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mjob
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mjob
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#!/usr/bin/env node
// -*- mode: js -*-
/*
* Copyright 2018 Joyent, Inc.
* Copyright 2022 MNX Cloud, Inc.
*/
var EventEmitter = require('events').EventEmitter;
var fs = require('fs');
var path = require('path');
var url = require('url');
var util = require('util');
var assert = require('assert-plus');
var backoff = require('backoff');
var bunyan = require('bunyan');
var cmdln = require('cmdln');
var LineStream = require('lstream');
var moment = require('moment');
var once = require('once');
var manta = require('../lib');
///--- Globals
var sprintf = util.format;
var JOB_DATA_FMT = '/%s/jobs/%s/%s.txt';
var NAME = path.basename(process.argv[1]);
var LOG = bunyan.createLogger({
name: NAME,
level: (process.env.LOG_LEVEL || 'info'),
stream: process.stderr
});
///-- Helpers
function assertOpts(thisp, subcmd, opts, cb) {
if (opts.help) {
process.nextTick(function () {
thisp.do_help('help', {}, [subcmd], cb.bind(thisp));
});
return (false);
}
manta.cliVersionCheckPrintAndExit(opts);
try {
manta.checkBinEnv(opts);
manta.cli_logger(opts, LOG);
} catch (e) {
process.nextTick(cb.bind(thisp, e));
return (false);
}
return (true);
}
function addInputsFromStdin(client, opts, cb) {
assert.object(client, 'client');
assert.object(opts, 'options');
assert.finite(opts.batch, 'options.batch');
assert.arrayOfString(opts.jobIds, 'options.jobIds');
assert.finite(opts.parallel, 'options.parallel');
assert.optionalBool(opts.open, 'options.open');
assert.func(cb, 'callback');
var lstream = new LineStream({
encoding: 'utf8'
});
var queue = new manta.Queue({
limit: opts.parallel,
worker: function submit(keys, _cb) {
_cb = once(_cb);
var subQueue = new manta.Queue({
limit: opts.parallel,
worker: function _submit(id, __cb) {
__cb = once(__cb);
client.addJobKey(id, keys, function (err) {
if (err) {
__cb(err);
return;
}
if (!opts.quiet) {
console.error('added %d input%s to %s',
keys.length,
keys.length > 1 ? 's' : '',
id);
}
__cb();
});
}
});
subQueue.once('end', _cb);
subQueue.once('error', _cb);
opts.jobIds.forEach(subQueue.push.bind(subQueue));
subQueue.close();
}
});
var paused = false;
var tmp = [];
lstream.on('data', function onLine(l) {
if (!l)
return;
tmp.push(manta.path(l, true));
if (tmp.length === opts.batch) {
if (!queue.push(tmp.slice(0)) && !paused) {
queue.once('drain', function () {
lstream.resume();
});
paused = true;
lstream.pause();
}
tmp.length = 0;
}
});
lstream.once('end', function onInputEnd() {
if (tmp.length > 0)
queue.push(tmp.slice(0));
tmp.length = 0;
queue.close();
});
process.stdin.pipe(lstream);
queue.once('end', function onKeysAdded() {
if (!opts.open || opts.close) {
var subQueue = new manta.Queue({
limit: opts.parallel,
worker: function end(id, __cb) {
client.endJob(id, once(__cb));
}
});
subQueue.once('end', cb);
subQueue.once('error', cb);
opts.jobIds.forEach(subQueue.push.bind(subQueue));
subQueue.close();
} else {
cb();
}
});
}
function createClient(opts) {
return (manta.createBinClient(opts));
}
// GetJob(Errors|Failures|Inputs|Outputs) all have the same logic
// So this is just a generic handler for those
function jobDataCommon(opts, callback) {
assert.object(opts, 'options');
assert.arrayOfString(opts.args, 'options.args');
assert.object(opts.client, 'options.client');
assert.string(opts.func, 'options.func');
assert.finite(opts.parallel, 'options.parallel');
assert.string(opts.type, 'options.type');
assert.string(opts.user, 'options.user');
assert.string(opts.watch, 'options.watch');
assert.optionalFunc(callback, 'callback');
var queue = new manta.Queue({
limit: opts.parallel,
worker: function getJobData(id, cb) {
cb = once(cb);
function handleError(func_err) {
if (func_err.statusCode !== 404) {
cb(func_err);
return;
}
var p = sprintf(JOB_DATA_FMT, opts.user, id, opts.type);
opts.client.get(p, function (err, stream) {
if (err) {
cb(err);
return;
}
var body = '';
stream.setEncoding('utf8');
stream.on('data', function (chunk) {
body += chunk;
});
stream.once('end', function () {
process.stdout.write(body);
cb();
});
});
}
opts.client[opts.func](id, function (err, out) {
if (err) {
handleError(err);
return;
