Hi List,
In a 20m interval in our max load I have:
OS WAIT ARRAY INFO: reservation count 637, signal count 625
Mutex spin waits 0, rounds 19457, OS waits 428
RW-shared spins 238, OS waits 119; RW-excl spins 13, OS waits 8
(The values are the difference between the start and end of this 20m
inter
Hi,
We're chaning it to INT(9). Apparently someone remembered to change the type
of data in this field from an alphanumeric value to an INT(9).
I'm going to change this asap.
Thanks
BR
AJ
On Mon, Sep 6, 2010 at 5:17 AM, mos wrote:
> At 04:44 AM 9/3/2010, Alexandre Vieira wrote:
>
>> Hi Johnn
At 04:44 AM 9/3/2010, Alexandre Vieira wrote:
Hi Johnny,
mysql> EXPLAIN SELECT * FROM clientinfo WHERE userid='911930694';
++-++---+---+-+-+---+--+---+
| id | select_type | table | type | possible_keys | key | key_
On 9/3/2010 3:15 PM, Johnny Withers wrote:
It seems that when your index is PRIMARY on InnoDB tables, it's magic and is
part of the data thereby it is not included in the index_length field.
I have never noticed this. I don't think adding a new index will make a
difference.
You could try moving
It seems that when your index is PRIMARY on InnoDB tables, it's magic and is
part of the data thereby it is not included in the index_length field.
I have never noticed this. I don't think adding a new index will make a
difference.
You could try moving your log files to a different disk array tha
Hi,
When creating a table in MySQL with a PK it automatically creates an INDEX,
correct?
The Index_Length: 0 is rather strange..I've created a new INDEX on top of my
PK column on my test system and Index_Length shows a big value different
from 0. Do you think this might have any impact?
mysql> s
I think your MySQL instance is disk bound.
If you look at your iostats, md2, 12 and 22 have a ~10ms wait time before a
request can be processed. iostat is also reporting those disks are 75%+
utilized which means they are doing about all they can do.
Anyway you can add more disks? Add faster disks
Hi,
The DB is working on /var, which is md2 / md12 / md22.
extended device statistics
device r/sw/s kr/s kw/s wait actv svc_t %w %b
md2 0.1 80.00.4 471.4 0.0 1.0 12.2 0 94
md10 0.05.70.0 78.8 0.0 0.1 19.7 0 9
md1
Very confusing...
Why is index_length zero ?
On top of that, there's only 500K rows in the table with a data size of
41MB. Maybe InnoDB is flushing to disk too often?
What's the output of iostat -dxk 60 ? (run for a minute+ to get 2 output
girds)
--
*Johnny With
Hi,
mysql> SHOW TABLE STATUS LIKE 'clientinfo';
+++-++++-+-+--+---++-+-++---+--++-
What does
SHOW TABLE STATUS LIKE 'table_name'
Say about this table?
-JW
On Fri, Sep 3, 2010 at 8:59 AM, Alexandre Vieira wrote:
> Hi,
>
> I've done some tests with INT(8) vs the VARCHAR(23) on the userid PK and it
> makes a little difference but not enough for the application to run in real
>
Hi,
I've done some tests with INT(8) vs the VARCHAR(23) on the userid PK and it
makes a little difference but not enough for the application to run in real
time processing.
It's a Sun Fire V240 2x 1.5ghz UltraSparc IIIi with 2GB of RAM.
MySQL is eating 179MB of RAM and 5,4% of CPU.
PID USERNA
Ok, so I'm stumped?
What kind of hardware is behind this thing?
-JW
On Fri, Sep 3, 2010 at 4:44 AM, Alexandre Vieira wrote:
> Hi Johnny,
>
> mysql> EXPLAIN SELECT * FROM clientinfo WHERE userid='911930694';
>
> ++-++---+---+-+-+--
On 02/09/2010 6:05 p, Alexandre Vieira wrote:
Hi Jangita,
I'm 15779 innodb_buffer_pool_pages_free from a total of 22400. That's
246MB of 350MB free.
| Innodb_buffer_pool_pages_data | 6020 |
| Innodb_buffer_pool_pages_dirty| 1837 |
| Innodb_buffer_pool_pages_flushed | 673837
Hi Johnny,
mysql> EXPLAIN SELECT * FROM clientinfo WHERE userid='911930694';
++-++---+---+-+-+---+--+---+
| id | select_type | table | type | possible_keys | key | key_len
| ref | rows | Extra |
++-
; delete queries?
>
> DELETE FROM clientinfo WHERE units='155618918';
>
> -Original Message-
> From: Alexandre Vieira [mailto:nul...@gmail.com]
> Sent: Thursday, September 02, 2010 8:46 AM
> To: John Daisley; joh...@pixelated.net
> Cc: mysql@lists.mysql.com
elated.net
Cc: mysql@lists.mysql.com
Subject: Performance problems on MySQL
John, Johnny,
Thanks for the prompt answer.
mysql> SHOW CREATE TAB
Hi Jangita,
I'm 15779 innodb_buffer_pool_pages_free from a total of 22400. That's 246MB
of 350MB free.
| Innodb_buffer_pool_pages_data | 6020 |
| Innodb_buffer_pool_pages_dirty| 1837 |
| Innodb_buffer_pool_pages_flushed | 673837 |
| Innodb_buffer_pool_pages_free | 157
On 02/09/2010 4:46 p, Alexandre Vieira wrote:
John, Johnny,
Thanks for the prompt answer.
...
We also run some other applications in the server, but nothing that consumes
all the CPU/Memory. The machine has almost 1GB of free memory and 50% of
idle CPU time at any time.
TIA
BR
Alex
Increa
John, Johnny,
Thanks for the prompt answer.
mysql> SHOW CREATE TABLE clientinfo;
++--
What is the hardware spec? Anything else running on the box?
Why are you replicating but not making use of the slave?
Can you post the output of SHOW CREATE TABLE?
Regards
John
On 2 September 2010 12:50, Alexandre Vieira wrote:
> Hi list,
>
> I'm having some performance problems on my 5.0.45-
Can you show us the table structure and sample queries?
On Thursday, September 2, 2010, Alexandre Vieira wrote:
> Hi list,
>
> I'm having some performance problems on my 5.0.45-log DB running on Solaris
> 8 (V240).
>
> We only have one table and two apps selecting, updating, inserting and
> delet
Hi list,
I'm having some performance problems on my 5.0.45-log DB running on Solaris
8 (V240).
We only have one table and two apps selecting, updating, inserting and
deleting massively and randomly from this table.
The table is very simple. All SELECTs,INSERTs,UPDATEs and DELETEs have only
one c
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