Well merged, it is the same problem, sorry for duplicating.
Loking at the suggested patch [1] it enters on an infinite loop, this is
why the 100% of CPU.
Also I run the test to see when the program is on deadlock:
* Start using a default schema -> deadlock
* Select an schema executing "use databasename;" -> deadlock
* Select an schema with the UI -> deadlock
* Using UI: File / Select schema / Choose / Ok -> deadlock
* Executing "select user, host from mysql.user ;" -> works ok
The patch only disable the pause at the MQQueryDispatcher::get_sps
method, the patch should try to escape from the infinite loop after a
timeout or something, the line is:
while(!req->is_complete()) ;
req is defined as an object from the class SPFetchRequest wich is an
inherith class from MQQueryDispatcher::Request wich define the method
is_complete as:
bool is_complete() const { return complete; }
I don't use C++ for a while but I don't see any problem but complete
property is never changed.
The method before "MQQueryDispatcher::get_tables" has the same procedure
but commented like this:
//while(!req->is_complete())
// ;
I don't know if commenting while(!req->is_complete()) this is wright or
wrong, it seems to work.
[1] https://bugzilla.redhat.com/attachment.cgi?id=218451
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Carlos C Soto :: SIA Solutions
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