Bug 1169236

Summary:	Fio (ioengine=gfapi) FS_cached_4k_random_reads fails on gluster v3.6.1
Product:	[Community] GlusterFS	Reporter:	Kiran Patil <kiran>
Component:	libgfapi	Assignee:	Niels de Vos <ndevos>
Status:	CLOSED NOTABUG	QA Contact:	storage-qa-internal <storage-qa-internal>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	mainline	CC:	bugs, jthottan, kiran, ndevos
Target Milestone:	---	Keywords:	Performance, Triaged
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	1371556 1371557 (view as bug list)		Environment:
Last Closed:	2018-11-20 09:33:19 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:	1371556, 1371557

Description Kiran Patil 2014-12-01 06:15:28 UTC

Description of problem:
I am running fio latest from master branch with below configuration on gluster v3.6.1 CentOS v6.6 and it is failing.

How reproducible:
Always

Steps to Reproduce:
1. install gluster v3.6.1 one machine 1 (Ex: 192.168.1.246)

2. install fio from https://github.com/axboe/fio on machine 2 (Ex: 192.168.1.245)

3. # fio $args --output=4k_caranred_gz.log --section=FS_cached_4k_random_reads --ioengine=gfapi --volume=vol1 --brick=192.168.1.246 fsmb.fio

4. # fio $args --output=4k_caranredmt_gz.log --section=FS_multi-threaded_cached_4k_random_reads --ioengine=gfapi --volume=vol1 --brick=192.168.1.246 fsmb.fio


Actual results:
fio: failed to lseek pre-read file[0KB/0KB/0KB /s] [0/0/0 iops] [eta 1158050440d:23h:16m:01s]

fio: failed to lseek pre-read file[0KB/0KB/0KB /s] [0/0/0 iops] [eta 1158050440d:23h:12m:37s]
fio: failed to lseek pre-read fileone] [0KB/0KB/0KB /s] [0/0/0 iops] [eta 1158050440d:23h:12m:33s]
fio: failed to lseek pre-read fileone] [4KB/0KB/0KB /s] [1/0/0 iops] [eta 1158050440d:23h:12m:32s]
fio: failed to lseek pre-read file


Expected results:
Fio should complete with flying numbers (bandwidth, iops, ...) :)

Additional info:
fsmb.fio configuration file:
----------------------------

[global]

[FS_128k_streaming_writes]
name=seqwrite
rw=write
bs=128k
size=5g
#end_fsync=1
loops=1

[FS_cached_4k_random_reads]
name=randread
rw=randread
pre_read=1
norandommap
bs=4k
size=256m
runtime=30
loops=1

[FS_multi-threaded_cached_4k_random_reads]
name=randread
numjobs=4
rw=randread
pre_read=1
norandommap
bs=4k
size=256m/4
runtime=30
loops=1

Thanks.

Comment 1 Niels de Vos 2014-12-02 12:48:30 UTC

Hi Kiran,

could you let us know if you hit any issues with fio over a fuse mount?
Also, what kind of volume are you running the tests against?

Thanks,
Niels

Comment 2 Kiran Patil 2014-12-02 12:58:05 UTC

Hi Niels,

I will try with fuse mount.

I am using distributed volume.

Thanks,
Kiran.

Comment 3 Jiffin 2018-11-20 09:33:19 UTC

AFAIK fio was able to run against nfs-ganesha/samba(which internally uses gfapi). Hence closing this bug as current.Please feel free to reopen the bug if needed