org.apache.samza.job.yarn

Class YarnAppState

java.lang.Object

org.apache.samza.job.yarn.YarnAppState

public class YarnAppState
extends java.lang.Object

YarnAppState encapsulates Yarn specific state variables that are Yarn specific. This class is useful for information to display in the UI. TODO: make these variables private, provide thread-safe accessors. Saving making changes to variables in YarnAppState because it is used by the UI, and changes to variable names, data structure etc. will require changes to the UI scaml templates too. This is tracked as a part of SAMZA-902

Field Summary

Fields

Modifier and Type	Field and Description
org.apache.hadoop.yarn.api.records.ContainerId	amContainerId Id of the AM container (as allocated by the RM) Used for displaying in the AM UI.
org.apache.hadoop.yarn.api.records.ApplicationAttemptId	appAttemptId Application Attempt Id as provided by Yarn Used for displaying in the AM UI.
java.net.URL	coordinatorUrl Job Coordinator URL Usage in SamzaYarnAppMasterService & YarnContainerRunner
java.util.concurrent.ConcurrentMap<java.lang.String,org.apache.hadoop.yarn.api.records.ContainerStatus>	failedContainersStatus
java.lang.String	nodeHost Host name of the NM on which the AM is running Used for displaying in the AM UI.
int	nodeHttpPort Http port of the NM on which the AM is running Used for displaying in the AM UI.
int	nodePort NM port on which the AM is running Used for displaying in the AM UI.
java.util.Map<java.lang.String,org.apache.samza.job.yarn.YarnContainer>	pendingProcessors
java.net.URL	rpcUrl URL of the ApplicationMasterRestServlet
java.util.Map<java.lang.String,org.apache.samza.job.yarn.YarnContainer>	runningProcessors /** State indicating whether the job is healthy or not Modified by both the AMRMCallbackThread and the ContainerAllocator thread
int	taskId Task Id of the AM Used for displaying in the AM UI.
java.net.URL	trackingUrl URL of the ApplicationMasterWebServlet

Constructor Summary

Constructors

Constructor and Description
YarnAppState(int taskId, org.apache.hadoop.yarn.api.records.ContainerId amContainerId, java.lang.String nodeHost, int nodePort, int nodeHttpPort)

Method Summary

Modifier and Type	Method and Description
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

runningProcessors

public java.util.Map<java.lang.String,org.apache.samza.job.yarn.YarnContainer> runningProcessors

/** State indicating whether the job is healthy or not Modified by both the AMRMCallbackThread and the ContainerAllocator thread

pendingProcessors

public java.util.Map<java.lang.String,org.apache.samza.job.yarn.YarnContainer> pendingProcessors

failedContainersStatus

public java.util.concurrent.ConcurrentMap<java.lang.String,org.apache.hadoop.yarn.api.records.ContainerStatus> failedContainersStatus

taskId

public final int taskId

Task Id of the AM Used for displaying in the AM UI. Usage found in ApplicationMasterRestServlet and scalate/WEB-INF/views/index.scaml

amContainerId

public final org.apache.hadoop.yarn.api.records.ContainerId amContainerId

Id of the AM container (as allocated by the RM) Used for displaying in the AM UI. Usage in ApplicationMasterRestServlet and scalate/WEB-INF/views/index.scaml

nodeHost

public final java.lang.String nodeHost

Host name of the NM on which the AM is running Used for displaying in the AM UI. See scalate/WEB-INF/views/index.scaml

nodePort

public final int nodePort

NM port on which the AM is running Used for displaying in the AM UI. See scalate/WEB-INF/views/index.scaml

nodeHttpPort

public final int nodeHttpPort

Http port of the NM on which the AM is running Used for displaying in the AM UI. See scalate/WEB-INF/views/index.scaml

appAttemptId

public final org.apache.hadoop.yarn.api.records.ApplicationAttemptId appAttemptId

Application Attempt Id as provided by Yarn Used for displaying in the AM UI. See scalate/WEB-INF/views/index.scaml and ApplicationMasterRestServlet

coordinatorUrl

public java.net.URL coordinatorUrl

Job Coordinator URL Usage in SamzaYarnAppMasterService & YarnContainerRunner

rpcUrl

public java.net.URL rpcUrl

URL of the ApplicationMasterRestServlet

trackingUrl

public java.net.URL trackingUrl

URL of the ApplicationMasterWebServlet

Constructor Detail

YarnAppState

public YarnAppState(int taskId,
                    org.apache.hadoop.yarn.api.records.ContainerId amContainerId,
                    java.lang.String nodeHost,
                    int nodePort,
                    int nodeHttpPort)

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object