If this problem occurs, the following entry is logged in the ULS log:
mssearch.exe (0x0FFC) 0x205C Search Server Common Exceptions 0 Monitorable
<msgtype>Merge Failed</msgtype><mergeType>0x1, Flush</mergeType>
<HR>The query was too complex to be executed. 0x80041606 </HR>
- Under Application Management, click Manage web applications.
- On the Service Applications tab, click Search Service Application.
- Under Queries and Results in the navigation pane, locate and then click Scopes.
- In the details pane, open each scope to see how many rules it contains.