[doc] wsrep_sst_donor can be overridden by IST preference
Bug #1401558 reported by
Jay Janssen
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | ||
---|---|---|---|---|---|---|
Percona XtraDB Cluster moved to https://jira.percona.com/projects/PXC | Status tracked in 5.6 | |||||
5.5 |
Invalid
|
Undecided
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Unassigned | |||
5.6 |
Fix Released
|
Medium
|
Alexey Zhebel |
Bug Description
Newer versions of Galera take into account IST possibility when selecting a donor (by checking the gcache contents). I discovered that even if you select an explicit wsrep_sst_donor, Galera will still choose a different donor if our selection cannot IST.
This behavior could be arguably a bug, but either way we should document its behavior properly in the manual (it is not).
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Yes, that has been the behavior since Galera 3.5 when smart donor selection was introduced. It applies to State transfer in general now, and so wsrep-sst-donor is also affected.