electron-pdf on Windows / NodeIIS timeouts



  • I can't get electron-pdf rendering to work. Tried both electron and electron-prebuilt.

    Is there anything I can change in the config or something to make it work? Better ways to debug this are also welcome..

    This is about the only thing I can get out of the logs.

    2017-05-09T13:40:06.318Z - error: Error when processing render request Error during rendering report: Timeout when executing in electron Error: Timeout when executing in electron
        at Timeout._onTimeout (e:\sites\jsreports\www\node_modules\electron-html-to\lib\dedicatedProcessStrategy.js:272:20)
        at ontimeout (timers.js:386:14)
        at tryOnTimeout (timers.js:250:5)
        at Timer.listOnTimeout (timers.js:214:5) requestId=8
    2017-05-09T13:40:06.323Z - error: Error during processing request: http://jsreports/api/report/test details: Error during rendering report: Timeout when executing in electron Error: Timeout when executing in electron
        at Timeout._onTimeout (e:\sites\jsreports\www\node_modules\electron-html-to\lib\dedicatedProcessStrategy.js:272:20)
        at ontimeout (timers.js:386:14)
        at tryOnTimeout (timers.js:250:5)
        at Timer.listOnTimeout (timers.js:214:5)
    
    


  • Does the server machine where it runs have more than one core?
    Do you get timeout for simple "Hello world" or just for your particular template?



  • Yeah it's configured with 2 cores right now. And I'm just rendering a Hello world, so the template shouldn't be intensive in any way.


  • administrators

    @srijken what is your jsreport config? what version of electron have you installed? and how you installed it, are you using electron or electron-prebuilt package? also try to run jsreport with DEBUG=electron-* env var to get more logs of what is going on and share it here


  • administrators

    @srijken also, can you try to run jsreport outside of IISNode and test if it works? just like a raw node.js app.. previously we had bad experiences trying to make it work https://github.com/bjrmatos/electron-html-to/issues/18 , IISNode is a special environtment because it reimplements some parts of node.js and has some runtime differences that make it difficult to support, so at this point i'm not 100% sure that electron works under IISNode



  • Tried both electron and electron-prebuilt. Currently electron is installed version 1.6.6.

    report config:

    {
      "certificate": {
        "key": "certificates/jsreport.net.key",
        "cert": "certificates/jsreport.net.cert"
      },
      "authentication": {
        "cookieSession": {
          "secret": "<your strong secret>"
        },
        "admin": {
          "username": "admin",
          "password": "password"
        },
        "enabled": true
      },
      "connectionString": {
        "name": "fs"
      },
      "httpPort": 5488,
      "logger": {
        "console": {
          "transport": "console",
          "level": "debug"
        },
        "file": {
          "transport": "file",
          "level": "debug",
          "filename": "logs/reporter.log"
        },
        "error": {
          "transport": "file",
          "level": "error",
          "filename": "logs/error.log"
        }
      },
      "blobStorage": "fileSystem",
      "phantom": {
        "strategy": "dedicated-process",
        "timeout": 60000
      },
      "electron":{
        "strategy": "dedicated-process",
        "timeout": 60000,
        "numberOfWorkers": 2
      },
      "tasks": {
        "strategy": "in-process",
        "timeout": 10000,
        "allowedModules": "*"
      },
      "scripts": {
        "allowedModules": "*",
        "timeout": 60000
      },
      "sample-template": {
        "createSamples": true
      }
    }
    

    log:

    2017-05-09T14:57:42.391Z - debug: Resources not defined for this template. requestId=1
    2017-05-09T14:57:42.391Z - debug: Rendering engine handlebars requestId=1
    2017-05-09T14:57:43.141Z - debug: Compiled template not found in the cache, compiling timestamp=Tue May 09 2017 16:57:43 GMT+0200 (W. Europe Daylight Time), requestId=1
    2017-05-09T14:57:43.141Z - debug: Replaced images [] requestId=1
    2017-05-09T14:57:43.141Z - debug: Executing recipe electron-pdf requestId=1
    2017-05-09T14:57:43.141Z - debug: Electron Pdf recipe start.
    2017-05-09T14:58:43.320Z - error: Error when processing render request Error during rendering report: Timeout when executing in electron Error: Timeout when executing in electron
        at Timeout._onTimeout (e:\sites\jsreports\www\node_modules\electron-html-to\lib\dedicatedProcessStrategy.js:272:20)
        at ontimeout (timers.js:386:14)
        at tryOnTimeout (timers.js:250:5)
        at Timer.listOnTimeout (timers.js:214:5) requestId=1
    

    and

    2017-05-09T14:57:43.141Z - debug: Electron Pdf recipe start.
    
