I have had a MineOS setup using the pre-packaged Turnkey bundle on a dedicated system and it worked at first, but recently the system kicked everyone off the server. Any attempt to reconnect give the message: "Authentication servers are down, try again later." and 4 days later, same issue.
From what I can tell this means that the server can't verify my user ID with Mojang's servers for some reason. I checked and there are no disruptions on Mojang's servers, so it must be my system. I tried disabling online-mode and it said "You are not whitelisted on this server." and still wouldn't let any one in. Im thinking this is an error in the firewall configuration but I dont know how or where to start with that. I have already verified that my router is not blocking access to Mojang's servers so it must be within my system configurations somewhere.
What confuses me is why it worked at first and then quit seemingly at random. Any thoughts on what is causing this and how to fix it? thanks in advance for any assistance
turns out the dns server had gotten messed up when changing a static ip. fixed that and everything started working again.
Related
I'm currently trying to access a remote server using VS Code's Remote SSH extension. I haven't had a problem when using it before (that was around a month ago) but today when I tried to access the server I ran into some trouble.
I have the hostname and everything configured in a config file, and so I just click on that option and type in the password. However, VS Code seems to be stuck on "Opening Remote..." for the past hour or so. The dialogue I get in the terminal is as follows:
username#host's password:
Running remote connection script
Acquiring lock on /home/username/.vscode-server/bin/abcdefghijklmnop1234567989/
vscode-remote-lock.abcdefghijklmnop1234567989
Installing to /home/username/.vscode-server/bin/abcdefghijklmnop1234567989...
Downloading with wget
Does anybody know what the problem might be? Is this normal?
EDIT
As soon as I posted this the connection was successfully made. However, I would also like to still know what the problem was and if it normally takes around an hour, and what this process might be doing. I also believe it would be helpful to the community overall.
Thank you.
I've faced the same issue just now and realized that firewall protection has something to do with it.
As soon as I disabled it, the remote connection was established and I managed to see my code again.
I am using ORACLE database in a windows environment and running a JSP/servlet web application in tomcat. After I do some operations with the application it gives me the following error.
ORA-12518, TNS: listener could not hand off client connection
can any one help me to identify the reason for this problem and propose me a solution?
The solution to this question is to increase the number of processes :
1. Open command prompt
2. sqlplus / as sysdba; //login sysdba user
3. startup force;
4. show parameter processes; // This shows 150(some default) processes allocated, then increase the count to 800
5. alter system set processes=800 scope=spfile;
As Tried and tested.
In my case I found that it is because I haven't closed the database connections properly in my application. Too many connections are open and Oracle can not make more connections. This is a resource limitation. Later when I check with oracle forum I could see some reasons that have mentioned there about this problem. Some of them are.
In most cases this happens due to a network problem.
Your server is probably running out of memory and need to swap memory to disk.One cause can be an Oracle process consuming too much memory.
if it is the second one, please verify large_pool_size or check dispatcher were enough for all connection.
You can refer bellow link for further details.
https://community.oracle.com/message/1874842#1874842
I ran across the same problem, in my case it was a new install of the Oracle client on a new desktop that was giving the error, other clients were working so I knew it wouldn't be a fix to the database configuration. tnsping worked properly but sqlplus failed with the ora-12518 listener error.
I had the tnsnames.ora entry with a SID instead of a service_name, then once I fixed that, still the same error and found I had the wrong service_name as well. Once I fixed that, the error went away.
If from one day to another the issue shows for no apparent reasons, add these following lines at the bottom of the listner.ora file. If your oracle_home environment variable is set like this:
(ORACLE_HOME = C:\oracle11\app\oracle\product\11.2.0\server)
The lines to add are:
ADR_BASE_LISTENER = C:\oracle11\app\oracle\
DIRECT_HANDOFF_TTC_LISTENER=OFF
I had the same problem when executing queries in my application. I'm using Oracle client with Ruby on Rails.
The problem started when I accidentally started several connections with the DB and didn't close them.
When I fixed this, everything started to work fine again.
Hope this helps another one with the same problem.
I experienced the same error after upgrading to Windows 10. I solved it by starting services for Oracle which are stopped.
Start all the services as shown in the following image:
I had the same issue. After restarting all Oracle services it worked again.
same problem encountered for me.
And from oracle server listener log, can see more information.
and I found that the SERVICE_NAME is not match the tnsnames.ora configured Service name. so I changed the application's data source configuration from SID value to Service_NAME value and it fixed.
23-MAY-2019 02:44:21 * (CONNECT_DATA=(CID=(PROGRAM=JDBC Thin Client)(HOST=__jdbc__)(USER=XXXXXX$))(SERVICE_NAME=orclaic)) * (ADDRESS=(PROTOCOL=tcp)(HOST=::1)(PORT=50818)) * establish * orclaic * 12518
TNS-12518: TNS:listener could not hand off client connection
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
64-bit Windows Error: 203: Unknown error
I had the same issue in real time application and the issue gone by itself next day. upon checking, it was found that server ran out of memory due to additional processes running.
