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Bug 736740 - "tgt-admin --update" fails when adding many devices to the configuration file at once
Summary: "tgt-admin --update" fails when adding many devices to the configuration file...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: scsi-target-utils
Version: 6.2
Hardware: Unspecified
OS: Unspecified
unspecified
high
Target Milestone: rc
: ---
Assignee: Andy Grover
QA Contact: Storage QE
URL:
Whiteboard:
: 727801 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-09-08 15:04 UTC by Rami Vaknin
Modified: 2014-01-12 23:53 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-12-06 18:58:53 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
fix (1.11 KB, patch)
2011-10-03 22:53 UTC, Andy Grover 		no flags Details | Diff
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2011:1762 0 normal SHIPPED_LIVE scsi-target-utils bug fix and enhancement update 2011-12-06 01:01:30 UTC

Description Rami Vaknin 2011-09-08 15:04:52 UTC 
Environment:
scsi-target-utils-1.0.14-2.el6.x86_64 on RHEL6.1

I updated the /etc/tgt/targets.conf with:
scenario a - 250 targets, each target contains one lun (lvs as backing store)
scenario b - 1 target with 250 luns (lvs as backing store)

Then I tried to restart tgtd or perform "tgt-admin --update ALL", the tgtd restart failed and the "tgt-admin --update ALL" fails every time with the same error message but each time on different target, it seems that each "tgt-admin --update ALL" can deal with only ~7-10 new target which it opens successfully and then it fails.

For the case of 250 targets - I need to run "tgt-admin --update ALL" ~30 times for all devices to be open.

[root@lion ~]# for i in `seq 1 10` ; do tgt-admin --update ALL ; done
tgtadm: this target already exists
Command:
	tgtadm -C 0 --lld iscsi --op new --mode target --tid 60 -T script121
exited with code: 22.
tgtadm: this target already exists
Command:
	tgtadm -C 0 --lld iscsi --op new --mode target --tid 74 -T script134
exited with code: 22.
tgtadm: this target already exists
Command:
	tgtadm -C 0 --lld iscsi --op new --mode target --tid 77 -T script137
exited with code: 22.
tgtadm: this target already exists
Command:
	tgtadm -C 0 --lld iscsi --op new --mode target --tid 78 -T script138
exited with code: 22.
tgtadm: this target already exists
Command:
	tgtadm -C 0 --lld iscsi --op new --mode target --tid 92 -T script150
exited with code: 22.
tgtadm: this target already exists
Command:
	tgtadm -C 0 --lld iscsi --op new --mode target --tid 93 -T script141
exited with code: 22.
tgtadm: this target already exists
Command:
	tgtadm -C 0 --lld iscsi --op new --mode target --tid 110 -T script167
exited with code: 22.
tgtadm: this target already exists
Command:
	tgtadm -C 0 --lld iscsi --op new --mode target --tid 111 -T script159
exited with code: 22.
tgtadm: this target already exists
Command:
	tgtadm -C 0 --lld iscsi --op new --mode target --tid 113 -T script17
exited with code: 22.
tgtadm: this target already exists
Command:
	tgtadm -C 0 --lld iscsi --op new --mode target --tid 114 -T script170
exited with code: 22.
[root@lion ~]#
Comment 2 Andy Grover 2011-09-30 22:41:43 UTC 
just to be clear, both scenario A and B show the same issue, each run of update --ALL only handles 7-10 before failing?
Comment 3 Rami Vaknin 2011-10-02 09:09:21 UTC 
Correct.
Comment 4 Andy Grover 2011-10-03 22:53:47 UTC 
Created attachment 526151 [details]
fix

Can reproduce. This fixes it for me.
Comment 5 Andy Grover 2011-10-04 20:31:30 UTC 
test rpm:

http://people.redhat.com/agrover/files/test_rpms/scsi-target-utils-1.0.14-3test1.el6.x86_64.rpm
Comment 7 Rami Vaknin 2011-10-09 11:23:15 UTC 
Not reproducible with the rpm from Comment 5.
Comment 9 Barry Donahue 2011-10-17 18:17:08 UTC 
Verified in comment 7 and SanityOnly.
Comment 10 Andy Grover 2011-11-03 00:12:42 UTC 
*** Bug 727801 has been marked as a duplicate of this bug. ***
Comment 11 errata-xmlrpc 2011-12-06 18:58:53 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.

http://rhn.redhat.com/errata/RHBA-2011-1762.html
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