The plug-in execution failed because no Sandbox Worker processes are currently available

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Hi everyone,

I have a problem when I use plugin to upload large file on Crm online. This error is "The plug-in execution failed because no Sandbox Worker processes are currently available. Please try again.System.ServiceModel.CommunicationException: Microsoft Dynamics CRM has experienced an error".

Please help me to solve this problem.

Thanks,

Toten

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PS 23,577 on at

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Following URLs might help you:

social.microsoft.com/.../the-plugin-execution-failed-because-no-sandbox-worker-processes-are-currently-available

community.dynamics.com/.../109508.aspx

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Community Member on at

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I didn't find any solution to resolve the problem.

I use Console Application upload 1 file about 20Mb to CRM online (I register one plugin to validate file) and get the error above.

If you have other solution please send me.

Thanks,

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ScottDurow 21 on at

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Have you increased the max attachment size as per blogs.msdn.com/.../caveats-for-setting-the-maximum-file-size-limits-for-attachments-in-crm-2011.aspx

I think this kind of issue is caused by the sandbox host crashing in some unhandled way.

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Thanks Scott,

I changed maximum file to 32Mb but the error was still appear when I use plugin to validation file ( file about 20Mb). Could you suggest me other solution to resolve the probleam

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ScottDurow 21 on at

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I suspect that your issue is in the plugins handling of large files. Remove any pre/post images and start stripping out the logic until oy starts working. This will show you what the cause is.

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Exactly, If I disable plugin the error don't appear but I still want to use plugin to custom logic. I'll try to resolve it if you have other ideal please send me.

Thanks

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NatrajY 3,040 on at

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Last time something like this happened we requested for a different scalegroup and our org was put in a different scalegroup, to test whether that was the issue. But unfortunately that did not fix the issue in our case, and I had to rewrite some plugins and workflows to fix the issue, because they were taking too much time to execute.

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Kjeld Poulsen 180 on at

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If your plugin is producing and endless loop this will be the error message. Typically when running .NET code, you will see at stackoverflow if the endless loop apears in your code, but running inside Dynamics 365 worker process, the "no Sandbox Worker proesses are currenctly available" exception will be thrown.

Adding trace to your log plugin using the Microsoft.Xrm.Sdk.ITraceService might be able to give you a clue, but not always, because the process writing these messages to the error might also be thrown away in the stackoverflow, if that is the case, try remove fragments of your code in the plugin, to find the part of code that has an endless loop. In my case it was a trivial misspell on a property in a class

[public string MyString => MyString] should have been [public string MyString => _mystring;] pretty hard to find when such code is deep down in a sub class, used in a linq expression or similar.

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