Re: CephFS Attributes Question Marks

[John Spray <jspray@xxxxxxxxxx>]

Ah, this is a nice clear log!

I've described the bug here:

http://tracker.ceph.com/issues/13271

In the short term, you may be able to mitigate this by increasing client_cache_size (on the client) if your RAM allows it.

John

On Tue, Sep 29, 2015 at 12:58 AM, Scottix <scottix@xxxxxxxxx> wrote:

I know this is an old one but I got a log in ceph-fuse for it.

I got this on OpenSuse 12.1

3.1.10-1.29-desktop

Using ceph-fuse

ceph version 0.94.3 (95cefea9fd9ab740263bf8bb4796fd864d9afe2b)

I am running an rsync in the background and then doing a simple ls -la so the log is large.

I am guessing this is the problem. The file is there and if I list the directory again it shows up properly.

2015-09-28 16:34:21.548631 7f372effd700  3 client.28239198 ll_lookup 0x7f370d1b1c50 data.2015-08-23_00-00-00.csv.bz2

2015-09-28 16:34:21.548635 7f372effd700 10 client.28239198 _lookup concluded ENOENT locally for 100009d72a1.head(ref=4 ll_ref=5 cap_refs={} open={} mode=42775 size=0/0 mtime=2015-09-28 05:57:57.259306 caps=pAsLsXsFs(0=pAsLsXsFs) COMPLETE parents=0x7f3732ff97c0 0x7f370d1b1c50) dn 'data.2015-08-23_00-00-00.csv.bz2'

It seems to show up more if multiple things are access the ceph mount, just my observations.

Best,

Scott

On Tue, Mar 3, 2015 at 3:05 PM Scottix <scottix@xxxxxxxxx> wrote:

Ya we are not at 0.87.1 yet, possibly tomorrow. I'll let you know if it still reports the same.

Thanks John,

--Scottie

On Tue, Mar 3, 2015 at 2:57 PM John Spray <john.spray@xxxxxxxxxx> wrote:

On 03/03/2015 22:35, Scottix wrote:
> I was testing a little bit more and decided to run the cephfs-journal-tool
>
> I ran across some errors
>
> $ cephfs-journal-tool journal inspect
> 2015-03-03 14:18:54.453981 7f8e29f86780 -1 Bad entry start ptr
> (0x2aeb0000f6) at 0x2aeb32279b
> 2015-03-03 14:18:54.539060 7f8e29f86780 -1 Bad entry start ptr
> (0x2aeb000733) at 0x2aeb322dd8
> 2015-03-03 14:18:54.584539 7f8e29f86780 -1 Bad entry start ptr
> (0x2aeb000d70) at 0x2aeb323415
> 2015-03-03 14:18:54.669991 7f8e29f86780 -1 Bad entry start ptr
> (0x2aeb0013ad) at 0x2aeb323a52
> 2015-03-03 14:18:54.707724 7f8e29f86780 -1 Bad entry start ptr
> (0x2aeb0019ea) at 0x2aeb32408f
> Overall journal integrity: DAMAGED

I expect this is http://tracker.ceph.com/issues/9977, which is fixed in
master.

You are in *very* bleeding edge territory here, and I'd suggest using
the latest development release if you want to experiment with the latest
CephFS tooling.

Cheers,
John

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