Milvus指标仪表板
Milvus在运行时输出详细的时间序列指标列表。您可以使用Prometheus (opens in a new tab)和Grafana (opens in a new tab)来可视化指标。本主题介绍了Grafana Milvus仪表板中显示的监控指标。
该主题中的时间单位为毫秒。而在该主题中，“99th percentile”意味着统计数据的99%都在某个值内。
我们建议先阅读Milvus监控框架概述，以了解Prometheus指标。
Proxy
| Panel | Panel description | PromQL (Prometheus query language) | The Milvus metrics used | Milvus metrics description |
|---|---|---|---|---|
| Search Vector Count Rate | 过去两分钟内每个代理每秒查询的向量平均数。 | sum(increase(milvus_proxy_search_vectors_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by (pod, node_id) | milvus_proxy_search_vectors_count | 查询向量累计查询数。 |
| Insert Vector Count Rate | 过去两分钟内每个代理每秒插入的向量平均数。 | sum(increase(milvus_proxy_insert_vectors_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by (pod, node_id) | milvus_proxy_insert_vectors_count | 插入向量累计插入数。 |
| Search Latency | 过去两分钟内每个代理接收搜索和查询请求的平均延迟和第 99 百分位延迟。 | p99： histogram_quantile(0.99, sum by (le, query_type, pod, node_id) (rate(milvus_proxy_sq_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg：sum(increase(milvus_proxy_sq_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id, query_type) / sum(increase(milvus_proxy_sq_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id, query_type) | milvus_proxy_sq_latency | 搜索和查询请求的延迟。 |
| Collection Search Latency | 过去两分钟内每个代理接收特定集合的搜索和查询请求的平均延迟和第 99 百分位延迟。 | p99：histogram_quantile(0.99, sum by (le, query_type, pod, node_id) (rate(milvus_proxy_collection_sq_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace", collection_name=~"$collection"}[2m]))) avg：sum(increase(milvus_proxy_collection_sq_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace", collection_name=~"$collection"}[2m])) by (pod, node_id, query_type) / sum(increase(milvus_proxy_collection_sq_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace", collection_name=~"$collection"}[2m])) by (pod, node_id, query_type) | milvus_proxy_collection_sq_latency_sum | 特定集合的搜索和查询请求的延迟。 |
| Mutation Latency | 在过去两分钟内，每个代理接收对特定集合的变异请求的平均延迟和延迟的第99个百分位数。 | p99: histogram_quantile(0.99, sum by (le, msg_type, pod, node_id) (rate(milvus_proxy_mutation_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_proxy_mutation_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id, msg_type) / sum(increase(milvus_proxy_mutation_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id, msg_type) | milvus_proxy_mutation_latency_sum | The latency of mutation requests. |
| Collection Mutation Latency | 过去两分钟内发送搜索和查询请求与通过代理接收结果之间的平均延迟和延迟的第99百分位数。 | p99: histogram_quantile(0.99, sum by (le, query_type, pod, node_id) (rate(milvus_proxy_collection_sq_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace", collection_name=~"$collection"}[2m]))) avg: sum(increase(milvus_proxy_collection_sq_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace", collection_name=~"$collection"}[2m])) by (pod, node_id, query_type) / sum(increase(milvus_proxy_collection_sq_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace", collection_name=~"$collection"}[2m])) by (pod, node_id, query_type) | milvus_proxy_collection_sq_latency_sum | 过去两分钟内按代理聚合搜索和查询结果的平均延迟和延迟的第99百分位数。 |
| Reduce Search Result Latency | 过去两分钟内按代理聚合搜索和查询结果的平均延迟和延迟的第99百分位数。 | p99: histogram_quantile(0.99, sum by (le, query_type, pod, node_id) (rate(milvus_proxy_sq_reduce_result_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_proxy_sq_reduce_result_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id, query_type) / sum(increase(milvus_proxy_sq_reduce_result_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id, query_type) | milvus_proxy_sq_reduce_result_latency | The latency of aggregating search and query results returned by each query node. |
| Decode Search Result Latency | 在过去两分钟内通过代理解码搜索和查询结果的平均延迟和延迟的第99百分位数。 | p99: histogram_quantile(0.99, sum by (le, query_type, pod, node_id) (rate(milvus_proxy_sq_decode_result_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_proxy_sq_decode_result_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id, query_type) / sum(increase(milvus_proxy_sq_decode_resultlatency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id, query_type) | milvus_proxy_sq_decode_result_latency | The latency of decoding each search and query result. |
| Msg Stream Object Num | 过去两分钟内每个代理在其相应物理主题上创建的msgstream对象的平均数、最大数和最小数。 | avg(milvus_proxy_msgstream_obj_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) max(milvus_proxy_msgstream_obj_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) min(milvus_proxy_msgstream_obj_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_proxy_msgstream_obj_num | The number of msgstream objects created on each physical topic. |
| Mutation Send Latency | 每个代理在过去两分钟内发送插入或删除请求的平均延迟和延迟的第99百分位数。 | p99: histogram_quantile(0.99, sum by (le, msg_type, pod, node_id) (rate(milvus_proxy_mutation_send_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_proxy_mutation_send_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id, msg_type) / sum(increase(milvus_proxy_mutation_send_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id, msg_type) | milvus_proxy_mutation_send_latency | The latency of sending insertion or deletion requests. |
