Mysql 5 6 Innodb Support Xa

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MySQL :: MySQL 5.6 Reference Manual :: 14.14 InnoDB ...

    https://dev.mysql.com/doc/refman/5.6/en/innodb-parameters.html
    The default value for innodb_checksum_algorithm was changed from innodb to crc32 in MySQL 5.6.6, but switched back to innodb in 5.6.7 for backward compatibility of InnoDB data files, and for use with MySQL Enterprise Backup. The limitations encountered included:

MySQL :: MySQL 5.6 Reference Manual :: 13.3.7 XA Transactions

    https://dev.mysql.com/doc/refman/5.6/en/xa.html
    Among the MySQL Connectors, MySQL Connector/J 5.0.0 and higher supports XA directly, by means of a class interface that handles the XA SQL statement interface for you. XA supports distributed transactions, that is, the ability to permit multiple separate transactional resources to participate in a global transaction.

MySQL :: MySQL 5.5 Reference Manual :: 13.3.7 XA Transactions

    https://dev.mysql.com/doc/refman/5.5/en/xa.html
    Among the MySQL Connectors, MySQL Connector/J 5.0.0 supports XA directly (by means of a class interface that handles the XA SQL statement interface for you). XA supports distributed transactions, that is, the ability to permit multiple separate transactional resources to participate in a global transaction.

What is innodb_support_xa? - Percona Database Performance Blog

    https://www.percona.com/blog/2011/03/02/what-is-innodb_support_xa/
    Mar 03, 2011 · What is innodb_support_xa? 02 Mar 2011. By Baron Schwartz Insight for DBAs, MySQL 5 Comments. A common misunderstanding about innodb_support_xa is that it enables user-initiated XA transactions, that is, transactions that are prepared and then committed on multiple systems, with an external transaction coordinator. ... James Day, MySQL Senior ...

MySQL :: MySQL 8.0 Reference Manual :: 13.3.8.3 ...

    https://dev.mysql.com/doc/refman/8.0/en/xa-restrictions.html
    XA transaction support is limited to the InnoDB storage engine. For “ external XA, ” a MySQL server acts as a Resource Manager and client programs act as Transaction Managers. For “ Internal XA ”, storage engines within a MySQL server act as RMs, and the server itself acts as a TM.Internal XA support is limited by the capabilities of individual storage engines.

MySQL :: MySQL 5.6 Reference Manual :: 13.3.7.3 ...

    https://dev.mysql.com/doc/refman/5.6/en/xa-restrictions.html
    XA transaction support is limited to the InnoDB storage engine. For “ external XA, ” a MySQL server acts as a Resource Manager and client programs act as Transaction Managers. For “ Internal XA ”, storage engines within a MySQL server act as RMs, and the server itself acts as a TM.Internal XA support is limited by the capabilities of individual storage engines.

In MySQL, why is it safe to turn off innodb_support_xa for ...

    https://stackoverflow.com/questions/6067093/in-mysql-why-is-it-safe-to-turn-off-innodb-support-xa-for-single-threaded-updat
    Nov 22, 2011 · @Sebas comment is a little vague, according to MySQL docs: "innodb_support_xa is deprecated and will be removed in a future MySQL release. InnoDB support for two-phase commit in XA transactions is always enabled as of MySQL 5.7.10" So it is deprecated, but only because it will always be on. – Mike Purcell Apr 13 '16 at 15:44

Improvements to XA Support in MySQL 5.7 MySQL Server Blog

    https://mysqlserverteam.com/improvements-to-xa-support-in-mysql-5-7/
    Jun 22, 2016 · Introduction. XA stands for “eXtended Architecture”, and is a standard created by The Open Group for distributed transaction processing. While MySQL 5.0 was the first version to support XA, MySQL 5.7 has removed major limitations, fixed a number of bugs, and increased overall test-case coverage.

MySQL Bugs: #53449: No way to turn innodb_support_xa ...

    https://bugs.mysql.com/bug.php?id=53449
    If this was selected and changes applied the confirmation dialog indicated the following changes were made: Added: [mysqld] innodb_support_xa = True However, what was added to the my.cnf file was “innodb_support_xa”. This meant there was no way to set this parameter, which defaults to True, to False using MySQL Workbench.

MySQL Bugs: #81800: sync_binlog and innodb_support_xa ...

    https://bugs.mysql.com/bug.php?id=81800
    Posted by developer: For version 5.5, 5.6, 5.7, and 8.0 versions of the reference manual, this text: "The effect of this option is that at restart after a crash, after doing a rollback of transactions, the MySQL server removes rolled back InnoDB transactions from the binary log."



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