doc(monitor): add some missing metrics.

Signed-off-by: Electronic-Waste <[email protected]>

Author: Electronic-Waste

docs/cn/guides/10-deploy/03-monitor/10-metasrv-metrics.md

@@ -173,6 +173,13 @@ description:
 | databend_meta_grpc_client_request_duration_ms                   | Histogram | 向元领导者发出的不同类型请求（Upsert、Txn、StreamList、StreamMGet、GetClientInfo）的请求持续时间分布。              | endpoint, request                                                                                                                                       |
 | databend_meta_grpc_client_request_inflight                      | Gauge     | 当前连接到元的查询数量。                                                                                                            |                                                                                                                                                         |
 | databend_meta_grpc_client_request_success                       | Counter   | 向元发出的成功请求数。                                                                                                                   | endpoint, request                                                                                                                                       |
+| databend_process_cpu_seconds_total                              | Counter   | 用户和系统使用的总CPU时间（秒） | |
+| databend_process_max_fds                                        | Gauge     | 最大允许的打开文件描述符的数目 | |
+| databend_process_open_fds                                       | Gauge     | 打开的文件描述符的数目 | |
+| databend_process_resident_memory_bytes                          | Gauge     | 物理内存使用量（字节）. | |
+| databend_process_start_time_seconds                             | Gauge     | 进程启动的时刻（Unix时间戳，以秒为单位） | |
+| databend_process_threads                                        | Gauge     | 线程使用数目 | |
+| databend_process_virtual_memory_bytes                           | Gauge     | 虚拟内存使用量（字节） | |
 | databend_opendal_bytes                                          | Counter   | OpenDAL端点读取和写入的总字节数。                                                                                              | scheme（操作使用的方案，例如“s3”），op（操作类型，例如“read”或“write”）                                             |
 | databend_opendal_bytes_histogram                                | Histogram | 按操作的响应时间和计数分布。                                                                                                      | scheme（操作使用的方案，例如“s3”），op（操作类型，例如“write”）                                                       |
 | databend_opendal_errors                                         | Counter   | OpenDAL操作中遇到的错误及其类型数量。                                                                                          | scheme（操作使用的方案，例如“s3”），op（操作类型，例如“read”），err（遇到的错误类型，例如“NotFound”） |

docs/en/guides/10-deploy/03-monitor/10-metasrv-metrics.md

@@ -178,6 +178,13 @@ Here's a list of Query metrics captured by Databend.
 | databend_opendal_errors                                         | Counter   | Number of errors and their types encountered in OpenDAL operations.                                                                                          | scheme (the scheme used for the operation, e.g., "s3"), op (the type of operation, e.g., "read"), err (the type of error encountered, e.g., "NotFound") |
 | databend_opendal_request_duration_seconds                       | Histogram | Duration of OpenDAL requests to object storage.                                                                                                              | scheme (the scheme used for the operation, e.g., "s3"), op (the type of operation, e.g., "read")                                                        |
 | databend_opendal_requests                                       | Counter   | Number of various types of requests made using OpenDAL.                                                                                                      | scheme (the scheme used for the request, e.g., "s3"), op (the operation type, e.g., "batch", "list", "presign", "read", "write", "delete", "stat")      |
+| databend_process_cpu_seconds_total                              | Counter   | Total user and system CPU time spent in seconds. | |
+| databend_process_max_fds                                        | Gauge     | Maximum number of open file descriptors allowed. | |
+| databend_process_open_fds                                       | Gauge     | Number of open file descriptors. | |
+| databend_process_resident_memory_bytes                          | Gauge     | Resident memory size in bytes. | |
+| databend_process_start_time_seconds                             | Gauge     | Start time of the process since Unix epoch in seconds. | |
+| databend_process_threads                                        | Gauge     | Number of OS threads in use. | |
+| databend_process_virtual_memory_bytes                           | Gauge     | Virtual memory size in bytes. | |
 | databend_query_duration_ms                                      | Histogram | Tracks the distribution of execution times for different types of queries initiated by various handlers.                                                     | handler, kind, tenant, cluster                                                                                                                          |
 | databend_query_error                                            | Counter   | Total number of query errors.                                                                                                                                | handler="HTTPQuery", kind="Other", tenant="wubx", cluster="w189"                                                                                        |
 | databend_query_failed                                           | Counter   | Total number of failed requests.                                                                                                                             |                                                                                                                                                         |