# Monitoring Item Description

| Monitoring Metric Category | Monitoring Item | Description |
|--- |--- |--- |
|Clickhouse Metrics|Number of Queries per second (queries/s)|Number of queries executed per second, including InsertQuery, SelectQuery|
|:::|Number of Inserts per second (inserts/s)|Number of InsertQuery statements executed per second|
|:::|Number of Selects per second (selects/s)|Number of SelectQuery statements executed per second|
|:::|Number of Failed Queries per second (failed queries/s)|Number of failed query executions per second, including InsertQuery, SelectQuery|
|:::|Number of Failed Insert Queries per second (failed inserts/s)|Number of failed InsertQuery executions per second|
|:::|Number of Failed Select Queries per second (failed selects/s)|Number of failed SelectQuery executions per second|
|:::|Number of Delayed Inserts per second (delayed inserts/s)|Number of delayed insert statements per second|
|:::|Number of Running Merges (merges)|Number of merge tasks currently running|
|:::|Number of Running Mutations (mutations)|Number of data correction tasks currently running|
|:::|Number of Rows Written per second (rows/s)|Number of rows written per second|
|:::|Number of Data Parts (parts)|Total count of data parts|
|:::|Number of Inactive Data Parts (inactive parts)|Count of inactive data parts|
|:::|Write Size per second (Bps)|Amount of data written per second|
|:::|QPS|Number of queries processed per second|
|:::|TPS|Number of transactions processed per second|
|:::|Number of Query Threads (threads)|Number of query threads|
|:::|Number of TCP Connections (connections)|Number of TCP connections|
|:::|Number of HTTP Connections (connections)|Number of HTTP connections|
|:::|Number of MySQL Connections (connections)|Number of MySQL connections|
|:::|Number of Running Queries (queries)|Number of currently running query statements|
|Node Metrics|Data Disk Read/Write Throughput (Bps)|Disk read/write throughput|
|:::|Data Disk Read/Write Operations (ops/s)|Number of data disk read/write operations|
|:::|Network Interface Bandwidth In/Out (Bps)|Network interface bandwidth value|
|:::|Data Disk Utilization (%)|Data disk utilization|
|:::|CPU Utilization (%)|CPU utilization|
|:::|Memory Utilization (%)|Memory utilization|