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Magento suddenly slow

Slow loading site 1.8 - next steps?Magento site so slow after some changes in.htaccess and configuration which were made to remove index.php from the urlMagento Extremely Slow When Cache “Full”Magento Backend horribly slow Nginx + PHP-FPM + MariaDB + RedisMagento 1.9.2.1- Performance Suddenly DecreasedBlank page after installation and admin 404Magento 2.2 often extremely slow, 100% processor usage after setup:upgradeSQLSTATE[HY000] [2006] MySQL server has gone away - hosting company says to OPTIMIZE Magento :-((Pre-installation) ownership and permissions problems (CentOS / NGINX)

2

I installed an existing Magento installation on a clean CentOS server.
This installation was running fast, with no problems and without any caching module.

Now, suddenly over the weekend, the speed dropped down from 2s/page to 5s/page.

Where do i have to look for a reason?

Update: I cleared the Magento cache folder, and now it's running fast again.
How to avoid this in the future?

magento-1.8 performance centos

share|improve this question

edited Feb 25 '14 at 10:12

B00MER

8,20321645

asked Feb 24 '14 at 10:12

RoywRoyw

20529

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  what cache backend do you use, and did you clean the cache after install the module?
  
  – Flyingmana
  Feb 25 '14 at 16:27
  

  
  
  
  

add a comment | 

2

I installed an existing Magento installation on a clean CentOS server.
This installation was running fast, with no problems and without any caching module.

Now, suddenly over the weekend, the speed dropped down from 2s/page to 5s/page.

Where do i have to look for a reason?

Update: I cleared the Magento cache folder, and now it's running fast again.
How to avoid this in the future?

magento-1.8 performance centos

share|improve this question

edited Feb 25 '14 at 10:12

B00MER

8,20321645

asked Feb 24 '14 at 10:12

RoywRoyw

20529

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  what cache backend do you use, and did you clean the cache after install the module?
  
  – Flyingmana
  Feb 25 '14 at 16:27
  

  
  
  
  

add a comment | 

I installed an existing Magento installation on a clean CentOS server.
This installation was running fast, with no problems and without any caching module.

Now, suddenly over the weekend, the speed dropped down from 2s/page to 5s/page.

Where do i have to look for a reason?

Update: I cleared the Magento cache folder, and now it's running fast again.
How to avoid this in the future?

magento-1.8 performance centos

share|improve this question

edited Feb 25 '14 at 10:12

B00MER

8,20321645

asked Feb 24 '14 at 10:12

RoywRoyw

20529

share|improve this question

edited Feb 25 '14 at 10:12

B00MER

8,20321645

asked Feb 24 '14 at 10:12

RoywRoyw

20529

share|improve this question

edited Feb 25 '14 at 10:12

B00MER

8,20321645

asked Feb 24 '14 at 10:12

RoywRoyw

20529

edited Feb 25 '14 at 10:12

B00MER

8,20321645

edited Feb 25 '14 at 10:12

B00MER

8,20321645

asked Feb 24 '14 at 10:12

RoywRoyw

20529

asked Feb 24 '14 at 10:12

RoywRoyw

20529

3 Answers
3

active

oldest

votes

1

If you are running Magento 1.8+ I highly recommend you enabled REDIS cache (See KB article here)

Here is some great information on speeding up Magento, implement the features that apply:
http://www.magentocommerce.com/boards/viewthread/36225/

Finally look into optimizing your database using mysqltuner.pl and tuning-primer.sh Google these and run against your database, follow the recommendations.

You should also configure your store to periodically clean the visitor logs:

System > Configuration > Advanced > System > Log Cleaning

Personal note: I too experienced the same performance drop, implementing a lot of the above helped significantly. You need to keep monitoring your sites performance and adjust settings as necessary.

Good luck!

share|improve this answer

edited Feb 25 '14 at 13:10

answered Feb 25 '14 at 12:13

SR_MagentoSR_Magento

3,374115096

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I installed APC in the meanwhile. Pageload is now within 2 seconds, so that's good. I also viewed mysqltuner.pl, the only recommendation was to enable slow query log and i see some error: ERROR 2013 (HY000) at line 1: Lost connection to MySQL server during query?? Yesterday, suddenly my entire system went down for some reason. I had to restart the system. Now i'm looking for a reason in the logs, but i can't find anything...
  
  – Royw
  Feb 26 '14 at 9:04
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  If you are able to access via CLI use the linux top command to find any high CPU/Memory processes.
  
  – B00MER
  Feb 26 '14 at 10:29
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  In my hosting graphs, i see a high CPU peek around the time that the system went down... At this time, there are no high CPU processes.
  
