Hi, I mentioned this on https://commons.wikimedia.org/wiki/Commons:Village_pump#Watchlist:Database_error
Since a couple of weeks I get an error message like this one when I attempt to check my watchlist:
**A database query error has occurred. This may indicate a bug in the software.[WXhEMgpAMFAAAL@zCgEAAAAO] 2017-07-26 07:27:42: Fatal exception of type "Wikimedia\Rdbms\DBQueryError"
**This occurs 9 times of 10, both on Internet Explorer and Mozilla.
As suggested on Commons Village pump I tried to clear the watchlist with https://commons.wikimedia.org/wiki/Special:EditWatchlist/clear
The result of it was:
Database error To avoid creating high replication lag, this transaction was aborted because the write duration (4.9122259616852) exceeded the 3 second limit. If you are changing many items at once, try doing multiple smaller operations instead. [WXpB5wpAADoAAJE2SnYAAACW] 2017-07-27 19:42:31: Fatal exception of type "Wikimedia\Rdbms\DBTransactionSizeError"
Thanks for checking this.