So in my case, the reason was server run out of memory
first of all
check the listener log
check the show parameter processes vs select count(*) from v$processes;
increase the process, it may require SGA increase
;
Yesterday our extracts failed to refresh with the following message (image extract_error):
Failure: Failed 1 time. Sign in failed.
Resolution Details: Check the Data Connection page for necessary updates to an access token or embedded credentials.
I verified that all our passwords were unchanged and test connections which were successful.
The tableau dashboards now give an error message saying:
HTTP 404:
Unable to connect to the server "localhost". Check that the server is running and that you have access privileges to the requested database. (image tableau_error)
Further, when I opened the Server Status page, I saw that our one of our two Vizql, backgrounder and data servers were down. We have two of each and only one of them is active for all three of them. (image server_status)
So, I decided to remote desktop into the server and run the tabadmin status -v command and strangely it is showing that all processes are running. (image tabadmin_status)
Finally, I opened a case with Tableau Customer Portal and letting them know about this issue (they asked me send them the log.zip file) but the mean time I was trying to problem solve this issue. Any help would be really appreciated.
After trying a lot of things, one process seemed to work.
Stopped the tableau server
Configured it to run 1 Vizql server process instead of 2
Started the server again
Finally, it worked. The status page now shows all the processes are active.
Hopefully, this helps someone who is facing a similar problem.
This may be caused by a firewall issue. Since tabadmin status -v returned all as "running" the cluster is healthy and this is a false alert. The firewall rules could be allowing just the first port and not the entire range (see https://onlinehelp.tableau.com/current/server/en-us/ports.htm) to respond to requests from the application server to build that fancy table with the green and red boxes.
The firewall can be reverted/altered behind the scenes for a number of reasons, usually windows updates or regular group policy synchronization.
Try disabling the windows firewall (https://www.faqforge.com/windows-server-2016/turn-off-firewall-windows-server-2016/), or add an inbound rule allowing access to all ports if your org policy doesn't allow you to actually turn it off. (Follow the steps here, except use "All Local Ports" instead of "Specific Local Ports" https://www.parallels.com/blogs/ras/configuring-windows-server-firewall-for-parallels-ras/)
I had a similar problem and followed these similar steps that Sravee mentioned above to bring the all processes back to active.
Stopped the server
Change the configuration for VizQL server from 2 to 1
Started the server
Enter the licence key (else the server status page will show unlicensed error)
Note: This does not bring the site back but this step is for 'tricking' VizQL server
Stopped the server again
Change the VizQL configuration from 1 to 2 now.
Start the server
Enter the license key
This steps did bring back the server back to active for us. Posting to see if this helps who faces the same problem. Thank you so much.
First, I've finaly found out what the problem was but still, I decided to write this question+answer for others (because I spent 6 hours with this issue).
So, what's the problem...
I have a Cloud Foundry app (on public Bluemix) based on binary-buildpack. Two days ago, everything was OK. But not since yesterday. My app crashed (probably during restaging or something similar) and never started again. I tried to push the app again and still the same result. Really frustrating...
Something about the backend... There is a shell script in my instance that runs one binary application. Generaly, the application should connect to database server (also on public Bluemix).
The problem: Everytime I tried to start the app, it crashed immediately. This is what I found in logs: dial tcp: lookup databaseserverdomain.com on 0.0.0.0:53: server misbehaving.
There are a couple of similar problems on StackOverflow but no answer that would be helpful for me.
So, the error means that something went wrong with TCP connection. Ok, but what exactly? That's the question I'm going to answer myself...
Sounds like your binary isn't capable in properly handling connection problems. I would rather fix that part since I guess it will crash anyway when there is a connection issue.
The solution was actually simple...
I edited my shell script and add ping google.com -count 3 before launching the application to test if there is a stable network connection. This worked.
The application got 2 more seconds and it was enough for network/router/whatever to establish the connection.
Hmm.. It seems that there is something wrong with network routing on Cloud Foundry/Bluemix since yesterday.
In Business Object XI 3.0, while logging in publishing wizard I am getting following error. Any Help please
Logon Error
Transport error: Communication failure.(FWM 00001)
OK
Even CMC option is also not working. Yesterday also it was giving same problem. I had reinstalled the software. then it started working. Now today it is again giving same error. This happen second time. Please help
make sure your hosts file is right,eg 10.1.1.1 serverdomain.ping the server make sure the network is working.
It's possible that your firewall is blocking it, also double check your credentials within the cmc are correct and that there is connectivity between your database and your server. Also try connecting through the Administrative account.