[ceph-users] cephfs issue with moving files between data pools gives Input/output error

Gregory Farnum gfarnum at redhat.com
Mon Oct 1 12:27:51 PDT 2018


Moving a file into a directory with a different layout does not, and is not
intended to, copy the underlying file data into a different pool with the
new layout. If you want to do that you have to make it happen yourself by
doing a copy.

On Mon, Oct 1, 2018 at 12:16 PM Marc Roos <M.Roos at f1-outsourcing.eu> wrote:

>
> I will explain the test again, I think you might have some bug in your
> cephfs copy between data pools.
>
> c04 has mounted the root cephfs
> /a (has data pool a, ec21)
> /test (has data pool b, r1)
>
> test2 has mounted
> /m  (nfs mount of cephfs /a)
> /m2 (cephfs mount of /a)
>
> Creating the test file.
> [root at c04 test]# echo asdfasdfasdfasdfasdfasdfasdfasdfasdf >
> testfile.txt
>
> Then I am moving on c04 the test file from the test folder(pool b) to
> the a folder/pool
>
> Now on test2
> [root at test2 m]# ls -arlt
> -rw-r--r--  1 nobody nobody            21 Oct  1 20:48 r1.txt
> -rw-r--r--  1 nobody nobody            21 Oct  1 20:49 r1-copy.txt
> -rw-r--r--  1 nobody nobody            37 Oct  1 21:02 testfile.txt
>
> [root at test2 /]# cat /mnt/m/testfile.txt
> cat: /mnt/m/old/testfile.txt: Input/output error
>
> [root at test2 /]# cat /mnt/m2/testfile.txt
> cat: /mnt/m2/old/testfile.txt: Operation not permitted
>
> Now I am creating a copy of the test file in the same directory back on
> c04
>
> [root at c04 a]# cp testfile.txt testfile-copy.txt
> [root at c04 a]# ls -alrt
> -rw-r--r-- 1 root root         21 Oct  1 20:49 r1-copy.txt
> -rw-r--r-- 1 root root         37 Oct  1 21:02 testfile.txt
> -rw-r--r-- 1 root root         37 Oct  1 21:07 testfile-copy.txt
>
> Now I trying to access the copy of testfile.txt back on test2 (without
> unmounting, or changing permissions)
>
> [root at test2 /]# cat /mnt/m/testfile-copy.txt
> asdfasdfasdfasdfasdfasdfasdfasdfasdf
> [root at test2 /]# cat /mnt/m2/testfile-copy.txt
> asdfasdfasdfasdfasdfasdfasdfasdfasdf
>
>
>
>
>
>
>
> -----Original Message-----
> From: Yan, Zheng [mailto:ukernel at gmail.com]
> Sent: zaterdag 29 september 2018 6:55
> To: Marc Roos
> Subject: Re: [ceph-users] cephfs issue with moving files between data
> pools gives Input/output error
>
> check_pool_perm on pool 30 ns  need Fr, but no read perm
>
> client does not permission to read the pool.  ceph-fuse did return EPERM
> for the kernel readpage request.  But kernel return -EIO for any
> readpage error.