| Cache Hit Rate | 在过去两分钟内每秒包括 GeCollectionID, GetCollectionInfo , and GetCollectionSchema 的操作的平均缓存命中率。 | sum(increase(milvus_proxy_cache_hit_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace", cache_state="hit"}[2m])/120) by(cache_name, pod, node_id) / sum(increase(milvus_proxy_cache_hit_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by(cache_name, pod, node_id) | milvus_proxy_cache_hit_count | The statistics of hit and failure rate of each cache reading operation. |
| Cache Update Latency | 代理在过去两分钟内的平均延迟和缓存更新延迟的第99百分位数 | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_proxy_cache_update_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_proxy_cache_update_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id) / sum(increase(milvus_proxy_cache_update_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id) | milvus_proxy_cache_update_latency | The latency of updating cache each time. |
| Sync Time | 每个代理在其对应的物理信道中同步的历元时间的平均、最大和最小数量。 | avg(milvus_proxy_sync_epoch_time{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) max(milvus_proxy_sync_epoch_time{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) min(milvus_proxy_sync_epoch_time{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_proxy_sync_epoch_time | Each physical channel's epoch time (Unix time, the milliseconds passed ever since January 1, 1970). There is a default ChannelName apart from the physical channels. |
| Apply PK Latency | 每个代理在过去两分钟内的平均延迟和主键应用程序延迟的第99百分位数。 | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_proxy_apply_pk_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_proxy_apply_pk_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id) / sum(increase(milvus_proxy_apply_pk_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id) | milvus_proxy_apply_pk_latency | The latency of applying primary key. |
| Apply Timestamp Latency | 每个代理在过去两分钟内的平均延迟和主键应用程序延迟的第99百分位数。 | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_proxy_apply_timestamp_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_proxy_apply_timestamp_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id) / sum(increase(milvus_proxy_apply_timestamp_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id) | milvus_proxy_apply_timestamp_latency | The latency of applying timestamp. |
| Request Success Rate | 每个代理接收的所有类型的成功请求数，并分别显示每种类型的统计信息。可能的请求类型有DescribeCollection、DescribeIndex、GetCollectionStatistics、HasCollection、Search、Query、ShowPartitions、Insert等。 | sum(increase(milvus_proxy_req_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace", status="success"}[2m])/120) by(function_name, pod, node_id) | milvus_proxy_req_count | The number of all types of receiving requests |
| Request Failed Rate | 每个代理接收的所有类型的失败请求数，并分别显示每种类型的统计信息。可能的请求类型有DescribeCollection、DescribeIndex、GetCollectionStatistics、HasCollection、Search、Query、ShowPartitions、Insert等。 | sum(increase(milvus_proxy_req_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace", status="fail"}[2m])/120) by(function_name, pod, node_id) | milvus_proxy_req_count | The number of all types of receiving requests |
| Request Latency | 每个代理接收所有类型请求的平均延迟和延迟的第99个百分位数 | p99: histogram_quantile(0.99, sum by (le, pod, node_id, function_name) (rate(milvus_proxy_req_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_proxy_req_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id, function_name) / sum(increase(milvus_proxy_req_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (pod, node_id, function_name) | milvus_proxy_req_latency | The latency of all types of receiving requests |
| Insert/Delete Request Byte Rate | 代理在过去两分钟内每秒接收的插入和删除请求的字节数。 | sum(increase(milvus_proxy_receive_bytes_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by(pod, node_id) | milvus_proxy_receive_bytes_count | The count of insert and delete requests. |
| Send Byte Rate | 在过去两分钟内，每个代理响应搜索和查询请求时，每秒发送回客户端的字节数。 | sum(increase(milvus_proxy_send_bytes_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by(pod, node_id) | milvus_proxy_send_bytes_count | The number of bytes sent back to the client while each proxy is responding to search and query requests. |
Root coordinator
| Panel | Panel description | PromQL (Prometheus query language) | The Milvus metrics used | Milvus metrics description |
|---|---|---|---|---|
| Proxy Node Num | 创建的代理数。 | sum(milvus_rootcoord_proxy_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_rootcoord_proxy_num | The number of proxies. |
| Sync Time | 由每个物理信道（PChannel）中的每个根坐标同步的历元时间的平均值、最大值和最小值。 | avg(milvus_rootcoord_sync_epoch_time{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) max(milvus_rootcoord_sync_epoch_time{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) min(milvus_rootcoord_sync_epoch_time{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_rootcoord_sync_epoch_time | Each physical channel's epoch time (Unix time, the milliseconds passed ever since January 1, 1970). |
