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Bug #17096

closed

Pool name is not displayed after changing CephFS File layout using extended attributes

Added by Rohith Radhakrishnan over 7 years ago. Updated over 7 years ago.

Status:
Won't Fix
Priority:
High
Assignee:
-
Category:
-
Target version:
-
% Done:

0%

Source:
other
Tags:
Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
Ceph - v10.2.2
ceph-qa-suite:
fs
Component(FS):
Labels (FS):
Pull request ID:
Crash signature (v1):
Crash signature (v2):

Description

Steps-

1)Create a pool and a metadata pool and create a new cephfs using the pools and mount the file system from client
2) Now create another data pool and attach it to the already created cephfs FS using "ceph fs add_data_pool "
3) Using "setfattr" set the file layout to another pool.
4) Read layout using "getfattr"

Result: Only pool id of the new pool is shown instead of pool name.

===============================================================================================================
#ceph osd lspools
0 rbd,1 cephfs_data1,2 cephfs_metadata,3 cephfs_data,4 cephfs_data2

#ceph fs ls
name: cephfs, metadata pool: cephfs_metadata, data pools: [cephfs_data1 cephfs_data cephfs_data2 ]

==============================================================================================================

  1. sudo setfattr -n ceph.file.layout.pool -v cephfs_data2 /mnt/mycephfs/file
  1. sudo getfattr -n ceph.file.layout /mnt/mycephfs/file
    getfattr: Removing leading '/' from absolute path names
  2. file: mnt/mycephfs/file

ceph.file.layout="stripe_unit=4194304 stripe_count=1 object_size=4194304 pool=4"

========================================================================================================================

  1. sudo setfattr -n ceph.dir.layout.pool -v cephfs_data /mnt/mycephfs
  1. sudo getfattr -n ceph.dir.layout /mnt/mycephfs
    getfattr: Removing leading '/' from absolute path names
  2. file: mnt/mycephfs

ceph.dir.layout="stripe_unit=4194304 stripe_count=1 object_size=4194304 pool=3"

===========================================================================================================================

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 #1

Updated by Rohith Radhakrishnan over 7 years ago

Just saw the note: Note When reading layouts, the pool will usually be indicated by name. However, in rare cases when pools have only just been created, the ID may be output instead.

Is there any plan to fix this? If not pls ignore.

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 #2

Updated by Greg Farnum over 7 years ago

  • Status changed from New to Won't Fix

I think this is just a result of not having the current OSDMap yet. If you're doing IO on the client, you're unlikely to experience this issue (and the window is certainly very small). We could force an OSDMap update prior to returning the output here, but...why bother?

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