Grouper : Error : Cache write preparation failed

Grouper - Documentation

Attempt to open and lock cache failed

Explanation

When Grouper is about to update a cache file or database record, it first locks it to ensure that another Grouper process doesn't attempt to update the same cache at the same time. The attempt to open or lock the cache failed.

Causes and Solutions

Another Grouper process has already locked the cache and is taking a long time to update it, probably because the server that the source data is coming from is slow: This problem should fix itself within a few seconds.
If another error message is shown at the same time as this message, fixing the other problem may fix this problem too.

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