oky..you guys are much more advanced then me!
I am glad i am asking for your help...here is show processlist of mysql below.
One thing to point out - the locks are happening to the 9gig table
like i thought.
I would like to know what i can do - tuning wise to mysql to help this
locking issue.
It seems when i have the server up for an extended period of time like
3-6 hours - this locking starts to affect other sites/dbs.
I am using a cms and it has a database backend...i have multiple sites
running the same code but the site that has all the traffic is the one
with the biggest table - 9 gig. Can anyone suggest tuning parameters
for this locking issue ??
thanks
ysql> show processlist ;
mysql> show processlist ;
+------+----------+-----------+----------+---------+------+--------------+------------------------------------------------------------------------------------------------------+
| Id | User | Host | db | Command | Time | State
| Info
|
+------+----------+-----------+----------+---------+------+--------------+------------------------------------------------------------------------------------------------------+
| 103 | root | localhost | NULL | Query | 0 | NULL
| show processlist
|
| 2507 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2508 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl from w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemid=484&lan |
| 2509 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2521 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_jfbconnect&lang |
| 2522 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_jfbconnect&lang |
| 2523 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2529 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2535 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2536 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2537 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl from w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemid=484&lan |
| 2538 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2556 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&airportid |
| 2557 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2558 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&city=Casc |
| 2567 | p_092211 | localhost | p_092211 | Query | 11 | Sending
data | select oldurl, newurl, id, dateadd from w6h8a_sh404sef_urls
where newurl <> "" AND soundex(oldurl) |
| 2568 | p_092211 | localhost | p_092211 | Query | 69 | Sending
data | select oldurl, newurl, id, dateadd from w6h8a_sh404sef_urls
where newurl <> "" AND soundex(oldurl) |
| 2569 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl from w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemid=484&lan |
| 2572 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2576 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| select oldurl, newurl, id, dateadd from w6h8a_sh404sef_urls where
newurl <> "" AND soundex(oldurl) |
| 2577 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| select oldurl, newurl, id, dateadd from w6h8a_sh404sef_urls where
newurl <> "" AND soundex(oldurl) |
| 2578 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| select oldurl, newurl, id, dateadd from w6h8a_sh404sef_urls where
newurl <> "" AND soundex(oldurl) |
| 2579 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2580 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2581 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2582 | p_092211 | localhost | p_092211 | Query | 69 | Locked
| update `w6h8a_sh404sef_urls` set cpt=(cpt+1) where `oldurl` =
'Camargo-Illinois-Holiday_Light_Tour-H |
| 2583 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| select oldurl, newurl, id, dateadd from w6h8a_sh404sef_urls where
newurl <> "" AND ( oldurl like ' |
| 2584 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&city=Milt |
| 2585 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| select oldurl, newurl, id, dateadd from w6h8a_sh404sef_urls where
newurl <> "" AND ( oldurl like ' |
| 2586 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| select oldurl, newurl, id, dateadd from w6h8a_sh404sef_urls where
newurl <> "" AND soundex(oldurl) |
| 2587 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| select oldurl, newurl, id, dateadd from w6h8a_sh404sef_urls where
newurl <> "" AND soundex(oldurl) |
| 2588 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2591 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2592 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2593 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2594 | p_092211 | localhost | p_092211 | Query | 4 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2595 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&city=Milt |
| 2596 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2598 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&city=Boyn |
| 2599 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_community&Itemi |
| 2600 | p_092211 | localhost | p_092211 | Query | 6 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_jfbconnect&lang |
