org.apache.flink.runtime.webmonitor.stats

接口 JobVertexStatsTracker<T extends Statistics>

类型参数:

T - Type of statistics to track

所有已知实现类:

JobVertexThreadInfoTracker

public interface JobVertexStatsTracker<T extends Statistics>

Interface for a tracker of statistics for AccessExecutionJobVertex.

方法概要

限定符和类型	方法和说明
Optional<T>	getVertexStats(org.apache.flink.api.common.JobID jobId, AccessExecutionJobVertex vertex) Returns statistics for a job vertex.
void	shutDown() Shuts the JobVertexStatsTracker down.

方法详细资料

getVertexStats

Optional<T> getVertexStats(org.apache.flink.api.common.JobID jobId,
                           AccessExecutionJobVertex vertex)

Returns statistics for a job vertex. Automatically triggers sampling request if statistics are not available or outdated.

参数:

jobId - job the vertex belongs to

vertex - Vertex to get the stats for.

返回:

Statistics for a vertex. This interface is intended to be used for polling request and for the duration while the statistics are being gathered, the returned Optional can be empty.

shutDown

void shutDown()
       throws org.apache.flink.util.FlinkException

Shuts the JobVertexStatsTracker down.

抛出:

org.apache.flink.util.FlinkException - if the JobVertexStatsTracker could not be shut down