#562: cabal-install update fails going through a HTTP proxy (but not consistently) ----------------------------+----------------------------------------------- Reporter: acid2 | Owner: Type: defect | Status: new Priority: normal | Milestone: Component: Cabal library | Version: 1.6.0.1 Severity: normal | Keywords: Difficulty: unknown | Ghcversion: Platform: | ----------------------------+----------------------------------------------- I have installed Cabal, cabal-install and HTTP all from source on my Arch Linux machine, which has GHC 6.10.3 installed. When running {{{cabal update}}} this will occasionally work, but most often fails with the error: {{{cabal: user error (Codec.Compression.Zlib: premature end of compressed stream)}}} In this case, inspecting ~/.cabal/packages/hackage.haskell.org/00-index.tar.gz shows a file size that varies around 1-15K, rather than the expected ~900K. Attached are logs of `cabal-update` failing, and working: {{{ Downloading the latest package list from hackage.haskell.org Sending: GET http://hackage.haskell.org/packages/archive/00-index.tar.gz HTTP/1.1 User-Agent: cabal-install/0.6.2 Host: hackage.haskell.org proxy uri host: wwwcache.lancs.ac.uk, port: :8080 Creating new connection to wwwcache.lancs.ac.uk:8080 Received: HTTP/1.0 200 OK Date: Tue, 09 Jun 2009 13:50:46 GMT Server: Apache/2.2.3 (Debian) Last-Modified: Tue, 09 Jun 2009 09:53:44 GMT ETag: "3890c4-f8d7c-55909a00" Accept-Ranges: bytes Content-Length: 1019260 Content-Type: application/x-tar Content-Encoding: x-gzip Age: 854 X-Cache: HIT from wwwcache.lancs.ac.uk X-Cache-Lookup: HIT from wwwcache.lancs.ac.uk:8080 X-Cache: MISS from wwwcache.lancs.ac.uk X-Cache-Lookup: MISS from wwwcache.lancs.ac.uk:8080 Via: 1.0 wwwcache3.lancs.ac.uk:8080 (squid/2.6.STABLE22), 1.0 wwwcache1.lancs.ac.uk:8080 (squid/2.7.STABLE4) Connection: close Downloaded to /home/ollie/.cabal/packages/hackage.haskell.org/00-index.tar.gz }}} {{{ Downloading the latest package list from hackage.haskell.org Sending: GET http://hackage.haskell.org/packages/archive/00-index.tar.gz HTTP/1.1 User-Agent: cabal-install/0.6.2 Host: hackage.haskell.org proxy uri host: wwwcache.lancs.ac.uk, port: :8080 Creating new connection to wwwcache.lancs.ac.uk:8080 Received: HTTP/1.0 200 OK Date: Tue, 09 Jun 2009 13:50:46 GMT Server: Apache/2.2.3 (Debian) Last-Modified: Tue, 09 Jun 2009 09:53:44 GMT ETag: "3890c4-f8d7c-55909a00" Accept-Ranges: bytes Content-Length: 1019260 Content-Type: application/x-tar Content-Encoding: x-gzip Age: 875 X-Cache: HIT from wwwcache.lancs.ac.uk X-Cache-Lookup: HIT from wwwcache.lancs.ac.uk:8080 Via: 1.0 wwwcache3.lancs.ac.uk:8080 (squid/2.6.STABLE22) Proxy-Connection: close Downloaded to /home/ollie/.cabal/packages/hackage.haskell.org/00-index.tar.gz Reading available packages... }}} I was also asked to try running wget in verbose mode, this is the output: {{{ --2009-06-09 16:17:00-- http://hackage.haskell.org/packages/archive/00-index.tar.gz Resolving wwwcache.lancs.ac.uk... 194.80.32.11, 194.80.32.8, 194.80.32.9, ... Connecting to wwwcache.lancs.ac.uk|194.80.32.11|:8080... connected. Proxy request sent, awaiting response... HTTP/1.0 200 OK Date: Tue, 09 Jun 2009 13:50:46 GMT Server: Apache/2.2.3 (Debian) Last-Modified: Tue, 09 Jun 2009 09:53:44 GMT ETag: "3890c4-f8d7c-55909a00" Accept-Ranges: bytes Content-Length: 1019260 Content-Type: application/x-tar Content-Encoding: x-gzip Age: 1558 X-Cache: HIT from wwwcache.lancs.ac.uk X-Cache-Lookup: HIT from wwwcache.lancs.ac.uk:8080 Via: 1.0 wwwcache3.lancs.ac.uk:8080 (squid/2.6.STABLE22) Proxy-Connection: close Length: 1019260 (995K) [application/x-tar] Saving to: `00-index.tar.gz.2' 100%[===================================================================================================>] 1,019,260 --.-K/s in 0.09s 2009-06-09 16:17:00 (11.1 MB/s) - `00-index.tar.gz.2' saved [1019260/1019260] }}} -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/562 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects