Comment: Why MySQL could be slow with large tables ?
…cache_type=1 max_connections=1500 interactive_timeout=25 wait_timeout=10 connect_timeout=5 thread_cache_size=60 key_buffer=750M join_buffer=10M max_heap_table_…default-collation=utf8_unicode_ci...
View ArticleComment: What to tune in MySQL Server after installation
… my tables are MyIsam. Following is out of mytop MySQL on localhost (5.0.22-standard-log) up 12+23:09:57… = 16 query_cache_size = 512M max_connections = 300 max_user_connections = 300...
View ArticlePost: Apache PHP MySQL and Runaway Scripts
…long, well after user stopped waiting for the page to render…MySQL Connection and other resources. I had discussion today who was thinking Apache would kill the script after...
View ArticleComment: MySQL Server Memory Usage
…_insert_threads’, ’0′ ‘Delayed_writes’, ’0′ ‘Flush_commands’, ‘5‘ ‘Handler_commit’, ’19092941′ ‘Handler_delete’, ’0′ ‘Handler_discover’,…mysql/log log-slow-queries=/var/log/mysql/slow-queries.log...
View ArticlePost: New SpecJAppServer results at MySQL and Sun.
… MySQL Settings are probably what is the most interesting: MySQL 5….transaction-isolation = READ-COMMITTED max_allowed_packet = 1M max_connections=300 max_connect_errors=100 table…wait_timeout = 300...
View ArticleComment: Too many connections? No problem!
… develop in PHP with MYSQL, these are MYSQL values: datadir=/data/mysql socket=/data/mysql/mysql.sock max_connections = 600 wait_timeout = 60 interactive_timeout=1800 skip-name…= 1...
View ArticleComment: Database problems in MySQL/PHP Applications
…seen a situation where mysql reports max connections reached and freezes, with a bunch of processes waiting to finish. Also, mysql will not shut … max_sort_length=2048 long-query-time=5...
View ArticlePost: Configuring MySQL For High Number of Connections per Second
…connection and ideas for improvement, see this post by Domas]), With MySQL 5.5 default back_log of 50 and 2000 connections…connections waiting on connection instead of failing quickly and potentially...
View ArticleComment: MySQL Connection Timeouts
…=”C:/Program Files/MySQL/MySQL Server 5.0/” datadir=”D:/work/MySQL Datafiles/” default-…_CREATE_USER,NO_ENGINE_SUBSTITUTION” max_connections=10000 query_cache_size=128M …MySQL...
View ArticleComment: New Forum Categories: Help Wanted, For Hire
…sys/5.5.8/share/mysql/charsets […max_relay_log_size=100M #read-only # limits max_connections=1000 #old-passwords #lower_case_table_names=1 general_log = ON max…wait_timeout=60 innodb_log_buffer_size =...
View ArticlePost: Virident vCache vs. FlashCache: Part 2
… benchmark tool used was sysbench 0.5 and the version of MySQL used was Percona Server 5.5.30-rel30.1-465. Each test… wait_timeout = 120 max_connections = 5000 max_prepared_stmt_count=500000...
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MySQL Error: Too many connections
We have always received quite few questions here at Percona Support on how to avoid the dreaded “Too many connections” error, as well as what is the recommended value for max_connections. So, in this...
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ScaleArc: Benchmarking with sysbench
ScaleArc recently hired Percona to perform various tests on its database traffic management product. This post is the outcome of the benchmarks carried out by Uday Sawant (ScaleArc) and myself. You can...
View ArticleNew SpecJAppServer results at MySQL and Sun.
As you likely have seen Sun has posted the new SpecJAppServer Results More information from Tom Daly can be found here These results are quite interesting for me as I worked on some of the previous...
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Virident vCache vs. FlashCache: Part 2
This is the second part in a two-part series comparing Virident’s vCache to FlashCache. The first part was focused on usability and feature comparison; in this post, we’ll look at some sysbench test...
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MySQL Error: Too many connections
We have always received quite few questions here at Percona Support on how to avoid the dreaded “Too many connections” error, as well as what is the recommended value for max_connections. So, in this...
View ArticleClik here to view.
ScaleArc: Benchmarking with sysbench
ScaleArc recently hired Percona to perform various tests on its database traffic management product. This post is the outcome of the benchmarks carried out by Uday Sawant (ScaleArc) and myself. You can...
View ArticleClik here to view.
Avoiding MySQL ALTER table downtime
MySQL table alterations can interrupt production traffic causing bad customer experience or in worst cases, loss of revenue. Not all DBAs, developers, syadmins know MySQL well enough to avoid this...
View ArticleNew SpecJAppServer results at MySQL and Sun.
As you likely have seen Sun has posted the new SpecJAppServer Results More information from Tom Daly can be found here These results are quite interesting for me as I worked on some of the previous...
View ArticleiiBench configuration
A tip of the hat to Mark Callaghan, who suggested I post our my.cnf settings for iiBench.Instead of fiddling around with the configuration file, we adjusted everything on the command line. Here’s the...
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