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Bug #17610

closed

FileStore: fiemap cannot be totally retrieved in xfs when the number of extents > 1364

Added by Yao Ning over 7 years ago. Updated over 7 years ago.

Status:
Resolved
Priority:
Urgent
Assignee:
Yao Ning
Category:
OSD
Target version:
-
% Done:

100%

Source:
Community (user)
Tags:
Backport:
jewel,hammer
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
v0.94.8
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):

Description

Retrieve Fiemap from XFS filesystem:

0: [0..7]: 22108440..22108447
    1: [8..15]: hole
    2: [16..23]: 22108456..22108463
    3: [24..31]: hole
    4: [32..39]: 22108472..22108479
    5: [40..47]: hole
    6: [48..55]: 22108488..22108495
    7: [56..63]: hole
    ...
    ...
    3991: [31928..31935]: hole
    3992: [31936..31943]: 22057896..22057903
    3993: [31944..31951]: hole
    3994: [31952..31959]: 22057960..22057967
    3995: [31960..31967]: hole
    3996: [31968..31975]: 22058008..22058015
    3997: [31976..31983]: hole
    3998: [31984..31991]: 22058040..22058047

Actually, 2000 extents should be retrived here.

However, the result is:
total extents retrieved: 1364

Related issues 2 (0 open — 2 closed)

Copied to Ceph - Backport #17877: jewel: FileStore: fiemap cannot be totally retrieved in xfs when the number of extents > 1364 ResolvedAbhishek VarshneyActions
Copied to Ceph - Backport #17878: hammer: FileStore: fiemap cannot be totally retrieved in xfs when the number of extents > 1364 ResolvedNathan CutlerActions
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