org.apache.hadoop.yarn.logaggregation
Class LogAggregationUtils

java.lang.Object
  org.apache.hadoop.yarn.logaggregation.LogAggregationUtils

@InterfaceAudience.Private
public class LogAggregationUtils
extends Object

Field Summary

static String

TMP_FILE_SUFFIX

Constructor Summary

LogAggregationUtils()

Method Summary

static String	getNodeString(org.apache.hadoop.yarn.api.records.NodeId nodeId) Converts a nodeId to a form used in the app log file name.
static String	getNodeString(String nodeId)
static org.apache.hadoop.fs.Path	getRemoteAppLogDir(org.apache.hadoop.fs.Path remoteRootLogDir, org.apache.hadoop.yarn.api.records.ApplicationId appId, String user, String suffix) Gets the remote app log dir.
static org.apache.hadoop.fs.Path	getRemoteLogSuffixedDir(org.apache.hadoop.fs.Path remoteRootLogDir, String user, String suffix) Gets the remote suffixed log dir for the user.
static org.apache.hadoop.fs.Path	getRemoteLogUserDir(org.apache.hadoop.fs.Path remoteRootLogDir, String user) Gets the remote log user dir.
static String	getRemoteNodeLogDirSuffix(org.apache.hadoop.conf.Configuration conf) Returns the suffix component of the log dir.
static org.apache.hadoop.fs.Path	getRemoteNodeLogFileForApp(org.apache.hadoop.fs.Path remoteRootLogDir, org.apache.hadoop.yarn.api.records.ApplicationId appId, String user, org.apache.hadoop.yarn.api.records.NodeId nodeId, String suffix) Constructs the full filename for an application's log file per node.

Methods inherited from class java.lang.Object

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

Field Detail

TMP_FILE_SUFFIX

public static final String TMP_FILE_SUFFIX

See Also:

Constant Field Values

Constructor Detail

LogAggregationUtils

public LogAggregationUtils()

Method Detail

getRemoteNodeLogFileForApp

public static org.apache.hadoop.fs.Path getRemoteNodeLogFileForApp(org.apache.hadoop.fs.Path remoteRootLogDir,
                                                                   org.apache.hadoop.yarn.api.records.ApplicationId appId,
                                                                   String user,
                                                                   org.apache.hadoop.yarn.api.records.NodeId nodeId,
                                                                   String suffix)

Constructs the full filename for an application's log file per node.

Parameters:

remoteRootLogDir -

appId -

user -

nodeId -

suffix -

Returns:

the remote log file.

getRemoteAppLogDir

public static org.apache.hadoop.fs.Path getRemoteAppLogDir(org.apache.hadoop.fs.Path remoteRootLogDir,
                                                           org.apache.hadoop.yarn.api.records.ApplicationId appId,
                                                           String user,
                                                           String suffix)

Gets the remote app log dir.

Parameters:

remoteRootLogDir -

appId -

user -

suffix -

Returns:

the remote application specific log dir.

getRemoteLogSuffixedDir

public static org.apache.hadoop.fs.Path getRemoteLogSuffixedDir(org.apache.hadoop.fs.Path remoteRootLogDir,
                                                                String user,
                                                                String suffix)

Gets the remote suffixed log dir for the user.

Parameters:

remoteRootLogDir -

user -

suffix -

Returns:

the remote suffixed log dir.

getRemoteLogUserDir

public static org.apache.hadoop.fs.Path getRemoteLogUserDir(org.apache.hadoop.fs.Path remoteRootLogDir,
                                                            String user)

Gets the remote log user dir.

Parameters:

remoteRootLogDir -

user -

Returns:

the remote per user log dir.

getRemoteNodeLogDirSuffix

public static String getRemoteNodeLogDirSuffix(org.apache.hadoop.conf.Configuration conf)

Returns the suffix component of the log dir.

Parameters:

conf -

Returns:

the suffix which will be appended to the user log dir.

getNodeString

public static String getNodeString(org.apache.hadoop.yarn.api.records.NodeId nodeId)

Converts a nodeId to a form used in the app log file name.

Parameters:

nodeId -

Returns:

the node string to be used to construct the file name.

getNodeString

public static String getNodeString(String nodeId)