Cloud Monitor metrics - E-MapReduce - Alibaba Cloud Documentation Center

This topic describes the metrics of E-MapReduce (EMR) Serverless StarRocks monitored by CloudMonitor. The metrics involve multiple key performance parameters.

Availability

Metric name	Type	Dimension	Description
`serverless_starrocks_node_info_alive_percent`	Instantaneous value	-	The liveness rate (Alive) of backend (BE)/compute node (CN) nodes. This metric reflects the health status of the nodes.
`serverless_starrocks_fe_node_starting_log`	Instantaneous value	podName	Indicates whether the startup log of a frontend (FE) process is captured. A value of 1 means that the characteristic log of a process startup is detected during the time period.
`serverless_starrocks_be_node_starting_log`	Instantaneous value	podName	Indicates whether the startup log of a BE/CN process is captured. A value of 1 means that the characteristic log of a process startup is detected during the time period.
`serverless_starrocks_fe_up`	Instantaneous value	podName	The result of an HTTP request to the node. A value of 1 indicates success. A value of 0 indicates failure. This metric can be used to indicate the status of an FE node.
`serverless_starrocks_be_up`	Instantaneous value	podName	The result of an HTTP request to the node. A value of 1 indicates success. A value of 0 indicates failure. This metric can be used to indicate the status of a BE/CN node.

Resource usage

Metric name	Type	Dimension	Description
`serverless_starrocks_fe_cpu_util`	Instantaneous value	podName	The CPU utilization of the FE node.
`serverless_starrocks_be_cpu_util`	Instantaneous value	warehouseName podName	The CPU utilization of the BE node.
`serverless_starrocks_fe_jvm_heap_util`	Instantaneous value	podName	The Java Virtual Machine (JVM) heap memory usage of the FE node.
`serverless_starrocks_fe_mem_util`	Instantaneous value	podName	The memory usage of the FE node. Due to the characteristics of the JVM, use the `serverless_starrocks_fe_jvm_heap_util` metric to configure alert monitoring.
`serverless_starrocks_be_mem_util`	Instantaneous value	warehouseName podName	The memory usage of the BE node.
`serverless_starrocks_be_jemalloc_allocated_bytes`	Instantaneous value	warehouseName podName	The size of memory allocated to the BE node. Unit: Byte.
`serverless_starrocks_be_query_mem_bytes`	Instantaneous value	warehouseName podName	The total memory used during query execution.
`serverless_starrocks_be_load_mem_bytes`	Instantaneous value	warehouseName podName	The total memory used by import tasks.
`serverless_starrocks_be_compaction_mem_bytes`	Instantaneous value	warehouseName podName	The memory used by version compaction.
`serverless_starrocks_be_schema_change_mem_bytes`	Instantaneous value	warehouseName podName	The memory used by Schema Change tasks.
`serverless_starrocks_be_column_pool_mem_bytes`	Instantaneous value	warehouseName podName	The column pool memory pool. This is a Column Cache used to accelerate data reads from the storage layer.
`serverless_starrocks_be_storage_page_cache_mem_bytes`	Instantaneous value	warehouseName podName	The page cache of the BE storage layer.
`serverless_starrocks_be_jit_cache_mem_bytes`	Instantaneous value	warehouseName podName	The cache for BE just-in-time (JIT) compiled functions.
`serverless_starrocks_be_chunk_allocator_mem_bytes`	Instantaneous value	warehouseName podName	The per-core CPU cache. This cache is used to accelerate small memory block requests.
`serverless_starrocks_be_consistency_mem_bytes`	Instantaneous value	warehouseName podName	The memory used for periodic consistency checks.
`serverless_starrocks_be_datacache_mem_bytes`	Instantaneous value	warehouseName podName	The memory used by cached data.
`serverless_starrocks_be_clone_mem_bytes`	Instantaneous value	warehouseName podName	The total memory used by Tablet Clone tasks.
`serverless_starrocks_be_metadata_mem_bytes`	Instantaneous value	warehouseName podName	The memory used by metadata.
`serverless_starrocks_be_disks_utilization`	Instantaneous value	podName	The disk capacity usage of the BE node.
`serverless_starrocks_be_max_disk_io_util_percent`	Instantaneous value	warehouseName podName	The maximum disk I/O utilization.
`serverless_starrocks_fe_connection_total`	Instantaneous value	podName	The total number of connections to the FE node.
`serverless_starrocks_be_network_send_bytes`	Cumulative value	warehouseName podName device	The total amount of data sent over the network. Unit: Byte.
`serverless_starrocks_be_network_receive_bytes`	Cumulative value	warehouseName podName device	The total amount of data received over the network. Unit: Byte.

