org.apache.hadoop.hdfs.server.namenode

Class FSImageFormatProtobuf.Saver

java.lang.Object

org.apache.hadoop.hdfs.server.namenode.FSImageFormatProtobuf.Saver

Enclosing class:

org.apache.hadoop.hdfs.server.namenode.FSImageFormatProtobuf

public static final class FSImageFormatProtobuf.Saver
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	CHECK_CANCEL_INTERVAL

Method Summary

Methods

Modifier and Type	Method and Description
void	commitSection(FsImageProto.FileSummary.Builder summary, FSImageFormatProtobuf.SectionName name)
void	commitSectionAndSubSection(FsImageProto.FileSummary.Builder summary, FSImageFormatProtobuf.SectionName name, FSImageFormatProtobuf.SectionName subSectionName) Commit the length and offset of a fsimage section to the summary index, including the sub section, which will be committed before the section is committed.
void	commitSubSection(FsImageProto.FileSummary.Builder summary, FSImageFormatProtobuf.SectionName name) Commit the length and offset of a fsimage sub-section to the summary index.
org.apache.hadoop.hdfs.server.namenode.SaveNamespaceContext	getContext()
int	getInodesPerSubSection()
org.apache.hadoop.io.MD5Hash	getSavedDigest()
FSImageFormatProtobuf.SaverContext	getSaverContext()
boolean	shouldWriteSubSections()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CHECK_CANCEL_INTERVAL

public static final int CHECK_CANCEL_INTERVAL

See Also:

Constant Field Values

Method Detail

getSavedDigest

public org.apache.hadoop.io.MD5Hash getSavedDigest()

getContext

public org.apache.hadoop.hdfs.server.namenode.SaveNamespaceContext getContext()

getSaverContext

public FSImageFormatProtobuf.SaverContext getSaverContext()

getInodesPerSubSection

public int getInodesPerSubSection()

shouldWriteSubSections

public boolean shouldWriteSubSections()

commitSectionAndSubSection

public void commitSectionAndSubSection(FsImageProto.FileSummary.Builder summary,
                              FSImageFormatProtobuf.SectionName name,
                              FSImageFormatProtobuf.SectionName subSectionName)
                                throws IOException

Commit the length and offset of a fsimage section to the summary index, including the sub section, which will be committed before the section is committed.

Parameters:

summary - The image summary object

name - The name of the section to commit

subSectionName - The name of the sub-section to commit

Throws:

IOException

commitSection

public void commitSection(FsImageProto.FileSummary.Builder summary,
                 FSImageFormatProtobuf.SectionName name)
                   throws IOException

Throws:

IOException

commitSubSection

public void commitSubSection(FsImageProto.FileSummary.Builder summary,
                    FSImageFormatProtobuf.SectionName name)
                      throws IOException

Commit the length and offset of a fsimage sub-section to the summary index.

Parameters:

summary - The image summary object

name - The name of the sub-section to commit

Throws:

IOException