June 19, 2013

Post: MySQL and the SSB - Part 2 - MyISAM vs InnoDB low concurrency

….sock user=justin innodb_buffer_pool_size=64G innodb_log_file_size=4G innodb_file_per_table innodb_stats_on_metadata=off innodb_file_format=barracuda innodb_log_buffer_size=32M innodb_buffer_pool_instances=16 metadata_locks_hash_instances=32 table_open_cache_instances=8 sort_buffer_size…

Post: Migrating between MySQL schemas with Percona Xtrabackup

… that data into and pollute the buffer pool.  Note that this can be somewhat mitigated using innodb_old_blocks_time, but that is… polluting the buffer pool.  Enter Xtrabackup… As a quick refresher, Xtrabackup works by copying the dirty tablespace files while streaming the redo-logs to…

Post: Is your MySQL buffer pool warm? Make it sweat!

…for replication. The buffer pool and adaptive …log-stdin –dispatcher-plugin thread-pool –thread-pool-threads-count 100 –session-init-query \”set innodb_fake_changes=1\” > /var/log/playback.loglog file for debugging purposes. Streaming logs from stdin Percona Playback now supports the –query-log

Post: Benchmarking Percona Server TokuDB vs InnoDB

innodb_data_file_path = ibdata1:100M:autoextend innodb_flush_method = O_DIRECT innodb_log_buffer_size = 256M innodb_flush_log_at_trx_commit = 1 innodb_buffer_pool_size = 36G innodb_log_file_size = 4G innodb_log_files_in_group = 2 innodb_log_block…

Post: Virident vCache vs. FlashCache: Part 2

innodb options innodb_file_format = barracuda innodb_buffer_pool_size = 4G innodb_file_per_table = true innodb_data_file_path = ibdata1:100M innodb_flush_method = O_DIRECT innodb_log_buffer_size = 128M innodb_flush_log_at_trx_commit = 1 innodb_log_file

Post: MySQL and Percona Server in LinkBench benchmark

…=3306 innodb_buffer_pool_size = 30G innodb_flush_method = O_DIRECT innodb_log_file_size = 2000M innodb_log_files_in_group = 2 innodb_flush_log_at_trx_commit = 1 innodb_log_buffer_size=128M innodb_max_dirty_pages_pct=80 innodb_file_format=barracuda innodb_file

Post: Percona XtraBackup 2.0.7 for MySQL available for download

…-style buffer pool dump files). Percona XtraBackup has implemented support for the InnoDB Buffer Pool Preloading introduced in MySQL 5.6. Starting with MySQL 5.6 buffer pool… fail when preparing the MySQL 5.6 backup if the log files were bigger than 4G on the source server. Bug fixed…

Post: Percona XtraBackup 2.1.0 'release candidate' for MySQL available for download

buffer pool dump files). Percona XtraBackup has implemented support for the InnoDB Buffer Pool Preloading introduced in MySQL 5.6. Starting with MySQL 5.6 buffer poolbuffer pool dump can be loaded by the server either automatically on startup or on demand. Time interval between checks done by log

Post: More on MySQL transaction descriptors optimization

innodb_data_file_path=ibdata1:100M:autoextend innodb_flush_log_at_trx_commit = 2 innodb_flush_method = O_DIRECT innodb_log_buffer_size = 16M innodb_buffer_pool_size = 52G innodb_log_file_size = 2000M innodb_log_files_in_group = 2 innodb_file_per…

Post: Choosing innodb_buffer_pool_size

… other needs for Innodb Buffer Pool. This of course assumes your database is large so you need large buffer pool, if not – setting buffer pool a bit… logs, or relay logs, Innodb Transactional Logs also like to be cached otherwise OS will need to do reads to serve writes to these log files