Apache Traffic Server 5.2.0 发布反向代理服务

Apache Traffic Server 5.2.0 发布，Traffic Server 是一套快速、模块化的兼容 HTTP/1.1 的反向代理服务器，与 Nginx 和 Squid 类似，目前该项目已经转到 Apache 基金会。

该版本包含 bug 修复，新特性和改进，详细介绍请看这里。

完整的记录包括：

Sub-task

[TS-1476] – static analysis: argument with ‘nonnull’ attribute passed null
[TS-1477] – static analysis: dead store, dead assignment
[TS-1478] – static analysis: dead store, dead increment
[TS-1479] – static analysis: dead store, dead initialization
[TS-1480] – static analysis: logic error, called C++ object pointer is null
[TS-1481] – static analysis: logic error, dereference of null pointer

Bug

[TS-407] – traffic_server not using proxy.config.syslog_facility
[TS-898] – Fix potential problems from coverity scan
[TS-1475] – Static analysis: clean up all clang and coverity reports
[TS-1535] – FetchSM process_fetch_write should ignore event TS_EVENT_VCONN_WRITE_READY
[TS-1570] – remap doesn’t reject request whose Host has extra characters after port (like “test.com:80xxx”)
[TS-2009] – Disallow \0 in all headers
[TS-2095] – autoconf warnings related to unordered_map
[TS-2883] – core dump in TSFetchCreate()
[TS-2938] – Core dump in HttpSM::redirect_request when handling 307
[TS-2959] – Compiler warnings from gcc 4.9.1
[TS-3020] – Blind Tunnel fake request URL is IPv4 only
[TS-3026] – SPDY not forwarding Accept-Encoding headers for Firefox
[TS-3035] – Double logging on errored transactions
[TS-3039] – OCSP stapling memory leaks
[TS-3042] – Fix the static traffic_server build
[TS-3048] – Removed hard coded directory in TSPluginDirGet Regresson Test
[TS-3051] – Bad if for perror on AIO.cc
[TS-3064] – Expose TS_EVENT_VCONN_ACTIVE_TIMEOUT in headers
[TS-3065] – Delete the header “Transfer-Encoding” when the error body was set
[TS-3066] – Latest master does not compile on OmniOS
[TS-3073] – tr-pass: non-http request gets blocked with error message instead of being tunnelled to the origin server
[TS-3074] – Regression fails on FreeBSD after TS-2736
[TS-3076] – Coverity warning and build error on RHEL6
[TS-3081] – ATS doesn’t send FIN flag to indicate data complete to the client in some cases..
[TS-3083] – Double free of FetchSM
[TS-3084] – Forwarding mode breaks iPhone activation (gs.apple.com)
[TS-3085] – Large POSTs over (relatively) slower connections failing in ats5
[TS-3087] – Flow control can stall at low water mark values
[TS-3092] – SSL_CTX_set_timeout should be set even if Server Side Session Cache is disabled
[TS-3097] – Reloading SSL certificates crashes
[TS-3098] – Fix the ability to configure keep-alive on post to the origin
[TS-3105] – Combination of fixes for TS-3084 and TS-3073 causing asserts and segfaults on 5.1 and beyond
[TS-3106] – ATS error responses do not flush request body
[TS-3109] – Build broken on ubuntu saucy64
[TS-3112] – core dump in FetchSM.cc
[TS-3120] – Overlapping rank in config.remap when using .include directives
[TS-3121] – Seeing garbage SPDY responses sometimes
[TS-3125] – SSL ctx is set to a constant allowing for potential inappropriate session reuse.
[TS-3129] – Parent proxy configuration does not work for incoming HTTPS requests
[TS-3130] – Core dump in Logging
[TS-3152] – We offer up H2-14 on current master, even when it’s not working / supported
[TS-3179] – ats_scoped_fd should not provide boolean operators
[TS-3184] – SPDY window_update not triggered correctly..
[TS-3188] – Do not set half_close flag for short post on keep_alive client connections
[TS-3189] – Do not start reading data on server to user agent tunnel too soon
[TS-3190] – Change producer_run() to run a specific producer in more cases
[TS-3191] – Confusion with HTTP_TUNNEL_STATIC_PRODUCER
[TS-3196] – Core dump when handle event check_inactivity
[TS-3199] – HEAD request over SPDY hangs until inactivity timeout
[TS-3202] – HTTP Parsing should not allow CTL characters in the method
[TS-3205] – ASAN complaints on config reload freeing malloc’ed memory with delete[]
[TS-3207] – _xstrdup incorrectly calls ink_strlcpy with zero length strings
[TS-3221] – ink_atoi64 return 0 for input of 0..9
[TS-3223] – Fix the internal buffer sizing.
[TS-3226] – SSL data not read from the socket sometimes causing transactions to timeout
[TS-3244] – stats_over_http plugin does not get the optional path argument properly
[TS-3248] – 5.2.0 Segmentation fault due to TS-3189
[TS-3254] – AdminClient.pm broken in v5.2.0
[TS-3257] – possible memory leak in v5.2.0
[TS-3261] – possible slow leak in v5.2.0
[TS-3262] – Build failure using clang on Fedora 21
[TS-3265] – core dump in spdy_prepare_status_response_and_clean_request
[TS-3274] – Cache fixup can cause race condition in ram cache.
[TS-3276] – Cache incompatible between 5.0.1 and 5.2.0
[TS-3280] – Segfault in new freelist bulk freeing

