Magento – Random Installation Wizard Redirect Magento 1.9.0.1

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I have an install of Magento 1.9.0.1 community edition that is all ready to launch except one problem I continue to run into. Randomly at different times it will redirect to /index.php/install/.

I have cleared the cache and sessions many times, even restarted the server after clearing the cache and sessions twice as another poster had said worked for him. But after a short period of time of success, this problem keeps popping up.

I checked to make sure that my local.xml file is there and has the install date in it. So that checks out just fine. I compared it to other Magento installs I did (none running 1.9 though as this is my first) and the file looks fine. Also, I have error and exception logging turned on with nothing being logged on this.

The tricky thing is that it doesn't always do it, but randomly. I can get around it by just going back to the page I was trying to browse through, but don't want visitors to see this redirect.

There doesn't seem to be a particular category, event, time of day, etc that triggers the redirect more often. Sometimes I can go 60 minutes without the redirect to install and other times I get the problem a few times a minute.

Any help that anyone can provide is appreciated.

Thanks!

Best Answer

DISCLAIMER : All Credit of this answer goes to @Moonman67 and I just copied his answer from the question which he pasted to the question by an edit.

This is a real issue.

We had this issue occur in Magento Enterprise 1.14 running RedHat with PHP 5.3.3 (still occurs in 5.3.28)

It was related to the SOAP API. Hitting any of the SOAP APIs will cause the 404/install redirect behaviour. This is why it appears randomly (if you have something hitting the SOAP API on a periodic schedule)

The cause of the issue was a PHP Bug Magento is now aware of this issue and has a patch for it (PATCH_SUPEE-3762_EE_1.14.0.1_v1.sh).