| DDL Request Rate | 过去两分钟内每秒DDL请求的状态和数量。 | sum(increase(milvus_rootcoord_ddl_req_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by (status, function_name) | milvus_rootcoord_ddl_req_count | The total number of DDL requests including CreateCollection, DescribeCollection, DescribeSegments, HasCollection, ShowCollections, ShowPartitions, and ShowSegments. |
| DDL Request Latency | 过去两分钟内的平均延迟和DDL请求延迟的第99百分位数。 | p99: histogram_quantile(0.99, sum by (le, function_name) (rate(milvus_rootcoord_ddl_req_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_rootcoord_ddl_req_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (function_name) / sum(increase(milvus_rootcoord_ddl_req_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by (function_name) | milvus_rootcoord_ddl_req_latency | The latency of all types of DDL requests. |
| Sync Timetick Latency | 过去两分钟内根坐标将所有时间戳同步到PChannel所用的平均延迟和时间的第99百分位数。 | p99: histogram_quantile(0.99, sum by (le) (rate(milvus_rootcoord_sync_timetick_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_rootcoord_sync_timetick_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) / sum(increase(milvus_rootcoord_sync_timetick_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) | milvus_rootcoord_sync_timetick_latency | the time used by root coord to sync all timestamp to pchannel. |
| ID Alloc Rate | 在过去两分钟内，根坐标每秒分配的ID数。 | sum(increase(milvus_rootcoord_id_alloc_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) | milvus_rootcoord_id_alloc_count | The accumulated number of IDs assigned by root coord. |
| Timestamp | 根坐标的最新时间戳。 | milvus_rootcoord_timestamp{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"} | milvus_rootcoord_timestamp | The latest timestamp of root coord. |
| Timestamp Saved | root coord保存在meta存储中的预先分配的时间戳。 | milvus_rootcoord_timestamp_saved{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"} | milvus_rootcoord_timestamp_saved | The pre-assigned timestamps that root coord saves in meta storage. The timestamps are assigned 3 seconds earlier. And the timestamp is updated and saved in meta storage every 50 millisecond. |
| Collection Num | 集合的总数。 | sum(milvus_rootcoord_collection_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_rootcoord_collection_num | The total number of collections existing in Milvus currently. |
| Partition Num | 分区的总数 | sum(milvus_rootcoord_partition_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_rootcoord_partition_num | The total number of partitions existing in Milvus currently. |
| DML Channel Num | DML通道的总数。 | sum(milvus_rootcoord_dml_channel_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_rootcoord_dml_channel_num | The total number of DML channels existing in Milvus currently. |
| Msgstream Num | msgstream的总数。 | sum(milvus_rootcoord_msgstream_obj_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_rootcoord_msgstream_obj_num | The total number of msgstreams in Milvus currently. |
| Credential Num | 凭据总数。 | sum(milvus_rootcoord_credential_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_rootcoord_credential_num | The total number of credentials in Milvus currently. |
| Time Tick Delay | 所有DataNode和QueryNode上的流图的最大计时延迟之和。 | sum(milvus_rootcoord_time_tick_delay{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_rootcoord_time_tick_delay | The maximum time tick delay of the flow graphs on each DataNode and QueryNode. |
Query coordinator
| Panel | Panel description | PromQL (Prometheus query language) | The Milvus metrics used | Milvus metrics description |
|---|---|---|---|---|
| Collection Loaded Num | 当前加载到内存中的集合数。 | sum(milvus_querycoord_collection_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_querycoord_collection_num | The number of collections that are currently loaded by Milvus. |
| Entity Loaded Num | 当前加载到内存中的实体数。 | sum(milvus_querycoord_entity_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_querycoord_entitiy_num | The number of entities that are currently loaded by Milvus. |
| Load Request Rate | 过去两分钟内每秒的加载请求数 | sum(increase(milvus_querycoord_load_req_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])120) by (status) | milvus_querycoord_load_req_count | The accumulated number of load requests. |
| Release Request Rate | The number of release requests per second within the past two minutes. | sum(increase(milvus_querycoord_release_req_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by (status) | milvus_querycoord_release_req_count | The accumulated number of release requests. |
| Load Request Latency | 过去两分钟内每秒的释放请求数 | p99: histogram_quantile(0.99, sum by (le) (rate(milvus_querycoord_load_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_querycoord_load_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) / sum(increase(milvus_querycoord_load_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) | milvus_querycoord_load_latency | The time used to complete a load request. |