}
var body = '';
out.once('error', handleError);
out.on(opts.watch, function (obj) {
if (opts.func === 'jobErrors') {
body += JSON.stringify(obj) + '\n';
} else if (opts.emit) {
opts.emit.emit(opts.watch, obj);
} else {
body += obj + '\n';
}
});
out.once('end', function () {
if (!opts.emit) {
process.stdout.write(body);
cb();
} else {
opts.emit.emit('end');
}
});
});
}
});
queue.once('end', function () {
if (callback) {
opts.client.close();
callback();
}
});
queue.once('error', callback || function (err) {
console.error('mjob: ' + err.toString());
process.exit(1);
});
opts.args.forEach(queue.push.bind(queue));
queue.close();
}
function jobWait(opts, cb) {
assert.object(opts, 'options');
assert.object(opts.client, 'options.client');
assert.string(opts.id, 'options.id');
assert.object(opts.opts, 'options.opts');
assert.optionalObject(opts.baropts, 'options.baropts');
assert.optionalBool(opts.catOutputOnError, 'options.catOutputOnError');
assert.optionalFunc(cb, 'callback');
if (!opts.opts.watch && !opts.opts.cat_outputs) {
cb();
return;
}
jobWatch({
client: opts.client,
job: opts.id,
baropts: opts.baropts
}, function (err, job) {
if (err) {
cb(err);
return;
}
var s = job.stats;
var job_error;
if (s.errors > 0) {
var msg = sprintf('job %s had %d error%s', opts.id, s.errors,
s.errors > 1 ? 's' : '');
job_error = new Error(msg);
}
if (!opts.opts.cat_outputs) {
cb(job_error);
} else {
if (job_error && !opts.catOutputOnError) {
cb(job_error);
return;
}
var ee = new EventEmitter();
var outQueue = new manta.Queue({
limit: 1,
worker: function get(k, _cb) {
_cb = once(_cb);
opts.client.get(k, function (get_err, stream) {
if (get_err) {
_cb(get_err);
return;
}
stream.pipe(process.stdout, {end: false});
stream.once('end', _cb);
});
}
});
function get_done(get_err) {
opts.client.close();
cb(get_err || job_error);
}
outQueue.once('end', get_done);
outQueue.once('error', get_done);
ee.on('key', outQueue.push.bind(outQueue));
ee.once('end', outQueue.close.bind(outQueue));
jobDataCommon({
args: [opts.id],
client: opts.client,
emit: ee,
func: 'jobOutput',
parallel: opts.opts.parallel,
type: 'out',
user: opts.opts.account,
watch: 'key'
});
}
});
}
function jobWatch(opts, cb) {
assert.object(opts);
assert.string(opts.job, 'job');
assert.object(opts.client, 'client');
assert.optionalObject(opts.baropts, 'options.baropts');
assert.func(cb, 'callback');
cb = once(cb);
var client = opts.client;
var job = opts.job;
var monitor = backoff.exponential({
initialDelay: 100,
maxDelay: opts.baropts ? 101 : 10000
});
var bar;
var tasksDone;
if (opts.baropts) {
bar = new manta.ProgressBar(opts.baropts);
tasksDone = 0;
}
monitor.on('ready', function onReady(attempts, delayms) {
client.job(job, function onJob(err, status) {
if (err) {
monitor.reset(); // stop monitoring
monitor.removeAllListeners('fail');
monitor.removeAllListeners('ready');
cb(err);
} else if (status.state !== 'done' &&
status.state !== 'archiving') {
if (bar) {
bar.advance(status.stats.tasksDone - tasksDone);
tasksDone = status.stats.tasksDone;
}
monitor.backoff();
} else {
if (bar) {
bar.advance(status.stats.tasksDone - tasksDone);
}
monitor.reset(); // stop monitoring
monitor.removeAllListeners('fail');
monitor.removeAllListeners('ready');
cb(null, status);
}
});
});
monitor.on('fail', function onFail() {
cb(new Error(job + ' did not complete in time'));
});
monitor.backoff();
}
function getJobInfo(opts, cb) {
assert.object(opts, 'options');
assert.object(opts.client, 'options.client');
assert.string(opts.id, 'options.id');
assert.string(opts.user, 'options.user');
assert.optionalFunc(cb, 'callback');
cb = once(cb);
opts.client.job(opts.id, function (err, job) {
if (err) {
if (err.statusCode !== 404) {
cb(err);
} else {
var p = manta.jobPath(opts.id, opts.user) + '/job.json';
opts.client.get(p, function (_err, stream) {
if (_err) {
cb(_err);
} else {
var body = '';
stream.setEncoding('utf8');
stream.on('data', function (chunk) {
body += chunk;
});
stream.once('end', function () {
cb(null, JSON.parse(body));
});
}
});
}
} else {
cb(null, job);
}
});
}
///--- CLI
function MJob() {
cmdln.Cmdln.call(this, {
name: 'mjob',
desc: 'Manages Manta compute jobs',
options: [
{
names: ['help', 'h'],
type: 'bool',
help: 'Show this help message and exit.'
