本文整理汇总了Java中org.apache.hadoop.hdfs.server.common.Storage.StorageDirectory.getFinalizedTmp方法的典型用法代码示例。如果您正苦于以下问题：Java StorageDirectory.getFinalizedTmp方法的具体用法？Java StorageDirectory.getFinalizedTmp怎么用？Java StorageDirectory.getFinalizedTmp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.server.common.Storage.StorageDirectory的用法示例。
在下文中一共展示了StorageDirectory.getFinalizedTmp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: doFinalize
import org.apache.hadoop.hdfs.server.common.Storage.StorageDirectory; //导入方法依赖的package包/类
/**
* Finalize the upgrade. The previous dir, if any, will be renamed and
* removed. After this is completed, rollback is no longer allowed.
*
* @param sd the storage directory to finalize
* @throws IOException in the event of error
*/
static void doFinalize(StorageDirectory sd) throws IOException {
File prevDir = sd.getPreviousDir();
if (!prevDir.exists()) { // already discarded
LOG.info("Directory " + prevDir + " does not exist.");
LOG.info("Finalize upgrade for " + sd.getRoot()+ " is not required.");
return;
}
LOG.info("Finalizing upgrade of storage directory " + sd.getRoot());
Preconditions.checkState(sd.getCurrentDir().exists(),
"Current directory must exist.");
final File tmpDir = sd.getFinalizedTmp();
// rename previous to tmp and remove
NNStorage.rename(prevDir, tmpDir);
NNStorage.deleteDir(tmpDir);
LOG.info("Finalize upgrade for " + sd.getRoot()+ " is complete.");
}