Re: mkcephfs 0.20 failure on debian: FAILED assert(r == 0)

[Jean-Adrien <adv1@jeanjean.ch>]

Thomas Mueller <thomas <at> chaschperli.ch> writes:

> 
> Hi
> 
> I wanted to do some testing. but i failed on mkcephfs.  see mkcephfs 
> output below. 
>  **          testing and review.  Do not trust it with important 
> data.       **
> os/FileJournal.cc: In function 'int FileJournal::_open(bool, bool)':
> os/FileJournal.cc:74: FAILED assert(r == 0)
>  1: (FileJournal::create()+0x7f) [0x55725f]
>  2: (FileStore::mkjournal()+0x74) [0x542f04]
>  3: (FileStore::mkfs()+0x4c9) [0x540dd9]
>  4: (OSD::mkfs(char const*, char const*, ceph_fsid, int)+0x4a) [0x4c2dca]
>  5: (main()+0x751) [0x4585e1]
>  6: (__libc_start_main()+0xe6) [0x7fc412c811a6]
>  7: (std::ios_base::Init::~Init()+0x61) [0x457be9]
>  NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed 
> to interpret this.
> terminate called after throwing an instance of 'ceph::FailedAssertion*'
> /usr/lib/ceph/ceph_common.sh: line 95:  8680 Aborted                 
> (core dumped) bash -c "$1"
> failed: '/usr/bin/cosd -c /etc/ceph/ceph.conf --monmap /tmp/monmap.8485 -
> i 1 --mkfs --osd-data /data/osd1'


Hi,

I try to setup a little test cluster using kvm, and I have exactly the same
problem.
Moreover, I notice that when I want to delete the data created in the btrfs
partition it is not possible to remove the current directory, even if it is
empty:

root@cods-1:/mnt/btrfs/data# rm -rf osd0/
rm: cannot remove directory `osd0/current': Directory not empty

The only way is to reformat the partition (mkfs.btrfs /dev/sdb1)

But the next time I try to make the fs I have the same problem 
./mkcephfs -c ceph.conf -a -k /var/ceph-data/keyring.bin

I tried the --mkbtrfs option too, but I have the same result.
Did you made the same observations ? Any clue ?

Have a nice day

-- Jean-Adrien