> On Fri, Sep 28, 2018 at 10:09 PM Marc Roos <M.Roos at f1-outsourcing.eu>
> wrote:
> >
> >
> > Is this useful? I think this is the section of the client log when
> >
> > [@test2 m]$ cat out6
> > cat: out6: Input/output error
> >
> > 2018-09-28 16:03:39.082200 7f1ad01f1700 10 client.3246756 fill_statx
> > on 0x100010943bc snap/devhead mode 040557 mtime 2018-09-28
> > 14:49:35.349370 ctime 2018-09-28 14:49:35.349370
> > 2018-09-28 16:03:39.082223 7f1ad01f1700  3 client.3246756 ll_getattrx
> > 0x100010943bc.head = 0
> > 2018-09-28 16:03:39.082727 7f1ae813f700 10 client.3246756 fill_statx
> > on
> > 0x10001698ac5 snap/devhead mode 0100644 mtime 2018-09-28
> > 14:45:50.323273 ctime 2018-09-28 14:47:47.028679
> > 2018-09-28 16:03:39.082737 7f1ae813f700  3 client.3246756 ll_getattrx
> > 0x10001698ac5.head = 0
> > 2018-09-28 16:03:39.083149 7f1ac07f8700  3 client.3246756 ll_open
> > 0x10001698ac5.head 0
> > 2018-09-28 16:03:39.083160 7f1ac07f8700 10 client.3246756 _getattr
> > mask As issued=1
> > 2018-09-28 16:03:39.083165 7f1ac07f8700  3 client.3246756 may_open
> > 0x7f1a7810ad00 = 0
> > 2018-09-28 16:03:39.083169 7f1ac07f8700 10 break_deleg: breaking
> > delegs on 0x10001698ac5.head(faked_ino=0 ref=2 ll_ref=1 cap_refs={}
> > open={1=1}
> > mode=100644 size=17/0 nlink=1 mtime=2018-09-28 14:45:50.323273
> > caps=pAsLsXsFs(0=pAsLsXsFs) objectset[0x10001698ac5 ts 0/0 objects 0
> > dirty_or_tx 0] parents=0x7f1a780f1dd0 0x7f1a7810ad00)
> > 2018-09-28 16:03:39.083183 7f1ac07f8700 10 delegations_broken:
> > delegations empty on 0x10001698ac5.head(faked_ino=0 ref=2 ll_ref=1
> > cap_refs={} open={1=1} mode=100644 size=17/0 nlink=1 mtime=2018-09-28
> > 14:45:50.323273 caps=pAsLsXsFs(0=pAsLsXsFs) objectset[0x10001698ac5 ts
>
> > 0/0 objects 0 dirty_or_tx 0] parents=0x7f1a780f1dd0 0x7f1a7810ad00)
> > 2018-09-28 16:03:39.083198 7f1ac07f8700 10 client.3246756
> > choose_target_mds from caps on inode 0x10001698ac5.head(faked_ino=0
> > ref=3 ll_ref=1 cap_refs={} open={1=1} mode=100644 size=17/0 nlink=1
> > mtime=2018-09-28 14:45:50.323273 caps=pAsLsXsFs(0=pAsLsXsFs)
> > objectset[0x10001698ac5 ts 0/0 objects 0 dirty_or_tx 0]
> > parents=0x7f1a780f1dd0 0x7f1a7810ad00)
> > 2018-09-28 16:03:39.083209 7f1ac07f8700 10 client.3246756 send_request
>
> > rebuilding request 1911 for mds.0
> > 2018-09-28 16:03:39.083218 7f1ac07f8700 10 client.3246756 send_request
> > client_request(unknown.0:1911 open #0x10001698ac5 2018-09-28
> > 16:03:39.083194 caller_uid=501, caller_gid=501{501,}) v4 to mds.0
> > 2018-09-28 16:03:39.084088 7f1a82ffd700  5 client.3246756
> > set_cap_epoch_barrier epoch = 24093
> > 2018-09-28 16:03:39.084097 7f1a82ffd700 10 client.3246756  mds.0 seq
> > now
> > 1
> > 2018-09-28 16:03:39.084108 7f1a82ffd700  5 client.3246756
> > handle_cap_grant on in 0x10001698ac5 mds.0 seq 7 caps now pAsLsXsFscr
> > was pAsLsXsFs
