Bug 1500646 - [GSS] I/O between gluster and clients is very slow
Summary: [GSS] I/O between gluster and clients is very slow
Keywords:
Status: CLOSED INSUFFICIENT_DATA
Alias: None
Product: Red Hat Gluster Storage
Classification: Red Hat Storage
Component: glusterfs
Version: rhgs-3.1
Hardware: x86_64
OS: Linux
high
high
Target Milestone: ---
: ---
Assignee: Raghavendra G
QA Contact: Bala Konda Reddy M
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-10-11 09:17 UTC by Damian Wojsław
Modified: 2021-03-11 15:58 UTC (History)
12 users (show)

Fixed In Version:
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Clone Of:
Environment:
Last Closed: 2018-11-10 02:43:33 UTC
Embargoed:

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Description Damian Wojsław 2017-10-11 09:17:39 UTC 
Description of problem:
During various tests Customer experiences constant slow I/O between client and server:
Copying 1.3 Go of data (4Ko file) :
- Source -> Gluster Volume (fuse) : 30 Ko/s
- Source -> Gluster client local : 3 Mo/s
- Gluster client local -> Gluster Volume (fuse) : 30 Ko/s

Several runs were performed, results are consistent.

Version-Release number of selected component (if applicable):
Red Hat Gluster Storage 3.1 update 3
Red Hat Enterprise Linux 7.3
gluster-nagios-addons-0.2.7-1.el7rhgs.x86_64                Wed Feb  8 14:35:51 2017
gluster-nagios-common-0.2.4-1.el7rhgs.noarch                Wed Feb  8 14:34:28 2017
glusterfs-3.7.9-12.el7rhgs.x86_64                           Wed Feb  8 14:34:18 2017
glusterfs-api-3.7.9-12.el7rhgs.x86_64                       Wed Feb  8 14:34:19 2017
glusterfs-cli-3.7.9-12.el7rhgs.x86_64                       Wed Feb  8 14:34:23 2017
glusterfs-client-xlators-3.7.9-12.el7rhgs.x86_64            Wed Feb  8 14:34:19 2017
glusterfs-fuse-3.7.9-12.el7rhgs.x86_64                      Wed Feb  8 14:34:20 2017
glusterfs-ganesha-3.7.9-12.el7rhgs.x86_64                   Wed Feb  8 14:36:10 2017
glusterfs-geo-replication-3.7.9-12.el7rhgs.x86_64           Wed Feb  8 14:35:47 2017
glusterfs-libs-3.7.9-12.el7rhgs.x86_64                      Wed Feb  8 14:34:17 2017
glusterfs-rdma-3.7.9-12.el7rhgs.x86_64                      Wed Feb  8 14:36:11 2017
glusterfs-server-3.7.9-12.el7rhgs.x86_64                    Wed Feb  8 14:35:45 2017
nfs-ganesha-gluster-2.3.1-8.el7rhgs.x86_64                  Wed Feb  8 14:35:48 2017
python-gluster-3.7.9-12.el7rhgs.noarch                      Wed Feb  8 14:34:29 2017
samba-vfs-glusterfs-4.4.5-3.el7rhgs.x86_64                  Wed Feb  8 14:36:00 2017
vdsm-gluster-4.17.33-1.el7rhgs.noarch                       Wed Feb  8 14:36:05 2017


How reproducible:


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In next comment.
Comment 22 Amar Tumballi 2018-10-30 08:50:09 UTC 
An year since the last update, and the case is closed! (without any response from customer).

We know for sure that a single threaded copy on glusterfs for small file can lead to performance issues, and the suggested work-around looks fine.

Let us know what are the next steps here! We are in the process of fixing the performance issues for small file in upstream, and there are discussions, but we can't do anything for this particular bug for now.

Planning to close it as WONTFIX?
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