    Tue, 09 May 2017 14:57:43 GMT electron-html-to:conversion generating new conversion task..
    Tue, 09 May 2017 14:57:43 GMT electron-html-to:conversion conversion task id: 9367e631-6f08-4e08-8867-0d324cd78395
    Tue, 09 May 2017 14:57:43 GMT electron-html-to:conversion creating temporal html files in C:\Windows\TEMP\jsreport-temp..
    Tue, 09 May 2017 14:57:43 GMT electron-html-to:conversion creating temporal html file [type: html] in C:\Windows\TEMP\jsreport-temp\9367e631-6f08-4e08-8867-0d324cd78395html.html..
    Tue, 09 May 2017 14:57:43 GMT electron-html-to:conversion starting conversion task [strategy:dedicated-process][task id:9367e631-6f08-4e08-8867-0d324cd78395] with options: { browserWindow: 
       { width: undefined,
         height: undefined,
         webPreferences: { javascript: true } },
      waitForJSVarName: 'JSREPORT_READY_TO_START',
      collectLogs: true,
      delay: undefined,
      waitForJS: false,
      converterPath: 'e:\\sites\\jsreports\\www\\node_modules\\electron-html-to\\lib\\converters\\pdf.js',
      pdf: 
       { marginsType: undefined,
         pageSize: undefined,
         printBackground: true,
         landscape: false },
      htmlFile: 'C:\\Windows\\TEMP\\jsreport-temp\\9367e631-6f08-4e08-8867-0d324cd78395html.html',
      url: 'file:C:\\Windows\\TEMP\\jsreport-temp\\9367e631-6f08-4e08-8867-0d324cd78395html.html',
      chromeCommandLineSwitches: { 'ignore-certificate-errors': null },
      extraHeaders: {},
      output: 
       { tmpDir: 'C:\\Windows\\TEMP\\jsreport-temp',
         id: '9367e631-6f08-4e08-8867-0d324cd78395' } }
    Tue, 09 May 2017 14:57:43 GMT electron-html-to:dedicated-process-strategy saving settings in temporal file..
    Tue, 09 May 2017 14:57:43 GMT electron-html-to:dedicated-process-strategy searching electron executable path..
    Tue, 09 May 2017 14:57:43 GMT electron-html-to:dedicated-process-strategy trying to get electron path from "electron" module..
    Tue, 09 May 2017 14:57:43 GMT electron-html-to:dedicated-process-strategy running in IISNODE..
    Tue, 09 May 2017 14:57:43 GMT electron-html-to:dedicated-process-strategy spawning new electron process with args: [ 'e:\\sites\\jsreports\\www\\node_modules\\electron-html-to\\lib\\scripts\\standaloneScript.js' ] and options: { env: 
       { ELECTRON_WORKER_ID: '9367e631-6f08-4e08-8867-0d324cd78395',
         ELECTRON_HTML_TO_SETTINGS_FILE_PATH: 'C:\\Windows\\TEMP\\jsreport-temp\\9367e631-6f08-4e08-8867-0d324cd78395settings.html',
         DISPLAY: undefined,
         IISNODE_VERSION: '0.2.21' },
      stdio: [ null, null, null, 'ipc' ] }
    Tue, 09 May 2017 14:57:43 GMT electron-html-to:dedicated-process-strategy electron process pid: 4192
    Tue, 09 May 2017 14:57:43 GMT electron-html-to:dedicated-process-strategy processing conversion..
    Tue, 09 May 2017 14:58:43 GMT electron-html-to:dedicated-process-strategy conversion timeout..
    Tue, 09 May 2017 14:58:43 GMT electron-html-to:dedicated-process-strategy electron process exit with code: null and signal: SIGTERM
    2017-05-09T14:58:43.304Z - error: Error when processing render request Error during rendering report: Timeout when executing in electron Error: Timeout when executing in electron
        at Timeout._onTimeout (e:\sites\jsreports\www\node_modules\electron-html-to\lib\dedicatedProcessStrategy.js:272:20)
        at ontimeout (timers.js:386:14)
        at tryOnTimeout (timers.js:250:5)
        at Timer.listOnTimeout (timers.js:214:5) requestId=1
    
    2017-05-09T14:58:43.320Z - error: Error during processing request: http://jsreports/api/report/test details: Error during rendering report: Timeout when executing in electron Error: Timeout when executing in electron
        at Timeout._onTimeout (e:\sites\jsreports\www\node_modules\electron-html-to\lib\dedicatedProcessStrategy.js:272:20)
        at ontimeout (timers.js:386:14)
        at tryOnTimeout (timers.js:250:5)
        at Timer.listOnTimeout (timers.js:214:5)
    
    


  • When running without IISNode it works as expected. This setup works for me just as well..

    What's the best way to run jsreport as a windows service so that it starts op when the machine boots?


  • administrators

    @srijken you can use the winser module (that under the hood uses nssm, which you can use directly if you like) to wrap jsreport as a windows service where you can configure that the service should start on machine's boots.

    you can also use our jsreport win-install cli command to execute this for you



  • Thanks, that works



  • One more question about jsreport win-install: How can I configure it to run in production instead of develop?


  • administrators

    @srijken just set NODE_ENV = production before running the command, in windows is something like this: set NODE_ENV production && jsreport win-install



  • thanks again


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