> > 2018-09-28 16:03:39.084118 7f1a82ffd700 10 client.3246756
> > update_inode_file_time 0x10001698ac5.head(faked_ino=0 ref=3 ll_ref=1
> > cap_refs={} open={1=1} mode=100644 size=17/0 nlink=1 mtime=2018-09-28
> > 14:45:50.323273 caps=pAsLsXsFs(0=pAsLsXsFs) objectset[0x10001698ac5 ts
>
> > 0/0 objects 0 dirty_or_tx 0] parents=0x7f1a780f1dd0 0x7f1a7810ad00)
> > pAsLsXsFs ctime 2018-09-28 14:47:47.028679 mtime 2018-09-28
> > 14:45:50.323273
> > 2018-09-28 16:03:39.084133 7f1a82ffd700 10 client.3246756   grant, new
> > caps are Fcr
> > 2018-09-28 16:03:39.084143 7f1a82ffd700 10 client.3246756 insert_trace
>
> > from 2018-09-28 16:03:39.083217 mds.0 is_target=1 is_dentry=0
> > 2018-09-28 16:03:39.084147 7f1a82ffd700 10 client.3246756  features
> > 0x3ffddff8eea4fffb
> > 2018-09-28 16:03:39.084148 7f1a82ffd700 10 client.3246756
> > update_snap_trace len 48
> > 2018-09-28 16:03:39.084181 7f1a82ffd700 10 client.3246756
> > update_snap_trace snaprealm(0x1 nref=755 c=0 seq=1 parent=0x0
> > my_snaps=[] cached_snapc=1=[]) seq 1 <= 1 and same parent, SKIPPING
> > 2018-09-28 16:03:39.084186 7f1a82ffd700 10 client.3246756  hrm
> > is_target=1 is_dentry=0
> > 2018-09-28 16:03:39.084195 7f1a82ffd700 10 client.3246756
> > add_update_cap issued pAsLsXsFscr -> pAsLsXsFscr from mds.0 on
> > 0x10001698ac5.head(faked_ino=0 ref=3 ll_ref=1 cap_refs={} open={1=1}
> > mode=100644 size=17/0 nlink=1 mtime=2018-09-28 14:45:50.323273
> > caps=pAsLsXsFscr(0=pAsLsXsFscr) objectset[0x10001698ac5 ts 0/0 objects
>
> > 0 dirty_or_tx 0] parents=0x7f1a780f1dd0 0x7f1a7810ad00)
> > 2018-09-28 16:03:39.084268 7f1ac07f8700 10 client.3246756 _create_fh
> > 0x10001698ac5 mode 1
> > 2018-09-28 16:03:39.084280 7f1ac07f8700  3 client.3246756 ll_open
> > 0x10001698ac5.head 0 = 0 (0x7f1a24028e10)
> > 2018-09-28 16:03:39.084373 7f1a82ffd700 10 client.3246756 put_inode on
>
> > 0x10001698ac5.head(faked_ino=0 ref=5 ll_ref=1 cap_refs={} open={1=1}
> > mode=100644 size=17/0 nlink=1 mtime=2018-09-28 14:45:50.323273
> > caps=pAsLsXsFscr(0=pAsLsXsFscr) objectset[0x10001698ac5 ts 0/0 objects
>
> > 0 dirty_or_tx 0] parents=0x7f1a780f1dd0 0x7f1a7810ad00)
> > 2018-09-28 16:03:39.084392 7f1a82ffd700 10 client.3246756 put_inode on
>
> > 0x10001698ac5.head(faked_ino=0 ref=4 ll_ref=1 cap_refs={} open={1=1}
> > mode=100644 size=17/0 nlink=1 mtime=2018-09-28 14:45:50.323273
> > caps=pAsLsXsFscr(0=pAsLsXsFscr) objectset[0x10001698ac5 ts 0/0 objects
>
> > 0 dirty_or_tx 0] parents=0x7f1a780f1dd0 0x7f1a7810ad00)
> > 2018-09-28 16:03:39.084899 7f1af0161700  3 client.3246756 ll_read
> > 0x7f1a24028e10 0x10001698ac5  0~17
> > 2018-09-28 16:03:39.084911 7f1af0161700 10 client.3246756
> > check_pool_perm on pool 30 ns  need Fr, but no read perm
> > 2018-09-28 16:03:39.086697 7f1ac02ba700  3 client.3246756 ll_release
> > (fh)0x7f1a24028e10 0x10001698ac5
> > 2018-09-28 16:03:39.086707 7f1ac02ba700  8 client.3246756 _release_fh
