
On Thu, May 16, 2019 at 8:38 PM Darrell Budic <budic@onholyground.com> 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. This is the code doing the check: 98 def validateFileSystemFeatures(sdUUID, mountDir): 99 try: 100 # Don't unlink this file, we don't have the cluster lock yet as it 101 # requires direct IO which is what we are trying to test for. This 102 # means that unlinking the file might cause a race. Since we don't 103 # care what the content of the file is, just that we managed to 104 # open it O_DIRECT. 105 testFilePath = os.path.join(mountDir, "__DIRECT_IO_TEST__") 106 oop.getProcessPool(sdUUID).directTouch(testFilePath) 107 except OSError as e: 108 if e.errno == errno.EINVAL: 109 log = logging.getLogger("storage.fileSD") 110 log.error("Underlying file system doesn't support" 111 "direct IO") 112 raise se.StorageDomainTargetUnsupported() 113 114 raise The actual check is done in ioprocess, using: 319 fd = open(path->str, allFlags, mode); 320 if (fd == -1) { 321 rv = fd; 322 goto clean; 323 } 324 325 rv = futimens(fd, NULL); 326 if (rv < 0) { 327 goto clean; 328 } With: allFlags = O_WRONLY | O_CREAT | O_DIRECT See: https://github.com/oVirt/ioprocess/blob/7508d23e19aeeb4dfc180b854a5a92690d2e... According to the error message: Underlying file system doesn't support direct IO We got EINVAL, which is possible only from open(), and is likely an issue opening the file with O_DIRECT. 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
On May 16, 2019, at 11:55 AM, Nir Soffer <nsoffer@redhat.com> wrote:
On Thu, May 16, 2019 at 7:42 PM Strahil <hunter86_bg@yahoo.com> wrote:
Hi Sandro,
Thanks for the update.
I have just upgraded to RC1 (using gluster v6 here) and the issue I detected in 4.3.3.7 - where gluster Storage domain fails creation - is still present.
What is is this issue? can you provide a link to the bug/mail about it?
Can you check if the 'dd' command executed during creation has been
recently modified ?
I've received update from Darrell (also gluster v6) , but haven't received an update from anyone who is using gluster v5 -> thus I haven't opened a bug yet.
Best Regards, Strahil Nikolov On May 16, 2019 11:21, Sandro Bonazzola <sbonazzo@redhat.com> wrote:
The oVirt Project is pleased to announce the availability of the oVirt 4.3.4 First Release Candidate, as of May 16th, 2019.
This update is a release candidate of the fourth in a series of stabilization updates to the 4.3 series. This is pre-release software. This pre-release should not to be used inproduction.
This release is available now on x86_64 architecture for: * Red Hat Enterprise Linux 7.6 or later * CentOS Linux (or similar) 7.6 or later
This release supports Hypervisor Hosts on x86_64 and ppc64le architectures for: * Red Hat Enterprise Linux 7.6 or later * CentOS Linux (or similar) 7.6 or later * oVirt Node 4.3 (available for x86_64 only)
Experimental tech preview for x86_64 and s390x architectures for Fedora 28 is also included.
See the release notes [1] for installation / upgrade instructions and a list of new features and bugs fixed.
Notes: - oVirt Appliance is already available - oVirt Node is already available[2]
Additional Resources: * Read more about the oVirt 4.3.4 release highlights: http://www.ovirt.org/release/4.3.4/ * Get more oVirt Project updates on Twitter: https://twitter.com/ovirt * Check out the latest project news on the oVirt blog: http://www.ovirt.org/blog/
[1] http://www.ovirt.org/release/4.3.4/ [2] http://resources.ovirt.org/pub/ovirt-4.3-pre/iso/
-- Sandro Bonazzola
MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV
Red Hat EMEA <https://www.redhat.com/> sbonazzo@redhat.com <https://red.ht/sig> <https://redhat.com/summit>
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