Trying out a new version of Apache, the first major update since 2005, not only has the gene added to cloud computing significantly improved performance, I/O read-write and memory-footprint optimization is greater, mainly by adding a enevt mode, which results in a good test.
Actually I tested the simple compiled static file and the Nginx processing performance, indeed, the test is a small difference, testing is the use of AB test, a single nginx and Apache test data obtained after comparison of the results, the next time the system test to send test data, temporarily only tested JPG images and HTML static files The data may not be representative.
The following compile-time, common errors are posted:
Error One:
Copy Code code as follows:
rotatelogs.o:in function Post_rotate ':
ROTATELOGS.C: (. text+0x5ed): Undefined reference to Apr_file_link '
Collect2:ld returned 1 exit status
MAKE[2]: * * * [rotatelogs] Error 1
MAKE[2]: Leaving Directory/root/src/httpd-2.4.2/support '
MAKE[1]: * * * [all-recursive] Error 1
MAKE[1]: Leaving Directory/root/src/httpd-2.4.2/support '
Make: * * * [all-recursive] Error 1
This is because there's no apr bag.
There are 2 solutions:
The first solution:
Copy Code code as follows:
Yum Remove "apr*"
wget http://ftp.jaist.ac.jp/pub/apache/apr/apr-1.4.6.tar.gz
Tar xzf apr-1.4.6.tar.gz
CD apr-1.4.6
./configure; make; Make install
wget http://ftp.jaist.ac.jp/pub/apache/apr/apr-util-1.4.1.tar.gz
Tar zxvf apr-util-1.4.1.tar.gz
CD apr-util-1.4.1
./configure–with-apr=/usr/local/apr
Yum install-y pcre-devel lua-devel libxml2-devel
The second solution:
After the ARP package is downloaded the CP to httpd folder
Copy Code code as follows:
Cp-r apr-1.4.6 HTTPD-2.4.2/SRCLIB/APR
Cp-r apr-util-1.4.1 Httpd-2.4.2/srclib/apr-util
It's going to work out.
The second common error is that only the mini installation will appear most of the rookie will not install Devel package
Copy Code code as follows:
Checking for OpenSSL version >= 0.9.7 ... FAILED
Configure:WARNING:OpenSSL version is too old
No
Checking whether to enable Mod_ssl ... Configure:error:mod_ssl has been requested but can not is built due to prerequisite Failures
Solutions
Copy Code code as follows:
Yum Install Openssl-devel
Yum Update OpenSSL
Recently ready to upgrade all servers to httpd 2.4.2 for better performance