June 18, 2013

Post: How to load large files safely into InnoDB with LOAD DATA INFILE

InnoDB with LOAD DATA INFILE. The goal was to load this data on many servers without putting it into the binary logpurged, row versions. Later, the purge thread will have to clean these up. This is how you make InnoDB…/tmp/my-fifo ]; do time mysql -e “set foreign_key_checks=0; set sql_log_bin=0; set …

Post: MySQL 5.6: Improvements in the Nutshell

… improvements available in MySQL 5.6 which …Innodb data file extension – Non-Recursive Deadlock Detection – Faster Locking Primitives – Improved Innodb Thread Concurrency – Multiple background Purge Threads – Improved PurgeBinary Log – Fight Cache Coherence and False Sharing issues – Reduced Innodb

Post: Announcing Percona Server 5.1.66-14.2

… available here and from the Percona Software Repositories). Based on MySQL 5.1.66, including all the bug fixes in it…). Log tracking was initialized too late during the InnoDB startup. Bug fixed #1076892 (Laurynas Biveinis). Temporary files created by binary log cache were not purged

Post: MySQL Users Conference - Innodb

MySQLInnodb. Innodb Storage Engine was covered in a lot of talks, many of them done by InnodbMySQL 5.0+ Heikki also mentioned there are more things inside Innodb to unleash performance such as multiple purge threads or parallel log

Post: Percona Server 5.1.49-rel12.0

innodb_flush_log_at_trx_commit_session – Implements a session-level version of the MySQL global system variable innodb_flush_log… maximum purge delay defined by innodb_max_purge_lag by removing the requirement that purge …€ rather than “InnoDB” The binary packages are available on our website…

Post: MySQL 5.5.8 - in search of stability

…. For the initial tests, I used MySQL 5.5.8 (the tar.gz binary from dev.mysql.com), and for the other tests… innodb_log_file_size = 2000M innodb_log_files_in_group = 2 innodb_read_io_threads = 16 innodb_write_io_threads = 16 innodb_purge_threads=1 innodb_adaptive_flushing=1 innodb

Comment: Benchmarks of new innodb_flush_neighbor_pages

…questions/1568/clarification-on-mysql-innodb-flush-method-variable/1575#1575 Even though mysql 5.6 … Kernel Mutex, Multi-Threaded Purge, Separate Flush Thread, Pruning the InnoDB Table Cache This article …binary-log-file-size-matters/ [Quote] “Here’s what we did: we have reduced the size of binary log

Post: Recovering Innodb table Corruption

BINARY DATA… 080703 23:46:16 InnoDB: Page checksum 587461377, prior-to-4.0.14-form checksum 772331632 InnoDBinnodb_force_recovery modes to block purging activity, insert buffer merge or recovery from transactional logs

Comment: MySQL 5.5 and MySQL 5.6 default variable values differences

…_changes_in_mysql , in documentation now at http://dev.mysql.com/doc/…innodb_purge_batch_size is a performance enhancement, Should also be used in 5.5 to reduce purge overhead. innodbinnodb checksums in hardware, that 5.5 doesn’t understand, or the ability to write less information in the binary log

Post: Percona Server 5.1.49-rel11.3

MySQL 5.1.49. A new variable was introduced: innodbinnodb_flush_log_at_trx_commit_session. Fixed bugs Bug #576041 – Fixes long stalls while accessing the innodbpurge delay defined by innodb_max_purge_lag by removing the requirement that purge… resistent mode” The binary packages are available on…