Consolidated Troubleshooting Article OpenShift Container Platform 4.x
Updated
Table of Contents
OpenShift 4.x Troubleshooting Quick Reference
General Troubleshooting
- Troubleshooting OpenShift Container Platform 4.x: Installation
- Checking the Cluster Version and Component Versions on OpenShift 4.x
- Getting OpenShift 4.x Global Configurations
- OpenShift Application Introspection and Debugging with 4.x
- Exploring Application Endpoints for the purposes of Debugging with OpenShift 4.x
- How to connect to OpenShift Container Platform 4.x Cluster nodes using ssh bastion pod?
- How to collect worker metrics do troubleshoot CPU load, memory pressure and interrupt issues and networking on worker nodes in Red Hat OpenShift Container Platform 4.x
Troubleshooting OpenShift Components
- Consolidated Article for etcd guidelines with OpenShift Container Platform 4.x
- Consolidated Article on Configuring Log Levels for Different Components in OpenShift Container Platform 4
- Consolidated Troubleshooting Article for OpenShift Container Platform (OCP) 4: Certificates
- Troubleshooting OpenShift Container Platform 4.x: Authentication
- Troubleshooting OpenShift Container Platform 4.x: Image Registry Operator
- Troubleshooting OpenShift Container Platform 4.x: cluster-network-operator
- Troubleshooting OpenShift Container Platform 4.x: ovn-kubernetes
- Troubleshooting OpenShift Container Platform 4.x: openshift-sdn
- Troubleshooting OpenShift Container Platform 4.x: Machine Scaling
- Troubleshooting OpenShift Container Platform 4.x: Upgrade Issues
- Troubleshooting OpenShift Container Platform 4.x: Service Mesh
- Troubleshooting OpenShift Container Platform 4.x: machine-config operator
- Troubleshooting OpenShift Container Platform 4.x: Performance Addon Operator for low latency pods (guaranteed QoS and IRQ balancing)
- Troubleshooting OpenShift Container Platform 4.x: Operator Lifecycle Manager (OLM)
- Troubleshooting OpenShift Container Platform 4.x: Cluster Logging with Elasticsearch and Fluentd
- Troubleshooting OpenShift Container Platform 4.x: Vector Log Collector
- Troubleshooting OpenShift Container Platform 4.x: Storage
- This content is not included.Troubleshooting OpenShift sandboxed containers
- Troubleshooting OCP on RHV deployments
- Troubleshooting OpenShift Container Platform 4.x: Node NotReady
- Node: gathering a sosreport without SSH in OCP 4
- Node: kubelet: How to gather a Kubelet performance profile
- Node: storage: When a node has DiskPressure events, how to find which Pod is using the most local disk space ?
- Node: kubelet / CRI-O: OpenShift nodes NotReady due to "PLEG is not healthy" issue
- Node: CRI-O: How to troubleshoot CRI-O and gather a go routine stack
- Node: CRI-O: How to gather a coredump
- Node: CRI-O: How can I collect a performance profile
- Node: CRI-O: How to configure CRI-O logLevel in OpenShift 4?
- Node: CRI-O: How to to collect active CRI-O configuration?
OpenShift How Tos
- Must-Gather tool for collecting critical information
- Running must-gather with more details for specific use cases
- How do I generate sosreport in Red Hat Enterprise Linux CoreOS 4.x?
- How to raise apiserver and kube-apiserver loglevels in Openshift 4
- How to raise SDN loglevel in Openshift 4
- Checking the version of Red Hat CoreOS
- Getting Journal Logs from the OpenShift 4.x Kubelet
- Collecting a Network Trace in Red Hat Enterprise Linux CoreOS
- How to download Image Signatures within OpenShift 4
- How to check which Node Tuning profiles are applied on every node
- How to Assign Static IP Address to RHCOS Nodes on OpenShift 4
- How to Upgrade OpenShift 4 between different minor versions via "oc" cli
- How to deploy OpenShift 4 with a custom subdomain for applications
- How to provision local volumes only for infra nodes using the local-storage-operator
- How to open a PROACTIVE case for patching or upgrading Red Hat OpenShift Container Platform
- How to list internal registry repositories and images in OpenShift 4
- How to update community-operators in a disconnected OCP4
- How to clean crio ephemeral-storage
- How to create custom Metering reports based on project labels
- Need to transfer ownership of an OpenShift Container Platform 4 cluster
- How to collect audit logs from master nodes in Red Hat OpenShift Container Platform 4.x
- How to rebuild all OpenShift-OVN-Kubernetes pods in Red Hat OpenShift Container Platform 4.x
- This content is not included.How to install Red Hat Service Mesh v1.1.10 using the CLI
- How to manually apply Hive DB retention period for Metering (NOTE: Metering is deprecated)
- How to start Red Hat CoreOS (RHCOS) in emergency mode (single user mode)
- How to set up a temporary monitoring system to check the health of the load balancer provisioned outside the cluster for external applications, as well as the ingress routers in RHOCP 4?
OpenShift FAQ
- What versions of different OpenShift components have been tested?
- When are Container Images Updated?
- What is the OpenShift Container Platform Life Cycle Policy?
- What Red Hat Operators are Supported in Disconnected Mode
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