Package org.apache.hadoop.yarn.logaggregation

Class AggregatedLogFormat.LogWriter

java.lang.Object

org.apache.hadoop.yarn.logaggregation.AggregatedLogFormat.LogWriter

All Implemented Interfaces:

AutoCloseable

Enclosing class:

AggregatedLogFormat

@Private
public static class AggregatedLogFormat.LogWriter
extends Object
implements AutoCloseable

The writer that writes out the aggregated logs.

Constructor Summary

Constructors

Constructor	Description
LogWriter()

Method Summary

Modifier and Type	Method	Description
void	append(AggregatedLogFormat.LogKey logKey, AggregatedLogFormat.LogValue logValue)
void	close()
org.apache.hadoop.io.file.tfile.TFile.Writer	getWriter()
void	initialize(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.fs.Path remoteAppLogFile, org.apache.hadoop.security.UserGroupInformation userUgi)	Initialize the LogWriter.
void	writeApplicationACLs(Map<org.apache.hadoop.yarn.api.records.ApplicationAccessType,String> appAcls)
void	writeApplicationOwner(String user)

Methods inherited from class java.lang.Object

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

Constructor Details

LogWriter

public LogWriter()

Method Details

initialize

public void initialize(org.apache.hadoop.conf.Configuration conf,
 org.apache.hadoop.fs.Path remoteAppLogFile,
 org.apache.hadoop.security.UserGroupInformation userUgi)
                throws IOException

Initialize the LogWriter. Must be called just after the instance is created.

Parameters:

conf - Configuration

remoteAppLogFile - remote log file path

userUgi - Ugi of the user

Throws:

IOException - Failed to initialize

getWriter

@VisibleForTesting
public org.apache.hadoop.io.file.tfile.TFile.Writer getWriter()

writeApplicationOwner

public void writeApplicationOwner(String user)
                           throws IOException

Throws:

IOException

writeApplicationACLs

public void writeApplicationACLs(Map<org.apache.hadoop.yarn.api.records.ApplicationAccessType,String> appAcls)
                          throws IOException

Throws:

IOException

append

public void append(AggregatedLogFormat.LogKey logKey,
 AggregatedLogFormat.LogValue logValue)
            throws IOException

Throws:

IOException

close

public void close()
           throws org.apache.hadoop.hdfs.protocol.DSQuotaExceededException

Specified by:

close in interface AutoCloseable

Throws:

org.apache.hadoop.hdfs.protocol.DSQuotaExceededException