Fuse problems.

[spikebike]

I'm running ubuntu 14.04 LTS with "AgentVersion": "go-ipfs/0.3.8-dev".

Someone on #ipfs posted an xkcd archive and:

kona:/ipfs/QmPVP4sDre9rtYahGvcjv3Fqet3oQyqrH5xS33d4YBVFme/101 - Laser Scope$ time ls -al
ls: cannot access 101 - Laser Scope - alt.txt: No such file or directory
ls: cannot access 101 - Laser Scope - transcript.txt: No such file or directory
total 0
-????????? ? ?    ?        ?            ? 101 - Laser Scope - alt.txt
-r--r--r-- 0 bill bill 36009 Aug 30  1754 101 - Laser Scope.png
-????????? ? ?    ?        ?            ? 101 - Laser Scope - transcript.txt

real    2m0.011s
user    0m0.002s
sys 0m0.002s

Another example:
kona:/ipfs/QmPVP4sDre9rtYahGvcjv3Fqet3oQyqrH5xS33d4YBVFme$ ls -al
ls: cannot access 1056 - Felidae: No such file or directory
ls: cannot access 1057 - Klout: No such file or directory
ls: cannot access 1058 - Old-Timers: No such file or directory
ls: cannot access 1059 - Bel-Air: No such file or directory
ls: cannot access 106 - Wright Brothers: No such file or directory
ls: cannot access 1060 - Crowdsourcing: No such file or directory
ls: cannot access 1061 - EST: No such file or directory
[snip 100s of lines]
otal 0
dr-xr-xr-x 0 bill bill 0 Aug 30  1754 1000 - 1000 Comics
dr-xr-xr-x 0 bill bill 0 Aug 30  1754 1001 - AAAAAA
dr-xr-xr-x 0 bill bill 0 Aug 30  1754 1002 - Game AIs
dr-xr-xr-x 0 bill bill 0 Aug 30  1754 1003 - Adam and Eve
dr-xr-xr-x 0 bill bill 0 Aug 30  1754 1004 - Batman
dr-xr-xr-x 0 bill bill 0 Aug 30  1754 1005 - SOPA
dr-xr-xr-x 0 bill bill 0 Aug 30  1754 1006 - Sloppier Than Fiction
[snip dozens of lines]
-????????? ? ?    ?    ?            ? 1056 - Felidae
-????????? ? ?    ?    ?            ? 1057 - Klout
-????????? ? ?    ?    ?            ? 1058 - Old-Timers
-????????? ? ?    ?    ?            ? 1059 - Bel-Air
dr-xr-xr-x 0 bill bill 0 Aug 30  1754 105 - Parallel Universe
-????????? ? ?    ?    ?            ? 1060 - Crowdsourcing
-????????? ? ?    ?    ?            ? 1061 - EST
-????????? ? ?    ?    ?            ? 1062 - Budget News
-????????? ? ?    ?    ?            ? 1063 - Kill Hitler
-????????? ? ?    ?    ?            ? 1064 - Front Door
-????????? ? ?    ?    ?            ? 1065 - Shoes
-????????? ? ?    ?    ?            ? 1066 - Laundry
-????????? ? ?    ?    ?            ? 1067 - Pressures
-????????? ? ?    ?    ?            ? 1068 - Swiftkey
-????????? ? ?    ?    ?            ? 1069 - Alphabet
-????????? ? ?    ?    ?            ? 106 - Wright Brothe

kona:/ipfs/QmPVP4sDre9rtYahGvcjv3Fqet3oQyqrH5xS33d4YBVFme$ time cd "958 - Hotels"
bash: cd: 958 - Hotels: No such file or directory
real    3m0.006s
user    0m0.000s
sys 0m0.000s
kona:/ipfs/QmPVP4sDre9rtYahGvcjv3Fqet3oQyqrH5xS33d4YBVFme$ 
kona:/ipfs/QmPVP4sDre9rtYahGvcjv3Fqet3oQyqrH5xS33d4YBVFme$ ls | grep 958
958 - Hotels

[whyrusleeping]

It appears that the issue here is that the fuse interface doesnt handle timeouts very well. I'm not really sure what the best way to go about this is... @tv42 any advice?

[tv42]

@whyrusleeping What do you mean by timeouts; what do you do when you see a timeout?

You have two choices:

1. Only time out when the file system client asks for it (e.g. user hits control-C); you'll see the fuse request context be cancelled.
2. Pick an error, return it, and live with it. ESTALE comes to mind.

Option 1 is better, because it doesn't cause spurious errors.