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MYSQL Server Crashes frequently on Amazon EC2 - Magento Website

We have client Magento site running on ec2 large instance.

My Magento MySQL on EC2 crashes continuously, around every 12 hours. This happens on the live site. The site has more than 30000 products. The crashes started after we migrated from shared hosting to ec2. The continuous crashes are related to Innodb.

Database size is around 650 MB. We migrated the data by using mysqldump command and restored it in EC2.

Server environment : Php-fpm, Nginx , Mysqld , Varnish

Server Config:

Linux 64 bit

RAM 7GB

100 GB space

When MySQL crashes, the following is written to the log file /var/log/[url removed, login to view]

121219 02:54:18 mysqld_safe Number of processes running now: 0

121219 02:54:19 mysqld_safe mysqld restarted

121219 2:54:21 [Note] Plugin 'FEDERATED' is disabled.

121219 2:54:21 InnoDB: The InnoDB memory heap is disabled

121219 2:54:21 InnoDB: Mutexes and rw_locks use GCC atomic builtins

121219 2:54:21 InnoDB: Compressed tables use zlib 1.2.5

121219 2:54:21 InnoDB: Using Linux native AIO

121219 2:54:25 InnoDB: Initializing buffer pool, size = [url removed, login to view]

InnoDB: mmap(3296722944 bytes) failed; errno 12

121219 2:54:25 InnoDB: Completed initialization of buffer pool

121219 2:54:25 InnoDB: Fatal error: cannot allocate memory for the buffer pool

121219 2:54:25 [ERROR] Plugin 'InnoDB' init function returned error.

121219 2:54:25 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.

121219 2:54:25 [ERROR] Failed to initialize plugins.

121219 2:54:25 [ERROR] Aborting

121219 2:54:25 [Note] /usr/libexec/mysqld: Shutdown complete

121219 02:54:25 mysqld_safe mysqld from pid file /var/run/mysqld/[url removed, login to view] ended

When we check status before restart MySQL it shows the following output:

“mysqld dead but subsys locked.”

In these cases, the only thing we have to restart the server, after which MySQL can be restarted.

In these cases, the output looks like this following:

121219 04:19:32 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql

121219 4:19:32 [Note] Plugin 'FEDERATED' is disabled.

121219 4:19:32 InnoDB: The InnoDB memory heap is disabled

121219 4:19:32 InnoDB: Mutexes and rw_locks use GCC atomic builtins

121219 4:19:32 InnoDB: Compressed tables use zlib 1.2.5

121219 4:19:32 InnoDB: Using Linux native AIO

121219 4:19:32 InnoDB: Initializing buffer pool, size = [url removed, login to view]

121219 4:19:33 InnoDB: Completed initialization of buffer pool

121219 4:19:33 InnoDB: highest supported file format is Barracuda.

InnoDB: Log scan progressed past the checkpoint lsn 3185919093

121219 4:19:33 InnoDB: Database was not shut down normally!

InnoDB: Starting crash recovery.

InnoDB: Reading tablespace information from the .ibd files...

InnoDB: Restoring possible half-written data pages from the doublewrite

InnoDB: buffer...

InnoDB: Doing recovery: scanned up to log sequence number 3185974511

I have full file and [url removed, login to view] config attached to understand more about this issue.

Any queries contact me on PMB and this requires to fix ASAP.

Færdigheder: Amazon Web Services, Linux, Magento, MySQL, PHP

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Om arbejdsgiveren:
( 12 bedømmelser ) Bellevue, United States

Projekt-ID: #4055293

Tildelt til:

belghouth

I am able to fix the problem

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18 freelancere byder i gennemsnit $127 for dette job

jfreyre

Please check PMB

$100 NZD på 1 dag
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jthoma

The problem is that mysql cannot allocate the memory that it needs for your innodb engine to operate decently. I would suggest that we utilize dedicted mysql instance which can even be medium instead of a large instan Mere

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aroel

I'm ready to help you on this

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itamarjp

please check pm.

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codetrance

I can help you. Thank you.

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skrmm1

Looks like your server doesn't have enough RAM to allocate innodb pool. Could you show the top command output?

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hamidnk

check my reviews and message to evaluate me

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sabdsouza

I can help you with this

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blueforestsun

Hi, I can do it for you. Let me do it. Thanks.

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technofreakz

I can fix this issue..

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sumitgarg44

Can fix this...

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codehard

We are Magento Experts and are in business since 2006 and have developed more then 300+ Magento Projects . Lets get this Magento project done and you will not be disappointed . Please check your PMB

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garhwalsatyapal

ready to work with you

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developerlance

Ready to fix it Sir.

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aduntoredas

Good day, It seems that MySQL tries to allocate some memory and fails. I have requested some details via PM. Kind regards, C.R.

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jobsadmin

Have plenty of experience in this area. If can solve quickly you pay, otherwise no need.

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Spindizy

Your problem is easily fixed. It has to do with your InnoDB and MySQL config settings, and potentially one other issue, Which i will ask in PMB. With access to server, I can resolve in less than a day. I am an exper Mere

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meetbhumish

Hello, Glad to bid on your project. I have studied all your requirement and I am sure I will complete your task in given time line. Reason to bid on your project: 1) I have strong 4 years of experience in Amaz Mere

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