> > 0x7f1a24028e10 mode 1 on 0x10001698ac5.head(faked_ino=0 ref=3 ll_ref=1
>
> > cap_refs={} open={1=1} mode=100644 size=17/0 nlink=1 mtime=2018-09-28
> > 14:45:50.323273 caps=pAsLsXsFscr(0=pAsLsXsFscr)
> > objectset[0x10001698ac5 ts 0/0 objects 0 dirty_or_tx 0]
> > parents=0x7f1a780f1dd0 0x7f1a7810ad00)
> > 2018-09-28 16:03:39.086721 7f1ac02ba700 10 client.3246756 _flush
> > 0x10001698ac5.head(faked_ino=0 ref=4 ll_ref=1 cap_refs={} open={1=0}
> > mode=100644 size=17/0 nlink=1 mtime=2018-09-28 14:45:50.323273
> > caps=pAsLsXsFscr(0=pAsLsXsFscr) objectset[0x10001698ac5 ts 0/0 objects
>
> > 0 dirty_or_tx 0] parents=0x7f1a780f1dd0 0x7f1a7810ad00)
> > 2018-09-28 16:03:39.086729 7f1ac02ba700 10 client.3246756  nothing to
> > flush
> > 2018-09-28 16:03:39.086731 7f1ac02ba700 10 client.3246756 put_inode on
>
> > 0x10001698ac5.head(faked_ino=0 ref=4 ll_ref=1 cap_refs={} open={1=0}
> > mode=100644 size=17/0 nlink=1 mtime=2018-09-28 14:45:50.323273
> > caps=pAsLsXsFscr(0=pAsLsXsFscr) objectset[0x10001698ac5 ts 0/0 objects
>
> > 0 dirty_or_tx 0] parents=0x7f1a780f1dd0 0x7f1a7810ad00)
> > 2018-09-28 16:03:39.086759 7f1ac02ba700 10 client.3246756 check_caps
> > on 0x10001698ac5.head(faked_ino=0 ref=3 ll_ref=1 cap_refs={}
> > open={1=0}
> > mode=100644 size=17/0 nlink=1 mtime=2018-09-28 14:45:50.323273
> > caps=pAsLsXsFscr(0=pAsLsXsFscr) objectset[0x10001698ac5 ts 0/0 objects
>
> > 0 dirty_or_tx 0] parents=0x7f1a780f1dd0 0x7f1a7810ad00) wanted - used
> > - issued pAsLsXsFscr revoking - flags=0
> > 2018-09-28 16:03:39.086772 7f1ac02ba700 10 client.3246756
> > cap_delay_requeue on 0x10001698ac5.head(faked_ino=0 ref=3 ll_ref=1
> > cap_refs={} open={1=0} mode=100644 size=17/0 nlink=1 mtime=2018-09-28
> > 14:45:50.323273 caps=pAsLsXsFscr(0=pAsLsXsFscr)
> > objectset[0x10001698ac5 ts 0/0 objects 0 dirty_or_tx 0]
> > parents=0x7f1a780f1dd0 0x7f1a7810ad00)
> > 2018-09-28 16:03:39.086780 7f1ac02ba700 10 client.3246756  cap mds.0
> > issued pAsLsXsFscr implemented pAsLsXsFscr revoking -
> > 2018-09-28 16:03:39.086784 7f1ac02ba700 10 client.3246756 delaying cap
>
> > release
> > 2018-09-28 16:03:39.086786 7f1ac02ba700 10 client.3246756 _release_fh
> > 0x7f1a24028e10 on inode 0x10001698ac5.head(faked_ino=0 ref=3 ll_ref=1
> > cap_refs={} open={1=0} mode=100644 size=17/0 nlink=1 mtime=2018-09-28
> > 14:45:50.323273 caps=pAsLsXsFscr(0=pAsLsXsFscr)
> > objectset[0x10001698ac5 ts 0/0 objects 0 dirty_or_tx 0]
> > parents=0x7f1a780f1dd0 0x7f1a7810ad00) no async_err state
> > 2018-09-28 16:03:39.086796 7f1ac02ba700 10 client.3246756 put_inode on
>
> > 0x10001698ac5.head(faked_ino=0 ref=3 ll_ref=1 cap_refs={} open={1=0}
> > mode=100644 size=17/0 nlink=1 mtime=2018-09-28 14:45:50.323273
> > caps=pAsLsXsFscr(0=pAsLsXsFscr) objectset[0x10001698ac5 ts 0/0 objects
>
> > 0 dirty_or_tx 0] parents=0x7f1a780f1dd0 0x7f1a7810ad00)
> > 2018-09-28 16:03:41.223087 7f1b0bfff700 10 client.3246741 renew_caps()
