Difference between revisions of "Aria2"

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(Additional Resources)
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* [http://sourceforge.net/apps/trac/aria2/wiki aria2 Wiki] - Official Site
 
* [http://sourceforge.net/apps/trac/aria2/wiki aria2 Wiki] - Official Site
 
* [http://sourceforge.net/apps/trac/aria2/wiki/UsageExample aria2 Usage Examples] - Official Site
 
* [http://sourceforge.net/apps/trac/aria2/wiki/UsageExample aria2 Usage Examples] - Official Site
* [http://wiki.gotux.net/aria2c] - Proxy Usage Config Example
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* [http://wiki.gotux.net/aria2c Proxy Usage Config Example] - UnOfficial Site

Revision as of 13:58, 20 November 2011

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Introduction

aria2 is lightweight, command-line download manager featuring support for HTTP/HTTPS, FTP, BitTorrent and Metalink protocols. aria2 is generally regarded as one of the lightest and fastest download managers available and across multiple platforms. Some of the more outstanding features of aria2 include great flexibility of layout through the use of numerous options and configuration files and a built-in XML-RPC management interface.

Installation

Template:Package Official is part of the official Arch Linux [extra] repository.

$ pacman -Si aria2
Repository     : extra
Name           : aria2
Version        : 1.10.0-1
URL            : http://aria2.sourceforge.net/
Licenses       : GPL
Groups         : None
Provides       : None
Depends On     : gnutls  libxml2  sqlite3  c-ares  ca-certificates
Optional Deps  : None
Conflicts With : None
Replaces       : None
Download Size  : 981.56 K
Installed Size : 4392.00 K
Packager       : Daniel J Griffiths <ghost1227@archlinux.us>
Architecture   : x86_64
Build Date     : Mon 16 Aug 2010 09:53:21 PM PDT
MD5 Sum        : b15758227506df9fc8c81b8493a6a7d1
Description    : Download utility that supports HTTP(S), FTP, BitTorrent, and
                 Metalink

Download and install aria2 and its dependencies:

# pacman -S aria2

Execution

The executable name for the aria2 package is Template:Codeline. This legacy naming convention has been retained for backwards compatibility.

Configuration

aria2.conf

aria2 looks to Template:Filename for a set of global configuration options by default. This behavior can be modified with the Template:Codeline switch:

$ aria2c --conf-path=/file/aria2.options http://rapidshare.com/files/12345678/aria2.example.rar

If Template:Filename exists and the options specified in Template:Filename are desired, the Template:Codeline switch must be appended to the command:

$ aria2c --no-conf --conf-path=/file/aria2.rapidshare http://rapidshare.com/files/12345678/aria2.example.rar

If Template:Filename does not yet exist and you wish to simplify the management of configuration options:

$ touch ~/.aria2/aria2.conf

Example .bash_alias

alias down='aria2c --conf-path=${HOME}/.aria2/aria2.conf'
alias rapid='aria2c --conf-path=/file/aria2.rapidshare'

Example aria2.conf

continue
dir=${HOME}/Desktop
file-allocation=none
input-file=${HOME}/.aria2/input.conf
log-level=warn
max-connection-per-server=4
min-split-size=5M
on-download-complete=exit

This is essentially the same as if running the following:

$ aria2c dir=~/home/USER_NAME/Desktop file-allocation=none input-file=~/home/USER_NAME/.aria2/input.conf on-download-complete=exit log-level=warn FILE

Option Details

Template:Codeline
Continue downloading a partially downloaded file if a corresponding control file exists.
Template:Codeline
Store the downloaded file(s) in Template:Filename.
Template:Codeline
Do not pre-allocate disk space before downloading begins. (Default: prealloc) 1
Template:Codeline
Download a list of line, or TAB separated URIs found in Template:Filename
Template:Codeline
Set log level to output warnings and errors only. (Default: debug)
Template:Codeline
Set a maximum of four (4) connections to each server per file. (Default: 1)
Template:Codeline
Only split the file if the size is larger than 2*5MB = 10MB. (Default: 20M)
Template:Codeline
Run the Template:Codeline command and exit the shell once the download session is complete.
Example Input File #1
http://aria2.net/files/stable/aria2-1.10.0/aria2-1.10.0.tar.bz2    http://sourceforge.net/projects/aria2/files/stable/aria2-1.10.0/aria2-1.10.0.tar.bz2
Example Input File #2
http://aria2.net/files/stable/aria2-1.9.5/aria2-1.9.5.tar.bz2
  dir=/file/old
  out=aria2.old.tar.bz2
http://aria2.net/files/stable/aria2-1.10.0/aria2-1.10.0.tar.bz2
  out=aria2.new.tar.bz2

Additional Notes

1 Template:Codeline
Recommended for newer file systems such as ext4 (with extents support), btrfs or xfs as it allocates large files (GB) almost instantly. Do not use falloc with legacy file systems such as ext3 as prealloc consumes approximately the same amount of time as standard allocation would while locking the aria2 process from proceeding to download.
Tip: See Template:Codeline and the aria2 man page for a complete list of configuration options.

