The Overview page displays the real-time running information of a job. You can analyze and determine whether a job is healthy and meets your expectations based on the job status.
Go to the Overview page
- Go to the Job Administration page.
- Log on to the Realtime Compute Console.
- In the top navigation bar, click Administration.
- In the Jobs section, click the target job name under the Job Name field.
- At the top of the Job Administration page, click Overview.
Job instantaneous valuesUnder the Task Status section, you can view the instantaneous values of a job.
|Input TPS||The number of blocks read from the source table per second. For Log Service, you can package multiple data records into one LogGroup for reading. In this case, the value indicates the number of LogGroups read from the source table per second.|
|Input RPS||The number of data records read from the source table per second.|
|Output RPS||The number of data records written to the result table per second.|
|Consumed CPUs||The amount of CPU used by the job.|
|Start Time||The start time of the job.|
|Runtime||The duration during which the job has been running.|
The Vertex Topology section displays the execution graph of the underlying computing logic of Realtime Compute. Each component represents a task. Each data stream flows from one or more data source tables to one or more data result tables. The data flow resembles an arbitrary directed acyclic graph (DAG). To run the job more efficiently, the underlying logic of Realtime Compute chains subtasks to form an operator and chains operators to form a task. Each task is executed in a thread. This reduces thread switching, message serialization or deserialization, data swapping in the buffer, and data latency, but increases the overall throughput. An operator indicates the computational logic, and a task is a collection of multiple operators.
- Display mode
By default, the Vertex Topology section displays the topology. To change the display mode, you can click List Mode in the upper-right corner of the Vertex Topology section.
- Task status information
- Task parameters in the view mode
In the view mode, the information about the current task is displayed in the corresponding box. The following table describes the parameters.
Parameter Description ID The ID of the task in the running topology. Resource Health Score The resource health score obtained based on the specified check. The value reflects the job performance. If the resource health score is less than 60, data is stacked up for the current task, resulting in poor data processing performance.Note We recommend that you implement Optimize performance by manual configuration configuration optimization when the data processing performance is poor. PARALLEL The parallelism of the task. TPS The number of blocks read from the source table per second. DELAY The processing latency of the task. IN_Q The percentage of the input queues for the task. OUT_Q The percentage of the output queues for the task.
- Task parameters in the list mode
At the bottom of the Vertex Topology section, you can view the information about the task in the list mode. The following table describes the parameters.
Parameter Description ID The ID of the task in the running topology. Name The name of the task. Status The running status of the task. InQ max The percentage of the input queues for the task. OutQ max The percentage of the output queues for the task. RecvCnt sum The amount of data received by the task. SendCnt sum The amount of data sent from the task. TPS sum The amount of data read from input nodes per second. Delay max The processing latency of the task. StartTime The start time of the task. Duration(s) The running duration of the task. Task The status of each parallelism for the task.
- Task parameters in the view mode
- Task thread information
Click the task, and then click Execution Vertex page to view the thread list of a task.at the top of the
- Display Vertex operator information
In the Vertex topology section, click the plus sign (+) in the upper-right corner of a Vertex box to display the Vertex operator information.
- Display Vertex details
In the upper-right corner of the Vertex topology section, click Expand All to display Vertex details.
- Display the Vertex details page
In the Vertex topology section, click the Vertex border or the name in the Vertex list to display the Vertex details page on the right. In the Vertex details section, click the task ID, such as LOG 0, on the SubTasks tab to go to the TaskManager logs page.