Update Manager – Upgrade File Upload Fails

This was a bit of a strange one that I came across when trying to upload the ESXi 5.1 Update 1 iso to an Update Manager in preparation to upgrade an ESXi 4.1 host to the latest version.

I was able to select the iso file but then came across the following error message when trying to actually upload it:
Failed to login. Error was: A web exception has occurred during file upload’

By performing a google search, as most of us would do when faced with an unusual message like this, I came across a VMware article that mentioned about Antivirus software causing issues with uploads for Update Manager.  I went ahead and disabled the Antivirus software and tried again but the same error occurred.

Finally, I stumbled across an article by Damian Karlson (http://damiankarlson.com/2011/01/03/file-upload-failed-vmware-update-manager/) where he had basically been through the same troubles as I had.  The solution that worked for him and subsequently worked for me was to stop the update manager service and then kill off any zombied Java processes before starting up the update manager service again.  Here are the exact steps:

  1. Log into your VMware Update Manager server
  2. Go into services and stop the VMware Update Manager Service (you don’t need to worry about the EFA service)
  3. Open up the Task Manager on the server and go to the ‘Processes’ tab
  4. Order the processes by name and look for the Java.exe or Java.exe *32 processes
  5. On each one, right mouse click and select ‘Open File Location’
  6. If the file location opens to the Update Manager bin directory then this is a zombied proces to kill
  7. Go back to the process, right mouse click on it again and then select ‘End Process’
  8. Repeat these steps for the remaining Java.exe or Java.exe *32 processes
  9. Go back into service and start up the VMware Update Manager Service again
  10. Close down your vSphere Client or web client and then log back on again
  11. Perform the upload of the file again, which should complete successfully.

About the Author


I have been in IT for the past 15 years and using virtualisation technologies for around the past 8 years. I started, as quite a lot of people do, working with PCs after playing with such iconic systems like the ZX81, ZX Spectrum and then progressing through 386s, 486s, Pentiums etc. After being headhunted at sixth form to work for a small company based around Hertfordshire, UK. I began working with small businesses and gaining a lot of hardware experience. Three years later, after helping to increase the size of the business, I needed to gain exposure to a larger environment to progress my own career. I joined a large manufacturing company around Electronic Test and Measurement which progressed my skills onto more PC work, hardware work and then onto Server Operating Systems. I progressed again onto a consultancy company based in Reading, UK. Initially working as an engineer performing hardware / software installations for larger companies contracted out to the consultancy company, I moved up into a Consultant position continuing my travel across the UK assisting and providing solutions to companies. I finally moved on again to my current position, working back in Hertfordshire, UK. Again working for a large manufacturing company, this time with over 50,000 users worldwide. I am responsible for the datacenter hardware, the storage environment, the vmware environment and also implementing their new Citrix XenApp farm. My days are busy but also productive, its a friendly environment and in my four years of being with the company, I have seen many changes in technology and infrastructure in use within the company. About the site I started this site as I had been thinking of having more of a presence on the web for a while. On a daily basis, I perform tasks and use tools that others may not use or may not think to do and therefore I thought that I would share some of these experiences and tips with others to help with their day to day work. Currently, my main focus of work is around VMware and Veeam Backup & Replication but hopefully as my tasks progress, I’ll be able to share useful bits of information about other areas of IT as well.

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