| Release Request Latency | 过去两分钟内的平均延迟和加载请求延迟的第99百分位数。 | p99: histogram_quantile(0.99, sum by (le) (rate(milvus_querycoord_release_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_querycoord_release_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) / sum(increase(milvus_querycoord_release_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) | milvus_querycoord_release_latency | The time used to complete a release request. |
| Sub-Load Task | 子加载任务的数量。 | sum(milvus_querycoord_child_task_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_querycoord_child_task_num | The number of sub load tasks. A query coord splits a load request into multiple sub load tasks. |
| Parent Load Task | 父加载任务数。 | sum(milvus_querycoord_parent_task_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_querycoord_parent_task_num | The number of sub load tasks. Each load request corresponds to a parent task in the task queue. |
| Sub-Load Task Latency | 子负载任务在过去两分钟内的平均反应时间和反应时间的第99百分位数。 | p99: histogram_quantile(0.99, sum by (le) (rate(milvus_querycoord_child_task_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_querycoord_child_task_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) / sum(increase(milvus_querycoord_child_task_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) namespace"}[2m]))) | milvus_querycoord_child_task_latency | The latency to complete a sub load task. |
| Query Node Num | 查询坐标管理的查询节点数。 | sum(milvus_querycoord_querynode_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_querycoord_querynode_num | The number of query nodes managed by query coord. |
Query node
| Panel | Panel description | PromQL (Prometheus query language) | The Milvus metrics used | Milvus metrics description |
|---|---|---|---|---|
| Collection Loaded Num | The number of collections loaded into memory by each query node. | sum(milvus_querynode_collection_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_querynode_collection_num | The number of collection loaded by each query node. |
| Partition Loaded Num | The number of partitions loaded into memory by each query node. | sum(milvus_querynode_partition_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_querynode_partition_num | The number of partitions loaded by each query node. |
| Segment Loaded Num | The number of segments loaded into memory by each query node. | sum(milvus_querynode_segment_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_querynode_segment_num | The number of segments loaded by each query node. |
| Queryable Entity Num | The number of queryable and searchable entities on each query node. | sum(milvus_querynode_entity_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_querynode_entity_num | The number of queryable and searchable entities on each query node. |
| DML Virtual Channel | The number of DML virtual channels watched by each query node. | sum(milvus_querynode_dml_vchannel_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_querynode_dml_vchannel_num | The number of DML virtual channels watched by each query node. |
| Delta Virtual Channel | The number of delta channels watched by each query node. | sum(milvus_querynode_delta_vchannel_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_querynode_delta_vchannel_num | The number of delta channels watched by each query node. |
| Consumer Num | The number of consumers in each query node. | sum(milvus_querynode_consumer_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_querynode_consumer_num | The number of consumers in each query node. |
| Search Request Rate | The total number of search and query requests received per second by each query node and the number of successful search and query requests within the past two minutes. | sum(increase(milvus_querynode_sq_req_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by (query_type, status, pod, node_id) | milvus_querynode_sq_req_count | The accumulated number of search and query requests. |
| Search Request Latency | The average latency and the 99th percentile of the time used in search and query requests by each query node within the past two minutes. This panel displays the latency of search and query requests whose status are "success" or "total". | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_querynode_sq_req_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_querynode_sq_req_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id, query_type) / sum(increase(milvus_querynode_sq_req_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id, query_type) | milvus_querynode_sq_req_latency | The search request latency of query node. |
