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- Product Introduction
- Operation Guide
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- Prometheus Monitoring
- Product Introduction
- Access Guide
- Scrape Configuration Description
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- Go Application Integration
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- Redis Exporter Integration
- MySQL Exporter Integration
- Consul Exporter Integration
- Memcached Exporter Integration
- Apache Exporter Integration
- Integration with Other Exporters
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- Health Check
- Cloud Monitoring
- Read Cloud-Hosted Prometheus Instance Data via Remote Read
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- Introduction
- API Category
- Making API Requests
- Alarm APIs
- DescribeAlarmPolicies
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- DescribeAlarmHistories
- CreateAlarmPolicy
- DeleteAlarmPolicy
- DescribeAlarmPolicy
- ModifyAlarmPolicyStatus
- SetDefaultAlarmPolicy
- BindingPolicyObject
- UnBindingPolicyObject
- UnBindingAllPolicyObject
- ModifyAlarmPolicyCondition
- ModifyAlarmPolicyNotice
- ModifyAlarmPolicyTasks
- DescribeMonitorTypes
- DescribeAllNamespaces
- DescribeAlarmEvents
- DescribeBindingPolicyObjectList
- ModifyAlarmPolicyInfo
- DescribeConditionsTemplateList
- Notification Template APIs
- Monitoring Data Query APIs
- Legacy Alert APIs
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- DescribePrometheusInstanceUsage
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- CreateServiceDiscovery
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- UpdateAlertRule
- DescribeAlertRules
- DeleteAlertRules
- CreateAlertRule
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- UpgradeGrafanaDashboard
- UpdatePrometheusScrapeJob
- UpdatePrometheusAgentStatus
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- ModifyPrometheusInstanceAttributes
- GetPrometheusAgentManagementCommand
- DestroyPrometheusInstance
- DescribePrometheusScrapeJobs
- DescribePrometheusAgents
- DescribeExporterIntegrations
- DeletePrometheusScrapeJobs
- DeleteExporterIntegration
- CreatePrometheusScrapeJob
- CreatePrometheusAgent
- CreateExporterIntegration
- BindPrometheusManagedGrafana
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- DescribeRecordingRules
- DeleteRecordingRules
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- UpdateSSOAccount
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- UninstallGrafanaPlugins
- ResumeGrafanaInstance
- ModifyGrafanaInstance
- InstallPlugins
- EnableSSOCamCheck
- EnableGrafanaSSO
- EnableGrafanaInternet
- DescribeSSOAccount
- DescribeInstalledPlugins
- DescribeGrafanaWhiteList
- DescribeGrafanaNotificationChannels
- DescribeGrafanaIntegrations
- DescribeGrafanaInstances
- DescribeGrafanaEnvironments
- DescribeGrafanaConfig
- DescribeDNSConfig
- DeleteSSOAccount
- DeleteGrafanaNotificationChannel
- DeleteGrafanaIntegration
- DeleteGrafanaInstance
- CreateSSOAccount
- CreateGrafanaNotificationChannel
- CreateGrafanaIntegration
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- CleanGrafanaInstance
- DescribeGrafanaChannels
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- TencentCloud Managed Service for Prometheus APIs
- CreatePrometheusTemp
- CreatePrometheusAlertPolicy
- CreatePrometheusClusterAgent
- CreatePrometheusGlobalNotification
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- DeletePrometheusTempSync
- DeletePrometheusAlertPolicy
- DeletePrometheusClusterAgent
- DescribePrometheusAgentInstances
- DescribePrometheusAlertPolicy
- DescribePrometheusInstanceDetail
- DescribePrometheusClusterAgents
- DescribePrometheusInstanceInitStatus
- DescribePrometheusGlobalConfig
- DescribePrometheusInstancesOverview
- DescribePrometheusGlobalNotification
- DescribePrometheusRecordRules
- DescribePrometheusTemp
- DescribePrometheusTempSync
- DescribePrometheusTargetsTMP
