Example usage for org.apache.hadoop.hdfs DFSConfigKeys DFS_NAMENODE_STALE_DATANODE_INTERVAL_KEY

Introduction

In this page you can find the example usage for org.apache.hadoop.hdfs DFSConfigKeys DFS_NAMENODE_STALE_DATANODE_INTERVAL_KEY.

Prototype

String DFS_NAMENODE_STALE_DATANODE_INTERVAL_KEY

To view the source code for org.apache.hadoop.hdfs DFSConfigKeys DFS_NAMENODE_STALE_DATANODE_INTERVAL_KEY.

Click Source Link

Usage

From source file:backup.integration.MiniClusterTestBase.java

License:Apache License

private Configuration setupConfig(File hdfsDir) throws Exception {
    Configuration conf = new Configuration();
    File backup = new File(tmpHdfs, "backup");
    backup.mkdirs();//w  ww. j a  va 2s  .c  om
    conf.set(DFS_BACKUP_NAMENODE_LOCAL_DIR_KEY, backup.getAbsolutePath());
    conf.set(MiniDFSCluster.HDFS_MINIDFS_BASEDIR, hdfsDir.getAbsolutePath());
    conf.set(DFSConfigKeys.DFS_DATANODE_FSDATASET_FACTORY_KEY, BackupFsDatasetSpiFactory.class.getName());
    conf.set(DFSConfigKeys.DFS_DATANODE_PLUGINS_KEY, DataNodeBackupServicePlugin.class.getName());
    conf.set(DFSConfigKeys.DFS_NAMENODE_PLUGINS_KEY, NameNodeBackupServicePlugin.class.getName());

    conf.setInt(BackupConstants.DFS_BACKUP_DATANODE_RPC_PORT_KEY, 0);
    conf.setInt(BackupConstants.DFS_BACKUP_NAMENODE_HTTP_PORT_KEY, 0);

    conf.setLong(DFSConfigKeys.DFS_HEARTBEAT_INTERVAL_KEY, 2);// 3
    conf.setLong(DFSConfigKeys.DFS_NAMENODE_STALE_DATANODE_MINIMUM_INTERVAL_KEY, 2);// 3
    conf.setLong(DFSConfigKeys.DFS_NAMENODE_STALE_DATANODE_INTERVAL_KEY, 6000);// 30000
    conf.setLong(DFSConfigKeys.DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY, 6000);// 5*60*1000

    org.apache.commons.configuration.Configuration configuration = BackupUtil.convert(conf);
    setupBackupStore(configuration);
    @SuppressWarnings("unchecked")
    Iterator<String> keys = configuration.getKeys();
    while (keys.hasNext()) {
        String key = keys.next();
        conf.set(key, configuration.getString(key));
    }

    return conf;
}

---