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Polish docs (#10073)
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‎docs/en/setup/backend/backend-k8s-network-monitoring.md

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# Kubernetes Network monitoring
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SkyWalking leverages [SkyWalking Rover](https://github.com/apache/skywalking-rover) [network profiling feature](https://skywalking.apache.org/docs/skywalking-rover/next/en/setup/configuration/profiling/#network) for collecting metrics data from the network. SkyWalking Rover converts data from socket data to metrics using eBPF technology.
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SkyWalking leverages [SkyWalking Rover](https://github.com/apache/skywalking-rover) [network profiling feature](https://skywalking.apache.org/docs/skywalking-rover/next/en/setup/configuration/profiling/#network)
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to measure network performance for particular pods on-demand, including metrics of L4(TCP) and L7(HTTP) traffic
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and raw data of HTTP requests and responses.
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Underlying, SkyWalking Rover converts data from socket data to metrics using eBPF technology.
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## Data flow
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1. SkyWalking OAP server observes which specific k8s pod needs to monitor the network.

‎docs/en/setup/backend/dashboards-so11y.md

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### Self observability metrics
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| Monitoring Panel | Unit | Metric Name | Description | Data Source |
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|-----|------|-----|-----|-----|
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| | Count Per Minute | meter_oap_instance_jvm_gc_count | GC Count | oap self observability |
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| | MB | meter_oap_instance_jvm_memory_bytes_used | Memory | oap self observability |
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| | ms / min | meter_oap_instance_jvm_young_gc_time | GC Time (ms / min) | oap self observability |
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| | ms / min | meter_oap_instance_jvm_old_gc_time | GC Time (ms / min) | oap self observability |
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| | Count Per Minute | meter_oap_instance_mesh_count | Mesh Analysis Count (Per Minute) | oap self observability |
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| | Count Per Minute | meter_oap_instance_mesh_analysis_error_count | Mesh Analysis Count (Per Minute) | oap self observability |
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| | ms | meter_oap_instance_trace_latency_percentile | Trace Analysis Latency (ms) | oap self observability |
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| | Count | meter_oap_jvm_class_loaded_count | Class Count | oap self observability |
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| | Count | meter_oap_jvm_class_total_unloaded_count | Class Count | oap self observability |
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| | Count | meter_oap_jvm_class_total_loaded_count | Class Count | oap self observability |
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| | Count | meter_oap_instance_persistence_prepare_count | Persistence Count (Per 5 Minutes) | oap self observability |
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| | Count | meter_oap_instance_persistence_execute_count | Persistence Count (Per 5 Minutes) | oap self observability |
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| | Count | meter_oap_jvm_thread_live_count | Thread Count | oap self observability |
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| | Count | meter_oap_jvm_thread_peak_count | Thread Count | oap self observability |
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| | Count | meter_oap_jvm_thread_daemon_count | Thread Count | oap self observability |
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| | ms | meter_oap_instance_persistence_execute_percentile | Persistence Execution Latency Per Metric Type (ms) | oap self observability |
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| | ms | meter_oap_instance_persistence_prepare_percentile | Persistence Preparing Latency Per Metric Type (ms) | oap self observability |
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| | Count | meter_oap_jvm_thread_runnable_count | Thread State Count | oap self observability |
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| | Count | meter_oap_jvm_thread_timed_waiting_count | Thread State Count | oap self observability |
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| | Count | meter_oap_jvm_thread_blocked_count | Thread State Count | oap self observability |
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| | Count | meter_oap_jvm_thread_waiting_count | Thread State Count | oap self observability |
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| | Count per minute | meter_oap_instance_metrics_aggregation | Aggregation (Per Minute) | oap self observability |
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| | ms | meter_oap_instance_mesh_latency_percentile | Mesh Analysis Latency (ms) | oap self observability |
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| | Count per minute | meter_oap_instance_trace_count | Trace Analysis Count (Per Minute) | oap self observability |
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| | Count per minute | meter_oap_instance_trace_analysis_error_count | Trace Analysis Count (Per Minute) | oap self observability |
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| | Percentage | meter_oap_instance_cpu_percentage | CPU (%) | oap self observability |
