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Searching returns "This operation returned because the timeout period expired."

Former Member
Former Member
I have add around 192.000 pdf files to my vault.
When enter some term in the search box (no meter is it M-Files client, mobile M-Files or M-Files web), it returns the following error:

M-files web:
This operation returned because the timeout period expired.
Error reference ID: 9d19d9c8-80d2-47ed-92a2-8007f7ed2bc6


M-files client:
This operation returned because the timeout period has expired.


Details of the error are:
ShellFrameWnd.cpp, 4700, This operation returned because the timeout period expired. (0x8979000D)
ShellFrameWnd.cpp, 15697, This operation returned because the timeout period expired. (0x8979000D)
DocListView.cpp, 3076, This operation returned because the timeout period expired. (0x8979000D)
DocListView.cpp, 10664, This operation returned because the timeout period expired. (0x8979000D)
DocListView.cpp, 11170, This operation returned because the timeout period expired. (0x8979000D)
CoShellFolder.cpp, 3947, This operation returned because the timeout period expired. (0x8979000D)
VaultSearchOperations.cpp, 58, This operation returned because the timeout period expired. (0x8979000D)
VaultSearchOperations.cpp, 144, This operation returned because the timeout period expired. (0x8979000D)
ThreadOutCaller.cpp, 67, This operation returned because the timeout period expired. (0x8979000D)
ThreadOutCaller.cpp, 583, This operation returned because the timeout period expired. (0x8979000D)
VaultMethodCallTasks.cpp, 185, This operation returned because the timeout period expired. (0x8979000D)
CoVaultMountingSearch.cpp, 152, This operation returned because the timeout period expired. (0x8979000D)
VaultStateSearch.cpp, 197, This operation returned because the timeout period expired. (0x8979000D)
ListingCache.cpp, 467, This operation returned because the timeout period expired. (0x8979000D)
ListingCache.cpp, 1502, This operation returned because the timeout period expired. (0x8979000D)
ListingCache.cpp, 1800, This operation returned because the timeout period expired. (0x8979000D)
ListingCacheNode.cpp, 919, This operation returned because the timeout period expired. (0x8979000D)
ListingCacheNode.cpp, 1169, This operation returned because the timeout period expired. (0x8979000D)
ListingCacheNode.cpp, 9845, This operation returned because the timeout period expired. (0x8979000D)
ListingCacheNode.cpp, 5091, This operation returned because the timeout period expired. (0x8979000D)
ListingCacheNode.cpp, 13024, This operation returned because the timeout period expired. (0x8979000D)
RPCMethodCallWithRetry.h, 43, This operation returned because the timeout period expired. (0x8979000D)
RPCMethodCallWithRetry.h, 43, This operation returned because the timeout period expired. (0x8979000D)
RPCSearch.cpp, 871, This operation returned because the timeout period expired. (0x8979000D)
RPCSearch.cpp, 282, This operation returned because the timeout period expired. (0x8979000D)
MCallInLoop.h, 319, This operation returned because the timeout period expired. (0x8979000D)
RPCSearchHelper.cpp, 1962, This operation returned because the timeout period expired. (0x8979000D)
RPCSearchHelper.cpp, 2956, This operation returned because the timeout period expired. (0x8979000D)
RPCSearchHelper.cpp, 3148, This operation returned because the timeout period expired. (0x8979000D)
RPCSearchHelper.cpp, 5383, This operation returned because the timeout period expired. (0x8979000D)
RPCSearchHelper.cpp, 5846, This operation returned because the timeout period expired. (0x8979000D)
RPCSearchHelper.cpp, 14690, This operation returned because the timeout period expired. (0x8979000D)
RPCSearchHelper.cpp, 14853, This operation returned because the timeout period expired. (0x8979000D)
RPCSearchHelper.cpp, 14816, This operation returned because the timeout period expired. (0x8979000D)
RPCSearchHelper.cpp, 15093, This operation returned because the timeout period expired. (0x8979000D)
RPCSearchHelper.cpp, 15388, This operation returned because the timeout period expired. (0x8979000D)
RPCSearchHelper.cpp, 15567, This operation returned because the timeout period expired. (0x8979000D)
ObjectSearcher_FullInfo.cpp, 904, This operation returned because the timeout period expired. (0x8979000D)
ObjectSearcher_FullInfo.cpp, 1144, This operation returned because the timeout period expired. (0x8979000D)
SearchSQLHelper.cpp, 4247, This operation returned because the timeout period expired. (0x8979000D)
SearchSQLHelper.cpp, 3265, This operation returned because the timeout period expired. (0x8979000D)
SearchSQLHelper.cpp, 6650, This operation returned because the timeout period expired. (0x8979000D)
SearchSQLHelper.cpp, 6447, This operation returned because the timeout period expired. (0x8979000D)
SearchSQLHelper.cpp, 5082, This operation returned because the timeout period expired. (0x8979000D)
PreprocessedSearchCondDynamicData.cpp, 75, This operation returned because the timeout period expired. (0x8979000D)
CoFullTextSearchRunner_Inline.cpp, 867, This operation returned because the timeout period expired. (0x8979000D)
CoFullTextSearchRunner_Inline.cpp, 867, This operation returned because the timeout period expired. (0x8979000D)
(M-Files 12.0.6550.8)


Can please explain why do I get this error and how to fix it?

I have enabled phony and fuzzy search.

Even if it doesn't return an error, it is slow (sometimes 2 seconds, sometimes 15 seconda).