从 Cloud Function 触发 Cloud Dataflow 管道 - 函数超时 [英] Triggering Cloud Dataflow pipeline from Cloud Function - function times out
问题描述
我正在尝试从 Cloud Function 触发 Dataflow 管道,该管道本身是在 GCS 存储桶中上传新文件时触发的.当我上传文件时,云功能被正确触发,但几秒钟后超时,没有触发任何数据流.下面是我的功能代码:
I am trying to trigger a Dataflow pipeline from a Cloud Function which itself is triggered upon upload of a new file in a GCS bucket. When I upload a file, the Cloud function gets triggered properly but timesout after few seconds without any Dataflow being triggered. Below is my function code:
const google = require('googleapis');
const projectId = "iot-fitness-198120";
exports.moveDataFromGCStoPubSub = function(event, callback) {
const file = event.data;
if (file.resourceState === 'exists' && file.name) {
google.auth.getApplicationDefault(function (err, authClient, projectId) {
if (err) {
throw err;
}
if (authClient.createScopedRequired && authClient.createScopedRequired()) {
authClient = authClient.createScoped([
'https://www.googleapis.com/auth/cloud-platform',
'https://www.googleapis.com/auth/userinfo.email'
]);
}
console.log("File exists and client function is authenticated");
console.log(file);
const dataflow = google.dataflow({ version: 'v1b3', auth: authClient });
console.log(`Incoming data: ${file.name}`);
dataflow.projects.templates.create({
projectId: projectId,
resource: {
parameters: {
inputFile: `gs://${file.bucket}/${file.name}`,
outputTopic: `projects/iot-fitness-198120/topics/MemberFitnessData`
},
jobName: 'CStoPubSub',
gcsPath: 'gs://dataflow-templates/latest/GCS_Text_to_Cloud_PubSub',
staginglocation: 'gs://fitnessanalytics-tmp/tmp'
}
}, function(err, response) {
if (err) {
console.error("problem running dataflow template, error was: ", err);
}
console.log("Dataflow template response: ", response);
callback();
});
});
}
};
执行甚至没有记录以下行,console.log("File exists and client function is authenticated");这告诉我它甚至没有走那么远.
The execution doesn't even log the following line, console.log("File exists and client function is authenticated"); which tells me it is not even getting that far.
这是执行期间的日志输出:
Here's the log output during execution:
2018-03-20 04:56:43.283 GST数据流触发函数52957909906492函数执行耗时 60097 毫秒,状态为:'timeout'
2018-03-20 04:56:43.283 GST DataflowTriggeringFunction 52957909906492 Function execution took 60097 ms, finished with status: 'timeout'
2018-03-20 04:55:43.188 GST数据流触发函数52957909906492函数执行开始
2018-03-20 04:55:43.188 GST DataflowTriggeringFunction 52957909906492 Function execution started
知道为什么它没有触发数据流但没有抛出错误消息吗?
Any idea why it's not triggering the Dataflow and yet not throwing an error message ?
推荐答案
我终于修改了代码.从 GCP 支持获得了一些帮助.下面是正确的语法:
I have finally modified the code. Got some help from GCP support. Below is the right syntax that works:
var {google} = require('googleapis');
exports.moveDataFromGCStoPubSub = (event, callback) => {
const file = event.data;
const context = event.context;
console.log(`Event ${context.eventId}`);
console.log(` Event Type: ${context.eventType}`);
console.log(` Bucket: ${file.bucket}`);
console.log(` File: ${file.name}`);
console.log(` Metageneration: ${file.metageneration}`);
console.log(` Created: ${file.timeCreated}`);
console.log(` Updated: ${file.updated}`);
google.auth.getApplicationDefault(function (err, authClient, projectId) {
if (err) {
throw err;
}
console.log(projectId);
const dataflow = google.dataflow({ version: 'v1b3', auth: authClient });
console.log(`gs://${file.bucket}/${file.name}`);
dataflow.projects.templates.create({
gcsPath: 'gs://dataflow-templates/latest/GCS_Text_to_Cloud_PubSub',
projectId: projectId,
resource: {
parameters: {
inputFilePattern: `gs://${file.bucket}/${file.name}`,
outputTopic: 'projects/iot-fitness-198120/topics/MemberFitnessData2'
},
environment: {
tempLocation: 'gs://fitnessanalytics-tmp/tmp'
},
jobName: 'CStoPubSub',
//gcsPath: 'gs://dataflow-templates/latest/GCS_Text_to_Cloud_PubSub',
}
}, function(err, response) {
if (err) {
console.error("problem running dataflow template, error was: ", err);
}
console.log("Dataflow template response: ", response);
callback();
});
});
callback();
};
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