well i can reproduce, but it took me to the 12th request... * Connected to bne-b-ccs1.cdn.aarnet.edu.au (113.197.9.38) port 80 (#0) > GET /pub/ubuntu/archive/dists/saucy/main/binary-i386/Packages.bz2 HTTP/1.1 > User-Agent: curl/7.34.0 > Host: bne-b-ccs1.cdn.aarnet.edu.au > Accept: */* > 0 0 0 0 0 0 0 0 --:--:-- 0:00:06 --:--:-- 0^C
then I looked to see if I could do it with HEAD requests too, and I can.. but got up to 29.. 29 * Hostname was NOT found in DNS cache * Adding handle: conn: 0x2524ca0 * Adding handle: send: 0 * Adding handle: recv: 0 * Curl_addHandleToPipeline: length: 1 * - Conn 0 (0x2524ca0) send_pipe: 1, recv_pipe: 0 * Trying 113.197.9.38... * Connected to bne-b-ccs1.cdn.aarnet.edu.au (113.197.9.38) port 80 (#0) > HEAD /pub/ubuntu/archive/dists/saucy/main/binary-i386/Packages.bz2 HTTP/1.1 > User-Agent: curl/7.34.0 > Host: bne-b-ccs1.cdn.aarnet.edu.au > Accept: */* > ^C not that I have any answers for you. Ben. On Tue, Jan 07, 2014 at 05:11:27AM +0000, David Jericho wrote: > Hi Leif, > > > > It's HTTP, no HTTPS. > > > > > http://bne-b-ccs1.cdn.aarnet.edu.au/pub/ubuntu/archive/dists/saucy/main/binary-i386/Packages.bz2 > is a URL I've been using to test it. A simple while true loop will bring > it up, after a few requests. > > > > I used the following configure line to setup the software. > > ./configure --prefix=/srv/trafficserver-4.1.2 > --sysconfdir=/srv/trafficserver-4.1.2/etc --localstatedir=/var > --enable-experimental-plugins --with-boost --with-hwloc > --with-user=www-data --with-group=www-data > > I've included config below from records.config, stripping out things that > were turned off and most things that were left default. > > > > CONFIG proxy.config.system.mmap_max INT 2097152 > > CONFIG proxy.config.exec_thread.autoconfig INT 1 > > CONFIG proxy.config.exec_thread.autoconfig.scale FLOAT 1.5 > > CONFIG proxy.config.exec_thread.limit INT 2 > > CONFIG proxy.config.accept_threads INT 1 > > CONFIG proxy.config.exec_thread.affinity INT 0 > > CONFIG proxy.config.http.keep_alive_enabled_in INT 1 > > CONFIG proxy.config.http.keep_alive_enabled_out INT 1 > > CONFIG proxy.config.http.chunking_enabled INT 1 > > CONFIG proxy.config.http.send_http11_requests INT 1 > > CONFIG proxy.config.http.share_server_sessions INT 1 > > CONFIG proxy.config.http.origin_server_pipeline INT 1 > > CONFIG proxy.config.http.user_agent_pipeline INT 8 > > CONFIG proxy.config.http.parent_proxy_routing_enable INT 0 > > CONFIG proxy.config.http.keep_alive_no_activity_timeout_in INT 0 > > CONFIG proxy.config.http.keep_alive_no_activity_timeout_out INT 0 > > CONFIG proxy.config.http.transaction_no_activity_timeout_in INT 0 > > CONFIG proxy.config.http.transaction_no_activity_timeout_out INT 0 > > CONFIG proxy.config.http.transaction_active_timeout_in INT 0 > > CONFIG proxy.config.http.transaction_active_timeout_out INT 0 > > CONFIG proxy.config.http.accept_no_activity_timeout INT 0 > > CONFIG proxy.config.http.background_fill_active_timeout INT 0 > > CONFIG proxy.config.http.background_fill_completed_threshold FLOAT > 0.000000 > > CONFIG proxy.config.http.congestion_control.enabled INT 0 > > CONFIG proxy.config.http.negative_caching_enabled INT 1 > > CONFIG proxy.config.http.negative_caching_lifetime INT 300 > > CONFIG proxy.config.http.cache.http INT 1 > > CONFIG proxy.config.http.cache.allow_empty_doc INT 1 > > CONFIG proxy.config.http.cache.ignore_client_no_cache INT 1 > > CONFIG proxy.config.http.cache.ims_on_client_no_cache INT 0 > > CONFIG proxy.config.http.cache.ignore_server_no_cache INT 0 > > CONFIG proxy.config.http.cache.ignore_client_cc_max_age INT 1 > > CONFIG proxy.config.http.normalize_ae_gzip INT 0 > > CONFIG proxy.config.http.cache.ignore_authentication INT 1 > > CONFIG proxy.config.http.cache.cache_urls_that_look_dynamic INT 1 > > CONFIG proxy.config.http.cache.enable_default_vary_headers INT 1 > > CONFIG proxy.config.http.cache.when_to_revalidate INT 0 > > CONFIG proxy.config.http.cache.when_to_add_no_cache_to_msie_requests INT > -1 > > CONFIG proxy.config.http.cache.required_headers INT 0 > > CONFIG proxy.config.http.enable_http_stats INT 1 > > CONFIG proxy.config.net.connections_throttle INT 30000 > > CONFIG proxy.config.net.defer_accept INT 1 > > CONFIG proxy.config.cache.permit.pinning INT 1 > > CONFIG proxy.config.cache.ram_cache.size INT 214748364800 > > CONFIG proxy.config.cache.ram_cache_cutoff INT 8589934592 > > CONFIG proxy.config.cache.ram_cache.algorithm INT 0 > > CONFIG proxy.config.cache.ram_cache.use_seen_filter INT 1 > > CONFIG proxy.config.cache.max_doc_size INT 0 > > CONFIG proxy.config.cache.enable_read_while_writer INT 1 > > CONFIG proxy.config.cache.min_average_object_size INT 8000 > > CONFIG proxy.config.cache.force_sector_size 4096 > > CONFIG proxy.config.reverse_proxy.enabled INT 1 > > CONFIG proxy.config.net.sock_send_buffer_size_in INT 0 > > CONFIG proxy.config.net.sock_recv_buffer_size_in INT 0 > > CONFIG proxy.config.net.sock_send_buffer_size_out INT 0 > > CONFIG proxy.config.net.sock_recv_buffer_size_out INT 0 > > > > I'm definitely keen to see where I've messed up. > > > > > > From: Leif Hedstrom [mailto:[email protected]] > Sent: Tuesday, 7 January 2014 2:55 PM > To: [email protected]; David Jericho > Subject: Re: Stalling ATS 4.1.2 and Ubuntu archives > > > > On Jan 6, 2014, at 8:06 PM, David Jericho <[email protected]> > wrote: > > Hi all, > > > > I have a mirror service with Ubuntu content, redirected via a L7 front end > to an ATS host running 4.1.2. I get an unusual behaviour where content > delivery stalls with consecutive requests. > > > > Across the archive whole, it's efficient and fast, but I can trip it up > with a single client, and the apt-get process often stalls for individual > users. I'm at a bit of a loss as to why. I've eliminated the L7 front end, > and I've eliminated the content backends as the cause of the fault. If I > remove ATS from the path, or talk to either end directly, the service is > reliable and consistent. > > > > > > Is this HTTP or HTTPS ? Is there some setup / configs you can share, > together with URLs / curl directives to try to reproduce ? > > > > - leif > >
