Hi Rick
Thank you for replying.
Please see my answers to your questions.
On Tue, Mar 27, 2012 at 7:58 PM, Rick James <rjames@stripped> wrote:
> Do you have 12GB of RAM?
total used free shared buffers cached
Mem: 12038 11959 78 0 139 11234
-/+ buffers/cache: 586 11451
Swap: 2047 0 2047
> Is this a 64-bit mysqld?
Linux hostname 2.6.32-5-amd64 #1 SMP Mon Jan 16 16:22:28 UTC 2012
x86_64 GNU/Linux
> Let's see
> SHOW VARIABLES LIKE '%buffer%';
+-------------------------+---------+
| Variable_name | Value |
+-------------------------+---------+
| bulk_insert_buffer_size | 8388608 |
| innodb_buffer_pool_size | 8388608 |
| innodb_log_buffer_size | 1048576 |
| join_buffer_size | 131072 |
| key_buffer_size | 8384512 |
| myisam_sort_buffer_size | 8388608 |
| net_buffer_length | 16384 |
| preload_buffer_size | 32768 |
| read_buffer_size | 131072 |
| read_rnd_buffer_size | 262144 |
| sort_buffer_size | 2097144 |
| sql_buffer_result | OFF |
+-------------------------+---------+
> SHOW GLOBAL STATUS LIKE 'Max%';
+----------------------+-------+
| Variable_name | Value |
+----------------------+-------+
| Max_used_connections | 3 |
+----------------------+-------+
> SHOW GLOBAL STATUS LIKE 'Up%';
+---------------------------+-------+
| Variable_name | Value |
+---------------------------+-------+
| Uptime | 18492 |
| Uptime_since_flush_status | 18492 |
+---------------------------+-------+
> What is Apache's MaxClients?
MaxClients 1000
Thank you again.
Brent
>
>
> On 3/27/12 6:25 AM, Brent Clark wrote:
>>
>> Good day KarthiK.P.R
>>
>> Other than the replication settings in '/etc/mysql/conf.d/replication.cnf'
>> and our /etc/mysql/conf.d/custom.cnf
>>
>> xyz-web02:/data# cat /etc/mysql/conf.d/custom.cnf
>> [mysqld]
>> innodb_file_per_table
>> bind-address = 0.0.0.0
>> datadir = /data
>> binlog_format=mixed
>> key_buffer_size=8384512
>> max_connections=41
>>
>> The original /etc/mysql/my.cnf is untouched.
>>
>> The only other service we have running is DRBD (active / active) and
>> apache, nothing is hitting apache as this is the standby node.
>> And there is no load, or anything consuming resources.
>>
>> Thanks
>> Brent
>>
>>
>> On 27/03/2012 14:04, P.R.Karthik wrote:
>>>
>>> HI Brent,
>>>
>>> Can you please paste your configuration file settings (my.cnf) ? It will
>>> help to identify where things went wrong.
>>>
>>> Is there any other memory consuming application running on the server
>>> beyond mysql ?
>>>
>>> Regards,
>>> KarthiK.P.R
>>>
>>>
>>>
>>> On Tue, Mar 27, 2012 at 4:17 PM, Brent
>>>
> Clark<brentgclarklist@stripped<mailto:brentgclarklist@stripped>>
> wrote:
>>>
>>> Hey Guys
>>>
>>> Yesterday I sent an email, about '1 client is using or hasn't
> closed
>>> the table properly', but the problem is actually bigger than I realised.
>>>
>>> We run Mysql replication, and on the second node, Mysql is
> crashing
>>> with 'mysqld got signal 6' every so often.
>>>
>>> Other than the drives, we have replaced the hardware, and still
> the
>>> problem persists.
>>>
>>> Googling, I thought it was a memory exhaustion issue, so I
> started
>>> playing with the following variables and values.
>>>
>>> key_buffer_size=8384512
>>> max_connections=41
>>>
>>> But it still crashes
>>>
>>> Mar 27 12:36:53 xyz-web02 mysqld: key_buffer_size=8384512
>>> Mar 27 12:36:53 xyz-web02 mysqld: read_buffer_size=131072
>>> Mar 27 12:36:53 xyz-web02 mysqld: max_used_connections=3
>>> Mar 27 12:36:53 xyz-web02 mysqld: max_threads=41
>>> Mar 27 12:36:53 xyz-web02 mysqld: thread_count=1
>>> Mar 27 12:36:53 xyz-web02 mysqld: connection_count=1
>>> Mar 27 12:36:53 xyz-web02 mysqld: It is possible that mysqld
> could
>>> use up to
>>> Mar 27 12:36:53 xyz-web02 mysqld: key_buffer_size +
> (read_buffer_size
>>> + sort_buffer_size)*max_threads = 97828 K bytes of memory
>>>
>>> xyz-web02:# free -m
>>> total
> used free shared buffers
>>> cached
>>> Mem: 12038
> 11966 71 0
> 117
>>> 11378
>>> -/+ buffers/cache: 469
> 11568
>>> Swap: 2047
> 0 2047
>>>
>>> We running Debian Squeeze 64bit.
>>>
>>> I have attached the full crash message.
>>>
>>> If anyone can help, I would be *most* grateful (If you are in
> South
>>> Africa, I will buy you a meal, let alone a beer :)
>>>
>>> Kindest Regards
>>> Brent Clark
>>>
>>>
>>> --
>>> MySQL General Mailing List
>>> For list archives: http://lists.mysql.com/mysql
>>> To unsubscribe: http://lists.mysql.com/mysql
>>>
>>>
>>
>
> --
> Rick James - MySQL Geek
>
>
>
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