how to save stateless disk
by Jiří Sléžka
Hi,
I have one vm configured as stateless (useful for example for testing
ansible deploying). But now I am in the middle of work and we have
planned power outage. If I power down this wm now I will lost my work.
It looks like I am unable to create snapshot if vm is in stateless
state. Is there any trick how to not loose my stateless state?
Is it RFE worth problem?
Cheers,
Jiri
3 years, 11 months
How to upgrade my cluster to 4.4 without pain (it will be useful not only to me)
by Patrick Lomakin
We have four hosts with self-hosted engines. Installed version of the engine 4.3.9. I have the power reserve to migrate all virtual machines to three hosts and spend on construction on the remaining host. I really want someone to help me make a plan to upgrade and upgrade to version 4.4 without pain. I will describe the configuration in more detail: 4 hosts where ovirt node 4.3.9 was deployed, and then one of them has an ovirt engine with a control panel deployed. In the process the storage was added and everything works fine. In the ovirt settings, when adding a host, I deployed a backup engine (gray crown icon). Backup engine is available on each host and was specially tested when one of the hosts was turned off. "Now as I think it will update and there will be questions immediately." 1. My first step is to remove a free host from the control panel and deploy ovirt node (4.4) on it 2. Next, the question arises: since I have to restore the new engine from backup 4.3.9, will it not
show a version incompatibility? 3. If I need to restore the backup, then logically I have to disable all my engines and then restore? 4. When I restore the engine, will my hosts and virtual machines go nowhere? Will hosts with old version 4.3.9 be available?
Please do not criticize me and understand correctly - there are over 100 virtual machines with important data. A rough plan could help me minimize serious errors. In addition, I could share my upgrade experience with the real configuration, which could help both developers and administrators. Regards!
3 years, 11 months
Issues encountered performing HE install on 4.3
by Alan G
Hi,
I hit a few issues while performing a recent HE install of 4.3. While I managed to find solutions/workarounds to all the problems I thought I might share them here
* As defined in the Ansible defaults the temp dir for building the local HE VM is /var/tmp. I was 80M short of the required space and there did not appear to be a (supported) way to specify a different location. I ended up having to do a bind mount of /var/tmp to get me through the install. Would be nice to be able to specify a custom location.
* Permissive umask required. Our CIS CentOS 7 build requires that default umask is 027. This breaks the installer as it creates the VM image under /var/tmp as root and cannot then access it as qemu user. As the temp files are cleaned up on failure it took me a while to track this one down. My solution was to temporarily set the umask to 022 for the session while running the installer. It would be nice if the installer either handled this by doing a chmod/chown as required, or at least doing a umask pre-check and failing with a meaningful error.
* SSH root login required on host. Again for CIS we have "PermitRoologin no" configured in sshd. This means the add host task fails on the Engine, but instead of a hard failure we get a timeout on the installer. Which left me chasing some imagined routing/bridging/DNS issue. Eventually I realised I could get to the engine logs and found the issue but took several hours. Would be nice if the installer could either support a sudo option or at least perform a root login pre-check and fail with a meaningful error.
Thanks,
Alan
3 years, 11 months
Bug with ovirt-hosted-engine-setup
by dan.creed＠thecreeds.net
This is 100% repeatable for me. Brand new environment, all using the ovirt node ISO. 4.3.9 downloaded a couple of days ago.
[ ERROR ] fatal: [localhost]: FAILED! => {"attempts": 5, "changed": true, "cmd": ["hosted-engine", "--reinitialize-lockspace", "--force"], "delta": "0:00:00.412864", "end": "2020-05-19 09:23:03.856435", "msg": "non-zero return code", "rc": 1, "start": "2020-05-19 09:23:03.443571", "stderr": "Traceback (most recent call last):\n File \"/usr/lib64/python2.7/runpy.py\", line 162, in _run_module_as_main\n \"__main__\", fname, loader, pkg_name)\n File \"/usr/lib64/python2.7/runpy.py\", line 72, in _run_code\n exec code in run_globals\n File \"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_setup/reinitialize_lockspace.py\", line 30, in <module>\n ha_cli.reset_lockspace(force)\n File \"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py\", line 286, in reset_lockspace\n stats = broker.get_stats_from_storage()\n File \"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py\", line 146, in get_stats_from_storage\n result = self
._proxy.get_stats()\n File \"/usr/lib64/python2.7/xmlrpclib.py\", line 1233, in __call__\n return self.__send(self.__name, args)\n File \"/usr/lib64/python2.7/xmlrpclib.py\", line 1591, in __request\n verbose=self.__verbose\n File \"/usr/lib64/python2.7/xmlrpclib.py\", line 1273, in request\n return self.single_request(host, handler, request_body, verbose)\n File \"/usr/lib64/python2.7/xmlrpclib.py\", line 1301, in single_request\n self.send_content(h, request_body)\n File \"/usr/lib64/python2.7/xmlrpclib.py\", line 1448, in send_content\n connection.endheaders(request_body)\n File \"/usr/lib64/python2.7/httplib.py\", line 1052, in endheaders\n self._send_output(message_body)\n File \"/usr/lib64/python2.7/httplib.py\", line 890, in _send_output\n self.send(msg)\n File \"/usr/lib64/python2.7/httplib.py\", line 852, in send\n self.connect()\n File \"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/unixrpc.py\", line 60, in connect\n self.
