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File crossroads-stable.ChangeLog of Package crossroads-stable (Revision 4)
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2.30 [KK 2008-10-25] - Reversioned to 2.30 in prepration for STABLE release. - Bugfix in Netbuffer::netwrite() (debug output of written data) - SIGPIPE gets ignored, see sys/main.cc - Fixed re-entrancy issues for gethostbyname() that applies to some unices. See Backend::connect() (xr/backend/connect.cc). 2.22 [KK 2008-10-16] - Implemented up/down state in back ends. Fixed up the docs. - Rewrote msg() and debugmsg() handling: these are now macros that call _msg() and _debugmsg() depending on verbose/debug flags. The argument is a Mstr object, used to concatenate strings with ints, doubles and so on. 2.21 [KK 2008-10-14] - Fixed round-robin dispatching with only 1 configured back end. The bug was that on the next-time around, no "other" back end would be found. - Centralized reading/writing from fd's and buffer handling into class Netbuffer. This removes superfluous buffer copying in the HTTP dispatcher. - Rewrote HTTP dispatcher & (hopefully) optimized it. - Added Profiler class and xr/etc/xrprof tool. - Many other small changes. - Added docs on maxconn flags and weighted-load dispatching. - THIS VERSION IS A REWRITE OF THE HTTP DISPATCHER. IT IS ALPHA-QUALITY. 2.20 [KK 2008-10-13] - Fixed -C flag recognition, --close-sockets-fast worked, but I'd omitted -C from the flag set. - Ongoing optimization work. 2.19 [KK 2008-10-13] - Changed the TCP Dispatcher to allow for setting a maximum # connection attempts per client, with options to either defer the connection or drop it. - Added a dispatch mdoe "weighted-load" for randomly picking a back end based on the inverse of their respective load averages. (gem) - Verbose/debug options in the web interface are now rendered as select boxes. - Web interface errors are rendered on the client as an HTML error page. - Docs updated regarding web interface URI's. - Turned on compliler optimizing (had forgotten that before!) - Docs updated regarding web interface URI's. 2.18 [KK 2008-10-08] - Improved command line parsing, so that when --checkup-interval is used, suppression of "--wakeup-interval 0" is no longer needed. 2.17 [KK 2008-10-07] - Type sizes reported in "xr -V" - Fixed nasty bug in sys/fdwrite.cc 2.16 [KK 2008-10-05] - Enhanced web interface to show debug, verbose and traffic log states - Altering parameters for the web interface get sent in encoded form - Option --log-traffic was renamed to --log-traffic-dir for consistency - Enhanced web interface to modify client and back end timeouts - Enhanced web interface to modify wakeup / checkup intervals. 2.15 - Sanity checks in Config::parsecmdline(): -w/-c together throws error. - Network sends are now using write(), unless under Solaris, which uses send(). - --log-traffic logs to file with as the base name: the request number. - System (uname) is recorded during compilation and displayed in "xr -V" 2.14 [KK 2008-09-30] - Removed spurious debug message. - Fixed usage info for buffer size flag (should be -B, not -b). - Implemented flag -l (--log-traffic). 2.13 [KK 2008-09-17] - Porting issues resolved for older MacOSX (10.3, 10.4) - Bugfix in XML emitting of web interface. Most browsers didn't even notice.. 2.12 [KK 2008-09-10] - Small code changes for g++ v3.x backward-compatibility support. (Thanks Simon M.) - Web interface: layout enhanced, more modification options - Code cleanup, duplications removed - Network sending ignores some errno's and retries (see sys/fdwrite.cc) - Web interface retries binding to its socket (incase a previous instance hasn't terminated yet) - Web interface returns an HTTP error page (status 500 only, no content) during errors 2.11 [KK 2008-09-04] - Bugfix in "first-active" dispatch mode. Previously XR would gobble up fd's when no back end was available. - Web interface (first version) implemented. 2.10 [KK 2008-09-02] - Bugfix in host match mode. When a back end doesn't match anything, then the client isn't served. (Previously the dispatcher would fall back to least-connections over all known back ends.) - In HTTP mode, a 502 error gets returned to the client when dispatching fails or when back end processing goes haywire. There is just one error page, 502 error header, 0 bytes content length. - Implemented back end weights for least-connections dispatching. - Bugfix in Backend::connect(): Socket gets closed when connecting fails. 2.09 [KK 2008-09-01] --host-match code implemented 2.08 [KK 2008-08-31] I'd forgotten to include the 'P' into the set of allowed flags (--prefix-timestamp would work, -P not). Fixed. 2.07 [KK 2008-08-28] Stupid bug in 2.06, sorry that 2.06 got out.. Fixed. 2.06 [KK 2008-08-27] Upped c-conf to 1.14. xrctl updated: 'ps' command format also suitable for SunOS. New class Mutex implemented. Mutex-locks are now more fine-grained (per one global or static). Solaris9 port w/gcc 3.4.6 done. 2.05 [KK 2008-08-15] Thrown errors now based on std::exeception. "xr -V" shows compilation settings. Code reorganized into directory hierarchy. 2.04 [KK 2008-08-11] Mutex in Thread class is now a static. Implemented dispatching algorithm "stored clent ip", in the variants strict and lax. Flag -n / --tryout implemented. Implemented in xrctl. 2.03 [KK 2008-08-10] Updated docs regarding the mailing list. Fixed verbose display upon accepting a client ("current back end states"). Implemented dispatching algorithm "hashed client ip", in the variants strict and lax. 2.02 [KK 2008-08-09] Changes to the Makefile & some sources to avoid warnings under RHL (thanks, Simon M.). Bytes processed by a back end is now administered in TcpDispatcher::writechunk() and not readchunk(). Reason: In HTTP mode, the target back end is not yet known upon the first read -- the first read from the client comes before dispatching. Thanks Simon M. for the bug report. All select()'s now check for errno==EINTR, incase XR gets a signal -1 (for status report). 2.01 [KK 2008-08-08] Implemented flag -C (--close-sockets-fast): this option *can* be used under heavy stress when too many network sockets remain in TIME_WAIT state (try with 'netstat -n | grep TIME_WAIT'). Syntax of xrctl is checked upon "make commit". Added documentation about Solaris tcp_time_wait_interval and Linux ip_conntrack_max. Added documentation about binding XR to the same port, using different bind-to IP's. 2.00 [KK 2008-08-07] Release of 2.00.
