What Can I Do If the Container Network Becomes Unavailable After yum update Is Used to Upgrade the OS?
The CCE console does not support OS upgrades on a node. You are advised not to upgrade the OS using the yum update command.
If you upgrade the OS using yum update, the container networking will be unavailable.
Perform the following operations to restore the container network:
This restoration method is valid only for EulerOS 2.2.
- Run the following script as user root:
#!/bin/bash function upgrade_kmod() { openvswicth_mod_path=$(rpm -qal openvswitch-kmod) rpm_version=$(rpm -qal openvswitch-kmod|grep -w openvswitch|head -1|awk -F "/" '{print $4}') sys_version=`cat /boot/grub2/grub.cfg | grep EulerOS|awk 'NR==1{print $3}' | sed 's/[()]//g'` if [[ "${rpm_version}" != "${sys_version}" ]];then mkdir -p /lib/modules/"${sys_version}"/extra/openvswitch for path in ${openvswicth_mod_path[@]};do name=$(echo "$path" | awk -F "/" '{print $NF}') rm -f /lib/modules/"${sys_version}"/updates/"${name}" rm -f /lib/modules/"${sys_version}"/extra/openvswitch/"${name}" ln -s "${path}" /lib/modules/"${sys_version}"/extra/openvswitch/"${name}" done fi depmod ${sys_version} } upgrade_kmod
- Restart the VM.
Helpful Links
Node Running FAQs
- What Should I Do If a Cluster Is Available But Some Nodes Are Unavailable?
- How Do I Troubleshoot the Failure to Remotely Log In to a Node in a CCE Cluster?
- How Do I Log In to a Node Using a Password and Reset the Password?
- How Do I Collect Logs of Nodes in a CCE Cluster?
- What Can I Do If the Container Network Becomes Unavailable After yum update Is Used to Upgrade the OS?
- What Should I Do If the vdb Disk of a Node Is Damaged and the Node Cannot Be Recovered After Reset?
- Which Ports Are Used to Install kubelet on CCE Cluster Nodes?
- How Do I Configure a Pod to Use the Acceleration Capability of a GPU Node?
- What Should I Do If I/O Suspension Occasionally Occurs When SCSI EVS Disks Are Used?
- What Should I Do If Excessive Docker Audit Logs Affect the Disk I/O?
- How Do I Fix an Abnormal Container or Node Due to No Thin Pool Disk Space?
- Which Ports Does a Node Listen On?
- How Do I Rectify Failures When the NVIDIA Driver Is Used to Start Containers on GPU Nodes?
- What Should I Do If a Node Does Not Synchronize with the NTP Clock Source?
- What Should I Do If the Data Disk Usage Is High Because a Large Volume of Data Is Written Into the Log File?
- Why Does My Node Memory Usage Obtained by Running the kubelet top node Command Exceeds 100%?
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