what can be causes of http server crash?

Posted by mithunmo on Server Fault See other posts from Server Fault or by mithunmo
Published on 2010-03-13T02:33:14Z Indexed on 2010/03/13 2:47 UTC
Read the original article Hit count: 607

Filed under:

crash

Hello ,

I am using WAMP server on Windows XP.

Apache 2.2.11
MySQL 5.1.36 (INNODB engine)
PHP 5.3.0

I observe that my WAMP server crashes in the following scenarios

IF I use a Low end PC ( low processor speed and low RAM)
After making some changes to httpd.conf file .For eg changing the Allow from IP address . But here it crashes only once and then it starts to work fine.
Random crashes

CRASH LOG

szAppName : httpd.exe     szAppVer : 2.2.11.0     szModName : php5ts.dll     
szModVer : 5.3.0.0     offset : 0000c309     


C:\DOCUME~1\blrcom\LOCALS~1\Temp\WERc677.dir00\httpd.exe.mdmp
C:\DOCUME~1\blrcom\LOCALS~1\Temp\WERc677.dir00\appcompat.txt

My questions

Does high CPU utilization/LOW RAM can also cause the HTTP server to crash ?
excessive file reading as in every 10 seconds ?
unlimited script execution time . I have set the maximum execution time in php script to 0 as my script has to execute for sometimes 2-3 days. Is there any way to avoid this ?
Access to Database ? Should we use lock before reading and writing

Can these be the reasons for random wamp server crashes ? OR is is some other programming error ? Please guide me .

Regards, Mithun

what can be causes of http server crash?

Posted by mithunmo on Stack Overflow See other posts from Stack Overflow or by mithunmo
Published on 2010-03-13T02:33:14Z Indexed on 2010/03/13 2:37 UTC
Read the original article Hit count: 607

Filed under:

crash

Hello ,

I am using WAMP server on Windows XP. - Apache 2.2.11 - MySQL 5.1.36 (INNODB engine) - PHP 5.3.0

I observe that my WAMP server crashes in the following scenarios

1) IF I use a Low end PC ( low processor speed and low RAM) 2) After making some changes to httpd.conf file .For eg changing the Allow from IP address . But here it crashes only once and then it starts to work fine. 3) Random crashes

CRASH LOG
szAppName : httpd.exe     szAppVer : 2.2.11.0     szModName : php5ts.dll     
szModVer : 5.3.0.0     offset : 0000c309     


C:\DOCUME~1\blrcom\LOCALS~1\Temp\WERc677.dir00\httpd.exe.mdmp
C:\DOCUME~1\blrcom\LOCALS~1\Temp\WERc677.dir00\appcompat.txt

My questions

1) Does high CPU utilization/LOW RAM can also cause the HTTP server to crash ? 2) excessive file reading as in every 10 seconds ? 3) unlimited script execution time . I have set the maximum execution time in php script to 0 as my script has to execute for sometimes 2-3 days. Is there any way to avoid this ? 4) Access to Database ? Should we use lock before reading and writing

Can these be the reasons for random wamp server crashes ? OR is is some other programming error ? Please guide me .

Regards, Mithun

Developer IT