interface ShuffleMaster<T extends ShuffleDescriptor> extends AutoCloseable interface ShuffleMaster<T extends ShuffleDescriptor> extends AutoCloseable {

    // other methods  

    /**
     * Get all partitions and their metrics, the metrics mainly includes the meta information of partition(partition bytes, etc).
     * @param jobId ID of the target job @param jobId ID of the target job
     * @return All partitions belongs to the target job and their metrics @return All partitions belongs to the target job and their metrics
     */
    Collection<PartitionWithMetrics> getAllPartitionWithMetrics(JobID jobId    CompletableFuture<Collection<PartitionWithMetrics>> getAllPartitionWithMetrics(JobID jobId);

    interface PartitionWithMetrics     interface PartitionWithMetrics {

        ShuffleMetrics        ShuffleMetrics getPartitionMetricsgetPartitionMetrics();

        ShuffleDescriptor getPartition       ShuffleDescriptor getPartition();
    }

    interface ShuffleMetrics    interface ShuffleMetrics {

        ResultPartitionBytes getPartitionBytes       ResultPartitionBytes getPartitionBytes();
    }
}