Hi, What version of gluster are you using? Also, could you share your volume configuration (`gluster volume info`)?
-Krutika On Wed, Sep 28, 2016 at 6:58 AM, Ravishankar N <[email protected]> wrote: > On 09/28/2016 12:16 AM, ML Wong wrote: > > Hello Ravishankar, > Thanks for introducing the sharding feature to me. > It does seems to resolve the problem i was encountering earlier. But I > have 1 question, do we expect the checksum of the file to be different if i > copy from directory A to a shard-enabled volume? > > > No the checksums must match. Perhaps Krutika who works on Sharding (CC'ed) > can help you figure out why that isn't the case here. > -Ravi > > > [xxxxx@ip-172-31-1-72 ~]$ sudo sha1sum /var/tmp/oVirt-Live-4.0.4.iso > ea8472f6408163fa9a315d878c651a519fc3f438 /var/tmp/oVirt-Live-4.0.4.iso > [xxxxx@ip-172-31-1-72 ~]$ sudo rsync -avH /var/tmp/oVirt-Live-4.0.4.iso > /mnt/ > sending incremental file list > oVirt-Live-4.0.4.iso > > sent 1373802342 bytes received 31 bytes 30871963.44 bytes/sec > total size is 1373634560 speedup is 1.00 > [xxxxx@ip-172-31-1-72 ~]$ sudo sha1sum /mnt/oVirt-Live-4.0.4.iso > 14e9064857b40face90c91750d79c4d8665b9cab /mnt/oVirt-Live-4.0.4.iso > > On Mon, Sep 26, 2016 at 6:42 PM, Ravishankar N <[email protected]> > wrote: > >> On 09/27/2016 05:15 AM, ML Wong wrote: >> >> Have anyone in the list who has tried copying file which is bigger than >> the individual brick/replica size? >> Test Scenario: >> Distributed-Replicated volume, 2GB size, 2x2 = 4 bricks, 2 replicas >> Each replica has 1GB >> >> When i tried to copy file this volume, by both fuse, or nfs mount. i get >> I/O error. >> Filesystem Size Used Avail Use% Mounted on >> /dev/mapper/vg0-brick1 1017M 33M 985M 4% /data/brick1 >> /dev/mapper/vg0-brick2 1017M 109M 909M 11% /data/brick2 >> lbre-cloud-dev1:/sharevol1 2.0G 141M 1.9G 7% /sharevol1 >> >> [xxxxxx@cloud-dev1 ~]$ du -sh /var/tmp/ovirt-live-el7-3.6.2.iso >> 1.3G /var/tmp/ovirt-live-el7-3.6.2.iso >> >> [melvinw@lbre-cloud-dev1 ~]$ sudo cp /var/tmp/ovirt-live-el7-3.6.2.iso >> /sharevol1/ >> cp: error writing ‘/sharevol1/ovirt-live-el7-3.6.2.iso’: Input/output >> error >> cp: failed to extend ‘/sharevol1/ovirt-live-el7-3.6.2.iso’: Input/output >> error >> cp: failed to close ‘/sharevol1/ovirt-live-el7-3.6.2.iso’: Input/output >> error >> >> >> Does the mount log give you more information? It it was a disk full >> issue, the error you would get is ENOSPC and not EIO. This looks like >> something else. >> >> >> I know, we have experts in this mailing list. And, i assume, this is a >> common situation where many Gluster users may have encountered. The worry >> i have what if you have a big VM file sitting on top of Gluster volume ...? >> >> It is recommended to use sharding (http://blog.gluster.org/2015/ >> 12/introducing-shard-translator/) for VM workloads to alleviate these >> kinds of issues. >> -Ravi >> >> Any insights will be much appreciated. >> >> >> >> _______________________________________________ >> Gluster-users mailing >> [email protected]http://www.gluster.org/mailman/listinfo/gluster-users >> >>
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