(2010-09-24) Bluehost Hiccup Kills Moin

Blue Host outage, now my RecentChanges and WikiLog view for my public WikiLog fails with error msg execution failed [decimal] (see also the log) (though RecentChanges is fine for my other MoinMoin spaces on same server).

Check MoinMoin log

• error comes in /MoinMoin/logfile/editlog.parser() that parses the edit log file: result.ed_time_usecs = long(result.ed_time_usecs or '0') - the error message is Unicode Encode Error: 'decimal' codec can't encode character u'\x00' in position 0: invalid decimal Unicode string

• log at edit-log - don't see anything obviously wrong.

• insert logging line in parser() to show line then hit RecentChanges - last line logged is 1278700959000000 00000001 SAVENEW DVR 76.245.240.183 76-245-240-183.lightspeed.cicril.sbcglobal.net

• this is very weird because if I head editlog the first line has timestamp 1278711272000000 - which is later than the timestamp logged by the parser!

• I had rolled over the edit-log after doing the mass-creation of the space so that RecentChanges wouldn't have all those thousands of entries. So there's an edit-log_20100709 that was the rolled over file - and that file includes the line that's getting logged!

• (added more logging lines in parser())

• now it seems like line is null or something - so getting decimal failure, but I think it's for a different reason.

  • and just happened to try editing page Fo Cus (it let me view it fine) - and that generated a 500 error! {{{ File "/home/teamflux/moin-1.9.2/MoinMoin/Page Editor.py", line 848, in _save_draft cache_data = cache.content() File "/home/teamflux/moin-1.9.2/MoinMoin/caching.py", line 285, in content raise [Cache Error] Cache Error: 'utf8' codec can't decode byte 0x80 in position 4067: unexpected code byte }}}

• editing (like RecentChanges) still works in other spaces

• add logging line to see edit-log filename - shows correct path/filename. So remove that line.

• seems like this error comes right after reading another line which gets handled fine. Find that line's position in edit-log, and everything around it looks normal

• could this be a line-ending issue?

• hmm, even though logging makes line look empty, logging len(line) gives 154 (in 1 field)

• let's try to route around this case

  • if len(fields) <=1 then return None (instead of result)

• RecentChanges now works!

• but saving an Edit still dies

• check code, see that it's the cache/wiki data - go into that data/cache/wiki/drafts/ subdirectory, find a single file, delete it. Now can edit!

• except having saved a couple pages, I now hit RecentChanges, and get the same old error again!

• seems like issue comes in line for editing Fo Cus, which was 1 of 3 pages I just did. But logging seems to be splitting fields fine

• duh, friend found documentation <http://moinmo.in/MoinMoinBugs/Unicode Encode Error%20u'/x00'>

• I opened edit-log in vi again, found those crazy characters, removed them. Now RecentChanges all good again!

  • friend recommends running edit-log file through strings command as simpler future cleanup.