On Jun 12, 10:14Â am, [email protected] (Venkatesh Srinivas) wrote:
> > % unvac -t vac:8ab4746b0fb06da481158624afb7509cefc35e07
> > unvac: vacfsopen: read too small 1: asked for 0 need at least 300
>
> > %venti/copy 'tcp!localhost!17034' 'tcp!localhost!17034'
> > vac:8ab4746b0fb06da481158624afb7509cefc35e07
> >venti/copy: reading block 0000000000000000000000000000000000000000
> > (type 16): read asked for 0000000000000000000000000000000000000000 got
> > da39a3ee5e6b4b0d3255bfef95601890afd80709
>
> I think you've run into the same bug I did in
> February:http://9fans.net/archive/2009/02/198
> Or at least a close cousin.
>
> da39a3ee5e6b4b0d3255bfef95601890afd80709 is the sha1sum of the empty
> string; somehow someone is looking for the all-zero score instead...
>
> -- vs
Hello,
It seems like I've just hit the same issue:
lejat...@oenone:~/tmp$ unvac -h localhost ../work/venti/20090605.vac
unvac: vacfsopen: read too small 1: asked for 0 need at least 300
At first I thought the index was corrupted because I had to hard
reboot that
machine while venti was running.
checkindex -f detects some errors but does not seem to be fixing them:
lejat...@oenone:~/work/venti$ /usr/local/plan9/bin/venti/checkindex -
f venti.conf /home/lejatorn/tmpisect
checkindex: building entry list
constructing entry list
arena arenas00: 2554 entries
[arenas01] sorting 2554 entries
checkindex: checking 2554 entries at 16777216
# diff actual correct
isect block 0x184000
> 04665caf88387b2a9f925ca5d958d2cfd5748d3c 10067426 0 724 1
isect block 0x1ae000
> 0558ba6343c0256c2daa851bb81dbd7fb2a2b9e7 10069700 0 2063 2
isect block 0x4b6000
> 16f19e6591bfe468f489c88fe0c6cf607c107c5c 10068499 8 1840 3
isect block 0x612000
> 1ecbb5af8ee870174e099e5c9bc84c944beec01f 10064704 0 744 1
isect block 0x65c000
> 207f10e6f8a66dab242b1f0d8226b0a18436ffcd 10067090 8 440 1
isect block 0xa7e000
> 386a02c7fe558550107853d9788ad72f2f9053f2 10068283 8 80 1
isect block 0xada000
> 3a7dc491bf6078e9d16c3fd6bad14d638a709c85 10070360 8 120 1
isect block 0xfae000
> 5682a0fb0a24fbf36bfb4308865ab45aa6bf3b15 10067991 0 835 1
isect block 0x127a000
> 66b430198ea34f4e734bde565804bd0be3f23dfd 10064925 8 240 1
isect block 0x147c000
> 7254aa4af20a94ea73ee46b9b7a419129131c0ad 10070255 8 80 1
isect block 0x1584000
> 784875610550ac6a10111c6d3266056f8e1c9171 10066161 0 740 1
isect block 0x160e000
> 7b6d56b5bf715fe3972bb0f614621f0cc90225c3 10067646 8 440 1
isect block 0x1676000
> 7dc3a7c680e0e8c1c61ce446cd645f57a619b409 10065348 0 1587 1
isect block 0x1774000
> 8384ca87c033a4c64e14894202d3570491f00f8d 10066882 0 678 1
isect block 0x186e000
> 892c639a60cdad7409482362d340afd5b7c7cd5e 10066385 0 813 1
isect block 0x1b36000
> 994fba051c5c1895417d15e993e1f4e4905df20d 10065818 0 477 1
isect block 0x1c36000
> 9f1b4cc34e917fc7a81b7bc35960e2e7467a8c19 10065959 0 673 1
isect block 0x1d0e000
> a3fde373beeb7d74007788fa2654436a7f260e0b 10068387 0 403 1
isect block 0x1fd2000
> b402d8db94260e233c6c0b7e4282dd0e77df9c87 10066647 0 811 1
isect block 0x2308000
> c6a3e8b8b8b181dfc25ce22df91cadb2a3b87f4b 10065133 0 706 1
isect block 0x2a82000
> f1ee1f851ab24bb5a2e7bb5ae7aa3a78c904e221 10070491 16 300 1
checkindex: 0 spurious entries, 21 missing, 0 wrong
bloom filter: correct
/usr/local/plan9/bin/venti/checkindex: errors found
Is there any way I can recover any data at all?
Would rebuilding unvac from an older pull of plan9port help ?
Cheers,
Mathieu
