Bug 1841076
| Summary: | vdsm should use the switch '--inet6' for querying gluster volume info with '--remote-host' | ||
|---|---|---|---|
| Product: | [oVirt] vdsm | Reporter: | SATHEESARAN <sasundar> |
| Component: | Gluster | Assignee: | Kaustav Majumder <kmajumde> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | SATHEESARAN <sasundar> |
| Severity: | urgent | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 4.40.16 | CC: | aoconnor, bugs, godas, kmajumde, reliezer, rhs-bugs |
| Target Milestone: | ovirt-4.4.1 | Keywords: | TestBlocker |
| Target Release: | 4.40.21 | Flags: | sasundar:
ovirt-4.4?
sasundar: blocker? sasundar: planning_ack? sbonazzo: devel_ack+ sasundar: testing_ack+ |
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | vdsm-4.40.22-1.el8ev.x86_64 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | 1840971 | Environment: | |
| Last Closed: | 2020-08-05 06:25:05 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | Gluster | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 1840971 | ||
4.4.0 has been released, moving to 4.4.1 @Kaustav, can you please work on this? For the initial testing the hostnames were resolved locally and now I have tested with DNS hostnames and even now, I see that the deployment fails at the same step Added patch please review. *** Bug 1847092 has been marked as a duplicate of this bug. *** Tested with vdsm-4.40.21-1.el8ev.x86_64 On a IPv4 only setup, this check fails and adds '--inet6' to IPv4 hostnames as well, which leads to failure to mount gluster volumes patch is merged and the vdsm build is available ( vdsm-4.40.22-1.el8ev.x86_64 ) Tested with vdsm-4.40.22-1.el8ev.x86_64 When using IPV6 FQDN, the additional token for gluster command '--inet6' is used when querying for volume information This bugzilla is included in oVirt 4.4.1 release, published on July 8th 2020. Since the problem described in this bug report should be resolved in oVirt 4.4.1 release, it has been closed with a resolution of CURRENT RELEASE. If the solution does not work for you, please open a new bug report. |
Description of problem: ------------------------ When attempting for RHHI-V deployment with static IPv6, gluster deployment is successful while the hosted-engine deployment fails Version-Release number of selected component (if applicable): -------------------------------------------------------------- vdsm-gluster-4.40.16-1.el8ev.x86_64 How reproducible: ----------------- Always Steps to Reproduce: ------------------ 1. Start RHHI-V deployment with static IPV6 Actual results: --------------- HE deployment fails while creating the target storage domain Expected results: ----------------- HE deployment should be successful Additional info: --- Additional comment from SATHEESARAN on 2020-05-28 03:11:14 UTC --- Error message in supervdsm.log MainProcess|jsonrpc/6::ERROR::2020-05-28 02:38:55,667::supervdsm_server::97::SuperVdsm.ServerCallback::(wrapper) Error in volumeInfo Traceback (most recent call last): File "/usr/lib/python3.6/site-packages/vdsm/gluster/cli.py", line 111, in _execGluster return commands.run(cmd) File "/usr/lib/python3.6/site-packages/vdsm/common/commands.py", line 101, in run raise cmdutils.Error(args, p.returncode, out, err) vdsm.common.cmdutils.Error: Command ['/usr/sbin/gluster', '--mode=script', 'volume', 'info', '--remote-host=host1-storage.lab.eng.blr.redhat.com', 'engine', '--xml'] failed with rc=1 out=b'Connection failed. Please check if gluster daemon is operational.\n' err=b'' This I think is because of gluster not supporting IPV6 for the command. [root@ ]# gluster --remote-host=host1-storage.lab.eng.blr.redhat.com volume info engine Connection failed. Please check if gluster daemon is operational. [root@ ]# gluster volume info engine Volume Name: engine Type: Replicate Volume ID: 5f2bcbab-3ef8-4cf6-be8e-f8cafe345c92 Status: Started Snapshot Count: 0 Number of Bricks: 1 x 3 = 3 Transport-type: tcp Bricks: Brick1: host1-storage.lab.eng.blr.redhat.com:/gluster_bricks/engine/engine Brick2: host2-storage.lab.eng.blr.redhat.com:/gluster_bricks/engine/engine Brick3: host3-storage.lab.eng.blr.redhat.com:/gluster_bricks/engine/engine Options Reconfigured: performance.client-io-threads: on nfs.disable: on storage.fips-mode-rchecksum: on transport.address-family: inet6 performance.quick-read: off performance.read-ahead: off performance.io-cache: off performance.low-prio-threads: 32 network.remote-dio: off cluster.eager-lock: enable cluster.quorum-type: auto cluster.server-quorum-type: server cluster.data-self-heal-algorithm: full cluster.locking-scheme: granular cluster.shd-max-threads: 8 cluster.shd-wait-qlength: 10000 features.shard: on user.cifs: off cluster.choose-local: off client.event-threads: 4 server.event-threads: 4 storage.owner-uid: 36 so the '--remote-host' doesn't support IPv6 as I observe. --- Additional comment from SATHEESARAN on 2020-05-28 05:02:54 UTC --- This happens as the 'gluster --remote-host' doesn't tries to resolve the hostname in /etc/hosts for IPV6, but it does for IPV4 [root@dhcp35-174 ~]# gluster --remote-host=2620:52:0:4622:5054:ff:fe28:6b23 volume list <-- works for IPV6 testrep [root@dhcp35-174 ~]# grep 2620:52:0:4622:5054:ff:fe28:6b23 /etc/hosts 2620:52:0:4622:5054:ff:fe28:6b23 myhost.lab.eng.blr.redhat.com myhost <----- /etc/hosts/ entry for myhost.lab.eng.blr.redhat.com [root@dhcp35-174 ~]# gluster --remote-host=myhost.lab.eng.blr.redhat.com volume list <-- fails for IPV6 hostnames Connection failed. Please check if gluster daemon is operational. Works for all cases of IPV4 [root@dhcp35-174 ~]# gluster --remote-host=10.70.35.174 volume list testrep [root@dhcp35-174 ~]# echo 10.70.35.174 newhost.lab.eng.blr.redhat.com >> /etc/hosts [root@dhcp35-174 ~]# gluster --remote-host=newhost.lab.eng.blr.redhat.com volume list testrep --- Additional comment from SATHEESARAN on 2020-05-28 09:51:45 UTC --- Following is the comment from Sanju: ------------------------------------- I see that the command is failing if we specify a hostname instead of IPv6: [root@newhost ~]# gluster --remote-host=myhost.lab.eng.blr.redhat.com volume list Connection failed. Please check if gluster daemon is operational. [root@newhost ~]# when we add --inet6 option to the cli, it works: [root@newhost ~]# gluster --remote-host=myhost.lab.eng.blr.redhat.com --inet6 volume list testrep [root@newhost ~]# I believe, this option is added to differentiate whether the given hostname corresponds to IPv4 or IPv6 address. @Sas, Do you think any changes are needed? Thanks, Sanju ------------------------------- So vdsm-gluster code should try to use '--inet6' when the host uses IPV6 hostnames