- ModifyPrometheusTemp
- ModifyPrometheusAgentExternalLabels
- ModifyPrometheusAlertPolicy
- ModifyPrometheusGlobalNotification
- RunPrometheusInstance
- DescribeClusterAgentCreatingProgress
- SyncPrometheusTemp
- Monitoring APIs
- Data Types
- Error Codes
- FAQs
- Alarm Management
- Documentation Guide
- Related Agreements
- Glossary
- EventBridge
- Release Notes and Announcements
- Product Introduction
- Purchase Guide
- Application Performance Management
- Mobile App Performance Monitoring
- Real User Monitoring
- Cloud Automated Testing
- Prometheus Monitoring
- Grafana
- EventBridge
- Quick Start
- Cloud Product Monitoring
- Tencent Cloud Service Metrics
- CVM
- TKE
- Microservice
- Networking
- CBS
- TencentDB
- TencentDB for SQL Server Monitoring Metrics
- TencentDB for MySQL Monitoring Metrics
- TencentDB for Redis Monitoring Metrics
- TencentDB for MongoDB Monitoring Metrics
- TencentDB for PostgreSQL Monitoring Metrics
- TDSQL-C for MySQL Monitoring Metrics
- TencentDB for TcaplusDB Monitoring Metrics
- TencentDB for MariaDB Monitoring Metrics
- TDSQL for MySQL Monitoring Metrics (Legacy)
- TDSQL for MySQL Monitoring Metrics
- SCF
- CKafka
- TDMQ
- CLB
- COS
- CFS
- CPM
- ECM
- CDN And EdgeOne
- Direct Connect
- GAAP
- CMQ
- Elasticsearch
- WAF
- CLS
- Data Analysis
- Operation Guide
- CVM Agents
- CM Connection to Grafana
- Troubleshooting
- Practical Tutorial
- Tencent Cloud Service Metrics
- Application Performance Management
- Product Introduction
- Access Guide
- Operation Guide
- Practical Tutorial
- Parameter Information
- FAQs
- Mobile App Performance Monitoring
- Tencent Cloud Real User Monitoring
- Product Introduction
- Operation Guide
- Connection Guide
- FAQs
- Cloud Automated Testing
- Prometheus Monitoring
- Product Introduction
- Access Guide
- Scrape Configuration Description
- Custom Monitoring
- EMR Integration
- Java Application Integration
- Go Application Integration
- Exporter Integration
- Elasticsearch Exporter Integration
- Kafka Exporter Integration
- MongoDB Exporter Integration
- PostgreSQL Exporter Integration
- NGINX Exporter Integration
- Redis Exporter Integration
- MySQL Exporter Integration
- Consul Exporter Integration
- Memcached Exporter Integration
- Apache Exporter Integration
- Integration with Other Exporters
- CVM Node Exporter
- Health Check
- Cloud Monitoring
- Read Cloud-Hosted Prometheus Instance Data via Remote Read
- Agent Self-Service Access
- Pushgateway Integration
- Instructions for Installing Components in the TKE Cluster
- Security Group Open Description
- Operation Guide
- Practical Tutorial
- Terraform
- FAQs
- Grafana
- Dashboard
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Alarm APIs
- DescribeAlarmPolicies
- DescribeAlarmMetrics
- DescribeAlarmHistories
- CreateAlarmPolicy
- DeleteAlarmPolicy
- DescribeAlarmPolicy
- ModifyAlarmPolicyStatus
- SetDefaultAlarmPolicy
- BindingPolicyObject
- UnBindingPolicyObject
- UnBindingAllPolicyObject
- ModifyAlarmPolicyCondition
- ModifyAlarmPolicyNotice
- ModifyAlarmPolicyTasks
- DescribeMonitorTypes
- DescribeAllNamespaces
- DescribeAlarmEvents
- DescribeBindingPolicyObjectList
- ModifyAlarmPolicyInfo
- DescribeConditionsTemplateList
- Notification Template APIs
- Monitoring Data Query APIs
- Legacy Alert APIs
- Prometheus Service APIs
- DescribePrometheusInstanceUsage
- DescribeServiceDiscovery
- CreateServiceDiscovery
- UpdateAlertRuleState
- UpdateAlertRule
- DescribeAlertRules
- DeleteAlertRules
- CreateAlertRule
- DescribePrometheusInstances
- UpgradeGrafanaDashboard
- UpdatePrometheusScrapeJob
- UpdatePrometheusAgentStatus
- UpdateExporterIntegration
- UninstallGrafanaDashboard
- UnbindPrometheusManagedGrafana
- TerminatePrometheusInstances
- ModifyPrometheusInstanceAttributes
- GetPrometheusAgentManagementCommand
- DestroyPrometheusInstance
- DescribePrometheusScrapeJobs
- DescribePrometheusAgents
- DescribeExporterIntegrations
- DeletePrometheusScrapeJobs
- DeleteExporterIntegration
