https://bugzilla.redhat.com/show_bug.cgi?id=1711054
> On May 16, 2019, at 2:17 PM, Nir Soffer <[email protected]> wrote: > > On Thu, May 16, 2019 at 10:12 PM Darrell Budic <[email protected] > <mailto:[email protected]>> wrote: > On May 16, 2019, at 1:41 PM, Nir Soffer <[email protected] > <mailto:[email protected]>> wrote: >> >> On Thu, May 16, 2019 at 8:38 PM Darrell Budic <[email protected] >> <mailto:[email protected]>> wrote: >> I tried adding a new storage domain on my hyper converged test cluster >> running Ovirt 4.3.3.7 and gluster 6.1. I was able to create the new gluster >> volume fine, but it’s not able to add the gluster storage domain (as either >> a managed gluster volume or directly entering values). The created gluster >> volume mounts and looks fine from the CLI. Errors in VDSM log: >> >> ... >> 2019-05-16 10:25:09,584-0500 ERROR (jsonrpc/5) [storage.fileSD] Underlying >> file system doesn't supportdirect IO (fileSD:110) >> 2019-05-16 10:25:09,584-0500 INFO (jsonrpc/5) [vdsm.api] FINISH >> createStorageDomain error=Storage Domain target is unsupported: () >> from=::ffff:10.100.90.5,44732, flow_id=31d993dd, >> task_id=ecea28f3-60d4-476d-9ba8-b753b7c9940d (api:52) >> >> The direct I/O check has failed. >> >> >> So something is wrong in the files system. >> >> To confirm, you can try to do: >> >> dd if=/dev/zero of=/path/to/mountoint/test bs=4096 count=1 oflag=direct >> >> This will probably fail with: >> dd: failed to open '/path/to/mountoint/test': Invalid argument >> >> If it succeeds, but oVirt fail to connect to this domain, file a bug and we >> will investigate. >> >> Nir > > Yep, it fails as expected. Just to check, it is working on pre-existing > volumes, so I poked around at gluster settings for the new volume. It has > network.remote-dio=off set on the new volume, but enabled on old volumes. > After enabling it, I’m able to run the dd test: > > [root@boneyard mnt]# gluster vol set test network.remote-dio enable > volume set: success > [root@boneyard mnt]# dd if=/dev/zero of=testfile bs=4096 count=1 oflag=direct > 1+0 records in > 1+0 records out > 4096 bytes (4.1 kB) copied, 0.0018285 s, 2.2 MB/s > > I’m also able to add the storage domain in ovirt now. > > I see network.remote-dio=enable is part of the gluster virt group, so > apparently it’s not getting set by ovirt duding the volume creation/optimze > for storage? > > I'm not sure who is responsible for changing these settings. oVirt always > required directio, and we > never had to change anything in gluster. > > Sahina, maybe gluster changed the defaults? > > Darrell, please file a bug, probably for RHHI. > > Nir
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