HAproxy 1.4.23发布，Web负载均衡

HAProxy提供高可用性、负载均衡以及基于TCP和HTTP应用的代理，支持虚拟主机， 它是免费、快速并且可靠的一种解决方案。HAProxy特别适用于那些负载特大的web站点， 这些站点通常又需要会话保持或七层处理。HAProxy运行在当前的硬件上，完全可以支持数以万计的并发连接。并且它的运行模式使得它可以很简单安全的整 合进您当前的架构中， 同时可以保护你的web服务器不被暴露到网络上。

1.4.23发布。2013-04-03 上一个版本是2012-08-15的1.4.22 修复了(CVE-2013-1912), affecting HTTP fetches in TCP request inspection rules.建议所有用户升级。以及大量改进。下一个产品系列1.5也已发布了Dev18

完全改进：

2013/04/03 : 1.4.23
- CONTRIB: halog: sort URLs by avg bytes_read or total bytes_read
- BUG: fix garbage data when http-send-name-header replaces an existing header
- BUG/MEDIUM: remove supplementary groups when changing gid
- BUG/MINOR: Correct logic in cut_crlf()
- BUG/MINOR: config: use a copy of the file name in proxy configurations
- BUG/MINOR: epoll: correctly disable FD polling in fd_rem()
- MINOR: halog: sort output by cookie code
- BUG/MINOR: halog: -ad/-ac report the correct number of output lines
- BUG/MINOR: halog: fix help message for -ut/-uto
- BUG/MEDIUM: http: set DONTWAIT on data when switching to tunnel mode
- BUG/MEDIUM: command-line option -D must have precedence over "debug"
- OPTIM: halog: keep a fast path for the lines-count only
- MINOR: halog: add a parameter to limit output line count
- BUG: halog: fix broken output limitation
- MEDIUM: checks: avoid accumulating TIME_WAITs during checks
- MEDIUM: checks: prevent TIME_WAITs from appearing also on timeouts
- BUG/MAJOR: cli: show sess may randomly corrupt the back-ref list
- BUG/MINOR: http: don't report client aborts as server errors
- BUG/MINOR: http: don't log a 503 on client errors while waiting for requests
- BUG/MEDIUM: tcp: process could theorically crash on lack of source ports
- BUG/MINOR: http: don't abort client connection on premature responses
- BUILD: no need to clean up when making git-tar
- MINOR: http: always report PR-- flags for redirect rules
- BUG/MINOR: time: frequency counters are not totally accurate
- BUG/MINOR: http: don't process abortonclose when request was sent
- BUG/MINOR: epoll: use a fix maxevents argument in epoll_wait()
- BUG/MINOR: config: fix improper check for failed memory alloc in ACL parser
- BUG/MEDIUM: checks: ensure the health_status is always within bounds
- CLEANUP: http: remove a useless null check
- BUG/MEDIUM: signal: signal handler does not properly check for signal bounds
- BUG/MEDIUM: uri_auth: missing NULL check and memory leak on memory shortage
- CLEANUP: config: slowstart is never negative
- BUILD: improve the makefile's support for libpcre
- BUG/MINOR: checks: fix an warning introduced by commit 2f61455a
- MEDIUM: halog: add support for counting per source address (-ic)
- DOC: mention the new HTTP 307 and 308 redirect statues (cherry picked from commit b67fdc4cd8bde202f2805d98683ddab929469a05)
- MEDIUM: poll: do not use FD_* macros anymore
- BUG/MAJOR: ev_select: disable the select() poller if maxsock > FD_SETSIZE
- BUILD: enable poll() by default in the makefile
- BUILD: add explicit support for Mac OS/X
- BUG/CRITICAL: using HTTP information in tcp-request content may crash the process
- MEDIUM: http: implement redirect 307 and 308
- MINOR: http: status 301 should not be marked non-cacheable

下载：http://haproxy.1wt.eu/download/1.4/src/haproxy-1.4.23.tar.gz

来自:开源中国社区