balancer with two of the nodes in the include list
   */
@Test(timeout = 100000)
public void testBalancerCliWithIncludeListInAFile() throws Exception {
    final Configuration conf = new HdfsConfiguration();
    initConf(conf);
    Set<String> includeHosts = new HashSet<String>();
    includeHosts.add("datanodeY");
    doTest(conf, new long[] { CAPACITY, CAPACITY }, new String[] { RACK0, RACK1 }, CAPACITY, RACK2, new HostNameBasedNodes(new String[] { "datanodeX", "datanodeY", "datanodeZ" }, BalancerParameters.DEFAULT.getExcludedNodes(), includeHosts), true, true);
}

Example 100 with HashSet

use of java.util.HashSet in project hadoop by apache.

the class TestBalancer method testBalancerWithExcludeList.

/**
   * Test a cluster with even distribution,
   * then three nodes are added to the cluster,
   * runs balancer with two of the nodes in the exclude list
   */
@Test(timeout = 100000)
public void testBalancerWithExcludeList() throws Exception {
    final Configuration conf = new HdfsConfiguration();
    initConf(conf);
    Set<String> excludeHosts = new HashSet<String>();
    excludeHosts.add("datanodeY");
    excludeHosts.add("datanodeZ");
    doTest(conf, new long[] { CAPACITY, CAPACITY }, new String[] { RACK0, RACK1 }, CAPACITY, RACK2, new HostNameBasedNodes(new String[] { "datanodeX", "datanodeY", "datanodeZ" }, excludeHosts, BalancerParameters.DEFAULT.getIncludedNodes()), false, false);
}