本文整理汇总了Java中org.apache.hadoop.hdfs.server.namenode.EditLogFileOutputStream.writeHeader方法的典型用法代码示例。如果您正苦于以下问题：Java EditLogFileOutputStream.writeHeader方法的具体用法？Java EditLogFileOutputStream.writeHeader怎么用？Java EditLogFileOutputStream.writeHeader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.namenode.EditLogFileOutputStream的用法示例。
在下文中一共展示了EditLogFileOutputStream.writeHeader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: createEmptyInProgressEditLog
import org.apache.hadoop.hdfs.server.namenode.EditLogFileOutputStream; //导入方法依赖的package包/类
private static void createEmptyInProgressEditLog(MiniDFSCluster cluster,
NameNode nn, boolean writeHeader) throws IOException {
long txid = nn.getNamesystem().getEditLog().getLastWrittenTxId();
URI sharedEditsUri = cluster.getSharedEditsDir(0, 1);
File sharedEditsDir = new File(sharedEditsUri.getPath());
StorageDirectory storageDir = new StorageDirectory(sharedEditsDir);
File inProgressFile = NameNodeAdapter.getInProgressEditsFile(storageDir,
txid + 1);
assertTrue("Failed to create in-progress edits file",
inProgressFile.createNewFile());
if (writeHeader) {
DataOutputStream out = new DataOutputStream(new FileOutputStream(
inProgressFile));
EditLogFileOutputStream.writeHeader(
NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION, out);
out.close();
}
}
示例2: createEmptyInProgressEditLog
import org.apache.hadoop.hdfs.server.namenode.EditLogFileOutputStream; //导入方法依赖的package包/类
private static void createEmptyInProgressEditLog(MiniDFSCluster cluster,
NameNode nn, boolean writeHeader) throws IOException {
long txid = nn.getNamesystem().getEditLog().getLastWrittenTxId();
URI sharedEditsUri = cluster.getSharedEditsDir(0, 1);
File sharedEditsDir = new File(sharedEditsUri.getPath());
StorageDirectory storageDir = new StorageDirectory(sharedEditsDir);
File inProgressFile = NameNodeAdapter.getInProgressEditsFile(storageDir,
txid + 1);
assertTrue("Failed to create in-progress edits file",
inProgressFile.createNewFile());
if (writeHeader) {
DataOutputStream out = new DataOutputStream(new FileOutputStream(
inProgressFile));
EditLogFileOutputStream.writeHeader(out);
out.close();
}
}