I am using libzdb - Database Connection Pool Library with sqlite database. I am getting following exception :
Failed to start connection pool - database protocol 'sqlite' not supported
After ConnectionPool_start() - it goes in static int _fillPool(T p), in that it is getting falied at above statement
Connection_T con = Connection_new(P, &P->error);
My connection url is as follows :
sqlite:///home/ZDB_TESTING/zdb-test/testDb.db
Kindly help me with this problem.
This means that the SQLite library is not compiled into the libzdb library. If installing from a distribution, make sure that you select libzdb built with SQLite. If you built libzdb yourself from source, after you run ./configure make sure the output says, SQLite3: ENABLED. Otherwise you need to install SQLite on your system first.
Related
I am trying to run the example grakn migration "phone_calls" (using python and JSON files).
Before reaching there, I need to load the schema, but I am having trouble with getting the schema loaded, as shown here: https://dev.grakn.ai/docs/examples/phone-calls-schema
System:
-Mac OS 10.15
-grakn-core 1.8.3
-python 3.7.3
The grakn server is started. I checked and the 48555 TCP port is open, so I don't think there is any firewall issue. The schema file is in the same folder (phone_calls) as where the json data files is, for the next step. I am using a virtual environment. The error is below:
(project1_env) (base) tiffanytoor1#MacBook-Pro-2 onco % grakn server start
Storage is already running
Grakn Core Server is already running
(project1_env) (base) tiffanytoor1#MacBook-Pro-2 onco % grakn console --keyspace phone_calls --file phone_calls/schema.gql
Unable to create connection to Grakn instance at localhost:48555
Cause: io.grpc.StatusRuntimeException
UNKNOWN: Could not reach any contact point, make sure you've provided valid addresses (showing first 1, use getErrors() for more: Node(endPoint=/127.0.0.1:9042, hostId=null, hashCode=5f59fd46): com.datastax.oss.driver.api.core.connection.ConnectionInitException: [JanusGraph Session|control|connecting...] init query OPTIONS: error writing ). Please check server logs for the stack trace.
I would appreciate any help! Thanks!
Nevermind -- I found the solution, in case any one else runs into a similar problem. The server configuration file needs to be edited: point the data directory to your project data files (here: the phone_calls data files) & change the server IP address to your own.
I'm trying to config a connection with SQLBase with odbc driver on Windows and I never did that, but I'm getting the error:
Connection failed with SQL State: "HY092"
I'm using the Windows ODBC Administrator to try add the connection. In the field "Config Filename (INI)" of the configuration screen I put: "C:\Program Files (x86)\Centura\sql.ini" and I add "C:\Program Files (x86)\Centura\" to the PATH system variable.
In the application (.NET) I'm getting the message:
ERROR [HY092] [Gupta][ODBC Driver]Invalid attribute/option identifier
My sql.ini file has the content:
[win32client]
clientname=CWBXXX
[win32client.dll]
comdll=sqlws32
[win32client.
serverpath=server3,<SERVER_IP>,2155/<BASE_NAME>
Anyone could help me? Thank you.
Good to see you are using SQLBase . Awesome.
Two important settings to get right.
1) Make sure you are using the correct ODBC administrator
I'm guessing 32 bit in %systemdrive%\Windows\SysWoW64\odbcad32.exe.
If not , use the 64bit one in %systemdrive%\Windows\System32\odbcad32.exe.
Under System DSN tab Add the correct driver for the database. Either 'Centura SQLBase 3.6 32bit Driver' or the 'Gupta SQLBase 12.x' driver if you are running SQLBase 12.
Under the Configure Tab, specify the Data Source Name that you will use in your sql.ini. THEY MUST MATCH.
2)a. Make sure you only ever have 1 sql.ini on the client. Ever.
2)b. sql.ini needs the ODBC driver specified in the client section:
[win32client.dll]
comdll=sqlodb32
[odbcrtr]
odbctrace=off
longbuffer=32767
buffrow=10000
remotedbname=[dB Name specified in ODBC] ,
DSN=[Data Source Name specified in ODBC]
(without the square brackets eg. remotedbname=MyDatabase,DSN=MyDatasetName whatever names you have specified in ODBC admin.)
I'm having trouble connecting to a database with the ODBC.jl package. I can't tell if the problem is with my setup (more likely) or the package. The problem is that ODBC.jl can't seem to locate the correct ODBC driver.
> using ODBC
> ODBC.listdrivers()
/path/to/generic/odbc/
But I need to use a different driver than the one picked up from above.
I'm trying to use a custom connection string as follows:
>ODBC.DSN("DRIVER=path/to/driver/i/want;SERVER=myserver;USER=myuser;PASSWORD=mypass;DATABASE=somedb;")
which returns this:
[ODBC] IM002: [unixODBC][Driver Manager]Data source name not found, and no default driver specified
ERROR: ODBC.ODBCError("ODBC.API.SQLDriverConnect(dbc,window_handle,conn_string,out_conn.ptr,BUFLEN,out_buff,driver_prompt) failed; return code: -1 => SQL_ERROR ")
My understanding is that I should be able to specify the driver as done above, but this does not give the desired connection.
