topic Re: Errors in the QMC task run in QlikView

Errors in the QMC task run

navaneethqv — Mon, 26 Jan 2026 18:19:17 GMT

Hi,

We are getting some random errors nowadays for the scheduled QMC task run. The same task would run without any issues on a day and will generate errors on another day. In all cases, a manual rerun of the task solves the issue. But we are not sure what is causing the errors. The type of error includes

"QDSMain.Exceptions.DistributionFailedException: Distribute failed with errors to follow. ---> QDSMain.Exceptions.ReloadFailedException: Reload failed ---> QDSMain.Exceptions.FailedDocumentCheckoutException: Failed to check out document with path " and

"The sourcedocument failed to open.. Exception=System.Runtime.InteropServices.COMException (0x80004005): Error HRESULT E_FAIL has been returned from a call to a COM component."

We have both Publisher and QVS running on the same server. The server has 8 Core 2.70 GHz processor, with 32 GB RAM. We don't have more than 3 consecutive tasks running at a time and the 'max simultaneous QV engines for Distribution' has been set as 7. The version of Qlikview is 11.0.11282.0 SR1 64 Bit edition.

Is there any way to avoid these errors? Attached are the task log files.

Regards,

Navaneeth

Re: Errors in the QMC task run

marcus_sommer — Thu, 12 Jan 2017 09:18:21 GMT

Helpful for solving such issues would be to compare the script-logs of these tasks and to monitor the CPU + RAM consumption while the reload. For this would be the QlikView Governance Dashboard quite useful.

Beside them the release of SR1 is quite old and an upgrade to SR16 or maybe the latest release of QV 12 should be considered.

- Marcus

Re: Errors in the QMC task run

navaneethqv — Thu, 19 Jan 2017 22:12:47 GMT

Marcus,

Thanks for the reply!!! I tried analyzing using the Governance dashboard 2.0.2. But I couldn't get any CPU usage or RAM value for the time at which the task failed. Please find attached the screenshot.

Re: Errors in the QMC task run

marcus_sommer — Fri, 20 Jan 2017 06:09:48 GMT

I couldn't say what don't worked - maybe some configurations to the paths or other details aren't correct or these log-files are missing. You might need to check this again - and beside these specific tasks could you monitor any other tasks with this tool?

- Marcus

Re: Errors in the QMC task run

Fri, 20 Jan 2017 09:10:32 GMT

QDS logs are usually useless. Turn on logs in qvw file and launch task again. It will create load log with proper error.

Re: Errors in the QMC task run

Chip_Matejowsky — Fri, 20 Jan 2017 16:03:42 GMT

Hello Navaneeth,

A possible reason for this error is the presence of NULL values in the tables that the document loads data from. In such case a solution can be redefined NULL values during load by using the NullAsValues function.

For example:

nullasvalue BAccountFrom, BAccountTo;

MyTable:
IntervalMatch (AccountNumber)
load BAccountFrom, BAccountTo

resident BRegularRows;

Re: Errors in the QMC task run

navaneethqv — Fri, 20 Jan 2017 17:57:39 GMT

Hi Chip,

Thanks for your response!!! We had a failure again today as well for the scheduled task. There was no other task running at the time of this run. But a manual rerun of the task after some time, the task was running without any issues.

"The sourcedocument failed to open.. Exception=System.Runtime.InteropServices.COMException (0x80004005): Error HRESULT E_FAIL has been returned from a call to a COM component."

We are getting this failures on very random days. So the doubt is, if the NULL values are causing the issue, it should occur daily. Please correct me if I am wrong. Also as per the document log, the entire script got run (execution was finished). As per the task log, the error came when it tried to open the document with data. What should I decipher from this information? Please find attached the Document and task log.

Regards,

Navaneeth

Re: Errors in the QMC task run

navaneethqv — Fri, 20 Jan 2017 18:03:46 GMT

HI Artem,

Thanks for the reply!!! The QVW log file is enabled. As per the document log, the script execution is finished. But as per the task log, the error was coming when the engine tried to open QV document with data.

Regards,

Navaneeth

Re: Errors in the QMC task run

navaneethqv — Fri, 20 Jan 2017 18:10:33 GMT

Hi Marcus,

The document and task logs are present in the Qliktech folder. Also the event logs are present. Please find attached the configuration that was used. I am new to the Governance dashboard, so I am not sure if I am checking it correctly.

Regards,

Navaneeth

Re: Errors in the QMC task run

marcus_sommer — Sat, 21 Jan 2017 10:14:12 GMT

The screenshot looked ok. and I don't know what could be wrong with them - will other tasks, sessions and events be displayed? Maybe you could find some trouble-shooting within the governance dashboard group.

Beside them you could also load these log-files in an own qvw - just like any other data-sources (plus adding a master calendar/timetable or some appropriate fields of them) - and then will a few tableboxes and listboxes you will also get a good overview about what's going on (it won't look so nice like the governance dashboard and some additional features/informations aren't included - but it will be quite useful to get the needed insights).

- Marcus

Re: Errors in the QMC task run

marcus_sommer — Sat, 21 Jan 2017 10:19:07 GMT

Although the run-time of the script isn't very long I think that a split into several specialized qvw's would be useful. The tasks could be run independently and also parallel to eachother and it would make a trouble-shooting more easier.

- Marcus