> > 2018-09-28 16:03:41.223633 7f1b0affd700 10 client.3246741
> > handle_client_session client_session(renewcaps seq 9) v1 from mds.0
> > 2018-09-28 16:03:41.243573 7f1af3fff700 10 client.3246744 renew_caps()
> > 2018-09-28 16:03:41.243584 7f1af3fff700 10 client.3246744 renew_caps
> > mds.0
> > 2018-09-28 16:03:41.244175 7f1af2ffd700 10 client.3246744
> > handle_client_session client_session(renewcaps seq 9) v1 from mds.0
> > 2018-09-28 16:03:41.265549 7f1adbfff700 10 client.3246747 renew_caps()
> > 2018-09-28 16:03:41.265570 7f1adbfff700 10 client.3246747 renew_caps
> > mds.0
> > 2018-09-28 16:03:41.266197 7f1adaffd700 10 client.3246747
> > handle_client_session client_session(renewcaps seq 9) v1 from mds.0
> > 2018-09-28 16:03:41.284915 7f1ac3fff700 10 client.3246750 renew_caps()
> > 2018-09-28 16:03:41.284923 7f1ac3fff700 10 client.3246750 renew_caps
> > mds.0
> > 2018-09-28 16:03:41.285495 7f1ac2ffd700 10 client.3246750
> > handle_client_session client_session(renewcaps seq 9) v1 from mds.0
> > 2018-09-28 16:03:41.314160 7f1ab3fff700 10 client.3246753 renew_caps()
> > 2018-09-28 16:03:41.314182 7f1ab3fff700 10 client.3246753 renew_caps
> > mds.0
> > 2018-09-28 16:03:41.314717 7f1ab2ffd700 10 client.3246753
> > handle_client_session client_session(renewcaps seq 9) v1 from mds.0
> > 2018-09-28 16:03:41.333642 7f1aa0ff9700 10 client.3246586 renew_caps()
> > 2018-09-28 16:03:41.333670 7f1aa0ff9700 10 client.3246586 renew_caps
> > mds.0
> > 2018-09-28 16:03:41.334151 7f1a9b7fe700 10 client.3246586
> > handle_client_session client_session(renewcaps seq 9) v1 from mds.0
> > 2018-09-28 16:03:41.352189 7f1a88ff9700 10 client.3246756 renew_caps()
> > 2018-09-28 16:03:41.352196 7f1a88ff9700 10 client.3246756 renew_caps
> > mds.0
> > 2018-09-28 16:03:41.352630 7f1a82ffd700 10 client.3246756
> > handle_client_session client_session(renewcaps seq 9) v1 from mds.0
> > 2018-09-28 16:03:41.372079 7f1a6bfff700 10 client.3246759 renew_caps()
> > 2018-09-28 16:03:41.372087 7f1a6bfff700 10 client.3246759 renew_caps
> > mds.0
> > 2018-09-28 16:03:41.372544 7f1a6affd700 10 client.3246759
> > handle_client_session client_session(renewcaps seq 9) v1 from mds.0
> >
> >
> >
> >
> > -----Original Message-----
> > From: John Spray [mailto:jspray at redhat.com]
> > Sent: vrijdag 28 september 2018 15:45
> > To: Marc Roos
> > Cc: ceph-users at lists.ceph.com
> > Subject: Re: [ceph-users] cephfs issue with moving files between data
> > pools gives Input/output error
> >
> > On Fri, Sep 28, 2018 at 2:28 PM Marc Roos <M.Roos at f1-outsourcing.eu>
> > wrote:
> > >
> > >
> > > Looks like that if I move files between different data pools of the
> > > cephfs, something is still refering to the 'old location' and gives
> > > an
> >
> > > Input/output error. I assume this, because I am using different
> > > client
> >
> > > ids for authentication.
