** Description changed: - apt-get is appears to be mangling the local caching file names, which is - appearing as a hashsum or size mismatch. + [SRU: Cloud-Init] + r536 and r537 contains a fix that: + 1.) Disables APT pipelining on first boot for new Cloud Images instances + 2.) Disables APT pipelining on installation for existing cloud-images. + + The rational for this SRU is due to the Mirror situation for EC2 Cloud + images. Currently, the mirrors are proving to have moments of + instability that is causing both end-user and development pain. In order + to address this, we built out Amazon AWS S3 mirrors. Unfortantly, due to + a bug in S3, apt http pipeling does not work with S3. As a result, in + order to provide enhanced availability for the Cloud Image repositories + in EC2, apt http pipelining needs to be disabled ahead of flipping the + new S3 mirrors as the active mirrors. + + The performance impact of this change is unnoticable and in testing, has + proven to provide no ill effect. http pipeplining allows for multiple + requests to be made at the same time. The apt change log states that + http pipelining is a "micro-enhancement" and within the EC2 environment + shaves a few seconds of many requests. When apt http pipeling works, at + best, it saves a few seconds, when it fails against a buggy HTTP1.1 + server or behind a proxy that does not support it, the failures are + arbitrary and not adiquetly explained. This change will enhance the + Cloud Images by making apt request packages sequentially instead of in + batches and prevent arbitrary failures caused by non-compliant web + servers. Cloud image users, both on EC2 and outside, will benefit from + this fix. + + http://bazaar.launchpad.net/~cloud-init-dev/cloud-init/trunk/revision/536 + http://bazaar.launchpad.net/~cloud-init-dev/cloud-init/trunk/revision/537 + + + _______________________________________________________________________________________ + apt-get is appears to be mangling the local caching file names, which is appearing as a hashsum or size mismatch. Evidence below: _______________________________________________________________________________________ Output of "apt-get -y install firefox": Failed to fetch http://us-east-1.ec2.archive.ubuntu.com.s3.amazonaws.com/ubuntu/pool/main/p/python-defer/python-defer_1.0.2+bzr481-1_all.deb Size mismatch Failed to fetch http://us-east-1.ec2.archive.ubuntu.com.s3.amazonaws.com/ubuntu/pool/main/a/aptdaemon/python-aptdaemon_0.43+bzr769-0ubuntu1_all.deb Size mismatch Failed to fetch http://us-east-1.ec2.archive.ubuntu.com.s3.amazonaws.com/ubuntu/pool/main/a/aptdaemon/aptdaemon_0.43+bzr769-0ubuntu1_all.deb Size mismatch Failed to fetch http://us-east-1.ec2.archive.ubuntu.com.s3.amazonaws.com/ubuntu/pool/main/u/ubufox/xul-ext-ubufox_2.0-0ubuntu1_all.deb Size mismatch _______________________________________________________________________________________ apt-get -y install firefox with debug for HTTP turned on: Get:63 http://us-east-1.ec2.archive.ubuntu.com.s3.amazonaws.com/ubuntu/ precise/main python-defer all 1.0.2+bzr481-1 [10.9 kB] HTTP/1.1 200 OK^M x-amz-id-2: EXccd6GVMfE6ly4SYdwy313VK42d/gI3ncyxmaotuVIMbBBi6FJkuDYWrzLw7vXE^M x-amz-request-id: 7572BAB5E6FFFAC0^M Date: Tue, 06 Mar 2012 20:06:13 GMT^M Last-Modified: Fri, 03 Feb 2012 08:54:27 GMT^M ETag: "6c07f8db615cc32657b1cc57450a1608"^M Accept-Ranges: bytes^M Content-Type: application/x-debian-package^M Content-Length: 15142^M Server: AmazonS3^M ^M Get:64 http://us-east-1.ec2.archive.ubuntu.com.s3.amazonaws.com/ubuntu/ precise/main python-aptdaemon all 0.43+bzr769-0ubuntu1 [80.3 kB] HTTP/1.1 200 OK^M x-amz-id-2: IcNECY1OtzHOXnTnTW3fqoJGyfdODq+qRXXGYTDEOJxfw0CP9UH8EUSllVR3Gf3F^M x-amz-request-id: 5DEEEE629E3BA012^M Date: Tue, 06 Mar 2012 20:06:13 GMT^M Last-Modified: Fri, 02 Mar 2012 20:55:40 GMT^M ETag: "501373631a241847cf76d13aea9264b3"^M Accept-Ranges: bytes^M Content-Type: application/x-debian-package^M Content-Length: 56824^M Server: AmazonS3^M ^M Get:65 http://us-east-1.ec2.archive.ubuntu.com.s3.amazonaws.com/ubuntu/ precise/main aptdaemon all 0.43+bzr769-0ubuntu1 [15.1 kB] HTTP/1.1 200 OK^M x-amz-id-2: HHNSOZKH74D4I1XCaOiwDOzIWxIVJ88ibfKxvIp/4NpkczzPmsOhMqxrTj2T02qO^M x-amz-request-id: A6FD3143E6A0BA1A^M Date: Tue, 06 Mar 2012 20:06:34 GMT^M Last-Modified: Sat, 21 Jan 2012 00:48:55 GMT^M ETag: "3653165af1f20a437a14632ce0a2e6c2"^M Accept-Ranges: bytes^M Content-Type: application/x-debian-package^M Content-Length: 10902^M Server: AmazonS3^M _______________________________________________________________________________________ Evaluation of the MD5sums of downloaded failed items: root@ip-10-6-85-206:/var/cache/apt/archives/partial# md5sum * 501373631a241847cf76d13aea9264b3 aptdaemon_0.43+bzr769-0ubuntu1_all.deb 6c07f8db615cc32657b1cc57450a1608 python-aptdaemon_0.43+bzr769-0ubuntu1_all.deb 566f7c92a9fcd0c5c40d08a977176291 python-defer_1.0.2+bzr481-1_all.deb 3653165af1f20a437a14632ce0a2e6c2 xul-ext-ubufox_2.0-0ubuntu1_all.deb _______________________________________________________________________________________ Snipets from Packages.bz2 From Meta-data: Package: aptdaemon MD5sum: 6c07f8db615cc32657b1cc57450a1608 Package: xul-ext-ubufox MD5sum: 501373631a241847cf76d13aea9264b3 Package: python-aptdaemon MD5sum: 566f7c92a9fcd0c5c40d08a977176291 Package: python-defer MD5sum: 3653165af1f20a437a14632ce0a2e6c2 _______________________________________________________________________________________ "dpkg -i" on pacakges downloaded root@ip-10-6-85-206:/var/cache/apt/archives/partial# dpkg -I aptdaemon_0.43+bzr769-0ubuntu1_all.deb new debian package, version 2.0. size 56824 bytes: control archive= 1520 bytes. 23 bytes, 1 lines conffiles 1023 bytes, 29 lines control 1804 bytes, 21 lines md5sums Package: xul-ext-ubufox Source: ubufox Version: 2.0-0ubuntu1 Architecture: all Maintainer: Ubuntu Mozilla Team <ubuntu-mozillat...@lists.ubuntu.com> Installed-Size: 383 Depends: aptdaemon, libglib2.0-0 (>= 2.26) Recommends: firefox (>= 4.0~b6) Enhances: firefox Breaks: ubufox (<< 0.9~rc2-0ubuntu3)a Replaces: ubufox (<< 0.9~rc2-0ubuntu3) Provides: firefox-ubufox, ubufox Section: web Priority: optional Homepage: https://launchpad.net/ubufox Description: Ubuntu-specific configuration defaults and apt support for Firefox Adds Ubuntu-specific modifications to Firefox. . Integrates the browser with Ubuntu to: * Enable searching for missing plugins from Ubuntu software catalog * Add the following options to the Help menu - Get help on-line - Help translating Firefox - Ubuntu Release Notes * Set homepage to Ubuntu Start Page * Display a restart notification after upgrading Firefox * Add ask.com to the search engines. . You can uninstall this if you prefer to use a pristine Firefox install. root@ip-10-6-85-206:/var/cache/apt/archives/partial# dpkg -I python-aptdaemon_0.43+bzr769-0ubuntu1_all.deb new debian package, version 2.0. size 15142 bytes: control archive= 1508 bytes. 68 bytes, 2 lines conffiles 1390 bytes, 30 lines control 1088 bytes, 15 lines md5sums Package: aptdaemon Version: 0.43+bzr769-0ubuntu1 Architecture: all Maintainer: Ubuntu Developers <ubuntu-devel-disc...@lists.ubuntu.com> Installed-Size: 188 Depends: python, python-aptdaemon (= 0.43+bzr769-0ubuntu1), python-gi, gir1.2-glib-2.0 Breaks: software-center (<< 1.1.21) Section: admin Priority: extra Homepage: https://launchpad.net/aptdaemon Description: transaction based package management service Aptdaemon allows normal users to perform package management tasks, e.g. refreshing the cache, upgrading the system, installing or removing software packages. . Currently it comes with the following main features: . - Programming language independent D-Bus interface, which allows one to write clients in several languages - Runs only if required (D-Bus activation) - Fine grained privilege management using PolicyKit, e.g. allowing all desktop user to query for updates without entering a password - Support for media changes during installation from DVD/CDROM - Support for debconf (Debian's package configuration system) - Support for attaching a terminal to the underlying dpkg call . This package contains the aptd script and all the data files required to run the daemon. Moreover it contains the aptdcon script, which is a command line client for aptdaemon. The API is not stable yet. Original-Maintainer: Julian Andres Klode <j...@debian.org> ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: apt 0.8.16~exp12ubuntu4 ProcVersionSignature: Ubuntu 3.2.0-18.28-virtual 3.2.9 Uname: Linux 3.2.0-18-virtual x86_64 ApportVersion: 1.94-0ubuntu1 Architecture: amd64 Date: Tue Mar 6 21:21:17 2012 Ec2AMI: ami-0400dd6d Ec2AMIManifest: (unknown) Ec2AvailabilityZone: us-east-1c Ec2InstanceType: m1.large Ec2Kernel: aki-825ea7eb Ec2Ramdisk: unavailable SourcePackage: apt UpgradeStatus: No upgrade log present (probably fresh install)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/948461 Title: apt-get hashsum/size mismatch because s3 mirrors don't support http pipelining correctly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/948461/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
