Details
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Type:
Task
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Status: Open
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Priority:
Major
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Resolution: Unresolved
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Fix Version/s: None
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Component/s: Galera
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Labels:None
Description
I created a first Galera node (with MariaDB 10.0.13 Galera). Then, i attached 2 another nodes. After a while, i created another cluster. But the gtid_domain_id was the same within the 2 clusters...
It has broken a slave which was slave on both cluster (multi-master technology on mariadb 10.0.13 standalone).
After a while, i found the problem being 2 cluster having the same GTID domain. So i changed online the gtid_domain_id on the first cluster. But as the instruction is not replicated, it was not played at the same time on the 3 nodes. After the change, the sequence number of the couple (domain_id-server_id) for the server_id of the first node was differents on the 3 nodes! All writes comes from the first master... But on each node the sequence number is not the same (domain_id-server_id is the same). Definitively, i think that sequence must depend on the server receiving the writes... And transmit by the Galera framework, to ensure consistency of the sequence number.
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