Comments on: Performance comparison of Repair by Sorting or by Keycache http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/ Everything In Life Is Random! (Personal and Work) Sat, 19 May 2012 00:06:06 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: Мой конфиг my.cnf для быстрого восстановления таблиц « IT remarks http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/comment-page-1/#comment-13307 Мой конфиг my.cnf для быстрого восстановления таблиц « IT remarks Wed, 11 Apr 2012 08:14:21 +0000 http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/#comment-13307 [...] По этому поводу, есть хороше сранение тут: Performance comparison of Repair by Sorting or by Keycache [...] [...] По этому поводу, есть хороше сранение тут: Performance comparison of Repair by Sorting or by Keycache [...]

]]> By: Tuning MySQL : Case Study OBVOC/OBHUNTER http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/comment-page-1/#comment-13229 Tuning MySQL : Case Study OBVOC/OBHUNTER Sat, 17 Sep 2011 05:44:36 +0000 http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/#comment-13229 [...] พังเดี้ยงได้ อาจะเพิ่มเติมได้ที่ ลิงค์นี้ระหว่าง config มั่วๆถ้าไม่ set connection timeout [...] [...] พังเดี้ยงได้ อาจะเพิ่มเติมได้ที่ ลิงค์นี้ระหว่าง config มั่วๆถ้าไม่ set connection timeout [...]

]]> By: Bing http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/comment-page-1/#comment-10369 Bing Fri, 16 Jul 2010 15:25:44 +0000 http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/#comment-10369 I figured it out with help from others http://forums.mysql.com/read.php?21,375635,375939#msg-375939 It is because myisam_sort_buffer_size was not set properly. Apparently, there is one more thing you need to take into consideration when Repairing a MyISAM. Thanks, Bing I figured it out with help from others http://forums.mysql.com/read.php?21,375635,375939#msg-375939

It is because myisam_sort_buffer_size was not set properly. Apparently, there is one more thing you need to take into consideration when Repairing a MyISAM.

Thanks,

Bing

]]> By: Venu Anuganti http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/comment-page-1/#comment-10368 Venu Anuganti Fri, 16 Jul 2010 07:19:25 +0000 http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/#comment-10368 Bing Unless you give an example; it is hard. Contact me at http://venublog.com/contact/ Bing

Unless you give an example; it is hard. Contact me at http://venublog.com/contact/

]]> By: Bing http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/comment-page-1/#comment-10352 Bing Fri, 09 Jul 2010 22:26:26 +0000 http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/#comment-10352 Venu This is good piece of work. However, even after checking everything you mentioned, I still get "repair by keycache" occasionally. When I say "occasionally", I mean that it works most of the time ("repair by sorting"), yet every once in a while, it still falls into "repair by keycache" without reason. When that does happen, the myisam_max_sort_file_size shows plenty of size ("9223372036854775807"), and the /tmp directory is not full. What else am I missing? Thanks, Bing Venu

This is good piece of work. However, even after checking everything you mentioned, I still get “repair by keycache” occasionally. When I say “occasionally”, I mean that it works most of the time (“repair by sorting”), yet every once in a while, it still falls into “repair by keycache” without reason. When that does happen, the myisam_max_sort_file_size shows plenty of size (“9223372036854775807″), and the /tmp directory is not full.

What else am I missing?

Thanks,

Bing

]]> By: Venu Anuganti http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/comment-page-1/#comment-9399 Venu Anuganti Tue, 05 Jan 2010 20:25:07 +0000 http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/#comment-9399 Not really as you are not looking for the total index size here.. also; I never use Information_Schema.tables/columns as its very expensive especially when you have more tables in the server. Not really as you are not looking for the total index size here.. also; I never use Information_Schema.tables/columns as its very expensive especially when you have more tables in the server.

]]> By: Mohammad Lahlouh http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/comment-page-1/#comment-9398 Mohammad Lahlouh Tue, 05 Jan 2010 08:22:32 +0000 http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/#comment-9398 8) === > 8 ) 8) === > 8 )

]]> By: Mohammad Lahlouh http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/comment-page-1/#comment-9397 Mohammad Lahlouh Tue, 05 Jan 2010 08:21:27 +0000 http://venublog.com/2010/01/04/performance-comparison-of-repair-by-sorting-or-by-keycache/#comment-9397 good article in this formula (2000000 * (255 * 3) + 8) you want to know index size, is it right? can we take the size from information_schema.index_length i think its easier when the table have multi index? good article

in this formula (2000000 * (255 * 3) + 8) you want to know index size, is it right?
can we take the size from information_schema.index_length i think its easier when the table have multi index?

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