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Apache returns empty response and must restart [closed]

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.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;

-1

I have the classical LAMP configuration on several servers, on one server I can frequently see Apache returned an empty error.

I have PHP-FPM running to serve .php file, static pages like .html is okay however if I keep the server running for 1 day, .php will be inaccessible and returned empty response, I must restart httpd to recover this issue.

I can see the only error log in Apache is:

[:error] [pid 21153] ModSecurity: ModSecurity requires mod_unique_id to be installed.

However I have same configuration on other servers, both got this error but did not have this issue.

How should I diagnose this issue?

Thanks in advance.

linux php apache-2.4 php-fpm httpd

share|improve this question

asked Apr 15 '16 at 16:05

GreenVineGreenVine

11

closed as off-topic by Jenny D, Thomas, Ward♦ May 20 at 5:06

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "Questions seeking installation, configuration or diagnostic help must include the desired end state, the specific problem or error, sufficient information about the configuration and environment to reproduce it, and attempted solutions. Questions without a clear problem statement are not useful to other readers and are unlikely to get good answers." – Jenny D, Thomas, Ward

If this question can be reworded to fit the rules in the help center, please edit the question.

add a comment | 

-1

I have the classical LAMP configuration on several servers, on one server I can frequently see Apache returned an empty error.

I have PHP-FPM running to serve .php file, static pages like .html is okay however if I keep the server running for 1 day, .php will be inaccessible and returned empty response, I must restart httpd to recover this issue.

I can see the only error log in Apache is:

[:error] [pid 21153] ModSecurity: ModSecurity requires mod_unique_id to be installed.

However I have same configuration on other servers, both got this error but did not have this issue.

How should I diagnose this issue?

Thanks in advance.

linux php apache-2.4 php-fpm httpd

share|improve this question

asked Apr 15 '16 at 16:05

GreenVineGreenVine

11

closed as off-topic by Jenny D, Thomas, Ward♦ May 20 at 5:06

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "Questions seeking installation, configuration or diagnostic help must include the desired end state, the specific problem or error, sufficient information about the configuration and environment to reproduce it, and attempted solutions. Questions without a clear problem statement are not useful to other readers and are unlikely to get good answers." – Jenny D, Thomas, Ward

If this question can be reworded to fit the rules in the help center, please edit the question.

add a comment | 

I have the classical LAMP configuration on several servers, on one server I can frequently see Apache returned an empty error.

I have PHP-FPM running to serve .php file, static pages like .html is okay however if I keep the server running for 1 day, .php will be inaccessible and returned empty response, I must restart httpd to recover this issue.

I can see the only error log in Apache is:

[:error] [pid 21153] ModSecurity: ModSecurity requires mod_unique_id to be installed.

However I have same configuration on other servers, both got this error but did not have this issue.

How should I diagnose this issue?

Thanks in advance.

linux php apache-2.4 php-fpm httpd

share|improve this question

asked Apr 15 '16 at 16:05

GreenVineGreenVine

11

share|improve this question

asked Apr 15 '16 at 16:05

GreenVineGreenVine

11

share|improve this question

asked Apr 15 '16 at 16:05

GreenVineGreenVine

11

asked Apr 15 '16 at 16:05

GreenVineGreenVine

11

asked Apr 15 '16 at 16:05

GreenVineGreenVine

11

2 Answers
2

active

oldest

votes

2

The error message tells you exactly what the problem is. Do you have the following line commented out in your config perhaps?

LoadModule unique_id_module modules/mod_unique_id.so

You may need to recompile Apache if you did not compile it with the --enable-unique-id flag (most distributions have it included in compiled version though possibly commented about in config as per above).

share|improve this answer

answered Apr 24 '16 at 20:05

Barry PollardBarry Pollard

3,571822

add a comment | 

-1

If the apache is failing to respond after one or two days means it is a performance issue, consider increasing the worker process and servver process instances. Some basic example below, tweak it as per your needs to resolve the issue.

ServerLimit 16
StartServers 2
MaxRequestWorkers 150
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25

share|improve this answer

answered Apr 15 '16 at 16:44

PrasPras

11

add a comment | 

2

The error message tells you exactly what the problem is. Do you have the following line commented out in your config perhaps?

LoadModule unique_id_module modules/mod_unique_id.so

You may need to recompile Apache if you did not compile it with the --enable-unique-id flag (most distributions have it included in compiled version though possibly commented about in config as per above).

share|improve this answer

answered Apr 24 '16 at 20:05

Barry PollardBarry Pollard

3,571822

add a comment | 

2

The error message tells you exactly what the problem is. Do you have the following line commented out in your config perhaps?

LoadModule unique_id_module modules/mod_unique_id.so

You may need to recompile Apache if you did not compile it with the --enable-unique-id flag (most distributions have it included in compiled version though possibly commented about in config as per above).

share|improve this answer

answered Apr 24 '16 at 20:05

Barry PollardBarry Pollard

3,571822

add a comment | 

The error message tells you exactly what the problem is. Do you have the following line commented out in your config perhaps?

LoadModule unique_id_module modules/mod_unique_id.so

You may need to recompile Apache if you did not compile it with the --enable-unique-id flag (most distributions have it included in compiled version though possibly commented about in config as per above).

share|improve this answer

answered Apr 24 '16 at 20:05

Barry PollardBarry Pollard

3,571822

LoadModule unique_id_module modules/mod_unique_id.so

share|improve this answer

answered Apr 24 '16 at 20:05

Barry PollardBarry Pollard

3,571822

answered Apr 24 '16 at 20:05

Barry PollardBarry Pollard

3,571822

answered Apr 24 '16 at 20:05

Barry PollardBarry Pollard

3,571822

-1

If the apache is failing to respond after one or two days means it is a performance issue, consider increasing the worker process and servver process instances. Some basic example below, tweak it as per your needs to resolve the issue.

ServerLimit 16
StartServers 2
MaxRequestWorkers 150
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25

share|improve this answer

answered Apr 15 '16 at 16:44

PrasPras

11

add a comment | 

-1

If the apache is failing to respond after one or two days means it is a performance issue, consider increasing the worker process and servver process instances. Some basic example below, tweak it as per your needs to resolve the issue.

ServerLimit 16
StartServers 2
MaxRequestWorkers 150
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25

share|improve this answer

answered Apr 15 '16 at 16:44

PrasPras

11

add a comment | 

If the apache is failing to respond after one or two days means it is a performance issue, consider increasing the worker process and servver process instances. Some basic example below, tweak it as per your needs to resolve the issue.

ServerLimit 16
StartServers 2
MaxRequestWorkers 150
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25

share|improve this answer

answered Apr 15 '16 at 16:44

PrasPras

11

share|improve this answer

answered Apr 15 '16 at 16:44

PrasPras

11

answered Apr 15 '16 at 16:44

PrasPras

11

answered Apr 15 '16 at 16:44

PrasPras

11