Manage TiUP Components with TiUP Commands
You can use the following TiUP commands to manage components in the TiUP ecosystem:
- list: Queries the component list. By using this TiUP command, you can see all the optional components to install and all the optional versions of each component.
- install: Installs the specific version of a component.
- update: Updates a component to the latest version.
- uninstall: Uninstalls a component.
- status: Checks the status of a running component.
- clean: Cleans up the instance on which a component is deployed.
- help: Prints the help information. If you append another TiUP command to this command, the usage of the appended command is printed.
This document introduces the common component management operations and the corresponding TiUP commands.
Query the component list
You can use the tiup list
command to query the component list. This usage of this command is as follows:
tiup list
: checks which components can be installed.tiup list ${component}
: checks which versions of a specific component can be installed.
You can also use the following flags in the above commands:
--installed
: checks which components or which version of a specific component has been installed locally. ---all
: views all components, including the hidden ones ---verbose
: views all columns (including installed versions and supported platforms)
Example 1: View all currently installed components.
tiup list --installed
Example 2: Get a list of the TiKV component of all installable versions from the server.
tiup list tikv
Install components
You can use the tiup install
command to query the component list. This usage of this command is as follows:
tiup install <component>
: installs the latest stable version of a specified component.tiup install <component>:[version]
: installs the specified version of a specified component.
Example 1: Use TiUP to install the latest stable version of TiDB.
tiup install tidb
Example 2: Use TiUP to install the nightly version of TiDB.
tiup install tidb:nightly
Example 3: Use TiUP to install TiKV v6.5.11.
tiup install tikv:v6.5.11
Upgrade components
After a new version of a component is published, you can use the tiup update
command to upgrade this component. The usage of this command is basically the same as that of tiup install
, except for the following flags:
--all
: Upgrades all components.--nightly
: Upgrades to the nightly version.--self
: Upgrades TiUP itself to the latest version.--force
: Forcibly upgrades to the latest version.
Example 1: Upgrade all components to the latest versions.
tiup update --all
Example 2: Upgrade all components to the nightly version.
tiup update --all --nightly
Example 3: Upgrade TiUP to the latest version.
tiup update --self
Operate components
After the installation is complete, you can use the tiup <component>
command to start the corresponding component:
tiup [flags] <component>[:version] [args...]
Flags:
-T, --tag string Specifies the tag for the component instance.
To use this command, you need to specify the component name and the optional version. If no version is specified, the latest stable version (installed) of this component is used.
Before the component is started, TiUP creates a directory for it, and then puts this component into the directory for operation. The component generates all the data in this directory, and the name of this directory is the tag name specified when the component operates. If no tag is specified, a tag name is randomly generated. This working directory will be automatically deleted when the instance is terminated.
If you want to start the same component multiple times and reuse the previous working directory, you can use --tag
to specify the same name when the component is started. After the tag is specified, the working directory will not be automatically deleted when the instance is terminated, which makes it convenient to reuse the working directory.
Example 1: Operate TiDB v6.5.11.
tiup tidb:v6.5.11
Example 2: Specify the tag with which TiKV operates.
tiup --tag=experiment tikv
Query the operating status of a component
You can use the tiup status
command to check the operating status of a component:
tiup status
By executing this command, you will get a list of instances, one instance per line. The list contains the following columns:
Name
: The tag name of the instance.Component
: The component name of the instance.PID
: The process ID of the operating instance.Status
: The instance status.RUNNING
means that the instance is operating.TERM
means that the instance is terminated.Created Time
: The starting time of the instance.Directory
: The working directory of the instance, which can be specified using--tag
.Binary
: The executable program of the instance, which can be specified using--binpath
.Args
: The arguments of the operating instance.
Clean component instance
You can use the tiup clean
command to clean up component instances and delete the working directory. If the instance is still operating before the cleaning, the related process is killed first. The command usage is as follows:
tiup clean [tag] [flags]
The following flag is supported:
--all
: Cleans up all instance information.
In the above command, tag
is the instance tag to be cleaned. If --all
is used, no tag is passed.
Example 1: Clean up the component instance with the experiment
tag name.
tiup clean experiment
Example 2: Clean up all component instances.
tiup clean --all
Uninstall components
The components installed using TiUP take up local disk space. If you do not want to keep too many components of old versions, you can check which versions of a component are currently installed, and then uninstall this component.
You can use the tiup uninstall
command to uninstall all versions or specific versions of a component. This command also supports uninstalling all components. The command usage is as follows:
tiup uninstall [component][:version] [flags]
The following flags are supported in this command:
--all
: Uninstalls all components or versions.--self
: Uninstalls TiUP itself.
component
is the component to be uninstalled. version
is the version to be uninstalled. Both component
and version
can be ignored in the tiup uninstall
command. If you ignore either one of these two, you need to add the --all
flag.
- If the version is ignored, adding
--all
means to uninstall all versions of this component. - If the version and the component are both ignored, adding
--all
means to uninstall all components of all versions.
Example 1: Uninstall TiDB v6.5.11.
tiup uninstall tidb:v6.5.11
Example 2: Uninstall TiKV of all versions.
tiup uninstall tikv --all
Example 3: Uninstall all installed components.
tiup uninstall --all