I am using Ubuntu 14.04 and during cloudstack installation I am having a problem with service cloudstack-agent. It started OK but showing status cloudstack-agent is not running. please do suggest.
https://cwiki.apache.org/confluence/display/CLOUDSTACK/KVM+agent+debug , change the log level and provide log to debug
Related
On a new Windows Server 2016 PC:
signed on as administrator
Fresh install of 19c with default orcl database. No issues during install
Installed full 32-bit 11g client (needed for connection to legacy app) no install issues
added SQLNET.ALLOWED_LOGON_VERSION_SERVER = 11 to sqlnet.ora
tnsping orcl ran and showed connection
sqlplus /nolog
connect / as sysadm
returned ORA-12560 TNS Adapter: protocol adapter error
Both listener and orcl services are running (tried restarting them but still got error)
Tried setting $TNS_ADMIN and $ORACLE_HOME but error still occurs.
Tried rebooting but no change.
PATH has client oci.dll folder listed first then ORACLE HOME folder
Pulling hair out has commenced...
I'm new to Oracle database, but I had a similar problem while installing Oracle 21DB express. I kept installing and uninstalling because I could not get past the login/password. It kept giving me
"ORA-12560 TNS Adapter: protocol adapter error"
what I finally did was on my last installation, on the setup.exe, you must right click on the mouse and "run as administrator". Then everything ran perfectly. Also while researching I was told don't have more than 1 version of SQL on a machine.
I am trying to run jupyterhub on an Ubuntu 20.04 LTS server. My idea is to run python/jupyterhub in a conda virtual environment as a system service. As I want to be able to limit the resources available to individual users I installed the systemdspawner.
After installing everything and starting the jupyterhub service I can login through my web browser. However, when trying to start the server the spawner stucks and after a while I get an error message saying "Spawn failed: Timeout"
in journalctl I can see the following messages:
User logged in: me 302 POST /hub/login?next= -> /hub/spawn (me#::ffff:[my IP address]) 59.42ms
Adding role server to token: <APIToken('93c8...', user='me', client_id='jupyterhub')
Creating oauth client jupyterhub-user-me
pam_loginuid(login:session): Error writing /proc/self/loginuid: Operation not permitted
pam_loginuid(login:session): set_loginuid failed
pam_unix(login:session): session opened for user me by (uid=0)
Failed to open PAM session for me: [PAM Error 14] Cannot make/remove an entry for the specified session
Disabling PAM sessions from now on. user:me
Unit jupyter-me-singleuser in a failed state. Resetting state.
Disclaimer: My Jupyter/Python installation is replacing an former installation that was setup by someone else and got messed up a bit during time. I tried to remove everything related and start with a clean installation from scratch. However, as I had very little documentation about the old setup there is a certain risk that there might be some left-overs of the previous installation that may cause trouble.
Any ideas?
Solved it out myself. In the end the PAM related messages seem to be non-critical and were not related to the timeout at all. Instead I found a mistake in /etc/systemd/system/jupyterhub.service, where the PATH variable was not including the bin directory of my miniconda installation.
I installed the Openstack horizon(Train version) by followed guide, no error showing in my install steps. After finished install, I access "http://controller_ip/dashboard", and got an error:
The requested URL /auth/login/ was not found on this server.
Can anyone help?
this
https://bugs.launchpad.net/horizon/+bug/1853651
By adding the following to the config file (and restarting httpd), the horizon dashboard then loads without issue:
WEBROOT = '/dashboard'
I've removed the openvswitch version I had, and I downlaoded version (2.5.0) following the same steps in this link (https://github.com/mininet/mininet/wiki/Installing-new-version-of-Open-vSwitch) and instead of (OpenVSwitch 1.10) I used (OpenVSwitch 2.5.0). The installation went smoothly without error, but when I try to run mininent and got the following error. I've tried some suggestions I found online but none of them works.
ovs-vsctl: unix:/usr/local/var/run/openvswitch/db.sock: database connection failed (No such file or directory)
ovs-vsctl exited with code 1
*** Error connecting to ovs-db with ovs-vsctl
Make sure that Open vSwitch is installed, that ovsdb-server is running, and that
"ovs-vsctl show" works correctly.
You may wish to try "service openvswitch-switch start".
Could you please advise me what to do ?
Cheers,
Tom
We need 2 processes for that.
ovsdb-server
ovs-vswitchd
These 2 will be started with following command.
/usr/local/share/openvswitch/scripts/ovs-ctl start
In my case, /usr/local/share/openvswitch/scripts is the default location for ovs-ctl scriot,
Hope that helps.
I'm trying to create a database using DBCA on Oracle 11g installation on Ubuntu Linux 12.04 64 bit.
I followed the instructions here, but I get
ORA-12547: TNS Lost Contact when running DBCA.
Below are the details. Can someone assist with the solution?
Instead of using /opt/oracle as the "oracle" user home, I used /home/oracle
I did not install the libstdc++5 in 32 bit version
I did everything else the same as the posting
Installation resulted in "missing packages". I tried to do an apt-get install for these packages from ubuntu, but ubuntu says that they don't exist.
Then I saw in the instructions:
Once you will reach the "pre-reqs" screen, check "Ignore all" to continue the installation.
When running ./dbca from $ORACLE_HOME/bin, it fails with ORA-12547.
I checked $ORACLE_HOME/network/admin and listener.ora , sqlnet.ora , and tnsnames.ora all look OK.
However, I think that tnsnames.ora is not being read properly, because ./tnsping fails and the error message states that "EZ Connect" was used.
But in my sqlnet.ora , I have
names.directory_lookup = (TNSNAMES,EZCONNECT)
It should use EZ Connect only after tnsnames is tried.
Also, I sometimes get ORA-12541: No listener. I tried running ./netca. Everything is OK until I perform a test on the listener, and it fails.
I can't run ./lsnrctl. Absolutely nothing happens for this, as well as lsnrctl start, stop, status.
I can't go through sqlplus. If I run ./sqlplus , it asks me for username/password directly.
If I do ./sqlplus / as sysdba, then this results in "ORA-12547: TNS lost contact".
All environment variables are set correctly in .bashrc.
I tried re-running root.sh , but the problem is not fixed.
/etc/oratab is OK
/etc/hosts is OK, but I can't always ping the "localhost" or "127.0.0.1", or "ubuntu" or "127.0.1.1"
The same TNS or Listener errors display.
When I login in oracle (sqlplus system/pass as sysdba), I got this:
ERROR:
ORA-12547: TNS :lost contact when try to connect to Oracle.
First, I think the server is down, but I check it, it is OK. And so many body say 'chmod 6751 oracle', I did it, but I got another error:
ERROR:
ORA-01031: insufficient privileges
Enter user-name:
finally, I switch the system user from root to oracle. And I login success.
Ensure the DB is up and running and you can connect locally AS SYSDBA to the database
using Oracle binaries owner (usually oracle:oinstall Unix / Linux user). If it does not
work, probably you encounter a different problem.
1. Check privileges of an Oracle file on Unix / Linux host where database is running:
cd $ORACLE_HOME/bin
ls -ltr oracle
2. Change permissions as below:
chmod 6751 oracle
ls -ltr oracle
This code may help you lot.