},
{
names: ['version'],
type: 'bool',
help: 'Print version and exit.'
},
{
names: ['completion'],
type: 'bool',
help: 'Print bash completion code for this command and exit.',
hidden: true
}
],
helpOpts: {
includeEnv: true
}
});
}
util.inherits(MJob, cmdln.Cmdln);
MJob.prototype.init = function (opts, args, callback) {
manta.cliVersionCheckPrintAndExit(opts);
if (opts.completion) {
/*
* To ensure that all our stdout is written before 'process.exit()'
* terminates, we set stdout to blocking. This is an issue when
* (a) node v4 or later is used and (b) at least when exec'd by node
* as in test/completion.test.js. See
* https://gist.github.com/misterdjules/3aa4c77d8f881ffccba3b6e6f0050d03
* for some discussion. An alternative would be to exit the the node
* process without 'process.exit'.
*/
if (process.stdout._handle &&
typeof (process.stdout._handle.setBlocking) === 'function')
{
process.stdout._handle.setBlocking(true);
}
console.log(this.bashCompletion());
process.exit(0);
}
cmdln.Cmdln.prototype.init.apply(this, arguments);
};
//-- AddKeys
MJob.prototype.do_addinputs = function do_addinputs(subcmd, opts, args, cb) {
cb = once(cb);
if (!assertOpts(this, subcmd, opts, cb))
return;
if (args.length < 1) {
cb(new Error('At least one JobId must be specified'));
return;
}
if (args.length < 1) {
cb(new Error('At least one JobId must be specified'));
return;
}
var client = createClient(opts);
opts.jobIds = args;
addInputsFromStdin(client, opts, function (err) {
client.close();
cb(err);
});
};
MJob.prototype.do_addinputs.options = manta.DEFAULT_CLI_OPTIONS.concat([
{
group: 'mjob addinputs options'
},
{
names: ['batch', 'b'],
type: 'positiveInteger',
help: 'number of inputs to submit per batch (default 1000)',
'default': 1000,
helpArg: 'BATCH_SIZE'
},
{
names: ['parallel', 'p'],
type: 'positiveInteger',
help: 'limit concurrent operations (default 25)',
'default': 25,
helpArg: 'NUM'
},
{
names: ['open', 'o'],
type: 'bool',
help: 'leave job input open for adding more inputs',
'default': false
}
]);
MJob.prototype.do_addinputs.help = (
'Adds inputs to an already created Manta Job.\n' +
'Pipe inputs as \\n delimited paths\n' +
'Example:\n' +
/* JSSTYLED */
' mfind -t o /user/stor | mjob addinputs b19e0925-4c85-4fe9-ab47-8cc9dcfec81a\n' +
'\n' +
'Usage:\n' +
' mjob addinputs [OPTIONS] JobId...\n' +
'\n' +
'{{options}}'
);
//-- CancelJob
MJob.prototype.do_cancel = function do_cancel(subcmd, opts, args, cb) {
cb = once(cb);
if (!assertOpts(this, subcmd, opts, cb))
return;
if (args.length < 1) {
cb(new Error('At least one JobId must be specified'));
return;
}
var client = createClient(opts);
var queue = new manta.Queue({
limit: opts.parallel,
worker: function cancel(id, _cb) {
client.cancelJob(id, _cb);
}
});
queue.once('end', function () {
client.close();
cb();
});
queue.once('error', cb);
args.forEach(queue.push.bind(queue));
queue.close();
};
MJob.prototype.do_cancel.options = manta.DEFAULT_CLI_OPTIONS.concat([
{
group: 'mjob cancel options'
},
{
names: ['parallel', 'p'],
type: 'positiveInteger',
help: 'limit concurrent operations (default 100)',
'default': 100,
helpArg: 'NUM'
}
]);
MJob.prototype.do_cancel.help = (
'Cancels a Manta Job by JobId.\n' +
'Example:\n' +
' mjob cancel f6e1391b-584d-4722-bbdf-4506621148c7\n' +
'\n' +
'Usage:\n' +
' mjob cancel [OPTIONS] JobId...\n' +
'\n' +
'{{options}}'
);
//-- CreateJob
