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2512 ¹ø ±ÛÀÇ ´äÀå±Û: Re: mysql status ÇÁ·Î±×·¥ »ç¿ëÁß¿¡ Áú¹®µå¸®°Ú½À´Ï´Ù.
±Û¾´ÀÌ: »êÀÌ [ȨÆäÀÌÁö] ±Û¾´³¯: 2006³â 07¿ù 18ÀÏ 22:53:52 È­(Àú³á) Á¶È¸: 2462
[±è±ÙÅÂ]´ÔÀÌ ³²±â½Å ±Û:

>ÀÌÁú¹®À» ¿©±â¿¡ µå·Áµµ µÇ´ÂÁö¸ð¸£°ÚÁö¸¸ mysql status °³¹ßÀÚ´ÔÀ̽Å
>°Í°°¾Æ¼­ ½Ç·ÊÁö¸¸ ¹®Àǵ帳´Ï´Ù.
>ÇØ´çÇÁ·Î±×·¥ µ¹¸®¸é ¾Æ·¡¿Í °°Àº °á°ú°¡ ³ª¿À°íÀÖ½À´Ï´Ù.
>
>¿©±â¼­ key_buffer_sizeºÎºÐÀÌ¿ä..ÀÌ°É
 4±â°¡±îÁö ´Ã·Áµµ ´õ ´Ã¸®¶ó´Â
>
>¸»ÀÌ ³ª¿É´Ï´Ù.ÃÊ´ç Äõ¸® ¿äû¼ö°¡ 20ȸ¿¡¼­ 100ȸÁ¤µµ ³ª¿À´Âµ¥..

Àý´ëÀûÀÎ MAX °ª ÁöÁ¤ÀÌ ¾ø±â ¶§¹®¿¡ °è»ê»óÀÇ ¾î¿ ¼ö ¾ø´Â ¹ö±×(?)ÀÔ´Ï´Ù. ¤Ð¤Ð
»¡°£»öÀÌ ¸¹ÀÌ ³ª¿Â´Ù°í Çؼ­ Àý´ëÀûÀ¸·Î Àß ¸øµÈ °ÍÀº ¾Æ´Õ´Ï´Ù.

ÀÏ´Ü À§ÀÇ key buffer ¸¦ ³Ê¹« Å©°Ô Àâ¾Æ ³õ¾Ò³×¿ä.

ÀÌ °ªÀ» ³Ê¹« Å©°Ô Àâ´Ù º¸´Ï ´Ù¸¥ thread ¿¡¼­ »ç¿ëÇÒ ¸Þ¸ð¸®°¡ »ó´ëÀûÀ¸·Î À۾Ƽ­
¾Æ¸¶µµ disk ¸¦ »ç¿ëÇÏ´Â µí ÇÕ´Ï´Ù.

¹Ý´ë·Î join_buffer, read_rnd_buffer ¸¦ ³Ê¹« ÀÛ°Ô Àâ¾Æ ³õ¾Ò³×¿ä.

ÇöÀç mysql Àü¿ë ¼­¹ö·Î »ç¿ëÇÏ°í ÀÖ°í Àß ¸¸ Æ©´×Çϸé 1G Á¤µµ¿¡¼­
ÃæºÐÈ÷ ¸Å²ô·´°Ô(?) µ¹¾Æ°¥ µí ÇÕ´Ï´Ù.

ÀÏ´Ü ¾Æ·¡ Á¦°¡ ¼ø½Ä°£(?)¿¡ Æ©´×ÇÑ °ªÀ» Àû¿ëÇØ º¸¼¼¿ä.

Àû¿ëÈÄ ÇÏ·ç Á¤µµ Áö³ª°í mysql_status ·Î È®ÀÎÇغ¸¼¼¿ä.
(°á°ú°¡ ±Ã±ÝÇÏ³×¿ä ¤¾¤¾)

