本文整理汇总了Java中org.apache.hadoop.hdfs.DFSUtil.setGenericConf方法的典型用法代码示例。如果您正苦于以下问题：Java DFSUtil.setGenericConf方法的具体用法？Java DFSUtil.setGenericConf怎么用？Java DFSUtil.setGenericConf使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.hdfs.DFSUtil的用法示例。
在下文中一共展示了DFSUtil.setGenericConf方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: initializeGenericKeys
import org.apache.hadoop.hdfs.DFSUtil; //导入方法依赖的package包/类
/**
* In federation configuration is set for a set of
* namenode and secondary namenode/backup/checkpointer, which are
* grouped under a logical nameservice ID. The configuration keys specific
* to them have suffix set to configured nameserviceId.
*
* This method copies the value from specific key of format key.nameserviceId
* to key, to set up the generic configuration. Once this is done, only
* generic version of the configuration is read in rest of the code, for
* backward compatibility and simpler code changes.
*
* @param conf
* Configuration object to lookup specific key and to set the value
* to the key passed. Note the conf object is modified
* @param nameserviceId name service Id (to distinguish federated NNs)
* @param namenodeId the namenode ID (to distinguish HA NNs)
* @see DFSUtil#setGenericConf(Configuration, String, String, String...)
*/
public static void initializeGenericKeys(Configuration conf,
String nameserviceId, String namenodeId) {
if ((nameserviceId != null && !nameserviceId.isEmpty()) ||
(namenodeId != null && !namenodeId.isEmpty())) {
if (nameserviceId != null) {
conf.set(DFS_NAMESERVICE_ID, nameserviceId);
}
if (namenodeId != null) {
conf.set(DFS_HA_NAMENODE_ID_KEY, namenodeId);
}
DFSUtil.setGenericConf(conf, nameserviceId, namenodeId,
NAMENODE_SPECIFIC_KEYS);
DFSUtil.setGenericConf(conf, nameserviceId, null,
NAMESERVICE_SPECIFIC_KEYS);
}
// If the RPC address is set use it to (re-)configure the default FS
if (conf.get(DFS_NAMENODE_RPC_ADDRESS_KEY) != null) {
URI defaultUri = URI.create(HdfsConstants.HDFS_URI_SCHEME + "://"
+ conf.get(DFS_NAMENODE_RPC_ADDRESS_KEY));
conf.set(FS_DEFAULT_NAME_KEY, defaultUri.toString());
LOG.debug("Setting " + FS_DEFAULT_NAME_KEY + " to " + defaultUri.toString());
}
}
示例2: create
import org.apache.hadoop.hdfs.DFSUtil; //导入方法依赖的package包/类
public static DFSZKFailoverController create(Configuration conf) {
Configuration localNNConf = DFSHAAdmin.addSecurityConfiguration(conf);
String nsId = DFSUtil.getNamenodeNameServiceId(conf);
if (!HAUtil.isHAEnabled(localNNConf, nsId)) {
throw new HadoopIllegalArgumentException(
"HA is not enabled for this namenode.");
}
String nnId = HAUtil.getNameNodeId(localNNConf, nsId);
if (nnId == null) {
String msg = "Could not get the namenode ID of this node. " +
"You may run zkfc on the node other than namenode.";
throw new HadoopIllegalArgumentException(msg);
}
NameNode.initializeGenericKeys(localNNConf, nsId, nnId);
DFSUtil.setGenericConf(localNNConf, nsId, nnId, ZKFC_CONF_KEYS);
NNHAServiceTarget localTarget = new NNHAServiceTarget(
localNNConf, nsId, nnId);
return new DFSZKFailoverController(localNNConf, localTarget);
}