… running “innochecksum” and starting the server and trying: > use database; > desc bad_table; > > ERROR 2006 (HY000): MySQL server has gone away > No connection. Trying to reconnect… > Connection id: 3 > Current database: database > ERROR 2006 (HY000): MySQL server has gone away > No connection…
Comment: SystemTap - DTrace for Linux ?
August 31, 2011 By 17 Comments
… same problems. 1. The client session will be disconnected (MySQL server has gone away) after the SystemTap script is started or terminated. test@localhost… sec) test@localhost [(none)]>select now(); ERROR 2006 (HY000): MySQL server has gone away No connection. Trying to reconnect… Connection id: 7 Current database…
Post: How to track down the source of Aborted_connects
August 23, 2008 By 19 Comments
Yesterday I helped someone who was seeing a lot of “server has gone away” error messages on his website. While investigating this problem, I… but really weren’t. The biggest measurable sign was [percona@server ~]$ mysqladmin ext | grep Abort | Aborted_clients | 14835 | | Aborted_connects | 15598… did was look for packet loss between the database server and the web server; the network appeared to be working fine. With…
Comment: Percona XtraDB Cluster reference architecture with HaProxy
December 18, 2012 By 63 Comments
…: If you are running into the ‘MySQL server has gone away‘ problem, you should change the “timeout server” and “timeout client” values in the haproxy… cilent 3601s … etc backend pxc-back timeout server 3601s … etc backend pxc-onenode-back timeout server 3601s … etc — Again, just make sure…
Comment: Percona XtraDB Cluster reference architecture with HaProxy
November 28, 2012 By 63 Comments
…. A large bulk of queries (reads and writes) causes ‘MySQL server has gone away‘, but really mysqld process is alive. Error log does not…, so problem with HAProxy. Debug in the same as Mike has: 00000000:pxc-referencenode-front.accept(0006)=0009 from [10.0… is the latest – 5.5-28 Is here anyone who has already experienced in this and have a solution? Thanks in…
Comment: Percona XtraDB Cluster reference architecture with HaProxy
November 13, 2012 By 63 Comments
… proc 5 session 233461088 caused an error: MySQL server has gone away just after the session has closed. Not all pt-log-player-threads close…
Comment: Percona XtraDB Cluster reference architecture with HaProxy
January 28, 2013 By 63 Comments
… for being late on that one. For haproxy and mysql server has gone away: this is usually timeout/maxconn mismatch on either haproxy or…
Comment: COUNT(*) vs COUNT(col)
April 25, 2007 By 45 Comments
…) mysql> select count(*) from wp_comments; ERROR 2006 (HY000): MySQL server has gone away No connection. Trying to reconnect… Connection id: 2 Current database…
Post: Troubleshooting MySQL Memory Usage
March 21, 2012 By 5 Comments
… these tables going away if you close connection. In Percona Server you can do …not the total any more as Innodb has moved allocating memory from operation system …gone when connection is closed, other correspond to global memory allocation and will result in increased memory allocation until server…
Post: Return of the Query Cache, win a Percona Live ticket
August 26, 2011 By 4 Comments
…s Friday again, and time for another TGIF give-away of a Percona Live London ticket! But first, what’… MySQL query cache? You may know that it still has the same fundamental architecture that it’s always had,… a query-cache single choke-point in the server. Now that’s gone. As of MySQL 5.5, the query …
