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Bug #8140

closed

0.79: MDS / CephFS: unable to read directory

Added by Dmitry Smirnov about 10 years ago. Updated about 10 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
% Done:

0%

Source:
other
Tags:
Backport:
Regression:
Severity:
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(FS):
Labels (FS):
Pull request ID:
Crash signature (v1):
Crash signature (v2):

Description

With kernel client I got the following error when I attempted to list files in directory containing 1021 files:

ls -l /mnt/ceph/home/user/.config/chromium/Default/Local\ Storage
ls: reading directory /mnt/ceph/home/user/.config/chromium/Default/Local Storage: Cannot allocate memory

With Fuse client similar command was waiting indefinitely not returning any output.

Restarting active MDS fixed the issue.

MDS configuration:

    mds cache size             = 400000
    mds mem max                = 4194304

I found no errors in logs.

Linux-3.13.7 x86_64.

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