| Search in Queue Latency | The average latency and the 99th percentile of the latency of search and query requests in queue within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id, query_type) (rate(milvus_querynode_sq_queue_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_querynode_sq_queue_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id, query_type) / sum(increase(milvus_querynode_sq_queue_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id, query_type) | milvus_querynode_sq_queue_latency | The latency of the search and query requests received by query node. |
| Search Segment Latency | The average latency and the 99th percentile of the time each query node takes to search and query a segment within the past two minutes. The status of a segment can be sealed or growing. | p99: histogram_quantile(0.99, sum by (le, query_type, segment_state, pod, node_id) (rate(milvus_querynode_sq_segment_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_querynode_sq_segment_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id, query_type, segment_state) / sum(increase(milvus_querynode_sq_segment_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id, query_type, segment_state) | milvus_querynode_sq_segment_latency | The time each query node takes to search and query each segment. |
| Segcore Request Latency | The average latency and the 99th percentile of the time each query node takes to search and query in segcore within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, query_type, pod, node_id) (rate(milvus_querynode_sq_core_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_querynode_sq_core_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id, query_type) / sum(increase(milvus_querynode_sq_core_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id, query_type) | milvus_querynode_sq_core_latency | The time each query node takes to search and query in segcore. |
| Search Reduce Latency | The average latency and the 99th percentile of the time used by each query node during the reduce stage of a search or query within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id, query_type) (rate(milvus_querynode_sq_reduce_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_querynode_sq_reduce_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id, query_type) / sum(increase(milvus_querynode_sq_reduce_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id, query_type) | milvus_querynode_sq_reduce_latency | The time each query spends during the stage of reduce. |
| Load Segment Latency | The average latency and the 99th percentile of the time each query node takes to load a segment in the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_querynode_load_segment_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_querynode_load_segment_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) / sum(increase(milvus_querynode_load_segment_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) | milvus_querynode_load_segment_latency_bucket | The time each query node takes to load a segment. |
| Flowgraph Num | The number of flowgraphs in each query node. | sum(milvus_querynode_flowgraph_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_querynode_flowgraph_num | The number of flowgraphs in each query node. |
| Unsolved Read Task Length | The length of the queue of unsolved read requests in each query node. | sum(milvus_querynode_read_task_unsolved_len{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_querynode_read_task_unsolved_len | The length of the queue of unsolved read requests. |
| Ready Read Task Length | The length of the queue of read requests to be executed in each query node. | sum(milvus_querynode_read_task_ready_len{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_querynode_read_task_ready_len | The length of the queue of read requests to be executed. |
| Parallel Read Task Num | The number of concurrent read requests currently executed in each query node. | sum(milvus_querynode_read_task_concurrency{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_querynode_read_task_concurrency | The number of concurrent read requests currently executed. |
| Estimate CPU Usage | The CPU usage by each query node estimated by the scheduler. | sum(milvus_querynode_estimate_cpu_usage{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_querynode_estimate_cpu_usage | The CPU usage by each query node estimated by the scheduler. When the value is 100, this means a whole virtual CPU (vCPU) is used. |
| Search Group Size | The average number and the 99th percentile of the search group size (i.e. The total number of original search requests in the combined search requests executed by each query node) within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_querynode_search_group_size_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_querynode_search_group_size_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) / sum(increase(milvus_querynode_search_group_size_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) | milvus_querynode_load_segment_latency_bucket | The number of original search tasks among the combined search tasks from different buckets (i.e. The search group size). |
