similar to: Unreasonably poor performance of replicated volumes

Guess you went through user lists and tried something like this already http://lists.gluster.org/pipermail/gluster-users/2018-April/033811.html I have a same exact setup and below is as far as it went after months of trail and error. We all have somewhat same setup and same issue with this - you can find same post as yours on the daily basis. On Wed, Apr 11, 2018 at 3:03 PM, Anastasia Belyaeva

Thanks a lot for your reply! You guessed it right though - mailing lists, various blogs, documentation, videos and even source code at this point. Changing some off the options does make performance slightly better, but nothing particularly groundbreaking. So, if I understand you correctly, no one has yet managed to get acceptable performance (relative to underlying hardware capabilities) with

The profile seems to suggest very high latencies on the brick at ovirt1.nwfiber.com:/gluster/brick1/engine ovirt2.* shows decent numbers. Is everything OK with the brick on ovirt1? Are the bricks of engine volume on both these servers identical in terms of their config? -Krutika On Wed, May 30, 2018 at 3:07 PM, Jim Kusznir <jim at palousetech.com> wrote: > Hi: > > Thank you. I

Hi all again: I'm now subscribed to gluster-users as well, so I should get any replies from that side too. At this point, I am seeing acceptable (although slower than I expect) performance much of the time, with periodic massive spikes in latency (occasionally so bad as to cause ovirt to detect a engine bad health status). Often, if I check the logs just then, I'll see those call traces

I've been back at it, and still am unable to get more than one of my physical nodes to come online in ovirt, nor am I able to get more than the two gluster volumes (storage domains) to show online within ovirt. In Storage -> Volumes, they all show offline (many with one brick down, which is correct: I have one server off) However, in Storage -> domains, they all show down (although

On Thu, May 31, 2018 at 3:16 AM, Jim Kusznir <jim at palousetech.com> wrote: > I've been back at it, and still am unable to get more than one of my > physical nodes to come online in ovirt, nor am I able to get more than the > two gluster volumes (storage domains) to show online within ovirt. > > In Storage -> Volumes, they all show offline (many with one brick down,

OK my understanding is that with preallocated disks the performance with and without shard will be the same. In any case, please attach the volume profile[1], so we can see what else is slowing things down. -Krutika [1] - https://gluster.readthedocs.io/en/latest/Administrator%20Guide/Monitoring%20Workload/#running-glusterfs-volume-profile-command On Tue, Sep 5, 2017 at 2:32 PM, Abi Askushi

Adding Ravi to look into the heal issue. As for the fsync hang and subsequent IO errors, it seems a lot like https://bugzilla.redhat.com/show_bug.cgi?id=1497156 and Paolo Bonzini from qemu had pointed out that this would be fixed by the following commit: commit e72c9a2a67a6400c8ef3d01d4c461dbbbfa0e1f0 Author: Paolo Bonzini <pbonzini at redhat.com> Date: Wed Jun 21 16:35:46 2017

Hi Krutika, I already have a preallocated disk on VM. Now I am checking performance with dd on the hypervisors which have the gluster volume configured. I tried also several values of shard-block-size and I keep getting the same low values on write performance. Enabling client-io-threads also did not have any affect. The version of gluster I am using is glusterfs 3.8.12 built on May 11 2017

Hi I'm trying to setup a 3 node gluster, and am hitting huge performance bottlenecks. The 3 servers are connected over 10GB and glusterfs is set to create a 3 node replica. With a single VM performance was poor, but I could have lived with it. I tried to stress it by putting copies of a bunch of VMs on the servers and seeing what happened with parallel nodes.. network load never broke

[Adding gluster-users back] Nothing amiss with volume info and status. Can you check the agent.log and broker.log - will be under /var/log/ovirt-hosted-engine-ha/ Also the gluster client logs - under /var/log/glusterfs/rhev-data-center-mnt-glusterSD<volume>.log On Wed, May 30, 2018 at 12:08 PM, Jim Kusznir <jim at palousetech.com> wrote: > I believe the gluster data store for

Help please- I am running 3.3.1 on Centos using a 10GB network. I get reasonable write speeds, although I think they could be faster. But my read speeds are REALLY slow. Executive summary: On gluster client- Writes average about 700-800MB/s Reads average about 70-80MB/s On server- Writes average about 1-1.5GB/s Reads average about 2-3GB/s Any thoughts? Here are some additional details:

Hi, So is the KVM or Vmware as the host(s)? I basically have the same setup ie 3 x 1TB "raid1" nodes and VMs, but 1gb networking. I do notice with vmware using NFS disk was pretty slow (40% of a single disk) but this was over 1gb networking which was clearly saturating. Hence I am moving to KVM to use glusterfs hoping for better performance and bonding, it will be interesting to see

Hi, i need to draw a plot with means of values, reading a table from datafile. Example of datafile: Days Weight 0 178.00 0 250.00 0 242.00 0 239.00 0 223.00 0 188.00 0 237.00 0 212.00 0 273.00 0 191.00 0 173.00 0 233.00 0 227.00 0 253.00 0 232.00 4 177.00 4 249.00 4 241.00 4 238.00 4 222.00 4 188.00 4 236.00 4 211.00 4 272.00 4 190.00 4 172.00 4 232.00 4 226.00 4 252.00 4 231.00 if i use

On 2016-05-25 19:13, Kelly Lesperance wrote: > Hdparm didn?t get far: > > [root at r1k1 ~] # hdparm -tT /dev/sda > > /dev/sda: > Timing cached reads: Alarm clock > [root at r1k1 ~] # Hi Kelly, Try running 'iostat -xdmc 1'. Look for a single drive that has substantially greater await than ~10msec. If all the drives except one are taking 6-8msec, but one is very

Hej, i need the which() funktion to find the positions of an entry in a matrix. the entries i'm looking for are : seq(begin,end,0.01) and there are no empty spaces i'm searching in the right range. so i was looking for the results R can find and i recieved this answer. for (l in

Hi, This is the first time I've posted, and I apologize if I formulate this incorrectly. I am analyzing data from a multi-region carrot variety trial. 35 varieties of carrots were grown in 3 randomized complete blocks in organic and conventional fields in Wisconsin, Indiana, Washington, and California. In this example I am comparing the heights of the carrot tops at harvest. In other

I'm struggling to find any help on this seemingly simple question - how does one read data with percentage (%) or currency (?,$ etc.) signs? When I try to read a data file which has any of those symbols in the data fields, they are read as characters rather than values. Is there a function or library which can deal with such values? As an example, I use this sample from one of chinna's

Dear R Users, If a variable, say CO2(ppm), is varying with time. Then how to calculate CO2 (ppm) growth rate /a-1 I have CO2 time series (1991-2000), as: time, year, month, day, hour, min, sec, lat, long, height, CO2 1991.476722 1991 6 24 0 5 0 -38.93 145.15 4270 353.680 1991.476741 1991 6 24 0 15 0 -39.20 145.22 4270 353.950 1991.476747 1991 6 24 0 18 0 -39.43 145.28 4270 353.510

If I use latex(summary(X)) where X is a data frame with four variables I get something like Rainfall Education Popden Nonwhite Min. :10.00 Min. : 9.00 Min. :1441 Min. : 0.80 1st Qu.:32.75 1st Qu.:10.40 1st Qu.:3104 1st Qu.: 4.95 Median :38.00 Median :11.05 Median :3567 Median :10.40 Mean :37.37 Mean :10.97 Mean :3866