Example aria2.rapidshare

http-user=USER_NAME
http-passwd=PASSWORD
allow-overwrite=true
dir=/file/Downloads
file-allocation=falloc
enable-http-pipelining=true
input-file=/file/input.rapidshare
log-level=error
max-connection-per-server=2
summary-interval=120

Option Details

Template:Codeline
Set HTTP username as USER_NAME for password-protected logins. This affects all URIs.
Template:Codeline
Set HTTP password as PASSWORD for password-protected logins. This affects all URIs.
Template:Codeline
Restart download if a corresponding control file does not exist. (Default: false)
Template:Codeline
Store the downloaded file(s) in Template:Filename.
Template:Codeline
Call posix_fallocate() to allocate disk space before downloading begins. (Default: prealloc)
Template:Codeline
Enable HTTP/1.1 pipelining to overcome network latency and to reduce network load. (Default: false)
Template:Codeline
Download a list of single line of TAB separated URIs found in Template:Filename
Template:Codeline
Set log level to output errors only. (Default: debug)
Template:Codeline
Set a maximum of two (2) connections to each server per file. (Default: 1)
Template:Codeline
Output download progress summary every 120 seconds. (Default: 60) 3

Additional Notes

  • Because Template:Filename the contains a username and password, it is advisable to set permissions on the file to 600, or similar.
arch ~ $ cd /file
arch /file  $ chmod 600 /file/aria2.rapidshare
arch /file $ ls -l
total 128M
-rw------- 1 arch users  167 Aug 20 00:00 aria2.rapidshare
3 Template:Codeline
Supresses download progress summary output and may improve overall performance. Logs will continue to be output according to the value specified in the Template:Codeline option.
Tip: The example configuration file can also be applied to Hotfile, DepositFiles, et.al.
Note: Command-line options always take precedence over options listed in a configuration file.

Example aria2.bittorrent

bt-seed-unverified
max-overall-upload-limit=1M
max-upload-limit=128K
seed-ratio=5.0
seed-time=240

Option Details

Template:Codeline
Do not check the hash of the file(s) before seeding. (Default: true)
Template:Codeline
Set maximum overall upload speed to 1MB/sec (Default: 0)
Template:Codeline
Set maximum upload speed per torrent to 128K/sec (Default: 0)
Template:Codeline
Seed completed torrents until share ratio reaches 5.0. (Default: 1.0)
Template:Codeline
Seed completed torrents for 240 minutes.
Note: If both Template:Codeline and Template:Codeline are specified, seeding ends when at least one of the conditions is satisfied.

Useful Tips & Tricks

pacman XferCommand

aria2c can be used as the default download manager for the pacman package manager. See the ArchWiki article Improve Pacman Performance for additional details.

Custom Minimal Build

Gains in application response can be gleaned by removing unused features and protocols. Further gains can be accomplished by removing support for external libraries with a custom build. The following example creates an Template:Filename executable with HTTP/HTTPS, FTP download and asynchronous DNS support only. See the Arch Build System page for further details.

Minimal PKGBUILD Example

pkgname=aria2
pkgver=1.10.0
pkgrel=100
pkgdesc="Download utility that supports HTTP(S) and FTP"
arch=('i686' 'x86_64')
url="http://aria2.sourceforge.net/"
license=('GPL')
depends=('c-ares' 'gnutls' 'zlib' 'ca-certificates')
source=(http://downloads.sourceforge.net/aria2/aria2-${pkgver}.tar.bz2)
md5sums=('1386df9b2003f42695062a0e1232e488')

build() {
  cd ${srcdir}/${pkgname}-${pkgver}

 ./configure --disable-bittorrent --disable-metalink \
 --disable-dependency-tracking --disable-xmltest --disable-nls \
 --without-sqlite3 --without-libxml2 --without-libexpat \
 --with-ca-bundle=/etc/ssl/certs/ca-certificates.crt --prefix=/usr

 make
}

package() {
	cd ${srcdir}/${pkgname}-${pkgver}
	make DESTDIR=${pkgdir} install
}

Package Removal

To remove the package while retaining its configuration files and dependencies:

# pacman -R aria2

To remove the aria2 package and its configuration files while retaining its dependencies:

# pacman -Rn aria2

To remove the aria2 package and dependencies not required by any other packages while retaining its configuration files:

# pacman -Rs aria2

To remove the aria2 package, its configuration files and dependencies not required by any other packages:

# pacman -Rns aria2
Note: Pacman will not remove configuration files outside of the defaults that were created during package installation. This includes Template:Filename

Additional Resources