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java.lang.Objectorg.apache.hadoop.mapred.TaskTrackerStatus.ResourceStatus
public static class TaskTrackerStatus.ResourceStatus
Class representing a collection of resources on this tasktracker.
Method Summary | |
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long |
getAvailableSpace()
Will return LONG_MAX if space hasn't been measured yet. |
long |
getCpuFrequency()
Get the CPU frequency of this TaskTracker Will return UNAVAILABLE if it cannot be obtained |
float |
getCpuUsage()
Get the CPU usage on this TaskTracker Will return UNAVAILABLE if it cannot be obtained |
long |
getCumulativeCpuTime()
Get the cumulative CPU time on this TaskTracker since it is up Will return UNAVAILABLE if it cannot be obtained |
int |
getNumProcessors()
Get the number of processors on this TaskTracker Will return UNAVAILABLE if it cannot be obtained |
long |
getTotalPhysicalMemory()
Get the maximum amount of physical memory on the tasktracker. |
long |
getTotalVirtualMemory()
Get the maximum amount of virtual memory on the tasktracker. |
void |
readFields(DataInput in)
Deserialize the fields of this object from in . |
void |
setCpuFrequency(long cpuFrequency)
Set the CPU frequency of this TaskTracker If the input is not a valid number, it will be set to UNAVAILABLE |
void |
setCpuUsage(float cpuUsage)
Set the CPU usage on this TaskTracker |
void |
setCumulativeCpuTime(long cumulativeCpuTime)
Set the cumulative CPU time on this TaskTracker since it is up It can be set to UNAVAILABLE if it is currently unavailable. |
void |
setNumProcessors(int numProcessors)
Set the number of processors on this TaskTracker If the input is not a valid number, it will be set to UNAVAILABLE |
void |
write(DataOutput out)
Serialize the fields of this object to out . |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
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public long getTotalVirtualMemory()
JobConf.DISABLED_MEMORY_LIMIT
, it should be ignored
and not used in any computation.
public long getTotalPhysicalMemory()
JobConf.DISABLED_MEMORY_LIMIT
, it should be ignored
and not used in any computation.
public long getAvailableSpace()
public void setCpuFrequency(long cpuFrequency)
cpuFrequency
- CPU frequency in kHzpublic long getCpuFrequency()
public void setNumProcessors(int numProcessors)
numProcessors
- number of processorspublic int getNumProcessors()
public void setCumulativeCpuTime(long cumulativeCpuTime)
cumulativeCpuTime
- Used CPU time in millisecondpublic long getCumulativeCpuTime()
public void setCpuUsage(float cpuUsage)
cpuUsage
- CPU usage in %public float getCpuUsage()
public void write(DataOutput out) throws IOException
Writable
out
.
write
in interface Writable
out
- DataOuput
to serialize this object into.
IOException
public void readFields(DataInput in) throws IOException
Writable
in
.
For efficiency, implementations should attempt to re-use storage in the existing object where possible.
readFields
in interface Writable
in
- DataInput
to deseriablize this object from.
IOException
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