Forum: NGINX nginx: worker process exited with fatal code 2 and cannot be respawn | eventfd() failed.

I successfully configured nginx and had everything working fine until a
few days back when i got a message from the systems administrator that
the ruby application was not responding upon investigation, I noticed
when i start nginx its only the master process that runs. I went ahead
to check the error logs and found this:

ERROR LOGS:

2010/11/24 15:48:03 [emerg] 18529#0: eventfd() failed (38: Function not
implemented)
2010/11/24 15:48:03 [emerg] 18530#0: eventfd() failed (38: Function not
implemented)
2010/11/24 15:48:03 [emerg] 18531#0: eventfd() failed (38: Function not
implemented)
2010/11/24 15:48:03 [emerg] 18532#0: eventfd() failed (38: Function not
implemented)
2010/11/24 15:48:03 [alert] 18457#0: worker process 18529 exited with
fatal code 2 and can not be respawn
2010/11/24 15:48:03 [alert] 18457#0: worker process 18530 exited with
fatal code 2 and can not be respawn
2010/11/24 15:48:03 [alert] 18457#0: worker process 18531 exited with
fatal code 2 and can not be respawn
2010/11/24 15:48:03 [alert] 18457#0: worker process 18532 exited with
fatal code 2 and can not be respawn
2010/11/24 15:48:07 [crit] 18457#0: the changing binary signal is
ignored: you should shutdown or terminate before either old or new
binary's process
2010/11/24 15:48:07 [crit] 17142#0: the changing binary signal is
ignored: you should shutdown or terminate before either old or new
binary's process


Please note that i used yum to install nginx and it is running on a
CentOS.   It was running perfectly. I have researched into the problem
but most solutions suggest that i recompile the nginx
"--without-file-aio" option which does not help me.
Can someone please direct me in the right path as to the best solution
to this problem, and what might be the possible cause. Thanks!

Hello!

On Wed, Nov 24, 2010 at 05:14:45PM +0100, Eric A. wrote:

[...]

> 2010/11/24 15:48:03 [emerg] 18529#0: eventfd() failed (38: Function not
> implemented)

[...]

> Please note that i used yum to install nginx and it is running on a
> CentOS.   It was running perfectly. I have researched into the problem
> but most solutions suggest that i recompile the nginx
> "--without-file-aio" option which does not help me.

You have to recompile nginx *without* --with-file-aio configure
option.

Your system lacks eventfd() support and nginx compiled with
--with-file-aio configure option (on another host? compile on the
host in question with --with-file-aio should fail unless your
system headers screwed up) won't work on it.

Maxim Dounin

On 24.11.2010 18:41, Maxim Dounin wrote:

>> 2010/11/24 15:48:03 [emerg] 18529#0: eventfd() failed (38: Function not
>> implemented)

>> Please note that i used yum to install nginx and it is running on a
>> CentOS.   It was running perfectly. I have researched into the problem
>> but most solutions suggest that i recompile the nginx
>> "--without-file-aio" option which does not help me.

> You have to recompile nginx *without* --with-file-aio configure
> option.

...or just update CentOS to latest version

eventfd() backported in newer CentOS5/RHEL5 kernel.

--
Best regards,
  Gena

Gena Makhomed wrote in post #963628:
> On 24.11.2010 18:41, Maxim Dounin wrote:
>
>>> 2010/11/24 15:48:03 [emerg] 18529#0: eventfd() failed (38: Function not
>>> implemented)
>
>>> Please note that i used yum to install nginx and it is running on a
>>> CentOS.   It was running perfectly. I have researched into the problem
>>> but most solutions suggest that i recompile the nginx
>>> "--without-file-aio" option which does not help me.
>
>> You have to recompile nginx *without* --with-file-aio configure
>> option.
>
> ...or just update CentOS to latest version
>
> eventfd() backported in newer CentOS5/RHEL5 kernel.
>
> --
> Best regards,
>   Gena

Hi Gena and Maxim,Thank you both for the  quick response.
Gena:
I must add that the application is hosted on a remote server which I do 
not have control over. So updating to the latest CentOS is not an option 
and if you think otherwise please let me know.
Maxim:
I would be glad if you can point me to resources on how I can recompile 
nginx *without* --with-file-aio configure  since I am not an expect on 
compiling nginx, and its looks like its my only option in this case.

Thanks.

Hello!

