http://bugzilla.novell.com/show_bug.cgi?id=602434 http://bugzilla.novell.com/show_bug.cgi?id=602434#c1 --- Comment #1 from Peter Poeml 2010-05-04 15:37:17 UTC --- (In reply to comment #0)

After some investigations 1. If the mirrordb has no mirrors for the file the <resources> section is empty.

Not in your case. That's the case *only* if a client tries to access a metalink by appending .metalink to an URL (which aria2c does not), *and* there are no fallback mirrors configured (which you could do, if you'd care). aria2c & MirrorBrain negotiats the type of the response transparently, which means that (if there are no mirrors) aria2c simply receives the actual content instead of a metalink. (That's how it's supposed to work anyway; if you see something different, please let me know!)

2. aria2c handles that situation in an unexpected way:

If you are really sure about that (are you?): A metalink without resources might be a good reason to reject it. Or just to ignore it. On the other hand, MirrorBrain could return a 404, maybe. Anyway, it seems that you need to debug a different problem. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=602434 http://bugzilla.novell.com/show_bug.cgi?id=602434#c3 --- Comment #3 from Michael Schröder 2010-05-04 17:41:42 UTC --- This is about mirrorbrain, thus directed at Peter. Pascal, please ignore ;-) The error log contains some suspicious lines: [mod_mirrorbrain] could not chose a server. Shouldn't have happened. (please fix the typo, it should be "choose") Looking at the code it seems to me that some mirror was found, but it didn't match any the 'if' statements, and thus could not be classified. As the comment says that should not happen. ;-) Specifying a fallback would not help in this (very rare) case. (Btw, it's strange that a curl <filename>.metalink returns the file content if no mirror is found. You should handle this somewhat different.) -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=602434 http://bugzilla.novell.com/show_bug.cgi?id=602434#c5 Michael Schröder changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|Major |Normal --- Comment #5 from Michael Schröder 2010-05-05 14:20:28 UTC --- (Simple workaround added, deployed to pontifex. So it's no longer a critical issue.) -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=602434 http://bugzilla.novell.com/show_bug.cgi?id=602434#c Peter Poeml changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |mls@novell.com -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=602434 http://bugzilla.novell.com/show_bug.cgi?id=602434#c8 Peter Poeml changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |mls@novell.com --- Comment #8 from Peter Poeml 2010-05-06 14:26:27 UTC --- The question is why that happens. To find out, I need details. Could you provide the requested information? -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=602434 http://bugzilla.novell.com/show_bug.cgi?id=602434#c10 --- Comment #10 from Marcus Rückert 2010-05-06 15:06:42 UTC --- steps to reproduce: 1. add a new file to the tree 2. add the file to the DB 3. file has no mirrors yet 4. try to download the metalink file for it 5. you will see the <resources> section is empty. does that help? we cant really reproduce it on download.o.o as it is kind of a race situation and i dont want to fiddle around with that. but the steps should help to reproduce it. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=602434 https://bugzilla.novell.com/show_bug.cgi?id=602434#c12 Peter Poeml changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED --- Comment #12 from Peter Poeml 2010-09-01 15:19:54 UTC --- I see. This can indeed happen when there is only a region_only mirror from a different region, and the resource is negotiated to be represented by a metalink. (Not for a metalink requested explicitely by .meta4 or .metalink extension.) I can easily reproduce that. Thanks for the details, and for the workaround you added. Since r8011 (and later changed in r8086), this case is handled: case META4: case METALINK: if (meta_negotiated) { debugLog(r, cfg, "would have to send empty metalink... -> deliver directly"); return DECLINED; } else { debugLog(r, cfg, "would have to send empty metalink... -> 404"); ap_log_rerror(APLOG_MARK, APLOG_WARNING, 0, r, "[mod_mirrorbrain] Can't send metalink for %s (no mirrors)", filename); return HTTP_NOT_FOUND; } Other representations (e.g., triggered by appending .sha1 extension, or torrents) don't depend on mirrors, so they can be generated regardless. The fix will be in 2.13.0. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.