本文整理汇总了Java中org.apache.hadoop.hdfs.server.datanode.fsdataset.FsVolumeSpi.getStorageType方法的典型用法代码示例。如果您正苦于以下问题：Java FsVolumeSpi.getStorageType方法的具体用法？Java FsVolumeSpi.getStorageType怎么用？Java FsVolumeSpi.getStorageType使用的例子？那么恭喜您, 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.server.datanode.fsdataset.FsVolumeSpi的用法示例。
在下文中一共展示了FsVolumeSpi.getStorageType方法的1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: startUpCluster
import org.apache.hadoop.hdfs.server.datanode.fsdataset.FsVolumeSpi; //导入方法依赖的package包/类
/**
* If ramDiskStorageLimit is >=0, then RAM_DISK capacity is artificially
* capped. If ramDiskStorageLimit < 0 then it is ignored.
*/
protected final void startUpCluster(final int numDataNodes,
final StorageType[] storageTypes,
final long ramDiskStorageLimit,
final boolean useSCR)
throws IOException {
Configuration conf = new Configuration();
conf.setLong(DFS_BLOCK_SIZE_KEY, BLOCK_SIZE);
conf.setInt(DFS_NAMENODE_LAZY_PERSIST_FILE_SCRUB_INTERVAL_SEC,
LAZY_WRITE_FILE_SCRUBBER_INTERVAL_SEC);
conf.setLong(DFS_HEARTBEAT_INTERVAL_KEY, HEARTBEAT_INTERVAL_SEC);
conf.setInt(DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY,
HEARTBEAT_RECHECK_INTERVAL_MSEC);
conf.setInt(DFS_DATANODE_LAZY_WRITER_INTERVAL_SEC,
LAZY_WRITER_INTERVAL_SEC);
if (useSCR)
{
conf.setBoolean(DFS_CLIENT_READ_SHORTCIRCUIT_KEY,useSCR);
conf.set(DFS_CLIENT_CONTEXT, UUID.randomUUID().toString());
sockDir = new TemporarySocketDirectory();
conf.set(DFS_DOMAIN_SOCKET_PATH_KEY, new File(sockDir.getDir(),
this.getClass().getSimpleName() + "._PORT.sock").getAbsolutePath());
conf.set(DFS_BLOCK_LOCAL_PATH_ACCESS_USER_KEY,
UserGroupInformation.getCurrentUser().getShortUserName());
}
cluster = new MiniDFSCluster
.Builder(conf)
.numDataNodes(numDataNodes)
.storageTypes(storageTypes != null ?
storageTypes : new StorageType[] { DEFAULT, DEFAULT })
.build();
fs = cluster.getFileSystem();
client = fs.getClient();
// Artificially cap the storage capacity of the RAM_DISK volume.
if (ramDiskStorageLimit >= 0) {
List<? extends FsVolumeSpi> volumes =
cluster.getDataNodes().get(0).getFSDataset().getVolumes();
for (FsVolumeSpi volume : volumes) {
if (volume.getStorageType() == RAM_DISK) {
((FsVolumeImpl) volume).setCapacityForTesting(ramDiskStorageLimit);
}
}
}
LOG.info("Cluster startup complete");
}