mysql同时开启IO线程以及Dump线程

当MySQL同时开启IO线程和Dump线程时，IO线程负责从主库拉取binlog并存储到本地的relay log，而Dump线程则负责将从库发送COM_BINLOG_DUMP_GTID指令给主库，主库dump线程会执行com_binlog_dump_gtid函数来处理这个指令。\[1\]\[3\]这两个线程在MySQL复制中扮演不同的角色，IO线程用于同步主库的binlog到从库的relay log，而Dump线程用于从主库获取binlog的内容。\[1\]\[3\]这样可以保证从库能够及时获取到主库的更新，并将其应用到从库上。\[1\]\[3\]
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- *1* *2* [mysql主从复制io线程源码分析](https://blog.csdn.net/weixin_35853363/article/details/113114473)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
- *3* [MySQL dump线程分析](https://blog.csdn.net/weixin_35011928/article/details/113476453)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
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