> > >
> > > With the same user as configured in ganesha, mounting (kernel)
> > > erasure
> >
> > > code cephfs m can create file out4
> > >
> > > At nfs4 client, same location m
> > > I can read out4
> > > I can create out5
> > > I can read out5
> > >
> > > Mounted root cephfs create file in folder t (test replicated 1) I
> > > can create out6 I can move out6 to a the folder m (erasure coded) I
> > > can read out6
> > >
> > > At nfs4 client, m location
> > > [@m]# cat out6
> > > cat: out6: Input/output error
> >
> > If it was due to permissions, I would expect to see EPERM rather than
> > EIO.  EIO suggests something more fundamentally broken, like a client
> > version that doesn't understand the latest layout format.
> >
> > Assuming you're using the CephFS FSAL in Ganesha (rather than
> > re-exporting a local mount of CephFS), it should be possible to create
>
> > an /etc/ceph/ceph.conf file with a "[client]" section that enables
> > debug logging (debug client = 10 or similar), and sets an output
> > location ("log file = /tmp/client.log") -- that might give a bit more
> > information about the nature of the error.
> >
> > John
> >
> > >
> > >
> > >
> > > [client.cephfs.t]
> > >      key = xxx==
> > >      caps mds = "allow rw path=/t"
> > >      caps mgr = "allow r"
> > >      caps mon = "allow r"
> > >      caps osd = "allow rwx pool=fs_meta,allow rwx pool=fs_data,
> > > allow
> >
> > > rwx pool=fs_data.r1"
> > >
> > > [client.cephfs.m]
> > >      key = xxx==
> > >      caps mds = "allow rw path=/m"
> > >      caps mgr = "allow r"
> > >      caps mon = "allow r"
> > >      caps osd = "allow rwx pool=fs_meta,allow rwx pool=fs_data.ec"
> > >
> > >
> > > [@ test]# cat /etc/redhat-release
> > > CentOS Linux release 7.5.1804 (Core)
> > >
> > > [@ test]# rpm -qa | grep ceph | sort
> > > ceph-12.2.8-0.el7.x86_64
> > > ceph-base-12.2.8-0.el7.x86_64
> > > ceph-common-12.2.8-0.el7.x86_64
> > > ceph-fuse-12.2.8-0.el7.x86_64
> > > ceph-mds-12.2.8-0.el7.x86_64
> > > ceph-mgr-12.2.8-0.el7.x86_64
> > > ceph-mon-12.2.8-0.el7.x86_64
> > > ceph-osd-12.2.8-0.el7.x86_64
> > > ceph-radosgw-12.2.8-0.el7.x86_64
> > > ceph-selinux-12.2.8-0.el7.x86_64
> > > collectd-ceph-5.8.0-2.el7.x86_64
> > > libcephfs2-12.2.8-0.el7.x86_64
> > > python-cephfs-12.2.8-0.el7.x86_64
> > >
> > > _______________________________________________
> > > ceph-users mailing list
> > > ceph-users at lists.ceph.com
> > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
> >
> >
> > _______________________________________________
> > ceph-users mailing list
> > ceph-users at lists.ceph.com
> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>
>
> _______________________________________________
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> ceph-users at lists.ceph.com
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