Bug 1459756

Summary:	[NegativeLookUp Cache] "nl-cache.c:201:nlc_lookup_cbk" Error messages are seen in client logs after any IO is performed
Product:	[Red Hat Storage] Red Hat Gluster Storage	Reporter:	Vivek Das <vdas>
Component:	samba	Assignee:	Poornima G <pgurusid>
Status:	CLOSED ERRATA	QA Contact:	Vivek Das <vdas>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rhgs-3.3	CC:	amukherj, rhinduja, rhs-smb
Target Milestone:	---
Target Release:	RHGS 3.3.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	glusterfs-3.8.4-28	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-09-21 04:59:42 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1417151

Description Vivek Das 2017-06-08 06:10:33 UTC

Description of problem:
When IOs are performed on a volume share with nl.cache enabled over that volume we see lot of error messages (as below)

[2017-06-08 05:06:43.671805] E [nl-cache.c:201:nlc_lookup_cbk] (-->/usr/lib64/glusterfs/3.8.4/xlato     r/performance/io-cache.so(+0x7cee) [0x7f452b074cee] -->/usr/lib64/glusterfs/3.8.4/xlator/performanc     e/quick-read.so(+0x3cb3) [0x7f452ae68cb3] -->/usr/lib64/glusterfs/3.8.4/xlator/performance/nl-cache     .so(+0x6c2a) [0x7f452aa53c2a] ) 0-topgun-nl-cache: invalid argument: local [Invalid argument]      
"glusterfs-topgun.10.70.43.247.log" 1603L, 583830C 

Version-Release number of selected component (if applicable):
samba-client-4.6.3-2.el7rhgs.x86_64
glusterfs-cli-3.8.4-27.el7rhgs.x86_64
Windows10

How reproducible:
Always

Steps to Reproduce:
1.Mount a volume over windows with nl.cache enabled
2.Perform any IO
3.Check logs

Actual results:
Error messages are seen in logs

Expected results:
No error messages should be seen

Additional info:

Volume Name: topgun
Type: Distributed-Replicate
Volume ID: 7a2b0cc2-134e-4c28-b901-7a66fa80d660
Status: Started
Snapshot Count: 0
Number of Bricks: 2 x 2 = 4
Transport-type: tcp
Bricks:
Brick1: dhcp47-127.lab.eng.blr.redhat.com:/bricks/brick5/topgun_brick0
Brick2: dhcp46-181.lab.eng.blr.redhat.com:/bricks/brick5/topgun_brick1
Brick3: dhcp46-47.lab.eng.blr.redhat.com:/bricks/brick4/topgun_brick2
Brick4: dhcp47-140.lab.eng.blr.redhat.com:/bricks/brick4/topgun_brick3
Options Reconfigured:
performance.cache-samba-metadata: on
network.inode-lru-limit: 50000
performance.md-cache-timeout: 600
performance.cache-invalidation: on
features.cache-invalidation-timeout: 600
features.cache-invalidation: on
nfs.disable: on
transport.address-family: inet
server.allow-insecure: on
performance.stat-prefetch: on
storage.batch-fsync-delay-usec: 0
performance.parallel-readdir: on
performance.nl-cache: on
features.uss: enable
features.show-snapshot-directory: enable
features.barrier: disable

Comment 4 Atin Mukherjee 2017-06-09 11:38:10 UTC

downstream patch : https://code.engineering.redhat.com/gerrit/#/c/107930/

Comment 6 Vivek Das 2017-07-06 11:06:19 UTC

With below version
samba-4.6.3-3.el7rhgs.x86_64
glusterfs-fuse-3.8.4-32.el7rhgs.x86_64

followed the steps to reproduce and i am not seeing the error messages as reported above. Hence going ahead and marking this as verified.

Comment 8 errata-xmlrpc 2017-09-21 04:59:42 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/RHBA-2017:2774