Bug 1554826 - [RFE] Add tcmu-runner ALUA core to import tcmu_notify_conn_lost functionality
Summary: [RFE] Add tcmu-runner ALUA core to import tcmu_notify_conn_lost functionality
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Gluster Storage
Classification: Red Hat Storage
Component: tcmu-runner
Version: cns-3.10
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
: CNS 3.10
Assignee: Prasanna Kumar Kalever
QA Contact: Sweta Anandpara
URL:
Whiteboard:
Depends On:
Blocks: 1507764 1568860
TreeView+ depends on / blocked
 
Reported: 2018-03-13 12:45 UTC by Prasanna Kumar Kalever
Modified: 2018-09-12 09:26 UTC (History)
11 users (show)

Fixed In Version: tcmu-runner-1.2.0-19.el7rhgs
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2018-09-12 09:25:26 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHEA-2018:2691 0 None None None 2018-09-12 09:26:55 UTC

Description Prasanna Kumar Kalever 2018-03-13 12:45:35 UTC 
Description of problem:

With tcmu_notify_conn_lost() if the reconfig (done as part of resize) fails the tcmu_reopen_dev() is invoked in a loop until reopen success.

And When reconfig fails the tcmu_notify_conn_lost() will internally disable the ALUA default_tg_pt_gp/glfs_tg_pt_gp group. And once the tcmu_reopen_dev() is successful it will automatically move default_tg_pt_gp/glfs_tg_pt_gp group to enabled.

Additional info:
Need to backport the alua code from upstream tcmu-runner.

Just a Note: This doesn't mean that gluster supports ALUA, we are just reusing some code to address reconfig failures.
Comment 21 errata-xmlrpc 2018-09-12 09:25:26 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2018:2691
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