| Search NQ | The average number and the 99th percentile of the number of queries (NQ) done while each query node executes search requests within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_querynode_search_group_size_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_querynode_search_group_size_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) / sum(increase(milvus_querynode_search_group_size_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) | milvus_querynode_load_segment_latency_bucket | The number of queries (NQ) of search requests. |
| Search Group NQ | The average number and the 99th percentile of NQ of search requests combined and executed by each query node within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_querynode_search_group_nq_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_querynode_search_group_nq_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) / sum(increase(milvus_querynode_search_group_nq_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) | milvus_querynode_load_segment_latency_bucket | The NQ of search requests combined from different buckets. |
| Search Top_K | The average number and the 99th percentile of the Top_K of search requests executed by each query node within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_querynode_search_topk_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_querynode_search_topk_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) / sum(increase(milvus_querynode_search_topk_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) | milvus_querynode_load_segment_latency_bucket | The Top_K of search requests. |
| Search Group Top_K | The average number and the 99th percentile of the Top_K of search requests combined and executed by each query node within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_querynode_search_group_topk_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_querynode_search_group_topk_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) / sum(increase(milvus_querynode_search_group_topk_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) | milvus_querynode_load_segment_latency_bucket | The Top_K of search requests combined from different buckets . |
| Evicted Read Requests Rate | The number of read requests evicted per second by each query node within the past two minutes. | sum(increase(milvus_querynode_read_evicted_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by (pod, node_id) | milvus_querynode_sq_req_count | The accumulated number of read requests evicted by query node due to traffic restriction. |
Data coordinator
| Panel | Panel description | PromQL (Prometheus query language) | The Milvus metrics used | Milvus metrics description |
|---|---|---|---|---|
| Data Node Num | The number of data nodes managed by data coord. | sum(milvus_datacoord_datanode_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_datacoord_datanode_num | The number of data nodes managed by data coord. |
| Segment Num | The number of all types of segments recorded in metadata by data coord. | sum(milvus_datacoord_segment_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (segment_state) | milvus_datacoord_segment_num | The number of all types of segments recorded in metadata by data coord. Types of segment include: dropped, flushed, flushing, growing, and sealed. |
| Collection Num | The number of collections recorded in metadata by data coord. | sum(milvus_datacoord_collection_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_datacoord_collection_num | The number of collections recorded in metadata by data coord. |
| Stored Rows | The accumulated number of rows of valid and flushed data in data coord. | sum(milvus_datacoord_stored_rows_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_datacoord_stored_rows_num | The accumulated number of rows of valid and flushed data in data coord. |
| Stored Rows Rate | The average number of rows flushed per second within the past two minutes. | sum(increase(milvus_datacoord_stored_rows_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by (pod, node_id) | milvus_datacoord_stored_rows_count | The accumulated number of rows flushed by data coord. |
| Sync Time | The average, maximum, and minimum number of epoch time synced by data coord in each physical channel. | avg(milvus_datacoord_sync_epoch_time{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) max(milvus_datacoord_sync_epoch_time{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) min(milvus_datacoord_sync_epoch_time{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_datacoord_sync_epoch_time | Each physical channel's epoch time (Unix time, the milliseconds passed ever since January 1, 1970). |
| Stored Binlog Size | The total size of stored binlog. | sum(milvus_datacoord_stored_binlog_size{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_datacoord_stored_binlog_size | The total size of binlog stored in Milvus. |
