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Add quorum commands to CLI #17570

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merged 2 commits into from
Jun 8, 2023
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@Xenorith Xenorith commented Jun 7, 2023

Add quorum/HA related commands as part of #17522

@Xenorith Xenorith added area-shell Alluxio Command Line Interface type-feature This issue is a feature request labels Jun 7, 2023
return c.Run(nil)
},
})
// TODO: to be consistent with other quorum commands, should this have a domain flag?
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@jenoudet job master isn't a true quorum so there's no election, but should this still take in a domain flag with MASTER being the only accepted value for now?

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The bash version of the command does not take a -domain parameter, and only operates on the MASTER domain. I think the go version of the command should work the same.

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i understand that's how the bash version works and not aiming to change anything for this PR, but for the future, i'd like to know if my statement is true which implies this command should also be domain specific. otherwise someone would wonder if the elect command applies to all domains which also makes no sense, thus leading to confusion

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Maybe it's worth adding a domain parameter in the future to keep things consistent. That would require implementing further logic on the Java side, but not a huge deal.

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i'd like to add it to the go side to maintain consistency even though it will not be passed along to the java command., so i'd be adding a required flag --domain with MASTER being the only accepted value. it sets the stage for future changes without any significant impact besides forcing the user to know which domain they are triggering (which i say is a good thing)

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Sounds good!

},
})
const domain = "domain"
cmd.Flags().StringVar(&c.Domain, domain, "", "")
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Add a description saying it must be either "MASTER" or "JOB_MASTER".

return c.Run(nil)
},
})
// TODO: to be consistent with other quorum commands, should this have a domain flag?
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The bash version of the command does not take a -domain parameter, and only operates on the MASTER domain. I think the go version of the command should work the same.

},
})
const address, domain = "address", "domain"
cmd.Flags().StringVar(&c.Domain, domain, "", "")
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Add description about possible domains as well, same as for info.

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We could start implementing the validation using the validator package. I've left some comments and examples of its use. wdyt?

if err := cmd.MarkFlagRequired(address); err != nil {
panic(err)
}
return cmd
}

func (c *ElectCommand) Run(_ []string) error {
return c.Base().Run([]string{"elect", "-address", c.ServerAddress})
if err := checkDomain(c.QuorumCommand.domain, c.QuorumCommand.allowedDomains...); err != nil {
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for validation I think a better tool would be https://github.com/go-playground/validator.
you can use the oneof validator https://pkg.go.dev/github.com/go-playground/validator/v10#hdr-One_Of
this would then look like

if err := validator.New().Struct(c); err != nil {
    return stacktrace.Propagate ...
}

*env.BaseJavaCommand

allowedDomains []string
domain string
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Using validator.

Suggested change
domain string
domain string `validate:"oneof=MASTER JOB_MASTER"`


func (c *ElectCommand) Base() *env.BaseJavaCommand {
return c.BaseJavaCommand
serverAddress string
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can use the hostname_port validator for this as well

Suggested change
serverAddress string
serverAddress string `validate:"hostname_port"`


func (c *RemoveCommand) Base() *env.BaseJavaCommand {
return c.BaseJavaCommand
serverAddress string
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With validator.

Suggested change
serverAddress string
serverAddress string `validate:"hostname_port"`

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i would consider this as an improvement along with many others listed in the parent issue: #17522

as it is a nice to have, i don't plan on incorporating this in the initial iteration. adding it deserves a thorough review of all the commands to see where it can be used. in the expected case, it should save a lot of extra fluff lines. in the worst case, it can only validate a small percentage of the flags due to some convoluted logic of ours; then we may consider to not utilize it.

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Xenorith commented Jun 8, 2023

alluxio-bot, merge this please

@alluxio-bot alluxio-bot merged commit 4193e33 into Alluxio:golangCli Jun 8, 2023
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@Xenorith Would you like to add a golang version ratis-shell into apache/ratis repository?

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@Xenorith Would you like to add a golang version ratis-shell into apache/ratis repository?

@maobaolong i took a very quick glance and i didn't see as strong of a need for a golang version of the shell, but i'm open to hearing more about the pains that could be solved. i can provide a similar framework and template at the very least

Xenorith added a commit that referenced this pull request Aug 3, 2023
Add quorum/HA related commands as part of #17522
			pr-link: #17570
			change-id: cid-e9c76998b8fbfd023e0898c876cc495801a87fc5
Xenorith added a commit that referenced this pull request Aug 11, 2023
Add quorum/HA related commands as part of #17522
			pr-link: #17570
			change-id: cid-e9c76998b8fbfd023e0898c876cc495801a87fc5
twalluxio pushed a commit to twalluxio/alluxio that referenced this pull request Aug 14, 2023
Add quorum/HA related commands as part of Alluxio#17522
			pr-link: Alluxio#17570
			change-id: cid-e9c76998b8fbfd023e0898c876cc495801a87fc5
Xenorith added a commit that referenced this pull request Aug 15, 2023
- Add cli/ folder containing golang code
- Add script to compile code to executable in build/cli/build-cli.sh
- Add entrypoint script for development in bin/cli.sh
- Add build profile to build the CLI as part of tha maven build via `-PgoCli`
- Add `conf` service, consisting of
  - `bin/cli.sh conf get` as an example command, equivalent to `bin/alluxio getConf`
  - `bin/cli.sh conf log --name fully.qualified.class.path`, equivalent to `bin/alluxio fsadmin logLevel --logName fully.qualified.class.path`

