A performance optimization put into TM1 9.4.1 FP2 creates the possibility of a server crash after deleting any cubes on the server.
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It is possible in the short term to set a configuration parameter in the tm1s.cfg that turns off the new behavior and would thus avoid this potential crash.
IBM Cognos support recommends anyone running 9.4.1 FP2 turn it off until a fix can be provided. It does require restarting the server after making the change.
Parameter to put in the tm1s.cfg:
InvalidateRuleDependenciesOnDataChange=T
or
InvalidateRuleDependenciesOnDataChange=True
Then restart the server.
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