| 2601 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&city=Oxfo |
| 2602 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&city=Milt |
| 2603 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&city=Shar |
| 2604 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT `oldurl`, `newurl`, `dateadd` FROM w6h8a_sh404sef_urls
WHERE `oldurl`='O52/index.php/' ORDER |
| 2605 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT `oldurl`, `newurl`, `dateadd` FROM w6h8a_sh404sef_urls
WHERE `oldurl`='MLS/index.php/' ORDER |
| 2606 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT * FROM w6h8a_sh404sef_urls WHERE `oldurl`='MLD/index.php'
|
| 2607 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&city=Milt |
| 2608 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl from w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&airportid=5892&lan |
| 2609 | p_092211 | localhost | p_092211 | Query | 6 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&city=Shar |
| 2610 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&city=Fish |
| 2611 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT oldurl from w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&airportid=7705&lan |
| 2612 | p_092211 | localhost | p_092211 | Query | 5 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&city=Fish |
| 2613 | p_092211 | localhost | p_092211 | Query | 6 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&city=Milt |
| 2614 | p_092211 | localhost | p_092211 | Query | 6 | Locked
| SELECT oldurl, dateadd FROM w6h8a_sh404sef_urls WHERE newurl =
'index.php?option=com_limos&city=Armo |
| 2615 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT `oldurl`, `newurl`, `dateadd` FROM w6h8a_sh404sef_urls
WHERE `oldurl`='MLF/index.php/' ORDER |
| 2616 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| SELECT * FROM w6h8a_sh404sef_urls WHERE `oldurl`='MLF/index.php'
|
| 2617 | p_092211 | localhost | p_092211 | Query | 7 | Locked
| INSERT INTO `w6h8a_sh404sef_urls` (`cpt`, `rank`, `oldurl`,
`newurl`, `dateadd`) VALUES (1, 0, '2O1/ |
+------+----------+-----------+----------+---------+------+--------------+------------------------------------------------------------------------------------------------------+
58 rows in set (0.00 sec)
On Thu, Oct 6, 2011 at 1:17 PM, Andrew Moore <[email protected]> wrote:
> Precisely my point Singer. There's a workload here that isn't friendly with
> table level locking and I would hazard a guess that there's some fights over
> IO due to load vs resources. The count is going to be queued as you
> describe.
>
> A
>
> On Thu, Oct 6, 2011 at 6:09 PM, Singer X.J. Wang <[email protected]>
> wrote:
>>
>> Okay, lets hold on for a minute here and go back. We're side tracking too
>> much.
>>
>> Lets state the facts here:
>>
>> 1) MyISAM stores the row count internally, a 'select count(*) from table'
>> DOES NOT DO A FULL TABLE SCAN
>> 2) hell, a software RAID6 of 2 MFM drives could do a seek to the metadata
>> faster then 4 minutes..
>>
>> But lets remember that if another thread is writing or updating the MyISAM
>> table, the count(*) must wait..
>>
>> So I recommend this:
>>
>> run a select count(*) from the table that you see is long.. if it is
>> taking a long time open another session, do a show processlist
>>
>> I bet you that you will see another process updating or deleting or
>> inserting into the MyISAM table.
>>
>>
>> On Thu, Oct 6, 2011 at 12:35, Joey L <[email protected]> wrote:
>>>
>>> i did google search - myisam is faster...i am not really doing any
>>> transaction stuff.
>>> thanks
>>>
>>> On Thu, Oct 6, 2011 at 12:16 PM, Andrew Moore <[email protected]>
>>> wrote:
>>> > Sorry, hit send by accident there! *face palm*
>>> > Just had a quick scan of the report. You've got 2 1GB disks in software
>>> > raid
>>> > - RAID1 or RAID5? I can also see you're creating a lot of temporary
>>> > files on
>>> > disk. I think in your previous email that your biggest table's index(s)
>>> > were
>>> > larger then the keybuffer size. I would suspect that you're disk bound
>>> > with
>>> > limited IO performance through 2 disks and effectively 1 if in a
>>> > mirrored
>>> > configuration. The stats show that you're configured for MyISAM and
>>> > that
>>> > you're tables are taking reads and writes (read heavy though), MyISAM
>>> > doesn't like high concurrency mixed workloads such as yours, it will
>>> > cause
>>> > locking and maybe thats why your count has such a delay. Such activity
>>> > may
>>> > be better suited to InnoDB engine (you must configure and tune for
>>> > this, not
>>> > JUST change the engine).
>>> > HTH
>>> > Andy
>>> >
>>> >
>>> > On Thu, Oct 6, 2011 at 5:05 PM, Andrew Moore <[email protected]>
>>> > wrote:
>>> >>
>>> >> Joey, does your 'large' table get
>>> >>
>>> >> On Thu, Oct 6, 2011 at 3:22 PM, Joey L <[email protected]> wrote:
>>> >>>
>>> >>> here is mysqlreport ---
>>> >>> ------------------------------------------------
>>> >>> root@rider:~/tmp# ./mysqlreport --user root --password barakobomb
>>> >>> Use of uninitialized value $is in multiplication (*) at ./mysqlreport
>>> >>> line 829.