MJob.prototype.do_create = function create(subcmd, opts, args, cb) {
cb = once(cb);
if (!assertOpts(this, subcmd, opts, cb))
return;
var count = opts.count;
var job = {
name: opts.name,
phases: []
};
if (opts.file) {
var tmp = fs.readFileSync(path.normalize(opts.file), 'utf8');
job = JSON.parse(tmp);
} else if (opts.map || opts.reduce) {
if (args.length > 0) {
cb(new Error('cannot use -m/-r along with a job expression\n' +
'(did you forget a "-m" or "-r"?)'));
return;
}
var next = {};
opts._order.forEach(function (o) {
switch (o.key) {
case 'asset':
next.assets = next.assets || [];
next.assets.push(manta.path(o.value, true));
break;
case 'count':
next.count = o.value;
break;
case 'disk':
next.disk = o.value;
break;
case 'image':
next.image = o.value;
break;
case 'init':
next.init = o.value;
break;
case 'memory':
next.memory = o.value;
break;
case 'map':
job.phases.push({
assets: next.assets,
disk: next.disk,
exec: o.value,
image: next.image,
init: next.init,
memory: next.memory,
type: 'map'
});
next = {};
break;
case 'reduce':
job.phases.push({
assets: next.assets,
count: next.count,
disk: next.disk,
exec: o.value,
image: next.image,
init: next.init,
memory: next.memory,
type: 'reduce'
});
next = {};
break;
default:
break;
}
});
} else if (args.length) {
var exec = '';
var type = 'map';
function addPhase() {
var p = {
exec: exec,
disk: opts.disk,
image: opts.image,
init: opts.init,
memory: opts.memory,
type: type
};
if (type === 'reduce') {
if (count > 1)
p.count = count;
}
count = opts.count;
exec = '';
job.phases.push(p);
}
for (var i = 0; i < args.length; i++) {
if (args[i] === '^') {
if (exec)
addPhase();
type = 'map';
} else if (/\^{2,}/.test(args[i])) {
if (exec)
addPhase();
count = args[i].length - 2 || count;
type = 'reduce';
} else {
if (exec.length)
exec += ' ';
exec += args[i];
}
}
if (exec)
addPhase();
if (opts.asset) {
var _assets = opts.asset.map(function (a) {
return (manta.path(a));
});
job.phases.forEach(function (p) {
p.assets = _assets;
});
}
} else {
cb(new Error('At least one map or reduce task must be specified'));
return;
}
if (opts.dry_run) {
console.log(JSON.stringify(job, null, 4));
cb();
return;
}
var client = createClient(opts);
client.createJob(job, function (err, id) {
if (err) {
cb(err);
return;
}
if (!opts.cat_outputs)
console.log(id);
if (process.stdin.isTTY) {
if (!opts.close && !opts.open)
console.error('mjob: warning: input stream left open');
if (opts.close) {
client.endJob(id, function onEndJob(err2) {
if (err2) {
cb(err2);
return;
}
jobWait({
client: client,
id: id,
opts: opts
}, cb);
});
} else {
jobWait({
client: client,
id: id,
opts: opts
}, cb);
}
} else {
opts.jobIds = [id];
addInputsFromStdin(client, opts, function (err2) {
if (err2) {
client.close();
cb(err2);
return;
}
jobWait({
client: client,
id: id,
opts: opts
}, function (err3) {
client.close();
cb(err3);
});
});
}
});
};
MJob.prototype.do_create.options = manta.DEFAULT_CLI_OPTIONS.concat([
{
group: 'mjob create options'
},
{
names: ['batch', 'b'],
type: 'positiveInteger',
help: 'number of inputs to submit per batch (default 1000)',
'default': 1000,
helpArg: 'BATCH_SIZE'
},
{
names: ['cat-outputs', 'o'],
type: 'bool',
help: 'wait for job to complete, then fetch outputs'
},
{
names: ['close'],
type: 'bool',
help: 'do not leave job waiting for inputs'
},
{
names: ['dry-run'],
type: 'bool',
help: 'Print the job configuration and exit, instead of '
+ 'creating the job.'
