CMS locks down completely after a modest load test

Hi all,

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Introduction:
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In our acceptance environment we have encountered a bug where the CMS locks down completely after running with ~5 actual concurrent human users.
In order to narrow down and reproduce this issue, we have taken your quickstart version of the CMS 2.09.04, and applied a simple automated load test which enabled us to reproduce the issue.

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Reproduction of the issue:
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We followed the instructions on:

http://www.onehippo.org/cms7/documentation/quickstart.html

and downloaded the quickstart from here:

http://repository.hippocms.org/maven2/org/hippoecm/hippo-ecm-quickstart-bin/2.09.04/hippo-ecm-quickstart-bin-2.09.04.zip

Without further modifications, we started the CMS quickstart on a developer notebook.

We used a load testing tool called "Pure Load" (trial version) that allows recording and replaying of http requests.
See: http://www.minq.se/products/pureload/

As such, we set up our test to simulate 5 concurrent clients that perform the following steps for an infinite amount of time.
Note that the scenario below was run from a simple notebook as well.

• login to the cms under unique user credentials
• navigate to the news folder
• create a new newsitem with a unique name (counting up)
• save the newsitem (including 'done', and closing tab)
• navigate back to the document root
• log out of the cms

Results:

After running this test setup for 5 to 10 minutes we observe that requests from the load tool no longer are served.
Trying to login to the CMS from a browser with no running session (clear cache) results in a timeout: the login form does show, login times out...

Users with a running session in the CMS, are capable of navigating through the CMS without visible issues.
Logging out such a user, will result in a timeout, trying to logout.

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Further information:
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See attachments.

• Deployment: clean Hippo 7.2 (2.09.04)
• Tool: PureLoad (free edition, trial version)
• Test Script: see attachment
• Nr of workers: 5 (logical names: scenario0 ... scenario4)
• Nr of threads: 5 (one per worker)

The script uses five (admin)users in the CMS:

• dennis0 / dennis0
• dennis1 / dennis1
• dennis2 / dennis2
• dennis3 / dennis3
• dennis4 / dennis4

We used a 6th user (just admin/admin) to monitor activity in the CMS while performing the test.

We are sure you can help us out.
If you need any more information, let us know.

–
Rob van der Linden Vooren | Software Engineer | JTeam | T: +31(0)2-04862036 | www.jteam.nl
General conditions apply