  – Royw
  Feb 26 '14 at 11:49
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I still advise that you go with REDIS, sub-zero page load times are hard to beat. If you have questions about another issue, please feel free to post a new question as it is not related to this one. If I have resolved your issue, kindly mark my answer as the accepted solution. SR
  
  – SR_Magento
  Feb 26 '14 at 12:10
  
  
  

  
  
  
  

add a comment | 

2

dont use file based caching. this causes many i/o requests which could slow down your application.

share|improve this answer

answered Feb 25 '14 at 11:47

sbothner_mzentralesbothner_mzentrale

212

We're looking for long answers that provide some explanation and context. Don't just give a one-line answer; explain why your answer is right, ideally with citations. Answers that don't include explanations may be removed.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  thats nothing a cache clean would fix, as many files on disk dont slow down the cache read magically.
  
  – Flyingmana
  Feb 25 '14 at 16:26
  

  
  
  
  

add a comment | 

0

Where do i have to look for a reason?

This is a bit old but I just had the same problem with v2.2.7 with a default setup (no REDIS or special mysql optimizations). I've been testing it fine for a few weeks or more and it's been pretty fast. Yesterday, out of nowhere, it got crazy slow.

When i looked at System > Tools > Cache Management everything was disabled. I'm not sure how that happened. It's been enabled since install. The only thing I did that day was try to apply a patch (unsuccessfully) but there were no warning or error messages in the console saying cache would be disabled. After re-enabling cache, everything was fast again.

share|improve this answer

answered 17 mins ago

learnsomemorelearnsomemore

237

add a comment | 

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1

If you are running Magento 1.8+ I highly recommend you enabled REDIS cache (See KB article here)

Here is some great information on speeding up Magento, implement the features that apply:
http://www.magentocommerce.com/boards/viewthread/36225/

Finally look into optimizing your database using mysqltuner.pl and tuning-primer.sh Google these and run against your database, follow the recommendations.

You should also configure your store to periodically clean the visitor logs:

System > Configuration > Advanced > System > Log Cleaning

Personal note: I too experienced the same performance drop, implementing a lot of the above helped significantly. You need to keep monitoring your sites performance and adjust settings as necessary.

Good luck!

share|improve this answer

edited Feb 25 '14 at 13:10

answered Feb 25 '14 at 12:13

SR_MagentoSR_Magento

3,374115096

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I installed APC in the meanwhile. Pageload is now within 2 seconds, so that's good. I also viewed mysqltuner.pl, the only recommendation was to enable slow query log and i see some error: ERROR 2013 (HY000) at line 1: Lost connection to MySQL server during query?? Yesterday, suddenly my entire system went down for some reason. I had to restart the system. Now i'm looking for a reason in the logs, but i can't find anything...
  
  – Royw
  Feb 26 '14 at 9:04
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  If you are able to access via CLI use the linux top command to find any high CPU/Memory processes.
  
  – B00MER
  Feb 26 '14 at 10:29
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  In my hosting graphs, i see a high CPU peek around the time that the system went down... At this time, there are no high CPU processes.
  
  – Royw
  Feb 26 '14 at 11:49
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I still advise that you go with REDIS, sub-zero page load times are hard to beat. If you have questions about another issue, please feel free to post a new question as it is not related to this one. If I have resolved your issue, kindly mark my answer as the accepted solution. SR
  
  – SR_Magento
  Feb 26 '14 at 12:10
  
  
  

  
  
  
  

add a comment | 

1

If you are running Magento 1.8+ I highly recommend you enabled REDIS cache (See KB article here)

Here is some great information on speeding up Magento, implement the features that apply:
http://www.magentocommerce.com/boards/viewthread/36225/

Finally look into optimizing your database using mysqltuner.pl and tuning-primer.sh Google these and run against your database, follow the recommendations.

You should also configure your store to periodically clean the visitor logs:

System > Configuration > Advanced > System > Log Cleaning

Personal note: I too experienced the same performance drop, implementing a lot of the above helped significantly. You need to keep monitoring your sites performance and adjust settings as necessary.

Good luck!

share|improve this answer

edited Feb 25 '14 at 13:10

answered Feb 25 '14 at 12:13

SR_MagentoSR_Magento

3,374115096

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I installed APC in the meanwhile. Pageload is now within 2 seconds, so that's good. I also viewed mysqltuner.pl, the only recommendation was to enable slow query log and i see some error: ERROR 2013 (HY000) at line 1: Lost connection to MySQL server during query?? Yesterday, suddenly my entire system went down for some reason. I had to restart the system. Now i'm looking for a reason in the logs, but i can't find anything...
  
  – Royw
  Feb 26 '14 at 9:04
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  If you are able to access via CLI use the linux top command to find any high CPU/Memory processes.
  
  – B00MER
  Feb 26 '14 at 10:29
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  In my hosting graphs, i see a high CPU peek around the time that the system went down... At this time, there are no high CPU processes.
  