Data node
| Panel | Panel description | PromQL (Prometheus query language) | The Milvus metrics used | Milvus metrics description |
|---|---|---|---|---|
| Flowgraph Num | The number of flowgraph objects that correspond to each data node. | sum(milvus_datanode_flowgraph_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_datanode_flowgraph_num | The number of flowgraph objects. Each shard in a collection corresponds to a flowgraph object. |
| Msg Rows Consume Rate | The number of rows of streaming messages consumed per second by each data node within the past two minutes. | sum(increase(milvus_datanode_msg_rows_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by (msg_type, pod, node_id) | milvus_datanode_msg_rows_count | The number of rows of streaming messages consumed. Currently, streaming messages counted by data node only include insertion and deletion messages. |
| Flush Data Size Rate | The size of each flushed message recorded per second by each data node within the past two minutes. | sum(increase(milvus_datanode_flushed_data_size{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by (msg_type, pod, node_id) | milvus_datanode_flushed_data_size | The size of each flushed message. Currently, streaming messages counted by data node only include insertion and deletion messages. |
| Consumer Num | The number of consumers created on each data node. | sum(milvus_datanode_consumer_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_datanode_consumer_num | The number of consumers created on each data node. Each flowgraph corresponds to a consumer. |
| Producer Num | The number of producers created on each data node. | sum(milvus_datanode_producer_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_datanode_producer_num | The number of consumers created on each data node. Each shard in a collection corresponds to a delta channel producer and a timetick channel producer. |
| Sync Time | The average, maximum, and minimum number of epoch time synced by each data node in all physical topics. | avg(milvus_datanode_sync_epoch_time{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) max(milvus_datanode_sync_epoch_time{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) min(milvus_datanode_sync_epoch_time{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_datanode_sync_epoch_time | The epoch time (Unix time, the milliseconds passed ever since January 1, 1970.) of each physical topic on a data node. |
| Unflushed Segment Num | The number of unflushed segments created on each data node. | sum(milvus_datanode_unflushed_segment_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (pod, node_id) | milvus_datanode_unflushed_segment_num | The number of unflushed segments created on each data node. |
| Encode Buffer Latency | The average latency and the 99th percentile of the time used to encode a buffer by each data node within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_datanode_encode_buffer_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_datanode_encode_buffer_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) / sum(increase(milvus_datanode_encode_buffer_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) | milvus_datanode_encode_buffer_latency | The time each data node takes to encode a buffer. |
| Save Data Latency | The average latency and the 99th percentile of the time used to write a buffer into the storage layer by each data node within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_datanode_save_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_datanode_save_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) / sum(increase(milvus_datanode_save_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) | milvus_datanode_save_latency | The time each data node takes to write a buffer into the storage layer. |
| Flush Operate Rate | The number of times each data node flushes a buffer per second within the past two minutes. | sum(increase(milvus_datanode_flush_buffer_op_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by (status, pod, node_id) | milvus_datanode_flush_buffer_op_count | The accumulated number of times a data node flushes a buffer. |
| Autoflush Operate Rate | The number of times each data node auto-flushes a buffer per second within the past two minutes. | sum(increase(milvus_datanode_autoflush_buffer_op_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by (status, pod, node_id) | milvus_datanode_autoflush_buffer_op_count | The accumulated number of times a data node auto-flushes a buffer. |
| Flush Request Rate | The number of times each data node receives a buffer flush request per second within the past two minute. | sum(increase(milvus_datanode_flush_req_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by (status, pod, node_id) | milvus_datanode_flush_req_count | The accumulated number of times a data node receives a flush request from a data coord. |