-------------------------------------
set-variable	 = key_buffer=384M	; // Æ©´× ÇÊ¿ä(¸Þ¸ð¸® Áõ¼³½Ã 512M·Î ¼³Á¤)
set-variable	 = table_cache=512	; // 512~1024 Á¤µµ(Å×ÀÌºí °³¼ö¿Í °ü·ÃµÊ)
set-variable	 = thread_cache=8	; // 8~16Á¤µµ¸é ÃæºÐ
set-variable	 = join_buffer=2M	; // Æ©´× ÇÊ¿ä
set-variable	 = myisam_sort_buffer_size=64M
set-variable	 = read_buffer=2M	; // 2M Á¤µµ¸é ÃæºÐ
set-variable	 = read_rnd_buffer=2M	; // 2M Á¤µµ¸é ÃæºÐ
set-variable	 = sort_buffer=2M	; // 2M Á¤µµ¸é ÃæºÐ
set-variable	 = wait_timeout=10	; // 10ÃÊ ÀÌÇÏ·Î ¹«ÀǹÌÇÔ
set-variable	 = max_connections=200	; // 300 ÀÌ»ó½Ã ¸Þ¸ð¸® 2G ÀÌ»ó
set-variable	 = open_files_limit=0
set-variable	 = tmp_table_size=64M	; // 64M Á¤µµ
-------------------------------------

Âü°í·Î À§ÀÇ ¼³Á¤Àº ¸Þ¸ð¸®°¡ 1G~2G ¶Ç´Â ±× ÀÌ»óÀÌ ¿ä±¸µË´Ï´Ù.

ÇÑ°¡Áö ´õ Âü°í·Î, ¸Þ¸ð¸®°¡ ºÎÁ·Çϰųª À߸ø Æ©´×Çϸé mysql ·Î±×¿¡

key_buffer_size + (read_buffer + sort_buffer) * max_connections = available of
memory

ģöÇÏ°Ô ÀÌ·± ºñ½ÁÇÑ ¸Þ½ÃÁö°¡ º¸ÀÔ´Ï´Ù. 

À§ÀÇ °è»ê´ë·Î¶ó¸é max_connections ÀÌ 160 Á¤µµ ³ª¿À´Âµ¥ 200 ±îÁö
¼³Á¤Çصµ µË´Ï´Ù.


>
>Äõ¸®´Â ´Ü¼ø select,insert,update¹®ÀÌ°í
 Äõ¸®´Â ÃÖÀûÈ­ µÇ¾îÀÖ½À´Ï´Ù.
>
>key_buffer_size¸¦ 4±â°¡ ÀÌ»óÀ¸·Î ´Ã·Á¾ßµÉÁö..¾Æ´Ï¸é ´Ù¸¥ ¹®Á¦°¡
>
>Àִ°ÍÀÎÁö ±Ã±ÝÇϱ¸¿ä.¼­¹ö»ç¾çÀº
 Âü°í·Î amd ¿ÉÅ×·Ð 2800 µà¾óÀÔ´Ï´Ù.
>
>·¥Àº 1±â°¡ÀÔ´Ï´Ù..
>
>Çϵå¿þ¾î ¼º´ÉÀ» ´õ ³ô¿©¾ß µÇ´Â°ÍÀÎÁö..½ÇÁ¦·Î mysql_connect ½ÇÆÐÀ²ÀÌ
>
>»ó´çÈ÷ ¸¹½À´Ï´Ù.¼Õ½ÇÀ» ÁÙÀÏ·Á¸é ·¥À» ¿Ã·Á¾ß µÉ±î¿ä...
>
>ÀÌ°ÅÀú°Í ¿É¼ÇÀ» ¹Ù²ãºÃÁö¸¸..±×´ë·Î³×¿ä..

>
>´äº¯±â´Ù¸®°Ú½À´Ï´Ù.°¨»çÇÕ´Ï´Ù.

>
>
>-----------------------°á°ú---------------------------------------

>
>TOTAL_STATUS 19.27 very busy (1ÃÊ´ç Æò±Õ Äõ¸® ¿äû¼ö) 
>CRITICAL_LIFE_TIME 2ÃÊ Ä¿³Ø¼Ç´ç Æò±ÕÀûÀÎ(Ãß¼¼) ÀÓ°è life time(CUR) 
>CRITICAL_LIFE_TIME_MAX 100ÃÊ Ä¿³Ø¼Ç´ç Æò±ÕÀûÀÎ(ÃÖ´ë) ÀÓ°è life time(EXP)