Improvement

[TS-1120] – Use ink_zero / ats_zero instead of calling memset when zeroing a variable or member.
[TS-2119] – mysql_remap plugin is in the source tree but does not build
[TS-2289] – Only support AIO_MODE_THREAD and AIO_MODE_NATIVE
[TS-2561] – Remove app-template from examples
[TS-2945] – Balancer plugin forward to other port than 80
[TS-2989] – ats_speed: implement In-Place-Resource-Optimization flow
[TS-3006] – Augment SNI callback processing
[TS-3023] – Support space separated values in inline plugin parameters in remap rules
[TS-3024] – Build with OPENSSL_NO_SSL_INTERN
[TS-3033] – Reimplement management protocol
[TS-3034] – Unanchored traffic_line metrics match
[TS-3041] – Add a way to show the installation layout
[TS-3044] – Linux native AIO should use eventfd if available to signal thread
[TS-3047] – The Makefile.am for traffic_top is inconsistent with the rest of the build system
[TS-3054] – Premature origin connection reset: flush partial data received to client before closing client connection
[TS-3068] – Remove usage of Boost
[TS-3069] – Add mysql_remap to automake
[TS-3070] – Consistent span configuration
[TS-3071] – Emit JSON numbers in stats_over_http
[TS-3093] – Add additional functionality to IpAddr.
[TS-3103] – Improve privilege elevation
[TS-3114] – Refactor IpMap to make the RB tree a shared data structure
[TS-3116] – Add support for tracking the use of the ioBuffers
[TS-3131] – Revise the certificates loading procedure
[TS-3135] – Disable SSLv3 by default
[TS-3143] – Convert DFA class to Regex and add support for JIT
[TS-3147] – Improvements to ESI plugin first byte flush feature
[TS-3150] – atscppapi should support streaming HTTP fetch
[TS-3154] – Add proxy port to access log
[TS-3155] – Add a value test method to the MIMEField class
[TS-3156] – Mutex[Try]Lock bool() operator change and unused API removal
[TS-3157] – standardize –help and –version options
[TS-3171] – Tidy up Tokenizer interface
[TS-3178] – ProxyAllocator improvements
[TS-3185] – Increase the default spdy initial_window_size_in setting to 1 mb
[TS-3194] – Remove unused proxy.config.plugin.plugin_mgmt_dir
[TS-3233] – Add drain option to restart API

New Feature

[TS-1432] – API is missing TSMutexDestroy
[TS-2314] – New config to allow unsatifiable Range: request to go straight to Origin
[TS-2417] – Add forward secrecy support with DHE (SSL related)
[TS-2503] – Dynamic TLS record size tuning
[TS-2682] – Add per remap configuration / activation to background_fetch
[TS-2683] – Add some control for which content to activate the background_fetch plugin
[TS-2955] – Support variable expansion in set-redirect operator for header_rewrite
[TS-2956] – Add ssl_pre_handshake hook for better plugin access to SSL handling and allow for combination of blind tunnel and tunnel proxying
[TS-3059] – Logging API is missing a TSTextLogObjectRollingSizeMbSet()
[TS-3080] – OpenSSL implementation of TLS session cache is very slow.
[TS-3101] – Add TSHttpHdrHostGet
[TS-3108] – Add port matching condition to header_rewrite
[TS-3115] – Add server response time field in custom logging fields
[TS-3119] – Add option to support SO_LINGER to origin server
[TS-3127] – Add config for OpenSSL session cache auto clear
[TS-3139] – Add script to “replicate” a response across a set of proxy caches (using PUSH)
[TS-3145] – traffic_line backtrace support
[TS-3149] – Move Via decoder out of traffic_line, and make a separate traffic_via tool
[TS-3192] – Implement proxy.config.config_dir
[TS-3195] – Improved crash logging