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最好的cdn开源系统--ATS(Apache-Trafficserver)-V7.0发布  

2016-11-14 18:41:19|  分类: ATS-linuxbox |  标签: |举报 |字号 订阅

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What's New in v7.0.x

These are the highlights of new features or additions to existing features in 7.0.0. For the complete list of all changes see this JIRA Release Notes.

Overview

New Features

  • HTTP/2 Server Push support added - requires a plugin and calling an API, there is an example plugin

  • HTTP/2 is enabled by default
  • IPv6 enabled by default

 

Deprecated Features

  • Clustering - It was decided that other mechanisms could be used to do cache clustering, such as parent cache or using the carp plugin
  • ICP (Internet Cache Protocol) - There were bug with ICP and it was decided that they are better protocols or using parent cache or using the carp plugin would be better
  • SPDY - SPDY Protocol was removed, people should be using HTTP/2 now

Future Deprecated Features

  • None

New Configuration Options

  • proxy.config.cop.active_health_checks
  • proxy.config.memory.max_usage
  • proxy.config.http.strict_uri_parsing
  • proxy.config.hostdb.max_size
  • proxy.config.hostdb.partitions
  • proxy.config.hostdb.max_count

New Metrics

  • None

New Promoted Plugins

 

  • AuthProxy - Delegates the authorization decision of a request to an external HTTP service.
  • Background Fetch - Proactively fetch content from Origin in a way that it will fill the object into cache. 
  • ESI - Implements the Edge Side Includes (ESI) specification.
  • Generator - Generate arbitrary response data for testing/benchmarking.
  • Regex Revalidate - Configurable rules for forcing cache object revalidations using regular expressions.
  • AWS S3 Authentication - Support for Amazon S3 authentication features.
  • XDebug - Allows HTTP clients to debug the operation of the Traffic Server cache using the X-Debug header.

 

New Plugins (in experimental)

Header Frequency - Count the frequency of headers.

V7.0的新特点

Deprecated features

  • Clustering - It was decided that other mechanisms could be used to do cache clustering, such as parent cache or using the carp plugin
  • ICP (Internet Cache Protocol) - There were bug with ICP and it was decided that they are better protocols or using parent cache or using the carp plugin would be better
  • SPDY - SPDY Protocol was remove, people should be using HTTP/2 now

Logging Configuration

  • logs_xml.config filename was renamed to logging.config

  • Format for logging.config changed from XML to Lua

Statistic/Metric Configuration

  • Format for metrics.config changed from XML to Lua

Cache

  • The cache format in this release is compatible with previous 4.x, 5.x, and 6.x releases.

New configuration defaults (changes since 6.2.0)

  • Only logging to the log file for these configurations options, syslog logging was turned off  - default value is not "L" and before it was "SL" 
    • proxy.config.diags.output.error
    • proxy.config.diags.output.fatal
    • proxy.config.diags.output.emergency
  • proxy.config.http.server_ports default value of "8080" was changed to "8080 8080:ipv6"
  • proxy.config.hostdb.timeout default value of "1440" was changed to "86400"
  • proxy.config.http.keep_alive_no_activity_timeout_in default value changed from 115 to 120
  • proxy.config.http2.no_activity_timeout_in default value changed from 115 to 120
  • proxy.config.http.cache.fuzz.time default value change from 240 to 0
  • proxy.config.http.cache.fuzz.probability default value change from .005 to .0

Configuration options removed(被移出的配置参数)

  • proxy.node.num_processes
  • proxy.config.ssl.compression
  • proxy.config.ssl.number.threads
  • proxy.config.system.mmap_max
  • proxy.config.stats.enable_lua
  • proxy.config.hostdb.size
  • proxy.config.hostdb.storage_size
  • proxy.config.ping.npacks_to_trans
  • proxy.config.ping.timeout_sec
  • proxy.config.http.enable_url_expandomatic
  • proxy.config.http.anonymize_insert_client_ip was renamed to proxy.config.http.insert_client_ip
  • proxy.config.dns.url_expansions
  • proxy.config.log.xml_config_file was renamed to proxy.config.log.config.filename and the default changed from logs_xml.config to logging.config (see Logging Configuration above)
  • proxy.config.ssl.SSLv2
  • proxy.config.icp.*
  • proxy.config.spdy.*
  • proxy.config.http2.enabled - http2 is enabled by default now

Statistics/Metrics removed

  • Removed the pct metrics, these can be calculated programmatically outside of ATS
  • proxy.cluster.*
  • proxy.config.spdy.*

更多内容:http://trafficserver.apache.org/

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