>All_databases 13 or more µ¥ÀÌÅͺ£À̽º ¼ö 
>Aborted_clients 0 ¿¬°á Ãë¼Ò Clients ¼ö, refer 28,800(8½Ã°£ 0ÃÊ)[wait_timeout] and
28,800(8½Ã°£ 0ÃÊ)[interactive_timeout]
 
>Aborted_connects 3 ¿¬°á ½ÇÆмö, refer 3(3ÃÊ)[connect_timeout]
 
>Aborted_clients_percent 0.00% ¿¬°á Ãë¼ÒÀ², Á¤»ó[Âü°í] 
>Aborted_connects_percent 0.17% ¿¬°á ½ÇÆÐÀ², Á¤»ó 
>Bytes_received 270 KB ¼ö½Å·®(ÃÑ) 
>Bytes_sent 1 MB Àü¼Û·®(ÃÑ) 
>Bytes_per_rs 5.22 ¹Þ°í(1) º¸³»´Â(x) ºñÀ², 1:x 
>Bytes_sent_per_sec 4 KB Àü¼Û·®(ÃÊ´ç) 
>Bytes_sent_per_min 245 KB Àü¼Û·®(ºÐ´ç) 
>Bytes_sent_per_hour 14 MB Àü¼Û·®(½Ã°£´ç) 
>Bytes_sent_per_day 345 MB Àü¼Û·®(ÇÏ·çÆò±Õ), ¿¹»ó¼öÄ¡ 
>Com_delete 0.00% DELETE Äõ¸® »ç¿ëÀ²(Àüü DB Åë°è) 
>Com_insert 5.73% INSERT Äõ¸® »ç¿ëÀ²(Àüü DB Åë°è) 
>Com_select 27.29% SELECT Äõ¸® »ç¿ëÀ²(Àüü DB Åë°è) 
>Com_update 6.19% UPDATE Äõ¸® »ç¿ëÀ²(Àüü DB Åë°è) 
>Com_replace 0.00% REPLACE Äõ¸® »ç¿ëÀ²(Àüü DB Åë°è) 
>Com_lock_tables 0.00% LOCK TABLES Äõ¸® »ç¿ëÀ²(Àüü DB Åë°è) 
>Connections 1,740 ÃÑ connections ¼ö 
>Connections_per_sec 5.06 ÃÊ´ç connections ¼ö 
>Created_tmp_tables 0 ¸Þ¸ð¸®¿¡ »ý¼ºµÈ Àӽà Å×ÀÌºí ¼ö 
>Created_tmp_disk_tables 0 DISK¿¡ »ý¼ºµÈ Àӽà Å×ÀÌºí ¼ö, 33,554,432(32
MB)[tmp_table_size]º¸´Ù
 ¸¹Àº ¸Þ¸ð¸®¸¦ ¿ä±¸ÇÏ´Â SQL ±¸¹®À» ½ÇÇà½Ã ´©°èµÊ 
>Create_tmp_disk_tables_per 0.00% DISK¿¡ »ý¼ºµÈ Àӽà Å×ÀÌºí »ç¿ë ºñÀ² 
>Intervals_of_connection 0.198 Ä¿³Ø¼Ç ÁÖ±â(ÃÊ) 
>Intervals_of_question 0.052 Äõ¸® ÁÖ±â(ÃÊ) 
>Key_reads 570 DISK¿¡¼­ Key ÀÐÀº ¼ö 
>Key_read_requests 9,334 ij½Ã¿¡¼­ Key Àб⠿äû¼ö 
>Key_writes 270 DISK¿¡ Key¸¦ ¾´ ¼ö 
>Key_write_requests 270 ij½Ã¿¡ Key ¾²±â ¿äû¼ö 
>Key_reads_per_request 0.06% DISK¿¡¼­ Key¸¦ Àд ºñÀ²,
>DISK¿¡¼­ Key¸¦ Àд ¿äûÀÌ ¸¹½À´Ï´Ù(±âÁØ 0.01%). 1,073,741,824(1,024
MB)(key_buffer_size)°ªÀ»
 ¿Ã¸®¼¼¿ä. 
>Key_writes_per_request 1.00% DISK¿¡ Key¸¦ ¾²´Â ºñÀ², º¸Åë 1¿¡ °¡±î¿ö¾ß Á¤»ó

