[Bugs] [Bug 1371556] New: Fio (ioengine=gfapi) FS_cached_4k_random_reads fails on gluster v3.6.1

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1371556

            Bug ID: 1371556
           Summary: Fio (ioengine=gfapi) FS_cached_4k_random_reads fails
                    on gluster v3.6.1
           Product: GlusterFS
           Version: 3.8.3
         Component: libgfapi
          Keywords: Performance, Triaged
          Severity: high
          Assignee: bugs at gluster.org
          Reporter: hgowtham at redhat.com
        QA Contact: sdharane at redhat.com
                CC: bugs at gluster.org, kiran at fractalio.com,
                    ndevos at redhat.com, storage-qa-internal at redhat.com
        Depends On: 1169236



+++ This bug was initially created as a clone of Bug #1169236 +++

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.

--- Additional comment from Niels de Vos on 2014-12-02 07:48:30 EST ---

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

--- Additional comment from Kiran Patil on 2014-12-02 07:58:05 EST ---

Hi Niels,

I will try with fuse mount.

I am using distributed volume.

Thanks,
Kiran.


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1169236
[Bug 1169236] Fio (ioengine=gfapi) FS_cached_4k_random_reads fails on
gluster v3.6.1
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