Query performance

Metric name	Type	Dimension	Description
`serverless_starrocks_fe_query_latency_ms`	Instantaneous value	podName	The percentile statistics of query latency, such as P75, P95, and P99. Differentiated by the `quantile` tag. Unit: ms.
`serverless_starrocks_fe_query_resource_group_latency`	Instantaneous value	podName name type	The latency statistics for resource group queries.
`serverless_starrocks_fe_qps`	Instantaneous value	podName	The number of queries executed per second.
`serverless_starrocks_fe_query_err_increase`	Instantaneous value	podName	The number of failed queries per minute.
`serverless_starrocks_fe_slow_query_increase`	Instantaneous value	podName	The number of slow queries per minute.
`serverless_starrocks_fe_query_total`	Cumulative value	podName	The total number of query requests.
`serverless_starrocks_fe_query_err`	Cumulative value	podName	The total number of failed requests.
`serverless_starrocks_fe_query_timeout`	Cumulative value	podName	The total number of timed-out queries.
`serverless_starrocks_fe_query_queue_pending`	Instantaneous value	podName	The number of queries currently in the queue.
`serverless_starrocks_fe_query_queue_total_increase`	Instantaneous value	podName	The number of historical queued queries, including queries that are running.
`serverless_starrocks_fe_query_queue_timeout_increase`	Instantaneous value	podName	The total number of queries that timed out in the queue.

Transaction management

Metric name	Type	Dimension	Description
`serverless_starrocks_fe_txn_running`	Instantaneous value	db	The number of currently running transactions.

Materialized view (MV)

Metric name	Type	Dimension	Description
`serverless_starrocks_fe_mv_inactive_state`	Instantaneous value	dbName mvId mvName	The status of the materialized view. Valid values: `0` (active) and `1` (inactive).
`serverless_starrocks_fe_mv_refresh_running_jobs`	Instantaneous value	dbName mvId mvName	The number of refresh jobs that are currently running for the materialized view.
`serverless_starrocks_fe_mv_refresh_total_failed_jobs_increase`	Instantaneous value	dbName mvName	The number of failed materialized view (MV) refresh jobs per minute.
`serverless_starrocks_fe_mv_refresh_total_failed_jobs`	Instantaneous value	dbName mvName	The number of failed MV refresh jobs.
`serverless_starrocks_fe_mv_refresh_pending_jobs`	Cumulative value	dbName mvId mvName	The number of pending refresh jobs for the MV.

Other key metrics

Metric name	Type	Dimension	Description
`serverless_starrocks_fe_job`	Instantaneous value	podName exportedJob type state	The number of current jobs.
`serverless_starrocks_fe_meta_log_count`	Instantaneous value	podName	The number of Berkeley DB (BDB) metadata logs for the FE.
`serverless_starrocks_be_max_tablet_rowset_num`	Instantaneous value	podName	The maximum number of versions for a tablet in the BE. A high value may affect performance.
`serverless_starrocks_slow_db_lock_time`	Instantaneous value	podName type	The duration of a slow DB lock.
`serverless_starrocks_lake_publish_tablet_version_latency_99`	Instantaneous value	warehouseName podName	The 99th percentile (P99) latency of Publish Version tasks.
`serverless_starrocks_fe_tablet_max_compaction_score`	Instantaneous value	-	The highest Compaction Score on a BE node. This reflects the compaction pressure.