…these figures. Queries/sec: 265 Traffic: 1Mb/sec Connections:259 ‘Aborted_clients‘, ’267108′ ‘Aborted_connects‘, ’25997′ ‘Binlog_cache_disk_use’, ’145′ ‘Binlog_…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…
Comment: Apache PHP MySQL and Runaway Scripts
May 21, 2008 By 20 Comments
… fact it is quite close to MySQL case – if client is gone SELECT * FROM tbl; will be aborted virtually instantly while if temporary… STOP. It should be possible to check if connection is alive from the server. connection_aborted() could in theory do that but it does not do it – which is good thing to keep in mind. MySQL SLEEP…
Post: Announcing Percona XtraDB Cluster 5.5.28-23.7
November 15, 2012 By 9 Comments
…client) addresses in the cluster component. Multiple addresses can now be specified in the gcomm:// URLwhen defining the address to connect…every use case. SQL statements aborted due to multi-master conflict … regular MySQL replication slave configured, could cause intermittent failure to start MySQL …
Comment: MySQL Connection Timeouts
January 24, 2013 By 4 Comments
HI, I am seriously facing connection abort very frequently in mysql server which starts increasing as I restart mysql service. Pl look into ini… Thanks!!! version: MySQL Server 5.0 INI setting : [client] port=3306 [mysql] default-character-set=latin1 [mysqld] port=3306 log-bin=mysql-bin server…
Post: How to use tcpdump on very busy hosts
April 18, 2011 By 17 Comments
… dramatically. Imagine a situation where a single connection sends two queries and gets two responses, … from a small and representative subset of clients tcpdump a modulo of incoming ports (including port… ]; then echo “$self: lock file $LOCKFILE already exists, aborting” exit 1 fi # set trap to be …
Post: Announcing Percona Server for MySQL version 5.5.29-30.0
February 26, 2013 By Leave a Comment
…performance even with the increased number of client connections. New user statements have been introduced … line option innodb_changed_pages_limit. MySQL option handling would then shadow the …tracking initialization would fail. The server would abort on startup. Bug fixed #1083596 (Laurynas Biveinis…
Post: PHP Large result sets and summary tables.
July 6, 2007 By 8 Comments
… be quite high. Sharing connection no more works If you use buffered query you can use same connection to run other queries… errors. Connection can timeout If you do not fetch data for long enough MySQL Server may think client is dead and close connection. This… problems with table locks and other issues plus if script aborts it may be hard to restart. So it may be…
