Apache Traffic Server 6.0.0 发布

xdld 6年前

Apache Traffic Server 6.0.0 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。

Traffic Server设计的思想是将一个大系统划分为若干个小的子系统,每个子系统负责专门的任务或应用。比如,Event子系统负责提供任务调度服务,Net子 系统负责提供网络服务。每个子系统抽象为一个Processor,如图1所示。这种高内聚低耦合的设计原则使系统具有更好的重用性,维护性和扩展性。例 如,如果hostDBProcessor需要进行DNS解析,可以直接调用dnsProcessor的相关函数,而无需关注DNS解析的细 节;dnsProcessor也只需封装DNS请求和解析DNS应答,和网络相关的功能可以调用netProcessor来完成。

Apache Traffic Server 6.0.0 发布,此版本现已提供下载:

http://trafficserver.apache.org/downloads

当从 5.x 升级至 6.0 版本时,需要重新编译用户编写的插件。如果从 3.2.0+ 版本升级至 v6.0.0,清闲保存好缓存,详细升级指导请看:https://cwiki.apache.org/confluence/display/TS/Upgrading+to+v6.0

这是第二个支持 HTTP/2 的版本,现在已经趋于稳定。此版本不再支持 RHEL5。

主要改进如下:

日志记录组件

  • 应用协议 (HTTP/2, HTTP/1, SPDY/3.1), with %<cqpv>.

  • Milestones/state times of a transactions to get a better understanding of where time for responses is spent.

  • SSL session 攻击或者丢失

  • 连接复用或者请求新连接

Wiretracing TLS

  • Ability to wire trace and log TLS connections.  See "New Configuration Options" below.

PCRE Jit

  • Added support for PCRE Jit for regex_map.  Automatically used when compiled on a system that supports it.  There is a speed improvement over normal PCRE matching.

将废弃的特性

  • traffic_line command line program will be removed in the 7.0.0 release and is replaced by the command line program traffic_ctl

  • SPDY support will be removed in the 7.0.0 release and is replaced by only supporting HTTP/2

新配置选项

  • proxy.config.cop.init_sleep_time

  • proxy.config.http.websocket.max_number_of_connections

  • proxy.config.net.max_connections_active_in

  • proxy.config.http.max_post_size

  • proxy.config.http.cache.generation

  • proxy.config.http.cache.open_write_fail_action

  • proxy.config.net.inactivity_check_frequency

  • proxy.config.net.event_period

  • proxy.config.net.accept_period

  • proxy.config.net.retry_delay

  • proxy.config.net.throttle_delay

  • proxy.config.cache.read_while_writer.max_retries

  • proxy.config.cache.read_while_writer_retry.delay

  • proxy.config.log.periodic_tasks_interval

  • proxy.config.ssl.handshake_timeout_in

  • proxy.config.ssl.wire_trace_enabled

  • proxy.config.ssl.wire_trace_addrproxy.config.ssl.wire_trace_percentage

  • proxy.config.ssl.wire_trace_server_name

  • proxy.config.http2.accept_no_activity_timeout

  • proxy.config.http2.no_activity_timeout_in

  • proxy.config.allocator.hugepages

新指标