… 3306 and port ${port} > /root/tcpdumps/`date +%s`-tcpdump & mysql -e ‘show innodb status\Gshow full processlist’ > /root/tcpdumps/`date +%s`-innodbstatus pid… commit between iterations. And watch your server to find idle-in-transaction connections that are just sitting there doing nothing, and kill…
Post: Estimating Replication Capacity
July 20, 2010 By 4 Comments
… query: mysql> select * from information_schema.user_statistics where user=”#mysql_system#” \G *************************** 1. row *************************** USER: #mysql_system# TOTAL_CONNECTIONS: 1 CONCURRENT_CONNECTIONS: 0 CONNECTED_TIME… idle. Of course running processlist very aggressively can be an overhead especially if it is busy system with a lot of connections mysql> show…
Post: Air traffic queries in InfiniDB: early alpha
November 2, 2009 By 19 Comments
…_vtable_mode). mysql> show warnings; +——-+——+————————————————————+ | Level | Code | Message | +——-+——+————————————————————+ |…idle, but query stuck. I killed query, restarted mysqld but could not connect…
Post: Investigating MySQL Replication Latency in Percona XtraDB Cluster
March 3, 2013 By 13 Comments
…the end of the post) which connects to one node in the cluster…do not setup clusters to be idle right ? So lets to another test…significant load. sysbench –test=oltp –mysql-user=root –mysql-password=”" –oltp-table-size=1000000 … happens. The script does not show any data propagation delays but it…
Comment: MySQL Server Memory Usage
September 1, 2006 By 21 Comments
…mysql/mysql.pid datadir=/db/disk2/mysql/data log-bin=/var/log/mysql/log log-slow-queries=/var/log/mysql/slow-queries.log max_connections…
Post: Using LoadAvg for Performance Optimization
December 4, 2006 By 5 Comments
… is zero which corresponds to completely idle system, and there is no maximum 
… batch job on the server with MySQL, Load Average is likely to be … workload scales linearly with number of connections and CPUs (ie there are no row… would start to worry whatever LoadAvg shows. P.S I acknowledge some of …
Post: How Web Services world affect LAMP Stack
May 22, 2006 By 1 Comment
…are also might be treated with idle priority – batch processing often can … might get slower themselves or network connectivity to them might slow things … on Disk – in files or MySQL tables. There are multiple solutions available…often better to show a bit stale data rather than show no data at…
Post: Updated msl (microslow) patch, installation walk-through!
April 20, 2008 By 17 Comments
…mysql-5.0.51a/ mysql-5.0.51a/bdb/ mysql-5.0.51a/bdb/Makefile.in mysql-5.0.51a/bdb/btree/ mysql….cc patching file sql/sql_show.cc patching file sql/structs….the hardware, you will be sitting idle and watching tons of text … application uses some kind of connection pooling. Rate limiting is disabled for…
Comment: Using MyISAM in production
June 20, 2006 By 36 Comments
… in size doing nothing resulting in large number of db connections Once MySQL unfreezes, all of threads complete and everything is fine… there is one mysql thread taking up all CPU 25% (as we are running hyper-threading) Otherwise, system is idle, low load and no IO We captured show processlist and don’t see any thing…
Comment: MySQL random freezes could be the query cache
March 29, 2009 By 23 Comments
…is what we get when we try to connect to the server via the command line … OS-dependent bug Here is what top shows, the mysqld process is at the bottom … nice, 0.0% system, 0.0% interrupt, 100% idle Mem: 234M Active, 4999M Inact, 403M Wired, … 0 0:00 0.00% devd 20895 mysql 1500 44 0 409M 250M ucond 1…
