Red Hat Bugzilla – Bug 202956
wget fails to retry DNS resolution when temporary link failure
Last modified: 2009-03-26 09:20:53 EDT
Description of problem: wget fails with "Resolving xxx... failed: Temporary failure in name resolution" but although it is well described as being temporary (because it is) wget fails to retry the name resolution. Version-Release number of selected component (if applicable): wget-1.10.2-0.fc4 but probably others too. How reproducible: Always. Steps to Reproduce: 1. Start wget on a large file 2. Take down ethernet link then bring it back up 3. Actual results: wget often fails with above message Expected results: wget should retry. Additional info: When a link goes down then often DNS resolution will also go down temporarily. If wget is to attempt to do reliable fetches then it should allow for temporary DNS failure and try again after a suitable pause. Unfortunately wget doesn't try hard enough.
This report targets the FC3 or FC4 products, which have now been EOL'd. Could you please check that it still applies to a current Fedora release, and either update the target product or close it ? Thanks.
FC6 too
Fedora Core 4 is now completely unmaintained. These bugs can't be fixed in that version. If the issue still persists in current Fedora Core, please reopen. Thank you, and sorry about this.
Applicable to Fedora Core 6. Sorry about this. And I have already said this in comment #2 about! You aren't reading anything are you Matt!
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It's not at all clear to me what Wget "should" do in response to this situation. How long should it wait? If the DNS or link is down, how long might it be down? And, should Wget hold up downloads of other fetches in a recursive session? "Reliable fetches" with Wget, to me means that it can attempt to finish off a file when there is a sudden loss of connection, and that Wget can be used to continue an unfinished file from previous sessions. I don't believe it's Wget's responsibility to sit around and wait for temporary network failures to resolve themselves. That's what "wget -c" is for.
This message is a reminder that Fedora 8 is nearing its end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 8. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '8'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version prior to Fedora 8's end of life. Bug Reporter: Thank you for reporting this issue and we are sorry that we may not be able to fix it before Fedora 8 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora please change the 'version' of this bug to the applicable version. If you are unable to change the version, please add a comment here and someone will do it for you. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. The process we are following is described here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
(In reply to comment #6) > > How long should it wait? > As long the user wants, of course.
I'll close this as the upstream maintainer already expressed his opinion in comment #6 that a retry isn't wget's responsibility.