Re: wait_timeout help
Linux Redhat ASEL 4.0 On 11/8/06, Visolve DB Team [EMAIL PROTECTED] wrote: Hi Actually I don't get any idle processes listed.. but have came across such mails.. On which platform you are running mysql? I guess this might be: If Windows, the server will drop the connection probably because of 'wait_timeout' expired. For others, the mysql gets reconnected with 'reconnect flag' set to 1 in the MySQL structure... Thanks ViSolve DB Team - Original Message - *From:* Sayed Hadi Rastgou Haghi [EMAIL PROTECTED] *To:* Visolve DB Team [EMAIL PROTECTED] *Cc:* mysql@lists.mysql.com *Sent:* Wednesday, November 08, 2006 11:51 AM *Subject:* Re: wait_timeout help Hi I set the wait_timeout in my.cnf. Sometimes it works well and there is no idle process 120 seconds time. But sometimes there are idle processes with 1900s time. What the reason can be? On 11/7/06, Visolve DB Team [EMAIL PROTECTED] wrote: Hi According to the VARIABLE wait_timeout [default: 28800 seconds] a running MySQL daemon clears up idle connections if their idle period wait_timeout.so the sleeping threads will be automatically cleared if the time exceeds 'wait_timeout' variable value. 'wait_timeout' variable : The number of seconds the server waits for activity on a non-interactive connection before closing it. This timeout applies only to TCP/IP connections, not to connections made via Unix socket files, named pipes, or shared memory. 'interactive_timeout' variable's value or wait_timeout variables values -depends on the type of client (as defined by the CLIENT_INTERACTIVE connect option to mysql_real_connect()) Thanks ViSolve DB Team. - Original Message - *From:* Sayed Hadi Rastgou Haghi [EMAIL PROTECTED] *To:* Visolve DB Team [EMAIL PROTECTED] *Cc:* mysql@lists.mysql.com *Sent:* Tuesday, November 07, 2006 4:12 PM *Subject:* Re: wait_timeout help Thanks again I have some questions that may help me explain my problem well. 1- What's this mean: mysql SHOW PROCESSLIS; +--+---+--++---+-++-+ | Id | User | Host |db | Command | Time | State | Info | +--+---+--++---+-+-++ |1 | usr | myhost:36336 | mydb | Sleep | 2587 | | NULL | | 11 | usr | myhost:36341 | mydb | Sleep | 2587 | | NULL | | 12 | usr | myhost:36348 | mydb | Sleep | 2587 | | NULL | | 3732| usr | myhost:43940 | mydb | Sleep | 2587 | | NULL | +--+---+--++---+-+-++ Are these processes idle? If yes why MySQL doesn't kill them? 2- If I set wait_timeout variable, will they be killed on that time? 3- If I set interactive_timeout, what will happen to queries that take time longer than interactive_timeout? On 11/7/06, Visolve DB Team [EMAIL PROTECTED] wrote: Hi Try command line option, like mysql set @@session.wait_timeout=15; mysql show variables; Thanks Visolve DB Team. - Original Message - From: Sayed Hadi Rastgou Haghi [EMAIL PROTECTED] To: Visolve DB Team [EMAIL PROTECTED] Cc: mysql@lists.mysql.com Sent: Tuesday, November 07, 2006 3:21 PM Subject: Re: wait_timeout help Thanks But this sets. GLOBAL wait_timeout variable. Cab be seen by SHOW GLOBAL VARIABLES not by SHOW VARIABLES; On 11/7/06, Visolve DB Team [EMAIL PROTECTED] wrote: Hi specify it in the .cnf file in the mysqld options: wait_timeout=x or specify it at the command line : set wait_timeout=x or start mysqld with --wait_timeout=x along with other options. Thanks ViSolve DB Team - Original Message - From: Sayed Hadi Rastgou Haghi [EMAIL PROTECTED] To: mysql@lists.mysql.com Sent: Tuesday, November 07, 2006 2:08 PM Subject: wait_timeout help Dear All, I want to set wait_timeout variable on mysqld startup. Is there any way to do that? -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1 http://www.spreadfirefox.com/?q=affiliatesid=0t=1 Get FireFox! /a -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1http://www.spreadfirefox.com/?q=affiliatesid=0t=1 Get FireFox! /a -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1 http://www.spreadfirefox.com/?q=affiliatesid=0t=1 Get FireFox! /a -- Sincerely, Hadi Rastgou A Google Account is the key
wait_timeout help
Dear All, I want to set wait_timeout variable on mysqld startup. Is there any way to do that? -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1; Get FireFox! /a
Re: wait_timeout help
Thanks But this sets. GLOBAL wait_timeout variable. Cab be seen by SHOW GLOBAL VARIABLES not by SHOW VARIABLES; On 11/7/06, Visolve DB Team [EMAIL PROTECTED] wrote: Hi specify it in the .cnf file in the mysqld options: wait_timeout=x or specify it at the command line : set wait_timeout=x or start mysqld with --wait_timeout=x along with other options. Thanks ViSolve DB Team - Original Message - From: Sayed Hadi Rastgou Haghi [EMAIL PROTECTED] To: mysql@lists.mysql.com Sent: Tuesday, November 07, 2006 2:08 PM Subject: wait_timeout help Dear All, I want to set wait_timeout variable on mysqld startup. Is there any way to do that? -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1; Get FireFox! /a -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1; Get FireFox! /a
