We've been running Confluence 6.9.1 for a few weeks with out this issue.
Since yesterday we can no longer create new pages from any template that includes a label by default. Such as 'Product Requirements' template will include 'requirements' label.
The page can be created, but it can not be saved until the label is removed. The error I see from users perspective is:
Unable to communicate with server. Saving is not possible at the moment.
on removing the label/s, the page saves OK.
Similarly, for an existing page I can no longer add a label, in the label window I can select existing labels but on clicking "ADD" I get the following error:
com.atlassian.confluence.api.service.exceptions.ServiceException: Failed to add entry to queue
Thus I believe the issue I have here is within the labels.
I do not know what has changed. I have recently installed the Multi-vote plugin, and as part of problem solving have since disabled that plugin - which made no difference.
I have checked the database configuration as per:
which looks correct.
I do not use collaborative editing (stuck on IIS 6.0).
Any thoughts or suggestions?
EDIT: Confluence logs, from the point of clicking "ADD" in the label dialog.
Thanks for attaching those logs - they were super helpful! It looks like this is the error that's causing the issue:
Caused by: org.springframework.dao.DataAccessResourceFailureException: Failed to read id for journal 'main_index': For input string: " "; nested exception is java.lang.NumberFormatException: For input string: "
This can be caused by a corrupt index and ‘main_index’ file which can happen sometimes after an upgrade. To fix it, please follow the guide below:
Hope it helps!
Thank you Rachel for your help, and for highlighting the key information in the logs.
I followed the how-to linked in your link:
I've removed those index and journal directories and re-index confluence - the problem is now resolved.
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