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docs: submit job sample + sample maintenance (#449)
* adding submit-job sample, updating quickstart sample, updating docstrings * prettier lint fixes * prettier lint fixes Co-authored-by: Benjamin E. Coe <bencoe@google.com>
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| // Copyright 2020 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // https://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
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| // Submit a Spark job to a Dataproc cluster with the Node.js Client Library. | ||
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| // sample-metadata: | ||
| // title: Submit Job | ||
| // usage: node submitJob.js <PROJECT_ID> <REGION> <CLUSTER_NAME> | ||
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| /*eslint no-warning-comments: [0, { "terms": ["todo", "fixme"], "location": "anywhere" }]*/ | ||
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| function main( | ||
| projectId = 'YOUR_PROJECT_ID', | ||
| region = 'YOUR_CLUSTER_REGION', | ||
| clusterName = 'YOUR_CLUSTER_NAME' | ||
| ) { | ||
| // [START dataproc_submit_job] | ||
| const dataproc = require('@google-cloud/dataproc'); | ||
| const {Storage} = require('@google-cloud/storage'); | ||
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| // TODO(developer): Uncomment and set the following variables | ||
| // projectId = 'YOUR_PROJECT_ID' | ||
| // region = 'YOUR_CLUSTER_REGION' | ||
| // clusterName = 'YOUR_CLUSTER_NAME' | ||
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| // Create a client with the endpoint set to the desired cluster region | ||
| const jobClient = new dataproc.v1.JobControllerClient({ | ||
| apiEndpoint: `${region}-dataproc.googleapis.com`, | ||
| projectId: projectId, | ||
| }); | ||
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| async function submitJob() { | ||
| const job = { | ||
| projectId: projectId, | ||
| region: region, | ||
| job: { | ||
| placement: { | ||
| clusterName: clusterName, | ||
| }, | ||
| sparkJob: { | ||
| mainClass: 'org.apache.spark.examples.SparkPi', | ||
| jarFileUris: [ | ||
| 'file:///usr/lib/spark/examples/jars/spark-examples.jar', | ||
| ], | ||
| args: ['1000'], | ||
| }, | ||
| }, | ||
| }; | ||
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| const [jobOperation] = await jobClient.submitJobAsOperation(job); | ||
| const [jobResponse] = await jobOperation.promise(); | ||
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| const matches = jobResponse.driverOutputResourceUri.match( | ||
| 'gs://(.*?)/(.*)' | ||
| ); | ||
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| const storage = new Storage(); | ||
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| const output = await storage | ||
| .bucket(matches[1]) | ||
| .file(`${matches[2]}.000000000`) | ||
| .download(); | ||
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| // Output a success message. | ||
| console.log(`Job finished successfully: ${output}`); | ||
| // [END dataproc_submit_job] | ||
| } | ||
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| submitJob(); | ||
| } | ||
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| main(...process.argv.slice(2)); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| // Copyright 2020 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // https://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
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| 'use strict'; | ||
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| const {assert} = require('chai'); | ||
| const {describe, it, before, after} = require('mocha'); | ||
| const cp = require('child_process'); | ||
| const {v4} = require('uuid'); | ||
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| const projectId = process.env.GCLOUD_PROJECT; | ||
| const region = 'us-central1'; | ||
| const clusterName = `node-sj-test-${v4()}`; | ||
| const cluster = { | ||
| projectId: projectId, | ||
| region: region, | ||
| cluster: { | ||
| clusterName: clusterName, | ||
| config: { | ||
| masterConfig: { | ||
| numInstances: 1, | ||
| machineTypeUri: 'n1-standard-1', | ||
| }, | ||
| workerConfig: { | ||
| numInstances: 2, | ||
| machineTypeUri: 'n1-standard-1', | ||
| }, | ||
| }, | ||
| }, | ||
| }; | ||
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| const dataproc = require('@google-cloud/dataproc'); | ||
| const clusterClient = new dataproc.v1.ClusterControllerClient({ | ||
| apiEndpoint: `${region}-dataproc.googleapis.com`, | ||
| }); | ||
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| const execSync = cmd => | ||
| cp.execSync(cmd, { | ||
| encoding: 'utf-8', | ||
| }); | ||
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| describe('submit a Spark job to a Dataproc cluster', () => { | ||
| before(async () => { | ||
| const [operation] = await clusterClient.createCluster(cluster); | ||
| await operation.promise(); | ||
| }); | ||
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| it('should submit a job to a dataproc cluster', async () => { | ||
| const stdout = execSync( | ||
| `node submitJob.js "${projectId}" "${region}" "${clusterName}"` | ||
| ); | ||
| assert.match(stdout, new RegExp('Job finished successfully')); | ||
| }); | ||
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| after(async () => { | ||
| await clusterClient.deleteCluster({ | ||
| projectId: projectId, | ||
| region: region, | ||
| clusterName: clusterName, | ||
| }); | ||
| }); | ||
| }); |