>Max_used_connections 10 µ¿½Ã¿¡ ¿¬°áµÈ ÃÖ´ë°ª, Á¤»ó 
>Open_tables 8 ÇöÀç ¿­·ÁÀÖ´Â Tables ¼ö 
>Opened_tables 14 ¿­·È´ø Tables ¼ö, refer 512[table_cache], 0.01/Connection

>Questions 6,628 ÇöÀç±îÁö Äõ¸® ¿äû¼ö 
>Questions_per_connect 3.81 Ä¿³Ø¼Ç´ç Æò±Õ Äõ¸® ¿äû¼ö 
>Select_full_join 0 Key ¾øÀÌ FULL-JOIN Ƚ¼ö 
>Slow_queries 0 10(10ÃÊ)(long_query_time)ÃÊ
 º¸´Ù Å« Äõ¸® ¿äû¼ö 
>Table_locks_waited 0ÃÊ Lock wait Ãѽð£ 
>Threads_cached 5 ij½ÃµÈ ¾²·¹µå¼ö, 17[thread_cache_size]º¸´Ù
 Ç×»ó ÀÛÀ½ 
>Threads_connected 6 ÇöÀç ¿­·ÁÀÖ´Â Ä¿³Ø¼Ç ¼ö 
>Threads_created 11 ÇöÀç±îÁö handle Ä¿³Ø¼Ç¿¡ »ý¼ºµÈ ¾²·¹µå ¼ö 
>Threads_running 1 ÇöÀç ±¸µ¿ÁßÀÎ ¾²·¹µå ¼ö(not sleeping) 
>Threads_created_per 0.01% Ä¿³Ø¼Ç´ç »ý¼ºµÈ Æò±Õ ¾²·¹µå ¼ö(±âÁØ 0.01%), Á¤»ó[Âü°í]

>Uptime 5ºÐ 44ÃÊ ÃÖ±Ù MySQL ¼­¹ö ±¸µ¿ ½Ã°£ 
> 
>
>MYSQL SERVER VARIABLES (connected by TCP/IP), ´©ÀûµÈ Åë°èÀÚ·á°¡ ³Ê¹« Àû½À´Ï´Ù. Ç׸ñ
VARIABLES commnets, [***] Ç¥½Ã´Â ¼º´É Çâ»ó°ú °ü·ÃµÊ 
>back_log 50 man 2 listen, net.ipv4.tcp_max_syn_backlog 
>connect_timeout 3(3ÃÊ) bad handshake timeout(ÃÊ), Á¤»ó 
>join_buffer_size 131,072(128 KB) [***] FULL-JOIN¿¡ »ç¿ëµÇ´Â ¸Þ¸ð¸® 
>key_buffer_size 1,073,741,824(1,024 MB) [***] INDEX key buffer¿¡ »ç¿ëµÇ´Â ¸Þ¸ð¸®,
refer [Key_xxx],
>DISK¿¡¼­ Key¸¦ Àд ¿äûÀÌ ¸¹½À´Ï´Ù(±âÁØ 0.01%). 1,073,741,824(1,024
MB)(key_buffer_size)°ªÀ»
 ¿Ã¸®¼¼¿ä. 
>log OFF ·Î±× ±â·Ï ¿©ºÎ 
>log_update OFF UPDATE ·Î±× ±â·Ï ¿©ºÎ 
>log_bin OFF binary ·Î±× ±â·Ï ¿©ºÎ 
>long_query_time 10(10ÃÊ) refer 0[Slow_queries] 
>lower_case_table_names 0 Å×ÀÌºí ´ë¼Ò¹®ÀÚ ±¸º°À¯¹«(0 ±¸º°) 
>max_allowed_packet 104,856,576(100 MB) ÃÖ´ë Çã¿ëÇÒ ÆÐŶ 
>max_connections 1,000 [***] ÃÖ´ë µ¿½Ã Á¢¼Ó Ä¿³Ø¼Ç ¼ö, refer
10[Max_used_connections], Á¤»ó 
>max_delayed_threads 20 ÃÖ´ë delayed ¾²·¹µå ¼ö, INSERT DELAYED ±¸¹®°ú °ü·ÃµÊ

