Bug #23234
closedmds: damage detected while opening remote dentry
0%
Description
ceph 10.2.10
centos 7.3
kernel client
3nodes 3mds active-standy-standy (cold model)
mds deteced meta damaged when open remote dentry
from mds log I found :
src/mds/MDCache.cc
MDCache::_open_remote_dentry_finish output (r<0)
but no more information.
I have added below information for expect to find more info.
============
dout(0) << "open_remote_dentry_finish bad remote dentry " << *dn << dendl;
dout(0) << "open_remote_dentry_finish bad remote dentry " << *dn
<< " " <<ino
<< " " <<want_xlocked
<< " " <<r
<< dendl;
BackTrace bt(1);
ostringstream oss;
bt.print(oss);
dout_emergency(oss.str());============
ceph tell mds.0 damage ls show below:
type:backtrace
please refer to attach file.
Files
Updated by Yong Wang about 6 years ago
We can recover ceph status on the below way:
1. mv thoses backtrace failed file name to another name
2. change thoses files to default name.
3. damange rm
4. ls -R will be ok
Updated by Yong Wang about 6 years ago
- File damage_ls.png damage_ls.png added
amend the attach file, due to lost the character .png
Updated by Zheng Yan about 6 years ago
the issue is caused by corrupted _parent xattr. have you ever done done mds journal reset or have you ever found scrub errors?
Updated by Patrick Donnelly about 6 years ago
- Subject changed from mds deteced meta damaged when open remote dentry to mds: damage detected while opening remote dentry
- Status changed from New to Need More Info
- Assignee changed from Patrick Donnelly to Zheng Yan
- Source changed from other to Community (user)
Updated by Yong Wang about 6 years ago
not find scrub error waring.
not reset journal for a long time.
it happend just like below: ========================
/folder1/file1
mkdir /folder2
ln -s /folder1/file1 /folder2
when open (something else) folder2's file file1, it is a hard link file.
call open_remote_dentry, failed (r < 0).
I can't find anything else.
========================
Updated by Yong Wang about 6 years ago
do you think the src file _parent xattr corruptted?
due to if hard link file _parent xattr corrupt, shouldn't step into open_remote_dentry.
Updated by Patrick Donnelly about 6 years ago
- Category deleted (
90) - Status changed from Need More Info to Won't Fix
- Target version deleted (
v10.2.11) - Tags set to multimds
- Release deleted (
jewel) - ceph-qa-suite deleted (
fs) - Component(FS) deleted (
MDS)
Sorry, we won't look at bugs for multiple actives pre-Luminous.