See #17522 for more background info

			pr-link: #17532

dev docs for defining conventions for the new alluxio cli in golang

			pr-link: #17530

- Add commands to start/stop individual processes, ex. `bin/cli.sh process start master`
- Define process interface and registry
  - process specific java opts are defined with the process and are dynamically added to env
- Add journal format command as part of starting master process
- Mount options for worker are not ported because they will be deprecated in the near future

			pr-link: #17561

Adds `info` subcommand, which contains:
- `cache`: worker capacity information, calls the existing `bin/alluxio fsadmin report capacity` command
- `collect`: collects cluster information into a single tarball, calls the existing `bin/alluxio collectInfo` command
- `master`: master quorum information, calls the existing `bin/alluxio fs masterInfo` command
- `report`: cluster information, calls the existing `bin/alluxio fsadmin report` command, excluding the `capacity` category

			pr-link: #17566

Add journal commands to CLI as part of #17522
			pr-link: #17569

Add quorum/HA related commands as part of #17522
			pr-link: #17570

Add fs commands to golang CLI as part of #17522

unlike other CLI commands, utilize arguments to maintain the existing structure of filesystem commands (ex. cp, du, ls, mv, rm, etc)

			pr-link: #17580

Add generate commands to golang CLI as part of #17522

bin/alluxio docGen -> bin/cli generate docs
bin/alluxio bootstrapConf -> bin/cli generate template

to read ALLUXIO_CONF_DIR, also conducted a minor change on env variables.

			pr-link: #17790

Add exec commands to golang CLI as part of #17522

`bin/alluxio runClass` -> `bin/cli exec class`
`bin/alluxio runTests` -> `bin/cli exec testRun`
`bin/alluxio runUfsTests` -> `bin/cli exec testUfs`
`bin/alluxio runUfsIOTest` -> `bin/cli exec testUfsIO`
`bin/alluxio runHdfsMountTests` -> `bin/cli exec testHdfsMount`
`bin/alluxio runHmsTests` -> `bin/cli exec testHms`
`bin/alluxio runJournalCrashTest` -> `bin/cli exec testJournalCrash`

For command `exec test`, using different `--name` flags can lead to huge difference in other flags and options.
To manage flags and options, currently using different commands for different test types.
			pr-link: #17797

Prepare golang cli for tarball build and replace bin/alluxio

allow java 8 or 11

add cli binaries to other tarball profiles

Add `process` commands with multiple nodes to golang CLI as part of #17522

`bin/alluxio-start.sh masters` -> `bin/cli.sh process start masters`
`bin/alluxio-start.sh job_masters` -> `bin/cli.sh process start job_masters`
`bin/alluxio-start.sh workers` -> `bin/cli.sh process start workers`
`bin/alluxio-start.sh job_workers` -> `bin/cli.sh process start job_workers`
`bin/alluxio-start.sh proxies` -> `bin/cli.sh process start proxies`
`bin/alluxio-start.sh all` -> `bin/cli.sh process start all`
`bin/alluxio-start.sh local` -> `bin/cli.sh process start local`

`bin/alluxio-stop.sh masters` -> `bin/cli.sh process stop masters`
`bin/alluxio-stop.sh job_masters` -> `bin/cli.sh process stop job_masters`
`bin/alluxio-stop.sh workers` -> `bin/cli.sh process stop workers`
`bin/alluxio-stop.sh job_workers` -> `bin/cli.sh process stop job_workers`
`bin/alluxio-stop.sh proxies` -> `bin/cli.sh process stop proxies`
`bin/alluxio-stop.sh all` -> `bin/cli.sh process stop all`
`bin/alluxio-stop.sh local` -> `bin/cli.sh process stop local`

For command `process start/stop` on multiple nodes, using crypto's `ssh` package to create an SSH session, connect to masters, workers or all nodes, then send according subcommand on single nodes to these nodes.
			pr-link: #17887

Add job commands to golang CLI as part of #17522

`bin/alluxio-bash job cancel id` -> `bin/alluxio job cancel --id`
`bin/alluxio-bash job leader` -> `bin/alluxio job leader`
`bin/alluxio-bash job ls` -> `bin/alluxio job list`
`bin/alluxio-bash job getCmdStatus jobControlId` -> `bin/alluxio job cmdStatus --id`
`bin/alluxio-bash job stat [-v] id` -> `bin/alluxio job jobStatus [-v] --id`
`bin/alluxio-bash fs distributedCp src dst` -> `bin/alluxio job submit --type cp --src --dst`
`bin/alluxio-bash fs distributedMv src dst` -> `bin/alluxio job submit --type mv --src --dst`
`bin/alluxio-bash fs load path --submit` -> `bin/alluxio job load --path`

			pr-link: #17931

Clean up multiprocess code

- refactor commands launching the same process on multiple hosts into a single struct
- simplify the logic to ssh into different hosts with more straightforward handling of error channel
- move names.go under its own package to avoid import cycles
			pr-link: #17947

Add an `info version` subcommand to golang CLI as part of #17522

`bin/alluxio-bash version` -> `bin/alluxio info version`
			pr-link: #17943

update calls to old bash scripts to refer to alluxio-bash

Add `cache` commands to golang CLI as part of #17522
`bin/alluxio-bash formatWorker` -> `bin/cli cache format`
`bin/alluxio-bash fs freeWorker` -> `bin/cli cache free --worker`
`bin/alluxio-bash fs free` -> `bin/cli cache free [-f] --path`
`bin/alluxio-bash fs persist` -> `bin/cli cache persist --path`
`bin/alluxio-bash fs setTtl` -> `bin/cli cache ttl --set --duration --action`
`bin/alluxio-bash fs unsetTtl` -> `bin/cli cache ttl --unset`
			pr-link: #17937

backcompat support for start/stop scripts

skip mount args in start script backcompat

remove unsupported cmds
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