sock.connect(base64.b16decode(self.host))\n File \"/usr/lib64/python2.7/socket.py\", line 224, in meth\n return getattr(self._sock,name)(*args)\nsocket.error: [Errno 2] No such file or directory", "stderr_lines": ["Traceback (most recent call last):", " File \"/usr/lib64/python2.7/runpy.py\", line 162, in _run_module_as_main", " \"__main__\", fname, loader, pkg_name)", " File \"/usr/lib64/python2.7/runpy.py\", line 72, in _run_code", " exec code in run_globals", " File \"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_setup/reinitialize_lockspace.py\", line 30, in <module>", " ha_cli.reset_lockspace(force)", " File \"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py\", line 286, in reset_lockspace", " stats = broker.get_stats_from_storage()", " File \"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py\", line 146, in get_stats_from_storage", " result = self._proxy.get_stats()", " File \"/usr/lib64/python2.7/
xmlrpclib.py\", line 1233, in __call__", " return self.__send(self.__name, args)", " File \"/usr/lib64/python2.7/xmlrpclib.py\", line 1591, in __request", " verbose=self.__verbose", " File \"/usr/lib64/python2.7/xmlrpclib.py\", line 1273, in request", " return self.single_request(host, handler, request_body, verbose)", " File \"/usr/lib64/python2.7/xmlrpclib.py\", line 1301, in single_request", " self.send_content(h, request_body)", " File \"/usr/lib64/python2.7/xmlrpclib.py\", line 1448, in send_content", " connection.endheaders(request_body)", " File \"/usr/lib64/python2.7/httplib.py\", line 1052, in endheaders", " self._send_output(message_body)", " File \"/usr/lib64/python2.7/httplib.py\", line 890, in _send_output", " self.send(msg)", " File \"/usr/lib64/python2.7/httplib.py\", line 852, in send", " self.connect()", " File \"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/unixrpc.py\", line 60, in connect", " self.sock.connect(base
64.b16decode(self.host))", " File \"/usr/lib64/python2.7/socket.py\", line 224, in meth", " return getattr(self._sock,name)(*args)", "socket.error: [Errno 2] No such file or directory"], "stdout": "", "stdout_lines": []}
[ ERROR ] Failed to execute stage 'Closing up': Failed executing ansible-playbook
3 years, 11 months
oVirt hosted engine install error: Failed to verify Power Management configuration
by fawzi＠kdsplumbing.com
Hello,
i am new to ovirt and i am trying to install it on minimal-install centos 7.
i have been able to iron out all the wrinkles to create the host-engine, except for this error:
[ ERROR ] fatal: [localhost]: FAILED! => {"changed": false, "msg": "The host has been set in non_operational status, deployment errors: code 505: Host ovirt.kdsplumbing.com installation failed. Failed to configure management network on the host., code 9000: Failed to verify Power Management configuration for Host ovirt.kdsplumbing.com., fix accordingly and re-deploy."}
can someone layout what this issue is all about or point me in the right direction? i have been battling ith this for 2 days now, without any clue on what it is about.
thanks
3 years, 11 months
Getting the same bug in 4.4 as I did in 4.3.. brand new install 100% repeatable for me.
by dan.creed＠thecreeds.net
Brand new install, I get past the gluster setup, setting up the the hosted VM, get to finalize and hits this issue with lockspace every time.
