Bug 210415 - multipathd doesn't correctly monitor gnbd devices
Summary: multipathd doesn't correctly monitor gnbd devices
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: gnbd
Version: 5.0
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
: ---
Assignee: Ben Marzinski
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2006-10-11 21:54 UTC by Ben Marzinski
Modified: 2009-04-16 22:27 UTC (History)
1 user (show)

Fixed In Version: 5.0.0
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2006-11-28 21:04:35 UTC
Target Upstream Version:
Embargoed:


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Description Ben Marzinski 2006-10-11 21:54:22 UTC
Description of problem:
gnbd and device-mapper-multipath do not work well together. GNBD devices that
should not be monitored are being monitored by multipathd, and some gnbd devices
that should be monitored are not.

Version-Release number of selected component (if applicable):


How reproducible:
Always


Steps to Reproduce:
1.modprobe gnbd
2.service multipathd start
3.gnbd_import -i <gnbd_server>
4.gnbd_import -R
  
Actual results:
all 128 gnbd devices are monitored, even though none are used. When gnbd device
is unimported, it is still monitored

Expected results:
only used gnbd devices are monitored. When then are unimported, they stop being
monitored

Additional info:
There are small fixes necessary for both gnbd and device-mapper-multipath. I
already have the code done and tested.

Comment 1 Kiersten (Kerri) Anderson 2006-10-11 22:09:52 UTC
Devel ACK for beta2 - regression from rhel4.

Comment 2 RHEL Program Management 2006-10-11 22:17:06 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux release.  Product Management has requested further review
of this request by Red Hat Engineering.  This request is not yet committed for
inclusion in release.

Comment 3 Ben Marzinski 2006-10-16 20:14:35 UTC
This is fixed. multipathd now only monitors the correct devices, and gnbd
correctly informs it when to update


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