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10.5 MDEV 31905 teemu #374

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@temeo temeo commented Dec 1, 2023

  • MDEV-31905 GTID inconsistency
  • Add node2 into node3 wsrep_cluster_address in galera_3nodes cnf

sjaakola and others added 2 commits November 30, 2023 18:04
@sjaakola
MDEV-31905 GTID inconsistency
94993fe 
This commit fixes GTID inconsistency which was injected by mariabackup SST.
Donor node now writes new info file: donor_galera_info, which is streamed
along the mariabackup donation to the joiner node. The donor_galera_info
file contains both GTID and gtid domain_id, and joiner will use these to
initialize the GTID state.

Commit has new mtr test case: galera_3nodes.galera_gtid_consistency, which
exercises potentially harmful mariabackup SST scenarios. The test has also
scenario with IST joining.
@temeo
Add node2 into node3 wsrep_cluster_address in galera_3nodes cnf
5e54c93 
This is supposed to make cluster startup more stable.
It is often seen in logs that the cluster partitions
around SST when servers are started for galera_3nodes suite.
It is suspected that this happens because the node3 connects
only to node1, which causes concurrent connection attempts
between node2 and node3, which in turn results in cluster
partitioning.
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@temeo @sjaakola