I have .odbc.ini and .odbcinist.ini files set-up in my home directory, which I believe are working correctly. I'm on a Suse enterprise distro. When connecting via isql i have no problems.
Any help is appreciated.
I am working on deploying a shiny application in a Docker container onto Bluemix. I am using the rocker/shiny Docker image (https://hub.docker.com/r/rocker/shiny/) as my initial starting point. I have installed unixODBC-dev, RODBC, ibm data server driver package, the ibmdbR library for R, and all needed dependencies. My only problem is that when I try to access the shiny app from a web browser it fails to execute, the error is:
Warning in odbcDriverConnect("DSN=BLUDB", :
[RODBC] ERROR: state 01000, code 0, message [unixODBC][Driver Manager]Can't open lib '/root/db2_cli_odbc_driver/dsdriver/odbc_cli_driver/linuxamd64/clidriver/lib/libdb2o.so' : file not found
Warning in odbcDriverConnect("DSN=BLUDB; :
ODBC connection failed
Error in idaInit(con) : con is not an open connection, please use idaConnect() to create an open connection to the data base.
Initially I had this same problem whenever I would try to use isql to connect to the database or try to connect from RStudio, I used ldd on that library file and found what was missing and that fixed making connections from the command line and RStudio, however my Shiny-Server still gives me the same error, is there anything I am missing?
I ended up solving the problem myself, turns out the libraries were not accessible by the shiny-server which was running as a service. I moved the db2 odbc drivers over to /usr/local/lib to make it accessible, I also ran the "ldd" command on the library mentioned in the error message and found that I had to install libxml2 as well. After doing that I simply changed my odbcinst.ini file at /etc to reference the new location of the db2 library and now it all works! Hopefully anyone else trying to deploy Shiny Apps that rely on connecting to a DB2 database will find this useful.
I'm using the RPostgreSQL 0.4 library (compiled on R 2.15.3) on R 2.15.2 under Windows 7 64-bit to interface to PostgreSQL. This works fine when connecting to my PostgreSQL databases on localhost. I'm trying to get my R code to run with a remote PostgreSQL database on Heroku. I can connect to Heroku's PostgreSQL database from the psql command shell on my machine, and it connects without a problem. I get the message:
psql (9.2.3, server 9.1.9)
WARNING: psql version 9.2, server version 9.1.
Some psql features might not work.
WARNING: Console code page (437) differs from Windows code page (1252)
8-bit characters might not work correctly. See psql reference
page "Notes for Windows users" for details.
SSL connection (cipher: DHE-RSA-AES256-SHA, bits: 256)
Clearly, psql uses SSL to connect. When I try to connect using the RPostgreSQL library routine dbConnect(), however, supplying exactly the same credentials using dname=, host=, port=, user=, password=, the connection fails with the complaint:
Error in postgresqlNewConnection(drv, ...) :
RS-DBI driver: (could not connect <user>#<hostname> on dbname <dbname>)
Calls: source ... .valueClassTest -> is -> is -> postgresqlNewConnection -> .Call
Execution halted
I know that Heroku insists on an SSL connection if you want to access their database remotely, so it seems likely that the R interface routine dbConnect() isn't trying SSL. Is there something else that I can do to get a remote connection from R to PostgreSQL on Heroku to work?
To get the JDBC URL for your heroku instance:
Get your hostname, username and password using [pg:credentials].
Your jdbc URL is going to be:
jdbc:postgresql://[hostname]/[database]?user=[user]&password=[password]&ssl=true&sslfactory=org.postgresql.ssl.NonValidatingFactory
Proceed as you would normally with JDBC.
Apparently there is a way using RJDBC. See:
http://ryepup.unwashedmeme.com/blog/2010/11/17/working-with-r-postgresql-ssl-and-mssql/
Please note that in order to connect to Heroku database with JDBC externally, it is important to set the sslfactory parameter as well. Hope Heroku team goes through it and modifies their documentation.
String dbUri = "jdbc:postgresql://ec2-54-243-202-174.compute-1.amazonaws.com:5432/**xxxxxxx**";
Properties props = new Properties();
props.setProperty("user", "**xxxxx**");
props.setProperty("password", "**xxxxx**");
props.setProperty("ssl", "true");//ssl to be set true
props.setProperty("sslfactory", "org.postgresql.ssl.NonValidatingFactory");// sslfactory to be set as shown above
Connection c=DriverManager.getConnection(dbUri,props);
See answer to related Q at https://stackoverflow.com/a/38942581. The suggestion of using RPostgres (https://github.com/rstats-db/RPostgres) instead of RPostgreSQL resolved this same issue for me.