[ INFO ] TASK [ovirt.hosted_engine_setup : Initialize lockspace volume]
[ ERROR ] fatal: [localhost]: FAILED! => {"attempts": 5, "changed": true, "cmd": ["hosted-engine", "--reinitialize-lockspace", "--force"], "delta": "0:00:00.302914", "end": "2020-05-21 14:23:50.413353", "msg": "non-zero return code", "rc": 1, "start": "2020-05-21 14:23:50.110439", "stderr": "Traceback (most recent call last):\n File \"/usr/lib64/python3.6/runpy.py\", line 193, in _run_module_as_main\n \"__main__\", mod_spec)\n File \"/usr/lib64/python3.6/runpy.py\", line 85, in _run_code\n exec(code, run_globals)\n File \"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_setup/reinitialize_lockspace.py\", line 30, in <module>\n ha_cli.reset_lockspace(force)\n File \"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/client/client.py\", line 286, in reset_lockspace\n stats = broker.get_stats_from_storage()\n File \"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py\", line 148, in get_stats_from_storage\n result = self._proxy.get_stats()\n File \"/usr/li
b64/python3.6/xmlrpc/client.py\", line 1112, in __call__\n return self.__send(self.__name, args)\n File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1452, in __request\n verbose=self.__verbose\n File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1154, in request\n return self.single_request(host, handler, request_body, verbose)\n File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1166, in single_request\n http_conn = self.send_request(host, handler, request_body, verbose)\n File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1279, in send_request\n self.send_content(connection, request_body)\n File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1309, in send_content\n connection.endheaders(request_body)\n File \"/usr/lib64/python3.6/http/client.py\", line 1249, in endheaders\n self._send_output(message_body, encode_chunked=encode_chunked)\n File \"/usr/lib64/python3.6/http/client.py\", line 1036, in _send_output\n self.send(msg)\n File \"/usr/lib64/python3.6/http/client.py\
", line 974, in send\n self.connect()\n File \"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/unixrpc.py\", line 74, in connect\n self.sock.connect(base64.b16decode(self.host))\nFileNotFoundError: [Errno 2] No such file or directory", "stderr_lines": ["Traceback (most recent call last):", " File \"/usr/lib64/python3.6/runpy.py\", line 193, in _run_module_as_main", " \"__main__\", mod_spec)", " File \"/usr/lib64/python3.6/runpy.py\", line 85, in _run_code", " exec(code, run_globals)", " File \"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_setup/reinitialize_lockspace.py\", line 30, in <module>", " ha_cli.reset_lockspace(force)", " File \"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/client/client.py\", line 286, in reset_lockspace", " stats = broker.get_stats_from_storage()", " File \"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py\", line 148, in get_stats_from_storage", " result = self._proxy.get_stats()", " File \"/usr/lib64/
python3.6/xmlrpc/client.py\", line 1112, in __call__", " return self.__send(self.__name, args)", " File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1452, in __request", " verbose=self.__verbose", " File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1154, in request", " return self.single_request(host, handler, request_body, verbose)", " File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1166, in single_request", " http_conn = self.send_request(host, handler, request_body, verbose)", " File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1279, in send_request", " self.send_content(connection, request_body)", " File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1309, in send_content", " connection.endheaders(request_body)", " File \"/usr/lib64/python3.6/http/client.py\", line 1249, in endheaders", " self._send_output(message_body, encode_chunked=encode_chunked)", " File \"/usr/lib64/python3.6/http/client.py\", line 1036, in _send_output", " self.send(msg)", " File \"/usr/lib
64/python3.6/http/client.py\", line 974, in send", " self.connect()", " File \"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/unixrpc.py\", line 74, in connect", " self.sock.connect(base64.b16decode(self.host))", "FileNotFoundError: [Errno 2] No such file or directory"], "stdout": "", "stdout_lines": []}
3 years, 11 months
4.4 bug? Seems 100% repeatable
by dan.creed＠thecreeds.net
[ ERROR ] fatal: [localhost]: FAILED! => {"changed": false, "msg": "The host has been set in non_operational status, deployment errors: code 505: Host quigonn installation failed. Failed to configure management network on the host., code 1120: Failed to configure management network on host quigonn due to setup networks failure., code 9000: Failed to verify Power Management configuration for Host quigonn., code 10802: VDSM quigonn command HostSetupNetworksVDS failed: Internal JSON-RPC error: {'reason': 'Three or more nameservers are only supported when using either IPv4 or IPv6 nameservers but not both.'}, fix accordingly and re-deploy."}
This has me utterly confused, I only have 1 name server specified in /etc/resolv.conf
Not sure where it's getting this from?
3 years, 11 months