  – Royw
  Feb 26 '14 at 11:49
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I still advise that you go with REDIS, sub-zero page load times are hard to beat. If you have questions about another issue, please feel free to post a new question as it is not related to this one. If I have resolved your issue, kindly mark my answer as the accepted solution. SR
  
  – SR_Magento
  Feb 26 '14 at 12:10
  
  
  

  
  
  
  

add a comment | 

If you are running Magento 1.8+ I highly recommend you enabled REDIS cache (See KB article here)

Here is some great information on speeding up Magento, implement the features that apply:
http://www.magentocommerce.com/boards/viewthread/36225/

Finally look into optimizing your database using mysqltuner.pl and tuning-primer.sh Google these and run against your database, follow the recommendations.

You should also configure your store to periodically clean the visitor logs:

System > Configuration > Advanced > System > Log Cleaning

Personal note: I too experienced the same performance drop, implementing a lot of the above helped significantly. You need to keep monitoring your sites performance and adjust settings as necessary.

Good luck!

share|improve this answer

edited Feb 25 '14 at 13:10

answered Feb 25 '14 at 12:13

SR_MagentoSR_Magento

3,374115096

System > Configuration > Advanced > System > Log Cleaning

share|improve this answer

edited Feb 25 '14 at 13:10

answered Feb 25 '14 at 12:13

SR_MagentoSR_Magento

3,374115096

answered Feb 25 '14 at 12:13

SR_MagentoSR_Magento

3,374115096

answered Feb 25 '14 at 12:13

SR_MagentoSR_Magento

3,374115096

2

dont use file based caching. this causes many i/o requests which could slow down your application.

share|improve this answer

answered Feb 25 '14 at 11:47

sbothner_mzentralesbothner_mzentrale

212

We're looking for long answers that provide some explanation and context. Don't just give a one-line answer; explain why your answer is right, ideally with citations. Answers that don't include explanations may be removed.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  thats nothing a cache clean would fix, as many files on disk dont slow down the cache read magically.
  
  – Flyingmana
  Feb 25 '14 at 16:26
  

  
  
  
  

add a comment | 

2

dont use file based caching. this causes many i/o requests which could slow down your application.

share|improve this answer

answered Feb 25 '14 at 11:47

sbothner_mzentralesbothner_mzentrale

212

We're looking for long answers that provide some explanation and context. Don't just give a one-line answer; explain why your answer is right, ideally with citations. Answers that don't include explanations may be removed.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  thats nothing a cache clean would fix, as many files on disk dont slow down the cache read magically.
  
  – Flyingmana
  Feb 25 '14 at 16:26
  

  
  
  
  

add a comment | 

dont use file based caching. this causes many i/o requests which could slow down your application.

share|improve this answer

answered Feb 25 '14 at 11:47

sbothner_mzentralesbothner_mzentrale

212

share|improve this answer

answered Feb 25 '14 at 11:47

sbothner_mzentralesbothner_mzentrale

212

answered Feb 25 '14 at 11:47

sbothner_mzentralesbothner_mzentrale

212

answered Feb 25 '14 at 11:47

sbothner_mzentralesbothner_mzentrale

212

0

Where do i have to look for a reason?

This is a bit old but I just had the same problem with v2.2.7 with a default setup (no REDIS or special mysql optimizations). I've been testing it fine for a few weeks or more and it's been pretty fast. Yesterday, out of nowhere, it got crazy slow.

When i looked at System > Tools > Cache Management everything was disabled. I'm not sure how that happened. It's been enabled since install. The only thing I did that day was try to apply a patch (unsuccessfully) but there were no warning or error messages in the console saying cache would be disabled. After re-enabling cache, everything was fast again.

share|improve this answer

answered 17 mins ago

learnsomemorelearnsomemore

237

add a comment | 

0

Where do i have to look for a reason?

This is a bit old but I just had the same problem with v2.2.7 with a default setup (no REDIS or special mysql optimizations). I've been testing it fine for a few weeks or more and it's been pretty fast. Yesterday, out of nowhere, it got crazy slow.

When i looked at System > Tools > Cache Management everything was disabled. I'm not sure how that happened. It's been enabled since install. The only thing I did that day was try to apply a patch (unsuccessfully) but there were no warning or error messages in the console saying cache would be disabled. After re-enabling cache, everything was fast again.

share|improve this answer

answered 17 mins ago

learnsomemorelearnsomemore

237

add a comment | 

Where do i have to look for a reason?

This is a bit old but I just had the same problem with v2.2.7 with a default setup (no REDIS or special mysql optimizations). I've been testing it fine for a few weeks or more and it's been pretty fast. Yesterday, out of nowhere, it got crazy slow.

When i looked at System > Tools > Cache Management everything was disabled. I'm not sure how that happened. It's been enabled since install. The only thing I did that day was try to apply a patch (unsuccessfully) but there were no warning or error messages in the console saying cache would be disabled. After re-enabling cache, everything was fast again.

share|improve this answer

answered 17 mins ago

learnsomemorelearnsomemore

237

share|improve this answer

answered 17 mins ago

learnsomemorelearnsomemore

237

answered 17 mins ago

learnsomemorelearnsomemore

237

answered 17 mins ago

learnsomemorelearnsomemore

237