>>> >>> Use of uninitialized value in formline at ./mysqlreport line 1227.
>>> >>> MySQL 5.1.49-3-log uptime 0 0:25:5 Thu Oct 6 10:20:49
>>> >>> 2011
>>> >>>
>>> >>> __ Key
>>> >>> _________________________________________________________________
>>> >>> Buffer used 727.43M of 2.00G %Used: 35.52
>>> >>> Current 963.24M %Usage: 47.03
>>> >>> Write hit 29.41%
>>> >>> Read hit 99.79%
>>> >>>
>>> >>> __ Questions
>>> >>> ___________________________________________________________
>>> >>> Total 50.20k 33.4/s
>>> >>> QC Hits 32.56k 21.6/s %Total: 64.87
>>> >>> DMS 12.28k 8.2/s 24.46
>>> >>> Com_ 3.21k 2.1/s 6.39
>>> >>> COM_QUIT 2.89k 1.9/s 5.76
>>> >>> -Unknown 745 0.5/s 1.48
>>> >>> Slow 10 s 68 0.0/s 0.14 %DMS: 0.55 Log:
>>> >>> OFF
>>> >>> DMS 12.28k 8.2/s 24.46
>>> >>> SELECT 11.09k 7.4/s 22.10 90.36
>>> >>> UPDATE 539 0.4/s 1.07 4.39
>>> >>> INSERT 384 0.3/s 0.77 3.13
>>> >>> DELETE 260 0.2/s 0.52 2.12
>>> >>> REPLACE 0 0/s 0.00 0.00
>>> >>> Com_ 3.21k 2.1/s 6.39
>>> >>> set_option 1.10k 0.7/s 2.20
>>> >>> show_fields 1.03k 0.7/s 2.05
>>> >>> admin_comma 707 0.5/s 1.41
>>> >>>
>>> >>> __ SELECT and Sort
>>> >>> _____________________________________________________
>>> >>> Scan 1.65k 1.1/s %SELECT: 14.87
>>> >>> Range 493 0.3/s 4.44
>>> >>> Full join 310 0.2/s 2.79
>>> >>> Range check 339 0.2/s 3.06
>>> >>> Full rng join 0 0/s 0.00
>>> >>> Sort scan 887 0.6/s
>>> >>> Sort range 628 0.4/s
>>> >>> Sort mrg pass 0 0/s
>>> >>>
>>> >>> __ Query Cache
>>> >>> _________________________________________________________
>>> >>> Memory usage 5.96M of 16.00M %Used: 37.25
>>> >>> Block Fragmnt 5.17%
>>> >>> Hits 32.56k 21.6/s
>>> >>> Inserts 5.66k 3.8/s
>>> >>> Insrt:Prune 5.66k:1 3.8/s
>>> >>> Hit:Insert 5.76:1
>>> >>>
>>> >>> __ Table Locks
>>> >>> _________________________________________________________
>>> >>> Waited 513 0.3/s %Total: 3.62
>>> >>> Immediate 13.65k 9.1/s
>>> >>>
>>> >>> __ Tables
>>> >>> ______________________________________________________________
>>> >>> Open 1024 of 1024 %Cache: 100.00
>>> >>> Opened 14.96k 9.9/s
>>> >>>
>>> >>> __ Connections
>>> >>> _________________________________________________________
>>> >>> Max used 70 of 100 %Max: 70.00
>>> >>> Total 2.89k 1.9/s
>>> >>>
>>> >>> __ Created Temp
>>> >>> ________________________________________________________
>>> >>> Disk table 1.34k 0.9/s
>>> >>> Table 2.35k 1.6/s Size: 32.0M
>>> >>> File 5 0.0/s
>>> >>>
>>> >>> __ Threads
>>> >>> _____________________________________________________________
>>> >>> Running 32 of 37
>>> >>> Cached 0 of 8 %Hit: 93.26
>>> >>> Created 195 0.1/s
>>> >>> Slow 0 0/s
>>> >>>
>>> >>> __ Aborted
>>> >>> _____________________________________________________________
>>> >>> Clients 0 0/s
>>> >>> Connects 2 0.0/s
>>> >>>
>>> >>> __ Bytes
>>> >>> _______________________________________________________________
>>> >>> Sent 100.33M 66.7k/s
>>> >>> Received 12.48M 8.3k/s
>>> >>>
>>> >>> __ InnoDB Buffer Pool
>>> >>> __________________________________________________
