mirror of
http://git.haproxy.org/git/haproxy.git/
synced 2024-12-16 00:14:31 +00:00
haproxy public development tree
5259dfedd1
This patch adds two new variables: fastinter and downinter.
When server state is:
- non-transitionally UP -> inter (no change)
- transitionally UP (going down), unchecked or transitionally DOWN (going up) -> fastinter
- down -> downinter
It allows to set something like:
server sr6 127.0.51.61:80 cookie s6 check inter 10000 downinter 20000 fastinter 500 fall 3 weight 40
In the above example haproxy uses 10000ms between checks but as soon as
one check fails fastinter (500ms) is used. If server is down
downinter (20000) is used or fastinter (500ms) if one check pass.
Fastinter is also used when haproxy starts.
New "timeout.check" variable was added, if set haproxy uses it as an additional
read timeout, but only after a connection has been already established. I was
thinking about using "timeout.server" here but most people set this
with an addition reserve but still want checks to kick out laggy servers.
Please also note that in most cases check request is much simpler
and faster to handle than normal requests so this timeout should be smaller.
I also changed the timeout used for check connections establishing.
Changes from the previous version:
- use tv_isset() to check if the timeout is set,
- use min("timeout connect", "inter") but only if "timeout check" is set
as this min alone may be to short for full (connect + read) check,
- debug code (fprintf) commented/removed
- documentation
Compile tested only (sorry!) as I'm currently traveling but changes
are rather small and trivial.
|
||
|---|---|---|
| doc | ||
| examples | ||
| include | ||
| src | ||
| tests | ||
| .gitignore | ||
| CHANGELOG | ||
| CONTRIB | ||
| LICENSE | ||
| Makefile | ||
| Makefile.bsd | ||
| Makefile.osx | ||
| README | ||
| ROADMAP | ||
| SUBVERS | ||
| TODO | ||
| VERDATE | ||
| VERSION | ||
-------------------
H A - P r o x y
How to build it
-------------------
version 1.2.7
willy tarreau
2005/10/25
To build haproxy, you will need :
- GNU make. Neither Solaris nor OpenBSD's make work with this makefile.
- GCC between 2.91 and 3.4. Others may work, but not tested.
- GNU ld
Also, you might want to build with libpcre support, which will provide a very
efficient regex implementation and will also fix some badness on Solaris's one.
To build haproxy, you have to choose your target OS amongst the following ones
and assign it to the TARGET variable :
- linux24 for Linux 2.4 and above (default)
- linux24e for Linux 2.4 with support for epoll
- linux26 for Linux 2.6 and above
- linux22 for Linux 2.2
- solaris for Solaris 8 or 10 (others untested)
- openbsd for OpenBSD 3.1 to 3.7 (others untested)
- generic for any other OS.
You may also choose your CPU to benefit from some optimizations. This is
particularly important on UltraSparc machines. For this, you can assign
one of the following choices to the CPU variable :
- i686 for intel PentiumPro, Pentium 2 and above, AMD Athlon
- i586 for intel Pentium, AMD K6, VIA C3.
- ultrasparc : Sun UltraSparc I/II/III/IV processor
- generic : any other processor or no specific optimization. (default)
If your system supports PCRE (Perl Compatible Regular Expressions), then you
really should build with libpcre which is between 2 and 10 times faster than
other libc implementations. Regex are used for header processing (deletion,
rewriting, allow, deny). The only inconvenient of libpcre is that it is not
yet widely spread, so if you build for other systems, you might get into
trouble if they don't have the dynamic library. In this situation, you should
statically link libpcre into haproxy so that it will not be necessary to
install it on target systems. Available options for the REGEX variable are :
- libc to use your OS libc's standard regex implemntation (default).
Warning! group references on Solaris seem broken. Use static-pcre whenever
possible.
- pcre to use libpcre, in whatever form it is available on your system
(shared or static)
- static-pcre to use a static version of libpcre even if the dynamic one is
available. This will enhance portability.
By default, the DEBUG variable is set to '-g' to enable debug symbols. It is
not wise to disable it on uncommon systems, because it's often the only way to
get a complete core when you need one. Otherwise, you can set DEBUG to '-s' to
strip the binary.
For example, I use this to build for Solaris 8 :
$ make TARGET=solaris CPU=ultrasparc REGEX=static-pcre
And I build it this way on OpenBSD :
$ make -f Makefile.bsd REGEX=pcre DEBUG= COPTS.generic="-Os -fomit-frame-pointer -mgnu"
If you need to pass other defines, includes, libraries, etc... then please
check the Makefile to see which ones will be available in your case, and
use the ADDINC, ADDLIB, and DEFINE variables for this.
-- end