On Wed, Nov 24, 2010 at 11:53:48PM +0100, Eric A. wrote:

> >
>
> Hi Gena and Maxim,Thank you both for the  quick response.
> Gena:
> I must add that the application is hosted on a remote server which I do
> not have control over. So updating to the latest CentOS is not an option
> and if you think otherwise please let me know.
> Maxim:
> I would be glad if you can point me to resources on how I can recompile
> nginx *without* --with-file-aio configure  since I am not an expect on
> compiling nginx, and its looks like its my only option in this case.

http://wiki.nginx.org/Install#Building_Nginx_From_Source

Basic procedure is as usual:

./configure && make && make install

Maxim Dounin

Maxim Dounin wrote in post #963825:
> Hello!
>
> On Wed, Nov 24, 2010 at 11:53:48PM +0100, Eric A. wrote:
>
>> >
>>
>> Hi Gena and Maxim,Thank you both for the  quick response.
>> Gena:
>> I must add that the application is hosted on a remote server which I do
>> not have control over. So updating to the latest CentOS is not an option
>> and if you think otherwise please let me know.
>> Maxim:
>> I would be glad if you can point me to resources on how I can recompile
>> nginx *without* --with-file-aio configure  since I am not an expect on
>> compiling nginx, and its looks like its my only option in this case.
>
> http://wiki.nginx.org/Install#Building_Nginx_From_Source
>
> Basic procedure is as usual:
>
> ./configure && make && make install
>
> Maxim Dounin


Hi in trying to recompile with the command -$./configure 
--without-file-aio. I am faced with this error.

./configure: error: invalid option "--without-file-aio"

I alternatively compiled with the latest nginx source file(nginx-0.8.53) 
without "--with-file-aio" configure option and it compiled ok. But after 
reinstalling nginx on the system and running nginx i have the same error 
existing in the error logs.

Hello!

On Fri, Nov 26, 2010 at 02:59:11PM +0100, Eric Agbeli wrote:

> >> not have control over. So updating to the latest CentOS is not an option
> > ./configure && make && make install
> >
> > Maxim Dounin
>
>
> Hi in trying to recompile with the command -$./configure
> --without-file-aio. I am faced with this error.
>
> ./configure: error: invalid option "--without-file-aio"

There are no configure argument --without-file-aio, and this error
is expected.

> I alternatively compiled with the latest nginx source file(nginx-0.8.53)
> without "--with-file-aio" configure option and it compiled ok. But after
> reinstalling nginx on the system and running nginx i have the same error
> existing in the error logs.

Most likely you are starting wrong binary, not the one you've just
compiled and installed.

Please follow startup scripts you use to find binary you actually
starting and examine it (with ls -l to check date/time, via
running with -V switch to see configure arguments).

Maxim Dounin

Maxim Dounin wrote in post #964105:
> Hello!
>
> On Fri, Nov 26, 2010 at 02:59:11PM +0100, Eric Agbeli wrote:
>
>> >> not have control over. So updating to the latest CentOS is not an option
>> > ./configure && make && make install
>> >
>> > Maxim Dounin
>>
>>
>> Hi in trying to recompile with the command -$./configure
>> --without-file-aio. I am faced with this error.
>>
>> ./configure: error: invalid option "--without-file-aio"
>
> There are no configure argument --without-file-aio, and this error
> is expected.
>
>> I alternatively compiled with the latest nginx source file(nginx-0.8.53)
>> without "--with-file-aio" configure option and it compiled ok. But after
>> reinstalling nginx on the system and running nginx i have the same error
>> existing in the error logs.
>
> Most likely you are starting wrong binary, not the one you've just
> compiled and installed.
>
> Please follow startup scripts you use to find binary you actually
> starting and examine it (with ls -l to check date/time, via
> running with -V switch to see configure arguments).
>
> Maxim Dounin

Thanks a mil for drawing my attention to the fact that i was running the 
old binary. I investigated further and realized that the startup script 
as you stated was pointing to an old binary. So I modified the script to 
point to the new binary and all seems to be working perfectly well. :D 
:D

I must add that it seems right to build with the new source which is 
nginx-0.8.53. One other thing was that, I faced an error while pointing 
to the new binary file. Error is shown below

unknown directive "ssl" in /etc/nginx/nginx.conf

The solution to solving this problem was to recompile nginx with the 
configure option "--with-http_ssl_module".

./configure --with-http_ssl_module

THANKS MAXIM!!! 'MEDAASE' as we say in my local dialect.
Cheers!