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java.lang.Objectorg.apache.hadoop.hdfs.server.namenode.FSEditLog
@InterfaceAudience.Private @InterfaceStability.Evolving public class FSEditLog
FSEditLog maintains a log of the namespace modifications.
Field Summary | |
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static byte |
OP_INVALID
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Method Summary | |
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Iterator<org.apache.hadoop.hdfs.server.namenode.EditLogOutputStream> |
getOutputStreamIterator(JournalStream.JournalType streamType)
Get stream iterator for the specified type. |
void |
logCloseFile(String path,
org.apache.hadoop.hdfs.server.namenode.INodeFile newNode)
Add close lease record to edit log. |
void |
logMkDir(String path,
org.apache.hadoop.hdfs.server.namenode.INode newNode)
Add create directory record to edit log |
void |
logOpenFile(String path,
org.apache.hadoop.hdfs.server.namenode.INodeFileUnderConstruction newNode)
Add open lease record to edit log. |
void |
logSync()
Sync all modifications done by this thread. |
void |
setBufferCapacity(int size)
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final byte OP_INVALID
Method Detail |
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public void logSync() throws IOException
IOException
public void logOpenFile(String path, org.apache.hadoop.hdfs.server.namenode.INodeFileUnderConstruction newNode)
public void logCloseFile(String path, org.apache.hadoop.hdfs.server.namenode.INodeFile newNode)
public void logMkDir(String path, org.apache.hadoop.hdfs.server.namenode.INode newNode)
public void setBufferCapacity(int size)
public Iterator<org.apache.hadoop.hdfs.server.namenode.EditLogOutputStream> getOutputStreamIterator(JournalStream.JournalType streamType)
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