Package com.google.cloud.bigquery
Class QueryStage
java.lang.Object
com.google.cloud.bigquery.QueryStage
- All Implemented Interfaces:
Serializable
BigQuery provides diagnostic information about a completed query's execution plan (or query plan
for short). The query plan describes a query as a series of stages, with each stage comprising a
number of steps that read from data sources, perform a series of transformations on the input,
and emit an output to a future stage (or the final result). This class contains information on a
query stage.
- See Also:
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Nested Class Summary
Modifier and TypeClassDescriptionstatic class
Each query stage is made of a number of steps. -
Method Summary
Modifier and TypeMethodDescriptionfinal boolean
long
Returns the number of parallel input segments completed.long
Returns the time in milliseconds the average worker spent on CPU-bound tasks.long
Returns the time in milliseconds the slowest worker spent on CPU-bound tasks.double
Returns the time the average worker spent CPU-bound, divided by the longest time spent by any worker in any segment.double
Returns the time the slowest worker spent CPU-bound, divided by the longest time spent by any worker in any segment.long
getEndMs()
Returns the stage end time represented as milliseconds since epoch.long
Returns a unique, server-generated ID for the stage within its plan.Returns a list of the stage IDs that are inputs to this stage.getName()
Returns a human-readable name for the stage.long
Returns the number of parallel input segments to be processed.long
Returns the time in milliseconds the average worker spent reading input.long
Returns the time in milliseconds the slowest worker spent reading input.double
Returns the time the average worker spent reading input data, divided by the longest time spent by any worker in any segment.double
Returns the time the slowest worker spent reading input data, divided by the longest time spent by any worker in any segment.long
Returns the number of rows (top-level records) read by the stage.long
Returns the number of rows (top-level records) written by the stage.long
Returns the total number of bytes written to shuffle.long
Returns the total number of bytes writtedn to shuffle and spilled to disk.long
Returns the slot-milliseconds used by the stage.long
Returns the stage start time represented as milliseconds since epoch.Returns the current status for the stage.getSteps()
Returns the list of steps within the stage in dependency order (approximately chronological).long
Returns the time in milliseconds the average worker spent waiting to be scheduled.long
Returns the time in milliseconds the slowest worker spent waiting to be scheduled.double
Returns the time the average worker spent waiting to be scheduled, divided by the longest time spent by any worker in any segment.double
Returns the time the slowest worker spent waiting to be scheduled, divided by the longest time spent by any worker in any segment.long
Returns the time in milliseconds the average worker spent writing output.long
Returns the time in milliseconds the slowest worker spent writing output.double
Returns the time the average worker spent writing output data, divided by the longest time spent by any worker in any segment.double
Returns the time the slowest worker spent writing output data, divided by the longest time spent by any worker in any segment.final int
hashCode()
toString()
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Method Details
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getCompletedParallelInputs
public long getCompletedParallelInputs()Returns the number of parallel input segments completed. -
getComputeMsAvg
public long getComputeMsAvg()Returns the time in milliseconds the average worker spent on CPU-bound tasks. -
getComputeMsMax
public long getComputeMsMax()Returns the time in milliseconds the slowest worker spent on CPU-bound tasks. -
getComputeRatioAvg
public double getComputeRatioAvg()Returns the time the average worker spent CPU-bound, divided by the longest time spent by any worker in any segment. -
getComputeRatioMax
public double getComputeRatioMax()Returns the time the slowest worker spent CPU-bound, divided by the longest time spent by any worker in any segment. -
getEndMs
public long getEndMs()Returns the stage end time represented as milliseconds since epoch. -
getGeneratedId
public long getGeneratedId()Returns a unique, server-generated ID for the stage within its plan. -
getInputStages
Returns a list of the stage IDs that are inputs to this stage. -
getName
Returns a human-readable name for the stage. -
getParallelInputs
public long getParallelInputs()Returns the number of parallel input segments to be processed. -
getReadMsAvg
public long getReadMsAvg()Returns the time in milliseconds the average worker spent reading input. -
getReadMsMax
public long getReadMsMax()Returns the time in milliseconds the slowest worker spent reading input. -
getReadRatioAvg
public double getReadRatioAvg()Returns the time the average worker spent reading input data, divided by the longest time spent by any worker in any segment. -
getReadRatioMax
public double getReadRatioMax()Returns the time the slowest worker spent reading input data, divided by the longest time spent by any worker in any segment. -
getRecordsRead
public long getRecordsRead()Returns the number of rows (top-level records) read by the stage. -
getRecordsWritten
public long getRecordsWritten()Returns the number of rows (top-level records) written by the stage. -
getShuffleOutputBytes
public long getShuffleOutputBytes()Returns the total number of bytes written to shuffle. -
getShuffleOutputBytesSpilled
public long getShuffleOutputBytesSpilled()Returns the total number of bytes writtedn to shuffle and spilled to disk. -
getStartMs
public long getStartMs()Returns the stage start time represented as milliseconds since epoch. -
getStatus
Returns the current status for the stage. -
getSteps
Returns the list of steps within the stage in dependency order (approximately chronological). -
getWaitMsAvg
public long getWaitMsAvg()Returns the time in milliseconds the average worker spent waiting to be scheduled. -
getWaitMsMax
public long getWaitMsMax()Returns the time in milliseconds the slowest worker spent waiting to be scheduled. -
getWaitRatioAvg
public double getWaitRatioAvg()Returns the time the average worker spent waiting to be scheduled, divided by the longest time spent by any worker in any segment. -
getWaitRatioMax
public double getWaitRatioMax()Returns the time the slowest worker spent waiting to be scheduled, divided by the longest time spent by any worker in any segment. -
getWriteMsAvg
public long getWriteMsAvg()Returns the time in milliseconds the average worker spent writing output. -
getWriteMsMax
public long getWriteMsMax()Returns the time in milliseconds the slowest worker spent writing output. -
getWriteRatioAvg
public double getWriteRatioAvg()Returns the time the average worker spent writing output data, divided by the longest time spent by any worker in any segment. -
getWriteRatioMax
public double getWriteRatioMax()Returns the time the slowest worker spent writing output data, divided by the longest time spent by any worker in any segment. -
getSlotMs
public long getSlotMs()Returns the slot-milliseconds used by the stage. -
toString
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hashCode
public final int hashCode() -
equals
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