Project

General

Profile

Feature #5635

RBD Kernel Client Incompatibility leads to Kernel Hang

Added by Mark Nelson over 10 years ago. Updated about 7 years ago.

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

0%

Source:
other
Tags:
Backport:
Reviewed:
Affected Versions:
Pull request ID:

Description

Using Ceph 0.66 and trying to mount RBD via the kernel client in kernels prior to 3.9 causes the following:

[ 486.500886] libceph: mon0 192.168.10.2:6789 feature set mismatch, my 40002 < server's 40040002, missing 40000000

This is apparently a known incompatibility and documented in 0.64. Unfortunately, trying to use Kernel RBD with 0.66 on a pre-3.9 kernel also appears to cause the entire client node to hang a minute or two after the mount attempt is made.

History

#1 Updated by Mark Nelson over 10 years ago

Client kernel version:

linux-image-3.8.0-19-generic from the ubuntu 64bit precise repository.

#2 Updated by Sage Weil over 10 years ago

  • Priority changed from Normal to Urgent

#3 Updated by Sage Weil over 10 years ago

  • Assignee set to Sage Weil

#4 Updated by Sage Weil over 10 years ago

  • Project changed from Ceph to rbd
  • Status changed from New to 12
  • Target version deleted (v0.67 - Dumpling)

- kenrel should not hang
- we should probably not make pspool the default (and it should happen after we switch to sane crush tunables)

#5 Updated by Sage Weil over 10 years ago

  • Priority changed from Urgent to High

#6 Updated by Sage Weil over 10 years ago

  • Assignee deleted (Sage Weil)

#7 Updated by Ian Colle about 10 years ago

  • Priority changed from High to Normal

#8 Updated by Sage Weil about 10 years ago

  • Tracker changed from Bug to Feature

#9 Updated by Jason Dillaman about 7 years ago

  • Status changed from 12 to Resolved

Also available in: Atom PDF