>>> >>> Usage 1.67M of 8.00M %Used: 20.90
>>> >>> Read hit 99.70%
>>> >>> Pages
>>> >>> Free 405 %Total: 79.10
>>> >>> Data 107 20.90 %Drty: 0.00
>>> >>> Misc 0 0.00
>>> >>> Latched 0.00
>>> >>> Reads 26.18k 17.4/s
>>> >>> From file 78 0.1/s 0.30
>>> >>> Ahead Rnd 2 0.0/s
>>> >>> Ahead Sql 1 0.0/s
>>> >>> Writes 3 0.0/s
>>> >>> Flushes 3 0.0/s
>>> >>> Wait Free 0 0/s
>>> >>>
>>> >>> __ InnoDB Lock
>>> >>> _________________________________________________________
>>> >>> Waits 0 0/s
>>> >>> Current 0
>>> >>> Time acquiring
>>> >>> Total 0 ms
>>> >>> Average 0 ms
>>> >>> Max 0 ms
>>> >>>
>>> >>> __ InnoDB Data, Pages, Rows
>>> >>> ____________________________________________
>>> >>> Data
>>> >>> Reads 96 0.1/s
>>> >>> Writes 12 0.0/s
>>> >>> fsync 11 0.0/s
>>> >>> Pending
>>> >>> Reads 0
>>> >>> Writes 0
>>> >>> fsync 0
>>> >>>
>>> >>> Pages
>>> >>> Created 0 0/s
>>> >>> Read 107 0.1/s
>>> >>> Written 3 0.0/s
>>> >>>
>>> >>> Rows
>>> >>> Deleted 0 0/s
>>> >>> Inserted 0 0/s
>>> >>> Read 20.98k 13.9/s
>>> >>> Updated 0 0/s
>>> >>> root@rider:~/tmp#
>>> >>>
>>> >>> and the mysqltuner.pl report :
>>> >>> -------------------------------------------------------------
>>> >>>
>>> >>> root@rider:~/tmp# perl mysqltuner.pl
>>> >>>
>>> >>> >> MySQLTuner 1.2.0 - Major Hayden <[email protected]>
>>> >>> >> Bug reports, feature requests, and downloads at
>>> >>> http://mysqltuner.com/
>>> >>> >> Run with '--help' for additional options and output filtering
>>> >>> Please enter your MySQL administrative login: root
>>> >>> Please enter your MySQL administrative password:
>>> >>>
>>> >>> -------- General Statistics
>>> >>> --------------------------------------------------
>>> >>> [--] Skipped version check for MySQLTuner script
>>> >>> [OK] Currently running supported MySQL version 5.1.49-3-log
>>> >>> [OK] Operating on 64-bit architecture
>>> >>>
>>> >>> -------- Storage Engine Statistics
>>> >>> -------------------------------------------
>>> >>> [--] Status: +Archive -BDB -Federated +InnoDB -ISAM -NDBCluster
>>> >>> [--] Data in MyISAM tables: 7G (Tables: 2408)
>>> >>> [--] Data in InnoDB tables: 1M (Tables: 37)
>>> >>> [!!] Total fragmented tables: 49
>>> >>>
>>> >>> -------- Security Recommendations
>>> >>> -------------------------------------------
>>> >>> [OK] All database users have passwords assigned
>>> >>>
>>> >>> -------- Performance Metrics
>>> >>> -------------------------------------------------
>>> >>> [--] Up for: 26m 26s (54K q [34.593 qps], 2K conn, TX: 110M, RX: 13M)
>>> >>> [--] Reads / Writes: 90% / 10%
>>> >>> [--] Total buffers: 2.1G global + 2.6M per thread (100 max threads)
>>> >>> [OK] Maximum possible memory usage: 2.3G (19% of installed RAM)
>>> >>> [OK] Slow queries: 0% (69/54K)
>>> >>> [OK] Highest usage of available connections: 70% (70/100)
>>> >>> [OK] Key buffer size / total MyISAM indexes: 2.0G/9.2G
>>> >>> [OK] Key buffer hit rate: 99.8% (363M cached / 745K reads)
>>> >>> [OK] Query cache efficiency: 76.1% (36K cached / 47K selects)
