I'm trying to run two MonetDB databases simoultaneously in Windows.
I changed the database name in M5server.bat to mydb, and added -database=mydb to mclient.bat
Then I copied the M5server.bat file and changed the farm to mydb2. I also copied the mclient.bat file and added -database=mydb2.
I run the two server bats to start the two databases and that seems to work fine (no errors).
Then I run the first mclient.bat and it connects to the server with no issues.
But when I run the copied mclient.bat and try to connect using user/password monetdb/monetdb, I get the following error and cannot connect:
request for database 'mydb2', but this is database 'mydb', did
you mean to connect to monetdbd instead?
How to run two databases simoultaneously in Windows? How to connect to two databases at the same time?
You should use different ports for different databases:
Example db1:
mserver5.bat file
--set "mapi_port=50001"
mclient.bat file
-p 50001
Example db2:
mserver5.bat file
--set "mapi_port=50002"
mclient.bat file
-p 50002
Related
I have a local mongodb 4.0 instance running with a collection called test^3.0 under patternbuilder database.
I'm trying to export the content of the collection to a json file to be migrated to another server instance.
I've downloaded Mongo Database Tools version 4.0.
When running on the local server the following command:
mongoexport --db patternbuilder --collection test^3.0
I get the following response:
2021-04-27T20:51:40.018+0300 connected to: mongodb://localhost/
2021-04-27T20:51:40.172+0300 exported 0 records
No matter what I tried on the command line switches - I still get 0 records exported.
Here is a snapshot of the local host server from Robot 3T
Why?
Ok. Found the issue...
As I am on a windows machine, the ^ char is invalid in the command line.
So running the below works just fine.
mongoexport --db patternbuilder --collection "test^3.0"
Thanks
I have a Hortonworks Hadoop cluster where the data nodes are on a separate network off of the master/head node. The only way to access the data nodes is through the master node or an edge node. From the edge node, I execute the hive command to connect into my hive database.
I cannot connect to the hive database from my desktop with DBeaver (4.3.0, 64-bit Windows) or the hive command line interface. Through DBeaver, I tried creating an SSH tunnel to my edge node and continually receive "Could not open client transport with JDBC Uri. jdbc:hive2://127.0.0.1:[port#]/[database].
Configuration for Hive/Apache Hive driver:
General Tab:
Host: dataNodeName
Port: 10000
Database/Schema: databaseName
User name: myUID
SSH Tunnel Tab (Network page):
Checked Use SSH Tunnel
Host/IP: edgeNodeServerName
Port: 22
User Name: myUID
Authentication Method: Password
Password: myPWD
Advanced
Local port: 0
Keep-Alive interval (ms): 0
When I select "Test Connection" with local port set to "0", I receive the above error message with random port numbers. If I set the local port to "10000", I receive the above error with port number "10000".
It looks like DBeaver is ignoring the generic JDBC connection settings--the host name in the created JDBC string is 127.0.0.1 instead of the data node name.
What am I missing? How do I setup DBeaver to access a Hive database located on a "hidden" network?
Is your hostname configured with the IP address mentioned in the jdbc connect syntax (127.0.0.1)?
Are you able to connect to beeline from your Unix shell?
Syntax to connect to beeline(hiveserver2):
beeline -u jdbc:hive2://<hostname>:<hive listener port>/<database> -n username> -p <password>
If you're able to connect to beeline, you should be able to connect to hive using same port number and host from DBeaver.
Hive listener port by default is configured on 10000, but there's a possibility that your admin can change the port number. Check the port number in hive-site.xml, or get it from admin.
Could you please uncheck the SSH tunnel and try?
This link has all the setup from scratch, please check if you have missed any step.
https://www.linkedin.com/pulse/query-hive-hiveserver2-from-windows-using-universal-database-nimmala
Not sure if your environment is Kerberized or not but assuming it is -
Following is what worked for me while connecting to Cloudera -
Fetch the krb5.conf or krb5.ini from your admins and place it in some directory. I normally put the file in a location where I put my keytabs.