>max_join_size 18,446,744,073,709,557,000(17,179,869,136.0 GB) JOIN¿¡ »ç¿ëµÉ ÃÖ´ë
Å©±â(¸Þ¸ð¸® ¾Æ´Ô) 
>max_sort_length 1,024(1 KB) TEXT, BLOBÀÇ Á¤·Ä¿¡ »ç¿ëµÇ´Â ÃÖ´ë Å©±â 
>max_user_connections 1,000 ÃÖ´ë µ¿½Ã user ¼ö(0Àº Á¦ÇѾøÀ½) 
>myisam_max_extra_sort_file_size 268,435,456(256 MB) ºü¸¥ INDEX¸¦ »ý¼º½Ã »ç¿ëµÇ´Â
ÃÖ´ë Àӽà ÆÄÀÏ Å©±â 
>myisam_max_sort_file_size 9,223,372,036,854,779,000(8,589,934,568.0 GB) REPAIR,
ALTER, LOAD...µî INDEX¸¦ Àç»ý¼º½Ã »ç¿ëµÇ´Â Àӽà ÆÄÀÏ Å©±â 
>myisam_sort_buffer_size 67,108,864(64 MB) [***] REPAIR, INDEX, ALTER Á¤·Ä¿¡
»ç¿ëÇÏ´Â ¸Þ¸ð¸® 
>open_files_limit 5,010 ÆÄÀÏ open Á¦ÇÑ ¼ö(0Àº Á¦ÇѾøÀ½) 
>read_buffer_size 2,093,056(2 MB) [***] ¼øÂ÷ÀûÀÎ °Ë»ö¿¡ »ç¿ëµÇ´Â
¸Þ¸ð¸®(read_buffer_size)
 
>read_rnd_buffer_size 262,144(256 KB) [***] ORDER BY Á¤·Ä¿¡ »ç¿ëµÇ´Â ¸Þ¸ð¸®(to avoid
a disk seeks) 
>skip_external_locking ON ¿ÜºÎ lock À» »ç¿ëÇÑ´Ù¸é OFF·Î ¼³Á¤. 
>skip_networking OFF TCP/IP ¿¬°á ¿©ºÎ(ONÀº UNIX domain socket, OFF´Â TCP/IP ¿¬°á),
Á¤»ó 
>skip_show_database OFF SHOW DATABASES ±¸¹® »ç¿ë ¿©ºÎ(ONÀº ¿øõºÀ¼â, OFF´Â »ç¿ë°¡´É)

>sort_buffer_size 2,097,144(2 MB) [***] ORDER BY, GROUP BY Á¤·Ä¿¡ »ç¿ëµÇ´Â ¸Þ¸ð¸®

>table_cache 512 [***] Çѹø¿¡(all thread) ¿­ ¼ö ÀÖ´Â Å×ÀÌºí ¼ö, refer
14[Opened_tables] 
>thread_cache_size 17 [***] ¾²·¹µå ij½Ã Àç»ç¿ë ¼ö, refer 1,740[Connections],
11[Threads_created], °è»êµÈ ÃßÁ¤°ª(ÃÖ¼Ò:6, ±ÇÀå:13, ÃÖ´ë:20), Á¤»ó[Âü°í]

>tmp_table_size 33,554,432(32 MB) [***] º¹ÀâÇÑ GROUP BY Á¤·Ä¿¡ »ç¿ëµÇ´Â ¸Þ¸ð¸®(to
avoid a disk seeks), refer 0[Created_tmp_disk_tables] 
>interactive_timeout 28,800(8½Ã°£ 0ÃÊ) interactive -> re-active¿¡ ±â´Ù¸®´Â ½Ã°£(ÀÌÈÄ
closed), Á¤»ó[Âü°í] 
>wait_timeout 28,800(8½Ã°£ 0ÃÊ) none interactive -> re-active¿¡ ±â´Ù¸®´Â ½Ã°£(ÀÌÈÄ
closed), °è»êµÈ ÃßÁ¤°ª(Ãß¼¼:2ÃÊ, ÀÓ°è:74ÃÊ), Á¤»ó[Âü°í] 
>timezone KST ÇöÀç MySQL ¼­¹öÀÇ TIME-ZONE 
>version 4.0.26 ÇöÀç MySQL ¼­¹ö ¹öÀü 

========================================

 
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