wsrep_slave_threads can be set without a warning or error
Bug #978971 reported by
shinguz
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
MySQL patches by Codership |
New
|
Undecided
|
Unassigned |
Bug Description
When I set
SET GLOBAL wsrep_slave_threads = n;
It is accepted by mysql and even reflected by show global variables. But I have learned that it is only taken into account after reload of provider which means in practice: restart the database.
which means in practice: this variable cannot be set-online.
Erkules and I have the opinion, that this is NOT expected behavior and should through at least a warning or better be prohibited at all...
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Related to https:/ /bugs.launchpad .net/codership- mysql/+ bug/852094
Oli,
Provider relaoding is not equivalent to restarting the database since you keep yer buffer pool and is a much faster operation. So it is not absolutely obvious that it should be made a read-only variable.