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| Unit | Metric Name | Description | Data Source |
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|------|---------------------------------------------------|-----|-----|
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| Count Per Minute | meter_oap_instance_jvm_gc_count | GC Count | oap self observability |
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| MB | meter_oap_instance_jvm_memory_bytes_used | Memory | oap self observability |
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| ms / min | meter_oap_instance_jvm_young_gc_time | GC Time (ms / min) | oap self observability |
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| ms / min | meter_oap_instance_jvm_old_gc_time | GC Time (ms / min) | oap self observability |
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| Count Per Minute | meter_oap_instance_mesh_count | Mesh Analysis Count (Per Minute) | oap self observability |
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| Count Per Minute | meter_oap_instance_mesh_analysis_error_count | Mesh Analysis Count (Per Minute) | oap self observability |
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| ms | meter_oap_instance_trace_latency_percentile | Trace Analysis Latency (ms) | oap self observability |
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| Count | meter_oap_jvm_class_loaded_count | Class Count | oap self observability |
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| Count | meter_oap_jvm_class_total_unloaded_count | Class Count | oap self observability |
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| Count | meter_oap_jvm_class_total_loaded_count | Class Count | oap self observability |
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| Count | meter_oap_instance_persistence_prepare_count | Persistence Count (Per 5 Minutes) | oap self observability |
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| Count | meter_oap_instance_persistence_execute_count | Persistence Count (Per 5 Minutes) | oap self observability |
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| Count | meter_oap_jvm_thread_live_count | Thread Count | oap self observability |
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| Count | meter_oap_jvm_thread_peak_count | Thread Count | oap self observability |
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| Count | meter_oap_jvm_thread_daemon_count | Thread Count | oap self observability |
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| ms | meter_oap_instance_persistence_execute_percentile | Persistence Execution Latency Per Metric Type (ms) | oap self observability |
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| ms | meter_oap_instance_persistence_prepare_percentile | Persistence Preparing Latency Per Metric Type (ms) | oap self observability |
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| Count | meter_oap_jvm_thread_runnable_count | Thread State Count | oap self observability |
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| Count | meter_oap_jvm_thread_timed_waiting_count | Thread State Count | oap self observability |
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| Count | meter_oap_jvm_thread_blocked_count | Thread State Count | oap self observability |
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| Count | meter_oap_jvm_thread_waiting_count | Thread State Count | oap self observability |
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| Count per minute | meter_oap_instance_metrics_aggregation | Aggregation (Per Minute) | oap self observability |
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| ms | meter_oap_instance_mesh_latency_percentile | Mesh Analysis Latency (ms) | oap self observability |
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| Count per minute | meter_oap_instance_trace_count | Trace Analysis Count (Per Minute) | oap self observability |
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| Count per minute | meter_oap_instance_trace_analysis_error_count | Trace Analysis Count (Per Minute) | oap self observability |
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| Percentage | meter_oap_instance_cpu_percentage | CPU (%) | oap self observability |
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| Count | meter_oap_instance_metrics_persistent_cache | count of metrics cache hit and no-hit |oap self observability|
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## Customizations
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You can customize your own metrics/expression/dashboard panel.

‎docs/menu.yml

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path: "/en/setup/istio/readme"
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- name: "Observe Data Plane (Envoy)"
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path: "/en/setup/envoy/metrics_service_setting"
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- name: "Profile Pod's Network"
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path: "/en/setup/backend/backend-k8s-network-monitoring"
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- name: "Kubernetes"
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catalog:
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- name: "Observe Kubernetes"
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path: "/en/setup/backend/backend-k8s-monitoring"
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- name: "Observe Network"
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- name: "Profile Pod's Network"
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path: "/en/setup/backend/backend-k8s-network-monitoring"
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- name: "Infrastructure Monitoring"
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catalog:

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