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As galera node (slave) received query log events from an async replication master, it partially wrote the updates made to replication state table (mysql.gtid_slave_pos) to galera transaction writeset post TOI. As a result, the transaction handle, thus created within galera, was never freed/purged as the corresponding trx did not commit. Thus, it kept piling up for every query log event and was only reclaimed upon server shutdown when the transaction map object got destructed. Fixed by making sure that updates in replication slave state table are not written to galera transaction writeset and thus, not replicated to other nodes. |
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| .. | ||
| ha_innodb.cc | ||
| ha_innodb.h | ||
| handler0alter.cc | ||
| i_s.cc | ||
| i_s.h | ||