- CreatePrometheusScrapeJob
- CreatePrometheusAgent
- CreateExporterIntegration
- BindPrometheusManagedGrafana
- UpdateRecordingRule
- DescribeRecordingRules
- DeleteRecordingRules
- CreateRecordingRule
- CreatePrometheusMultiTenantInstancePostPayMode
- DescribePrometheusZones
- Grafana Service APIs
- UpgradeGrafanaInstance
- UpdateSSOAccount
- UpdateGrafanaWhiteList
- UpdateGrafanaNotificationChannel
- UpdateGrafanaIntegration
- UpdateGrafanaEnvironments
- UpdateGrafanaConfig
- UpdateDNSConfig
- UninstallGrafanaPlugins
- ResumeGrafanaInstance
- ModifyGrafanaInstance
- InstallPlugins
- EnableSSOCamCheck
- EnableGrafanaSSO
- EnableGrafanaInternet
- DescribeSSOAccount
- DescribeInstalledPlugins
- DescribeGrafanaWhiteList
- DescribeGrafanaNotificationChannels
- DescribeGrafanaIntegrations
- DescribeGrafanaInstances
- DescribeGrafanaEnvironments
- DescribeGrafanaConfig
- DescribeDNSConfig
- DeleteSSOAccount
- DeleteGrafanaNotificationChannel
- DeleteGrafanaIntegration
- DeleteGrafanaInstance
- CreateSSOAccount
- CreateGrafanaNotificationChannel
- CreateGrafanaIntegration
- CreateGrafanaInstance
- CleanGrafanaInstance
- DescribeGrafanaChannels
- Event Center APIs
- TencentCloud Managed Service for Prometheus APIs
- CreatePrometheusTemp
- CreatePrometheusAlertPolicy
- CreatePrometheusClusterAgent
- CreatePrometheusGlobalNotification
- DeletePrometheusTemp
- DeletePrometheusTempSync
- DeletePrometheusAlertPolicy
- DeletePrometheusClusterAgent
- DescribePrometheusAgentInstances
- DescribePrometheusAlertPolicy
- DescribePrometheusInstanceDetail
- DescribePrometheusClusterAgents
- DescribePrometheusInstanceInitStatus
- DescribePrometheusGlobalConfig
- DescribePrometheusInstancesOverview
- DescribePrometheusGlobalNotification
- DescribePrometheusRecordRules
- DescribePrometheusTemp
- DescribePrometheusTempSync
- DescribePrometheusTargetsTMP
- ModifyPrometheusTemp
- ModifyPrometheusAgentExternalLabels
- ModifyPrometheusAlertPolicy
- ModifyPrometheusGlobalNotification
- RunPrometheusInstance
- DescribeClusterAgentCreatingProgress
- SyncPrometheusTemp
- Monitoring APIs
- Data Types
- Error Codes
- FAQs
- Alarm Management
- Documentation Guide
- Related Agreements
- Glossary
- EventBridge
Overview
Many causes can lead to CVM login failure. Causes that can be monitored by Tencent Cloud Observability Platform include overly high CVM bandwidth usage and overly high CVM CPU/memory usage. This document describes how to troubleshoot these two causes.
Problem Analysis
The following causes of CVM login failure can be detected by Tencent Cloud Observability Platform:
Note:
Before troubleshooting, check whether the login attempt failed because the entered password was incorrect, you forgot the password, or the password failed to reset.
If yes, reset the password.
Solutions
CVM bandwidth utilization is too high
Problem: the self-diagnosis tool shows that bandwidth utilization is too high.
Solutions:
1. Log in to the CVM instance via VNC.
2. Check the bandwidth utilization of the instance and troubleshoot accordingly. For more information, see CVM Bandwidth Utilization Is Too High.
CVM CPU/memory usage is too high
Problem: the self-diagnosis tool or Tencent Cloud Observability Platform shows that the CPU/memory usage of the CVM instance is too high, and therefore the system cannot establish a remote connection or the connectivity is poor.
Possible causes: viruses, trojans, third-party anti-virus software, application exceptions, driver exceptions, and automatic software backend updates may lead to high CPU usage, resulting in CVM login failure or slow access.
Solutions:
1. Log in to the CVM instance via VNC.
2. Refer to CVM CPU/Memory Usage Is Too High to identify the process with a high load on the Task Manager page.
Note:
Many causes may lead to CVM login failure. For more information on other causes, see Windows Instance Login Failures or Linux Instance Login Failures.
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