>>> >>> [OK] Query cache prunes per day: 0
>>> >>> [OK] Sorts requiring temporary tables: 0% (0 temp sorts / 1K sorts)
>>> >>> [!!] Joins performed without indexes: 689
>>> >>> [!!] Temporary tables created on disk: 36% (1K on disk / 4K total)
>>> >>> [OK] Thread cache hit rate: 93% (198 created / 2K connections)
>>> >>> [!!] Table cache hit rate: 6% (1K open / 14K opened)
>>> >>> [!!] Open file limit used: 89% (1K/2K)
>>> >>> [OK] Table locks acquired immediately: 96% (14K immediate / 14K
>>> >>> locks)
>>> >>> [OK] InnoDB data size / buffer pool: 1.2M/8.0M
>>> >>>
>>> >>> -------- Recommendations
>>> >>> -----------------------------------------------------
>>> >>> General recommendations:
>>> >>> Run OPTIMIZE TABLE to defragment tables for better performance
>>> >>> MySQL started within last 24 hours - recommendations may be
>>> >>> inaccurate
>>> >>> Enable the slow query log to troubleshoot bad queries
>>> >>> Adjust your join queries to always utilize indexes
>>> >>> When making adjustments, make tmp_table_size/max_heap_table_size
>>> >>> equal
>>> >>> Reduce your SELECT DISTINCT queries without LIMIT clauses
>>> >>> Increase table_cache gradually to avoid file descriptor limits
>>> >>> Variables to adjust:
>>> >>> join_buffer_size (> 8.0K, or always use indexes with joins)
>>> >>> tmp_table_size (> 32M)
>>> >>> max_heap_table_size (> 32M)
>>> >>> table_cache (> 1024)
>>> >>> open_files_limit (> 2158)
>>> >>>
>>> >>> root@rider:~/tmp#
>>> >>>
>>> >>>
>>> >>>
>>> >>> On Thu, Oct 6, 2011 at 10:09 AM, Rik Wasmus <[email protected]> wrote:
>>> >>> >> thanks for the response - but do not believe queries are the issue
>>> >>> >> because - Like I said - i have other websites doing the same exact
>>> >>> >> queries as I am doing on the site with the 9gig table.
>>> >>> >
>>> >>> > Contrary to popular believe, size DOES matter... And having a table
>>> >>> > large
>>> >>> > enough so it doesn't fit in memory could require another approach
>>> >>> > entirely for
>>> >>> > query optimization.
>>> >>> >
>>> >>> > Another good start would be to examine the output of mysqlreport,
>>> >>> > it
>>> >>> > will tel
>>> >>> > you a lot.
>>> >>> > --
>>> >>> > Rik Wasmus
>>> >>> >
>>> >>> > --
>>> >>> > MySQL General Mailing List
>>> >>> > For list archives: http://lists.mysql.com/mysql
>>> >>> > To unsubscribe:
>>> >>> > http://lists.mysql.com/[email protected]
>>> >>> >
>>> >>> >
>>> >>>
>>> >>> --
>>> >>> MySQL General Mailing List
>>> >>> For list archives: http://lists.mysql.com/mysql
>>> >>> To unsubscribe:
>>> >>> http://lists.mysql.com/[email protected]
>>> >>>
>>> >>
>>> >
>>> >
>>>
>>> --
>>> MySQL General Mailing List
>>> For list archives: http://lists.mysql.com/mysql
>>> To unsubscribe: http://lists.mysql.com/[email protected]
>>>
>>
>> --
>> Pythian proud winner of Oracle North America Titan Award for Exadata
>> Solution... Read more & see us at OpenWorld bit.ly/pythianoow11
>>
>
>
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