… knowing that mysql does not have a way match the transactions as ‘global transactions id‘.I agree that matching logs is very tedious but…
Comment: Percona XtraDB Cluster Feature 2: Multi-Master replication
April 2, 2012 By 16 Comments
… the writesets. The reason for this is keeping track of global transaction ID and caching the writesets for potential IST. This overhead can… either unloading Galera wsrep provider or setting wsrep_on=0 globally. But that of course will effectively turn it into a…
Post: InnoDB's gap locks
March 27, 2012 By 14 Comments
… running transaction, two identical statements get different values, because some other transaction has modified the table’s rows. For example: transaction1> START TRANSACTION…` trx id 72C lock_mode X locks gap before rec If you have lot of gaps locks in your transactions affecting the… these two options is that the second one is a global variable that affects all sessions and needs a server restart…
Post: Emulating global transaction ID with pt-heartbeat
November 4, 2011 By 6 Comments
Global transaction IDs are being considered for a future version of MySQL. A global transaction ID lets you determine a server’s replication position reliably, among… pseudo global transaction ID into pt-heartbeat, the replication heartbeat tool included with Percona Toolkit. It has some of the benefits of a global transaction ID…
Post: Global Transaction ID and other patches available!
May 13, 2009 By 9 Comments
… internal mysql-team) made a great contribution to MySQL. Patches global transaction IDs, binlog event checksums and crash-safe replication state are separated… published on Launchpad (https://code.launchpad.net/~jtolmer/mysql-server/global-trx-ids). For me it was a big wall in using… or MySQL releases. If you do not know what is Global Transactional ID is – it is worth to look http://code.google.com…
Comment: Product to try: MySQL/MariaDB-Galera 0.8
June 13, 2011 By 34 Comments
… transactions: in fact Galera uses binary log events in ROW format. There is just no direct relation between binlog_event and Global Transaction ID… this case we need to have relation between LSN and Global Transaction ID, which should be possible).
Comment: Recovery beyond data restore
August 3, 2008 By 11 Comments
… that implements global transaction IDs so that SQL commands can be used to map between (master log file, master log pos) and global transaction IDs. This will allow slave failover to be done by running a few SQL commands with no loss of transactions.
Comment: Flexviews is a working scalable database transactional memory example
May 19, 2011 By 3 Comments
… future of the PHP replication plugin….What?…Think of a global transaction ID as a unique identifier for a change set in a… transaction…CREATE TABLE trx .trx id BIGINT UNSIGNED NOT NULL. ENGINE memory ..INSERT INTO trx VALUES 0 ..When ever you commit a transaction UPDATE the trx id field ..UPDATE trx SET trx id trx id 1.From ….Dear MySQL database…
Comment: Product to try: MySQL/MariaDB-Galera 0.8
June 13, 2011 By 34 Comments
… replication: it should be possible to just replay the lost transactions, not having to do a full copy. Does this mean… log? Since they have global transaction id’s, a disconnected slave could just ask to get all transactions after a certain id. Of course, xtrabackup…
Comment: MySQL Replication vs DRBD Battles
May 1, 2008 By 12 Comments
… feature to keep the InnoDB transaction log and slave replication state in sync after a crash (transactional replication). But the most interesting… redo support for hierarchical replication and transparent slave failover with global transaction IDs.
