Skip Menu |

This queue is for tickets about the libwww-perl CPAN distribution.

Report information
The Basics
Id: 78829
Status: resolved
Priority: 0/
Queue: libwww-perl
People
Owner: Nobody in particular
Requestors: SREZIC [...] cpan.org
Cc:
AdminCc:
Bug Information
Severity: Wishlist
Broken in: 6.04
Fixed in: (no value)

History Show all quoted text
  Tue Aug 07 05:01:38 2012 SREZIC [...] cpan.org - Ticket created
Subject: Use keep_alive in lwp-request
Using keep-alive in lwp-request is useful if the requested URL is redirected. Here's a call to such an URL with strace logging of connect() system calls: $ strace -econnect /opt/perl-5.14.2/bin/lwp-request -eS http://www.microsoft.com connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory) connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory) connect(3, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("10.0.11.1")}, 16) = 0 connect(3, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("65.55.57.27")}, 16) = -1 EINPROGRESS (Operation now in progress) connect(3, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("65.55.57.27")}, 16) = 0 connect(3, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("10.0.11.1")}, 16) = 0 connect(3, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("65.55.57.27")}, 16) = -1 EINPROGRESS (Operation now in progress) connect(3, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("65.55.57.27")}, 16) = 0 GET http://www.microsoft.com 302 Found ... If keep_alive is used, then the number of connect() syscalls is reduced: $ strace -econnect perl5.14.2 ~/trash/lwp-request -eS http://www.microsoft.com connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory) connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory) connect(3, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("10.0.11.1")}, 16) = 0 connect(3, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("65.55.57.27")}, 16) = -1 EINPROGRESS (Operation now in progress) connect(3, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("65.55.57.27")}, 16) = 0 GET http://www.microsoft.com 302 Found ... Here's a diff which implements unconditional use of keep-alive: https://github.com/eserte/libwww-perl/commit/ec45894ff69014218ce6decca49ddf734fdb3fae Regards, Slaven
  Tue Aug 07 06:54:30 2012 SREZIC [...] cpan.org - Cc srezic@iconmobile.com added
  Fri Jun 21 08:27:57 2013 SREZIC [...] cpan.org - Cc srezic@iconmobile.com deleted
  Thu Mar 30 20:37:46 2017 olaf [...] wundersolutions.com - Correspondence added
Ticket migrated to github as https://github.com/libwww-perl/libwww-perl/issues/168
  Thu Mar 30 20:37:47 2017 The RT System itself - Status changed from 'new' to 'open'
  Thu Mar 30 20:37:58 2017 olaf [...] wundersolutions.com - Status changed from 'open' to 'resolved'