Re: wait_timeout help
Thanks again I have some questions that may help me explain my problem well. 1- What's this mean: mysql SHOW PROCESSLIS; +--+---+--++---+-++-+ | Id | User | Host |db | Command | Time | State | Info | +--+---+--++---+-+-++ |1 | usr | myhost:36336 | mydb | Sleep | 2587 | | NULL | | 11 | usr | myhost:36341 | mydb | Sleep | 2587 | | NULL | | 12 | usr | myhost:36348 | mydb | Sleep | 2587 | | NULL | | 3732| usr | myhost:43940 | mydb | Sleep | 2587 | | NULL | +--+---+--++---+-+-++ Are these processes idle? If yes why MySQL doesn't kill them? 2- If I set wait_timeout variable, will they be killed on that time? 3- If I set interactive_timeout, what will happen to queries that take time longer than interactive_timeout? On 11/7/06, Visolve DB Team [EMAIL PROTECTED] wrote: Hi Try command line option, like mysql set @@session.wait_timeout=15; mysql show variables; Thanks Visolve DB Team. - Original Message - From: Sayed Hadi Rastgou Haghi [EMAIL PROTECTED] To: Visolve DB Team [EMAIL PROTECTED] Cc: mysql@lists.mysql.com Sent: Tuesday, November 07, 2006 3:21 PM Subject: Re: wait_timeout help Thanks But this sets. GLOBAL wait_timeout variable. Cab be seen by SHOW GLOBAL VARIABLES not by SHOW VARIABLES; On 11/7/06, Visolve DB Team [EMAIL PROTECTED] wrote: Hi specify it in the .cnf file in the mysqld options: wait_timeout=x or specify it at the command line : set wait_timeout=x or start mysqld with --wait_timeout=x along with other options. Thanks ViSolve DB Team - Original Message - From: Sayed Hadi Rastgou Haghi [EMAIL PROTECTED] To: mysql@lists.mysql.com Sent: Tuesday, November 07, 2006 2:08 PM Subject: wait_timeout help Dear All, I want to set wait_timeout variable on mysqld startup. Is there any way to do that? -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1 Get FireFox! /a -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1; Get FireFox! /a -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1; Get FireFox! /a
Re: wait_timeout help
Hi I set the wait_timeout in my.cnf. Sometimes it works well and there is no idle process 120 seconds time. But sometimes there are idle processes with 1900s time. What the reason can be? On 11/7/06, Visolve DB Team [EMAIL PROTECTED] wrote: Hi According to the VARIABLE wait_timeout [default: 28800 seconds] a running MySQL daemon clears up idle connections if their idle period wait_timeout.so the sleeping threads will be automatically cleared if the time exceeds 'wait_timeout' variable value. 'wait_timeout' variable : The number of seconds the server waits for activity on a non-interactive connection before closing it. This timeout applies only to TCP/IP connections, not to connections made via Unix socket files, named pipes, or shared memory. 'interactive_timeout' variable's value or wait_timeout variables values -depends on the type of client (as defined by the CLIENT_INTERACTIVE connect option to mysql_real_connect()) Thanks ViSolve DB Team. - Original Message - *From:* Sayed Hadi Rastgou Haghi [EMAIL PROTECTED] *To:* Visolve DB Team [EMAIL PROTECTED] *Cc:* mysql@lists.mysql.com *Sent:* Tuesday, November 07, 2006 4:12 PM *Subject:* Re: wait_timeout help Thanks again I have some questions that may help me explain my problem well. 1- What's this mean: mysql SHOW PROCESSLIS; +--+---+--++---+-++-+ | Id | User | Host |db | Command | Time | State | Info | +--+---+--++---+-+-++ |1 | usr | myhost:36336 | mydb | Sleep | 2587 | | NULL | | 11 | usr | myhost:36341 | mydb | Sleep | 2587 | | NULL | | 12 | usr | myhost:36348 | mydb | Sleep | 2587 | | NULL | | 3732| usr | myhost:43940 | mydb | Sleep | 2587 | | NULL | +--+---+--++---+-+-++ Are these processes idle? If yes why MySQL doesn't kill them? 2- If I set wait_timeout variable, will they be killed on that time? 3- If I set interactive_timeout, what will happen to queries that take time longer than interactive_timeout? On 11/7/06, Visolve DB Team [EMAIL PROTECTED] wrote: Hi Try command line option, like mysql set @@session.wait_timeout=15; mysql show variables; Thanks Visolve DB Team. - Original Message - From: Sayed Hadi Rastgou Haghi [EMAIL PROTECTED] To: Visolve DB Team [EMAIL PROTECTED] Cc: mysql@lists.mysql.com Sent: Tuesday, November 07, 2006 3:21 PM Subject: Re: wait_timeout help Thanks But this sets. GLOBAL wait_timeout variable. Cab be seen by SHOW GLOBAL VARIABLES not by SHOW