Procedure
On the instance details page, choose Metric Monitoring > Table Metrics in the left-side navigation pane. On the page that appears, view the metrics of tables.
You can select a table from the drop-down list and select a time range to view the detailed monitoring data of the table within the specified period of time.
You can view the monitoring metrics of a specific table, including core metrics, a Query Result Searcher (QRS) worker, a Searcher worker, and data updates.
Metrics
Core metrics
In the Core section of the Table Metrics page, view the core metrics of the table.
The core metrics include DocCount, QPS, ErrorQPS, and Latency. The following table describes these metrics.
Metric | Description |
DocCount | The number of documents in the table. |
QPS | The number of successful queries per second (QPS). |
ErrorQPS | The number of failed QPS. |
Latency | The time consumed to process query requests. |
QRS
In the QRS section of the Table Metrics page, view the metrics of a QRS worker.
The metrics of a QRS worker include EmptyQPS, QueryLength, ParseQueryLatency, ResultLength, ResultCount, and ResultFormatLatency. The following table describes these metrics.
Metric | Description |
EmptyQPS | The number of queries in which the QRS worker returns empty results per second. |
QueryLength | The length of query requests. |
ParseQueryLatency | The time consumed to parse query requests. |
ResultLength | The length of query results. |
ResultCount | The number of returned documents. |
ResultFormatLatency | The time consumed to format query results. |
Searcher
In the Searcher section of the Table Metrics page, view the metrics of a Searcher worker.
The metrics of a Searcher worker include QPS, ProcessLatency, FetchFieldsLatency, OutputCount, RecallRatio, and VectorIndexLatency. The following table describes these metrics.
Metric | Description |
QPS | The number of queries that the Searcher worker processes per second. |
ProcessLatency | The time consumed by the Searcher worker to process query requests. |
FetchFieldsLatency | The time consumed by the Searcher worker to obtain the returned fields. |
OutputCount | The number of return results. |
RecallRatio | The retrieval ratio of vector indexes. |
VectorIndexLatency | The time consumed to perform vector indexing. |
DataUpdate
In the DataUpdate section of the Table Metrics page, view the metrics of data updates.
The metrics of data updates include ProcessedDocSize, End2EndLatency, rtIndexMemoryUse, and RtIndexMemoryUseRatio. The following table describes these metrics.
Metric | Description |
ProcessedDocSize | The size of the documents that are processed. |
End2EndLatency | The time consumed for end-to-end data processing. |
rtIndexMemoryUse | The real-time memory usage. |
RtIndexMemoryUseRatio | The ratio of the real-time memory usage to the total memory. |