本文整理汇总了Java中org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgress.setCount方法的典型用法代码示例。如果您正苦于以下问题：Java StartupProgress.setCount方法的具体用法？Java StartupProgress.setCount怎么用？Java StartupProgress.setCount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.namenode.startupprogress.StartupProgress的用法示例。
在下文中一共展示了StartupProgress.setCount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: save
import org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgress; //导入方法依赖的package包/类
void save(File newFile, FSImageCompression compression) throws IOException {
checkNotSaved();
final FSNamesystem sourceNamesystem = context.getSourceNamesystem();
FSDirectory fsDir = sourceNamesystem.dir;
String sdPath = newFile.getParentFile().getParentFile().getAbsolutePath();
Step step = new Step(StepType.INODES, sdPath);
StartupProgress prog = NameNode.getStartupProgress();
prog.beginStep(Phase.SAVING_CHECKPOINT, step);
prog.setTotal(Phase.SAVING_CHECKPOINT, step,
fsDir.rootDir.numItemsInTree());
Counter counter = prog.getCounter(Phase.SAVING_CHECKPOINT, step);
long startTime = now();
//
// Write out data
//
MessageDigest digester = MD5Hash.getDigester();
FileOutputStream fout = new FileOutputStream(newFile);
DigestOutputStream fos = new DigestOutputStream(fout, digester);
DataOutputStream out = new DataOutputStream(fos);
try {
out.writeInt(HdfsConstants.LAYOUT_VERSION);
// We use the non-locked version of getNamespaceInfo here since
// the coordinating thread of saveNamespace already has read-locked
// the namespace for us. If we attempt to take another readlock
// from the actual saver thread, there's a potential of a
// fairness-related deadlock. See the comments on HDFS-2223.
out.writeInt(sourceNamesystem.unprotectedGetNamespaceInfo()
.getNamespaceID());
out.writeLong(fsDir.rootDir.numItemsInTree());
out.writeLong(sourceNamesystem.getGenerationStampV1());
out.writeLong(sourceNamesystem.getGenerationStampV2());
out.writeLong(sourceNamesystem.getGenerationStampAtblockIdSwitch());
out.writeLong(sourceNamesystem.getLastAllocatedBlockId());
out.writeLong(context.getTxId());
out.writeLong(sourceNamesystem.getLastInodeId());
sourceNamesystem.getSnapshotManager().write(out);
// write compression info and set up compressed stream
out = compression.writeHeaderAndWrapStream(fos);
LOG.info("Saving image file " + newFile +
" using " + compression);
// save the root
saveINode2Image(fsDir.rootDir, out, false, referenceMap, counter);
// save the rest of the nodes
saveImage(fsDir.rootDir, out, true, counter);
prog.endStep(Phase.SAVING_CHECKPOINT, step);
// Now that the step is finished, set counter equal to total to adjust
// for possible under-counting due to reference inodes.
prog.setCount(Phase.SAVING_CHECKPOINT, step,
fsDir.rootDir.numItemsInTree());
// save files under construction
sourceNamesystem.saveFilesUnderConstruction(out);
context.checkCancelled();
sourceNamesystem.saveSecretManagerState(out, sdPath);
context.checkCancelled();
out.flush();
context.checkCancelled();
fout.getChannel().force(true);
} finally {
out.close();
}
saved = true;
// set md5 of the saved image
savedDigest = new MD5Hash(digester.digest());
LOG.info("Image file " + newFile + " of size " + newFile.length() +
" bytes saved in " + (now() - startTime)/1000 + " seconds.");
}