github.com/1aal/kubeblocks@v0.0.0-20231107070852-e1c03e598921/docs/user_docs/cli/kbcli_fault_io_mistake.md (about) 1 --- 2 title: kbcli fault io mistake 3 --- 4 5 Alters the contents of the file, distorting the contents of the file. 6 7 ``` 8 kbcli fault io mistake [flags] 9 ``` 10 11 ### Examples 12 13 ``` 14 # Affects the first container in default namespace's all pods. Delay all IO operations under the /data path by 10s. 15 kbcli fault io latency --delay=10s --volume-path=/data 16 17 # Affects the first container in mycluster-mysql-0 pod. 18 kbcli fault io latency mycluster-mysql-0 --delay=10s --volume-path=/data 19 20 # Affects the mysql container in mycluster-mysql-0 pod. 21 kbcli fault io latency mycluster-mysql-0 --delay=10s --volume-path=/data -c=mysql 22 23 # There is a 50% probability of affecting the read IO operation of the test.txt file under the /data path. 24 kbcli fault io latency mycluster-mysql-0 --delay=10s --volume-path=/data --path=test.txt --percent=50 --method=READ -c=mysql 25 26 # Same as above.Make all IO operations under the /data path return the specified error number 22 (Invalid argument). 27 kbcli fault io errno --volume-path=/data --errno=22 28 29 # Same as above.Modify the IO operation permission attribute of the files under the /data path to 72.(110 in octal). 30 kbcli fault io attribute --volume-path=/data --perm=72 31 32 # Modify all files so that random positions of 1's with a maximum length of 10 bytes will be replaced with 0's. 33 kbcli fault io mistake --volume-path=/data --filling=zero --max-occurrences=10 --max-length=1 34 ``` 35 36 ### Options 37 38 ``` 39 --annotation stringToString Select the pod to inject the fault according to Annotation. (default []) 40 -c, --container stringArray The name of the container, such as mysql, prometheus.If it's empty, the first container will be injected. 41 --dry-run string[="unchanged"] Must be "client", or "server". If with client strategy, only print the object that would be sent, and no data is actually sent. If with server strategy, submit the server-side request, but no data is persistent. (default "none") 42 --duration string Supported formats of the duration are: ms / s / m / h. (default "10s") 43 --filling string The filling content of the error data can only be zero (filling with 0) or random (filling with random bytes). 44 -h, --help help for mistake 45 --label stringToString label for pod, such as '"app.kubernetes.io/component=mysql, statefulset.kubernetes.io/pod-name=mycluster-mysql-0. (default []) 46 --max-length int The maximum length (in bytes) of each error. (default 1) 47 --max-occurrences int The maximum number of times an error can occur per operation. (default 1) 48 --method stringArray The file system calls that need to inject faults. For example: WRITE READ 49 --mode string You can select "one", "all", "fixed", "fixed-percent", "random-max-percent", Specify the experimental mode, that is, which Pods to experiment with. (default "all") 50 --node stringArray Inject faults into pods in the specified node. 51 --node-label stringToString label for node, such as '"kubernetes.io/arch=arm64,kubernetes.io/hostname=minikube-m03,kubernetes.io/os=linux. (default []) 52 --ns-fault stringArray Specifies the namespace into which you want to inject faults. (default [default]) 53 -o, --output format Prints the output in the specified format. Allowed values: JSON and YAML (default yaml) 54 --path string The effective scope of the injection error can be a wildcard or a single file. 55 --percent int Probability of failure per operation, in %. (default 100) 56 --phase stringArray Specify the pod that injects the fault by the state of the pod. 57 --value string If you choose mode=fixed or fixed-percent or random-max-percent, you can enter a value to specify the number or percentage of pods you want to inject. 58 --volume-path string The mount point of the volume in the target container must be the root directory of the mount. 59 ``` 60 61 ### Options inherited from parent commands 62 63 ``` 64 --as string Username to impersonate for the operation. User could be a regular user or a service account in a namespace. 65 --as-group stringArray Group to impersonate for the operation, this flag can be repeated to specify multiple groups. 66 --as-uid string UID to impersonate for the operation. 67 --cache-dir string Default cache directory (default "$HOME/.kube/cache") 68 --certificate-authority string Path to a cert file for the certificate authority 69 --client-certificate string Path to a client certificate file for TLS 70 --client-key string Path to a client key file for TLS 71 --cluster string The name of the kubeconfig cluster to use 72 --context string The name of the kubeconfig context to use 73 --disable-compression If true, opt-out of response compression for all requests to the server 74 --insecure-skip-tls-verify If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure 75 --kubeconfig string Path to the kubeconfig file to use for CLI requests. 76 --match-server-version Require server version to match client version 77 -n, --namespace string If present, the namespace scope for this CLI request 78 --request-timeout string The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't timeout requests. (default "0") 79 -s, --server string The address and port of the Kubernetes API server 80 --tls-server-name string Server name to use for server certificate validation. If it is not provided, the hostname used to contact the server is used 81 --token string Bearer token for authentication to the API server 82 --user string The name of the kubeconfig user to use 83 ``` 84 85 ### SEE ALSO 86 87 * [kbcli fault io](kbcli_fault_io.md) - IO chaos. 88 89 #### Go Back to [CLI Overview](cli.md) Homepage. 90