Severe exception after upgrading to confluence 5.1.3

Recently we have upgraded to confluence development to latest 5.1.3.

After a day or two the server started throwing "SEVERE: Exception Processing ErrorPage[errorCode=500, location=/500page.jsp]" while I tried restarting confluence, checking the memory usage the solution was to remove the plugin cache directories.

But soon after that the login page came up as garbled and it started throwing "

confluence Too many open files"

which seems to have resolved after I changed the max open file from 1024 to 4096.

My question is what can assure me that this won't be happening when we upgrade Production confluence. And what was the real reason in the first place for the above mentioned errors.

Moinul Rony

1 answer

1 accepted

0 votes
Answer accepted


The assurace we can give in this case are limited. Idealy you have mocked up a test upgrade in an environment that mirrors production as closely as possible. We won't know if you will need to flush your plugin cache in your production upgrade, but it is likely the case.

It is also highly likely that you will need to change the ulimit on production as well.

If you want a better gaurentee of how your upgrade will go in production, perform the mock upgrade again. Clone production over to a new test environment and try the upgrade again, this time performing your mitigations first. If everything goes off without a hitch you can be reasonably certain that your production upgrade will follow suit.

Suggest an answer

Log in or Sign up to answer
Community showcase
Published Mar 12, 2019 in Confluence

Confluence Admin Certification now $150 for Community Members

More and more people are building their careers with Atlassian, and we want you to be at the front of this wave! Important Dates Start the Certification Prep Course by 2 April 2019 Take your e...

863 views 2 13
Read article

Atlassian User Groups

Connect with like-minded Atlassian users at free events near you!

Find a group

Connect with like-minded Atlassian users at free events near you!

Find my local user group

Unfortunately there are no AUG chapters near you at the moment.

Start an AUG

You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs

Groups near you