[Xapian-discuss] xapian-compact and "Bad line 1 in stub database file"
asjo at koldfront.dk
Wed Oct 8 19:39:16 BST 2008
I have a xapian index on a test-machine that has been used quite a bit.
The size of the index on disk is 2.4GB, so I thought I'd run
xapian-compact on it, to make it more likely to fit in RAM.
It went like this:
$ time xapian-compact index index.compact
postlist: Reduced by 50.0176% 387080K (773888K -> 386808K)
record: Reduced by 40.8424% 5120K (12536K -> 7416K)
termlist: Reduced by 42.869% 62064K (144776K -> 82712K)
position: Reduced by 44.1926% 651760K (1474816K -> 823056K)
value: Reduced by 47.2156% 6376K (13504K -> 7128K)
spelling: Size unchanged (0K)
synonym: Size unchanged (0K)
A nice reduction to 1.3GB.
But when I try to use the new index in place of the non-compact one, it
doesn't work, the application says:
Exception: Bad line 1 in stub database file `index.compact/postlist.baseA' at
/usr/lib/perl5/Search/Xapian/Database.pm line 48
If I look at the file-size:
-rw-rw-r-- 1 adsj staff 13 2008-10-08 20:01 index.compact/postlist.baseA
compared to the original; they differ in size¹:
-rw-r--r-- 1 adsj staff 12084 2008-10-08 18:02 index/postlist.baseA
But I haven't tried to look into it further, I hope you can give me a
hint of what I am doing wrong, or if I've hit a bug.
I am using Xapian 1.0.5 on an Ubuntu hardy amd64 machine. I briefly
scanned the NEWS-file, but didn't find anything sounding like this
problem; I will of course try upgrading to the latest version if it is
likely to help.
I closed down my indexing process while compacting, so there was nothing
to "interfere", as far as I could see.
¹ The compact one is so small, that I might as well include it here:
$ hexdump -C postlist.baseA
00000000 00 05 80 40 00 00 00 00 00 01 01 00 00 |... at .........|
"On the quiet side. Somewhat peculiar. A good Adam Sjøgren
companion, in a weird sort of way." asjo at koldfront.dk
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