Comments on: How to debug InnoDB lock waits http://www.xaprb.com/blog/2007/09/18/how-to-debug-innodb-lock-waits/ Stay curious! Thu, 09 Feb 2012 09:56:43 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Xaprb http://www.xaprb.com/blog/2007/09/18/how-to-debug-innodb-lock-waits/#comment-19077 Xaprb Thu, 20 Jan 2011 04:37:48 +0000 http://www.xaprb.com/blog/2007/09/18/how-to-debug-innodb-lock-waits/#comment-19077 There is now a set of tables in the INFORMATION_SCHEMA that gives much better capabilities for that. I'll put that onto my to-blog list. There is now a set of tables in the INFORMATION_SCHEMA that gives much better capabilities for that. I’ll put that onto my to-blog list.

]]> By: Boyd http://www.xaprb.com/blog/2007/09/18/how-to-debug-innodb-lock-waits/#comment-19076 Boyd Wed, 19 Jan 2011 22:52:39 +0000 http://www.xaprb.com/blog/2007/09/18/how-to-debug-innodb-lock-waits/#comment-19076 Baron: Thanks for a great article and great tool. I spread the love at every turn. Is there a follow up coming on how to track down the lock holder and tune/eliminate the issue from that side? Baron:

Thanks for a great article and great tool. I spread the love at every turn.

Is there a follow up coming on how to track down the lock holder and tune/eliminate the issue from that side?

]]> By: Xaprb http://www.xaprb.com/blog/2007/09/18/how-to-debug-innodb-lock-waits/#comment-19021 Xaprb Mon, 03 Jan 2011 15:45:32 +0000 http://www.xaprb.com/blog/2007/09/18/how-to-debug-innodb-lock-waits/#comment-19021 Marcel, please don't use a random blog post as a support forum. Use the innotop mailing list and bug tracker system. (You will find the solution to your problem already there.) Marcel, please don’t use a random blog post as a support forum. Use the innotop mailing list and bug tracker system. (You will find the solution to your problem already there.)

]]> By: Marcel http://www.xaprb.com/blog/2007/09/18/how-to-debug-innodb-lock-waits/#comment-19019 Marcel Mon, 03 Jan 2011 11:18:25 +0000 http://www.xaprb.com/blog/2007/09/18/how-to-debug-innodb-lock-waits/#comment-19019 Segfault [RO] Query List (? for help) localhost, 20:07.003, 183.58 QPS, 23/1/3 con/run/cac thds, 5.0.77-log When Load QPS Slow Se/In/Up/De% QCacheHit KCacheHit BpsIn BpsOut Total 0.00 183.58 53 74/ 1/13/ 8 0.00% 98.28% 20.31k 61.87k Cmd ID State User Host DB Time QuerySegmentation fault (v 1.8) Segfault

[RO] Query List (? for help) localhost, 20:07.003, 183.58 QPS, 23/1/3 con/run/cac thds, 5.0.77-log

When Load QPS Slow Se/In/Up/De% QCacheHit KCacheHit BpsIn BpsOut
Total 0.00 183.58 53 74/ 1/13/ 8 0.00% 98.28% 20.31k 61.87k

Cmd ID State User Host DB Time QuerySegmentation fault

(v 1.8)

]]> By: ixdide http://www.xaprb.com/blog/2007/09/18/how-to-debug-innodb-lock-waits/#comment-18937 ixdide Tue, 23 Nov 2010 15:37:56 +0000 http://www.xaprb.com/blog/2007/09/18/how-to-debug-innodb-lock-waits/#comment-18937 Great article. Thanks. Anyway worth to mention: check if the queries causing deadlocks have all where statement's column indexes on it. It will decrease the effect. It helped for me. Great article. Thanks.
Anyway worth to mention: check if the queries causing deadlocks have all where statement’s column indexes on it. It will decrease the effect. It helped for me.

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