},
{
names: ['name', 'n'],
type: 'string',
help: 'job name',
helpArg: 'NAME'
},
{
names: ['open'],
type: 'bool',
help: 'leave job input open for adding more inputs',
'default': false
},
{
names: ['parallel', 'p'],
type: 'positiveInteger',
help: 'limit concurrent operations (by mjob, not the job itself; '
+ 'default 25)',
'default': 25,
helpArg: 'NUM'
},
{
names: ['quiet', 'q'],
type: 'bool',
help: 'do not output verbose information',
'default': false
},
{
names: ['watch', 'w'],
type: 'bool',
help: 'wait for job to complete, and dump outputs'
},
{
group: 'Specify phases'
},
{
names: ['file', 'f'],
type: 'string',
help: 'manifest file to create job from',
helpArg: 'FILE'
},
{
names: ['map', 'm'],
type: 'arrayOfString',
help: 'map phase(s)',
helpArg: 'CMD'
},
{
names: ['reduce', 'r'],
type: 'arrayOfString',
help: 'reduce phase(s)',
helpArg: 'CMD'
},
{
group: 'Phase properties'
},
{
names: ['asset', 's'],
type: 'arrayOfString',
help: 'asset(s) to place in zones',
helpArg: 'ASSET_PATH'
},
{
names: ['count'],
type: 'positiveInteger',
help: 'number of reducers to create',
helpArg: 'REDUCERS',
'default': 1
},
{
names: ['disk'],
type: 'positiveInteger',
help: 'amount of disk space available for a phase (gigabytes)',
helpArg: 'DISK_GB'
},
{
names: ['image'],
type: 'string',
help: 'Allowed compute image string (semver)',
helpArg: 'IMAGE_SEMVER'
},
{
names: ['init'],
type: 'string',
help: 'command to run before execution; must be valid bash script',
helpArg: 'INIT_COMMAND'
},
{
names: ['memory'],
type: 'positiveInteger',
help: 'amount of memory available for a phase (megabytes)',
helpArg: 'MEMORY_MB'
}
]);
MJob.prototype.do_create.help = [
/* BEGIN JSSTYLED */
'Create a Manta Job.',
'',
'Usage:',
' mjob create [OPTIONS] -m MAP [-m MAP] [-r REDUCE] ... # option style',
' mjob create [OPTIONS] [MAP [^ MAP] [^^ REDUCE]] # expression style',
' mjob create [OPTIONS] -f FILE # phases in JSON FILE',
'',
'{{options}}',
'Map and reduce phases can be specified (a) via "-f FILE" with a job config',
'(b) with "-m" and "-r" options:',
' mjob create -m "grep foo || true" -m "cut -d: -f1" -r cat',
'or, (c) via an "expression" style using the "^" and "^^" syntax:',
' mjob create "grep foo || true" ^ "cut -d: -f1" ^^ cat',
'',
'Phase property options (--asset, --disk, etc.) apply differently depending on',
'the usage type: if using options style (-m, -r), they apply to the *next* phase',
'specified with -m/-r; if using expression style, they apply to *all* phases.',
'For documentation on phase properties, including supported values for --disk',
'and --memory see:',
' https://apidocs.tritondatacenter.com/manta/jobs-reference.html#job-configuration',
'',
'Input objects can be fed to a Manta job via stdin to `mjob create`:',
' mfind -t o ~~/stor/data | mjob create -m "grep foo || true" -r sort',
'or via `mjob addinputs`:',
' jobId=$(mjob create -m "grep foo || true" -r sort)',
' mfind -t o ~~/stor/data | mjob addinputs $jobId'
/* END JSSTYLED */
].join('\n');
//-- GetJob
MJob.prototype.do_get = function do_get(subcmd, opts, args, cb) {
cb = once(cb);
if (!assertOpts(this, subcmd, opts, cb))
return;
if (args.length < 1) {
cb(new Error('At least one JobId must be specified'));
return;
}
var client = createClient(opts);
var queue = new manta.Queue({
limit: opts.parallel,
worker: function getJob(id, _cb) {
getJobInfo({
client: client,
id: id,
user: opts.user
}, function (err, job) {
if (err) {
_cb(err);
return;
}
console.log('%s', JSON.stringify(job, null, 2));
_cb();
});
}
});
queue.once('end', function () {
client.close();
cb();
});
queue.once('error', cb);
args.forEach(queue.push.bind(queue));
queue.close();
};
MJob.prototype.do_get.options = manta.DEFAULT_CLI_OPTIONS.concat([
{
group: 'mjob get options'