| Compaction Latency | The average latency and the 99 the percentile of the time each data node takes to execute a compaction task within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_datanode_compaction_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_datanode_compaction_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) / sum(increase(milvus_datanode_compaction_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) | milvus_datanode_compaction_latency | The time each data node takes to execute a compaction task. |
Index coordinator
| Panel | Panel description | PromQL (Prometheus query language) | The Milvus metrics used | Milvus metrics description |
|---|---|---|---|---|
| Index Request Rate | The average number of index building requests received per second by index coord within the past two minutes. | sum(increase(milvus_indexcoord_indexreq_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by (status) | milvus_indexcoord_indexreq_count | The number of index building requests received by index coord. |
| Index Task Count | The count of all indexing tasks recorded by index coord in index metadata. | sum(milvus_indexcoord_indextask_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (index_task_status) | milvus_indexcoord_indextask_count | The count of all indexing tasks recorded by index coord in index metadata. |
| Index Node Num | The number of index nodes managed by index coord. | sum(milvus_indexcoord_indexnode_num{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}) by (app_kubernetes_io_instance) | milvus_indexcoord_indexnode_num | The number of index nodes managed by index coord. |
Index node
| Panel | Panel description | PromQL (Prometheus query language) | The Milvus metrics used | Milvus metrics description |
|---|---|---|---|---|
| Index Task Rate | The average number of index building tasks received by each index node per second within the past two minutes. | sum(increase(milvus_indexnode_index_task_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])/120) by (status, pod, node_id) | milvus_indexnode_index_task_count | The number of index building tasks received. |
| Load Field Latency | The average latency and the 99th percentile of the time used by each index node to load segment field data each time within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_indexnode_load_field_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_indexnode_load_field_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) / sum(increase(milvus_indexnode_load_field_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) | milvus_indexnode_load_field_latency | The time used by index node to load segment field data. |
| Decode Field Latency | The average latency and the 99th percentile of the time used by each index node to encode field data each time within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_indexnode_decode_field_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_indexnode_decode_field_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) / sum(increase(milvus_indexnode_decode_field_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) | milvus_indexnode_decode_field_latency | The time used to decode field data. |
| Build Index Latency | The average latency and the 99th percentile of the time used by each index node to build indexes within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_indexnode_build_index_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_indexnode_build_index_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) / sum(increase(milvus_indexnode_build_index_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) | milvus_indexnode_build_index_latency | The time used to build indexes. |
| Encode Index Latency | The average latency and the 99th percentile of the time used by each index node to encode index files within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_indexnode_encode_index_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_indexnode_encode_index_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) / sum(increase(milvus_indexnode_encode_index_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) | milvus_indexnode_encode_index_latency | The time used to encode index files. |
| Save Index Latency | The average latency and the 99th percentile of the time used by each index node to save index files within the past two minutes. | p99: histogram_quantile(0.99, sum by (le, pod, node_id) (rate(milvus_indexnode_save_index_latency_bucket{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m]))) avg: sum(increase(milvus_indexnode_save_index_latency_sum{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) / sum(increase(milvus_indexnode_save_index_latency_count{app_kubernetes_io_instance=~"$instance", app_kubernetes_io_name="$app_name", namespace="$namespace"}[2m])) by(pod, node_id) | milvus_indexnode_save_index_latency | The time used to save index files. |