Create jaas.conf file and place it at the same location(or the location of your choice)
jaas.conf must look like below(copy paste) -
Client {
com.sun.security.auth.module.Krb5LoginModule required
debug=true
doNotPrompt=true
useKeyTab=true
keyTab="C:\Users{user}\krb5cc_{user}"
useTicketCache=true
renewTGT=true
principal="{user}#DOMAIN.ORG" ;
};
Edit your dbeaver.ini file and provide the reference to both of this files(append the following lines to existing dbeaver.ini). Make sure you backup dbeaver.ini, with re installations or replacing with newer version, dbeaver.ini may get replaced, in that case you can copy the lines below from your backup dbeaver.ini file -
-Djavax.security.auth.useSubjectCredsOnly=false
-Djava.security.krb5.debug=true
-Dsun.security.krb5.debug=true
-Djava.security.krb5.conf=C:\Users{User}\Documents\Keytabs\krb5.conf
-Djava.security.auth.login.config=C:\Users{User}\Documents\Keytabs\jaas.conf
Last Step(You may need or may not)
I init my keytab before connecting. So I use Shell Commands -
Press F4 after creating the connection
Make sure in user you just put the user name for which you are initializing the keytab and nothing else. It should not be {user}#domain.org.
Use the shell commands to init the keytab
I also was having trouble configuring DBeaver to Hive, my solution was to use Cloudera's ODBC Driver. It worked a lot better then the JDBC drivers (auto-complete working, quicker, no need to run kinit), and I could automatize its creation.
The only problem is that you must be admin to install it.
When I try to connect to my postgresql database with psql I receive the error message:
D:\>psql -U postgres
psql: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/tmp/.s.PGSQL.5112"?
A similar error I get when using createdb:
createdb: could not connect to database template1: could not connect to server: No such file or directory
next two lines are identical to the psql error.
I can start pgadminIII without problems and access my databases. when I check the properties of the connection it uses port 5432. When using process explorer I see about 5 postgresql processes, though none accessing port 5432. The solutions I found in this forum are about linux/osx platforms, which I am not able to translate into a windows solution.
Could anybody tell what is wrong/what I am doing wrong and suggest a solution?
Thanks for your time.
My application uses the blazer gem for visualizing DB queries.
During the setup I've encountered the following error:
FATAL: no pg_hba.conf entry for host "111.22.33.44", user "blazer", database "my_db", SSL off
My application is hosted on EngineYard and uses PostgreSQL.
How can I find and modify the pg_hba.conf on EngineYard?
upd
I do have SSH access to EngineYard cloud.
Instance: General Purpose (M3) Large.
OS: EngineYard's Gentoo.
You can try the following steps. I've assumed that your DB name is my_db.
Connect to the instance via SSH (the link can be found on the EngineYard environment page)
Connect to the
database as superuser psql -U postgres -h localhost -d
my_db. If you don't have the password, check your database secrets here /data/my_db/current/config/database.yml
After connecting to DB identify location of hba file by typing SHOW
hba_file;
Quit psql by typing \q
Use previously identified path to open the hba_file file and add the missing user. E.g via vim sudo vim /db/postgresql/9.5/data/pg_hba.conf. Note the sudo command
The use should be added under # IPv4 postgres
user for 10.x with md5:
Connect to the database again
Reload the configuration via select pg_reload_conf(); command
After all steps are performed, Blazer queries should be accessible.
Hi I am working on a project in which we have oracle DB that is hosted on one machine and java application on other machine. both machines have UNIX OS.i want to develop a shell script that will use DB query and generate a report but i dont have any client(SQLplus) installed on both the machine. so let me know how can i connect to DB and where shud i develop scirpt like on DB unix machine or application machine.
sqlplus -s "/as sysdba
this is use of sql plus i dont have on any machine..
if you have ssh access on both the machines you could run virtually any command(through ssh) you could on the machine itself:
ssh user#server1 "ls ~/"
for example the above will give you a listing of files in "user"s home directory on server1..