VARIABLES; On 11/7/06, Visolve DB Team [EMAIL PROTECTED] wrote: Hi specify it in the .cnf file in the mysqld options: wait_timeout=x or specify it at the command line : set wait_timeout=x or start mysqld with --wait_timeout=x along with other options. Thanks ViSolve DB Team - Original Message - From: Sayed Hadi Rastgou Haghi [EMAIL PROTECTED] To: mysql@lists.mysql.com Sent: Tuesday, November 07, 2006 2:08 PM Subject: wait_timeout help Dear All, I want to set wait_timeout variable on mysqld startup. Is there any way to do that? -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1http://www.spreadfirefox.com/?q=affiliatesid=0t=1 Get FireFox! /a -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1http://www.spreadfirefox.com/?q=affiliatesid=0t=1 Get FireFox! /a -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1http://www.spreadfirefox.com/?q=affiliatesid=0t=1 Get FireFox! /a -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1; Get FireFox! /a
Automatically Log Splitting.
Dear all, I know that there is a MERGE engine in mysql. It's great. I want to know is there a way to make new log tables and new merge table based on some criteria. Let me explain more with an example. I have a log_2004_09_01 table and a MERGE table on it called log. I want to automatically make log_2004_10_01 table and update log table to use log_2004_10_01 too. Is it possible by mysql itself without scripting? else how can I tell mysql to keep incoming queries till the script does this? -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1; Get FireFox! /a
Best MySQL configuation
Dear All, What is the best configuration for a server with 2 XEON dual core CPU and 4GB Ram and 200GB RAID 5 hard? -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1; Get FireFox! /a
InnoDB Crash RECOVERY HELP (Urgent)
Dear all, our DB server crashed and when I try to start Mysql /etc/init.d/mysql/start I get these lins in my error log 060921 13:00:14 mysqld started 060921 13:00:14 InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd files... InnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer... 060921 13:00:14 InnoDB: Starting log scan based on checkpoint at InnoDB: log sequence number 3 3546172175. InnoDB: Error: tried to read 65536 bytes at offset 0 2173440. InnoDB: Was only able to read 54784. InnoDB: Fatal error: cannot read from file. OS error number 17. 060921 13:01:24InnoDB: Assertion failure in thread 3086943936 in file os0file.c line 2107 InnoDB: We intentionally generate a memory trap. InnoDB: Submit a detailed bug report to http://bugs.mysql.com. InnoDB: If you get repeated assertion failures or crashes, even InnoDB: immediately after the mysqld startup, there may be InnoDB: corruption in the InnoDB tablespace. Please refer to InnoDB: http://dev.mysql.com/doc/mysql/en/Forcing_recovery.html InnoDB: about forcing recovery. mysqld got signal 11; This could be because you hit a bug. It is also possible that this binary or one of the libraries it was linked against is corrupt, improperly built, or misconfigured. This error can also be caused by malfunctioning hardware. We will try our best to scrape up some info that will hopefully help diagnose the problem, but since we have already crashed, something is definitely wrong and this may fail. key_buffer_size=0 read_buffer_size=536866816 max_used_connections=0 max_connections=550 threads_connected=0 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_connections = 2094947 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. thd=(nil) Attempting backtrace. You can use the following information to find out where mysqld died. If you see no messages after this, something went terribly wrong... Cannot determine thread, fp=0xbffe3d4c, backtrace may not be correct. Stack range sanity check OK, backtrace follows: 0x814cbfb 0x8d28b8 0x1 0x8355aed 0x835c659 0x835ce73 0x829ba01 0x81d3af3 0x81c5cb2 0x815028a 0x773e33 0x80e0c71 New value of fp=(nil) failed sanity check, terminating stack trace! Please read http://dev.mysql.com/doc/mysql/en/Using_stack_trace.html and follow instructions on how to resolve the stack trace. Resolved stack trace is much more helpful in diagnosing the problem, so please do resolve it The manual page at http://www.mysql.com/doc/en/Crashing.html contains information that should help you find out what is causing the crash. 060921 13:01:24 mysqld ended when I add skip-innodb in my.cnf, it startsup but my innodb tables could not be accessed. How can I start MySQL server again? -- Sincerely, Hadi Rastgou A Google Account is the key that unlocks the world of Google. a href= http://www.spreadfirefox.com/?q=affiliatesamp;id=0amp;t=1; Get Firefox! /a
