HIVE ODBC connector settings - hadoop

I configured unixodbc to use the hive connector from cloudera in my Linux Mint machine,
but I keep receiving the following error when trying to connect to hive (e.g. using isql -v hive)
S1000][unixODBC][Cloudera][ODBC] (11560) Unable to locate SQLGetPrivateProfileString function.
[ISQL]ERROR: Could not SQLConnect
I think I set the /etc/odbcinst.ini and the ~/.odbc.ini in the correct way:
# content of /etc/odbcinst.ini
[hive]
Description = Cloudera ODBC Driver for Apache Hive (64-bit)
Driver=/opt/cloudera/hiveodbc/lib/64/libclouderahiveodbc64.so
ODBCInstLib=libodbcinst.a(libodbcinst.so.1)
UsageCount = 1
DriverManagerEncoding=UTF-16
ErrorMessagesPath=/opt/cloudera/hiveodbc/ErrorMessages/
LogLevel=0
SwapFilePath=/tmp
and my ~/.odbc.ini file contains:
[hive]
Description=Cloudera ODBC Driver for Apache Hive (64-bit) DSN
Driver = hive
ErrorMessagesPath=/opt/cloudera/hiveodbc/ErrorMessages/
# Values for HOST, PORT, KrbHostFQDN, and KrbServiceName should be set here.
# They can also be specified on the connection string.
HOST= <the host>
PORT= <the port>
Schema=<the schema>
# .. etc
Can you help me find out what is causing the error?

What does
ldd /opt/cloudera/hiveodbc/lib/64/libclouderahiveodbc64.so
Show you?
It may be that the driver is not linked to libodbcinst.so.
You could try a
LD_PRELOAD=/usr/local/libodbcinst.so
or wherever libodbcinst.so is on your machine.

Are you sure that you ODBCInstLib is set properly?
I was hitting the same issue with a Vertica driver and my libodbcinst.so.1 ended up needing an absolute path: /usr/lib/x86_64-linux-gnu/libodbcinst.so.1
I determined the path by running a Find for libodbcinst.so.

Related

How to create ODBC "DSN" for cross-platform testing?

I need a simple ODBC test scenario on WIN which I can configure very simply and be assured it is working in support of another question at Unix.SE.
In a nutshell I'm trying to setup a PyODBC/Python script connection from Debian 10 (192.168.1.2) to Windows 10 in KVM/QEMU virtual system (192.168.1.12).
First, on the Windows 10/KVM, I see the ODBC Data Source Administrator has a tab File DSN and Microsoft Text Driver. Can I use FileDSN to test Python PyODBC connection to ODBC using a simple CSV file in place of Server?? (My research with ODBC only finds running server instances).
Next, what I tried:
On Debian I installed ODBC Microsoft driver for Linux.
Shutdown the Windows 10 firewall, and I can ping in both directions:
$nmap -p 22 192.168.1.12 # Deb to Win
> Test-NetConnection 192.168.1.2 -p 22 # Win to Deb
On Windows 10/KVM I added a FileDSN with Microsoft Text Driver. I created a CSV file (odbc_test_01.csv) with simple header and one row of data (IE. {'ID' : 1, 'NAME' : 'FOO'})
Created a Jupyter Notebook to make testing easier. Here is my connection string and the results:
cn = pyodbc.connect(r'Driver={ODBC Driver 17 for SQL Server};' # Driver installed above
r'FILEDSN=odbc_test_01.csv;' # my attempt at FileDSN
r'SERVER=192.168.1.12;' # KVM IP tested with ping
r'Trusted_Connection=no;' # explicit; use UID/PWD
r'UID=<username>;' # Windows user name
r'PWD=<password>', # Windows user password
autocommit=True)
OperationalError: ('HYT00', '[HYT00] [Microsoft][ODBC Driver 17 for SQL Server]Login timeout expired (0) (SQLDriverConnect)')
Tried isql from Debian command line with same string:
isql -v -k ''Driver={ODBC Driver 17 for SQL Server};FILEDSN=odbc_test_01.csv;SERVER=192.168.1.12; Trusted_Connection=no;UID=<username>;PWD=<password>'
Similar pages here at SO:
Authenticate from Linux to Windows SQL Server with pyodbc
Python pyodbc connect to Sql Server using SQL Server Authentication
An ODBC "File DSN" is not a driver for accessing data in a file. It is a way to specify a DSN (connection information for a target database) as values in a standalone file instead of in a standard configuration file on Linux (e.g., /etc/odbc.ini) or in the Windows registry.
If you need to "clone" a Windows DSN entry for use in a Linux environment then you may find my dump_dsn utility helpful. It retrieves an ODBC DSN from the Windows registry and presents it in a form that you could use to recreate the DSN on Linux.
For example, say I had a DSN named "mssql199" on Windows and when I ran dump_dsn.to_text("mssql199") on it I got
[mssql199]
Driver=ODBC Driver 17 for SQL Server
Description=with UseFMTONLY
Server=192.168.0.199
Database=myDb
Encrypt=No
TrustServerCertificate=No
ClientCertificate=
KeystoreAuthentication=
KeystorePrincipalId=
KeystoreSecret=
KeystoreLocation=
UseFMTONLY=Yes
Trusted_Connection=No
To use that same DSN on a Linux box I would have to
copy that block into /etc/odbc.ini (or equivalent, for a "System DSN") or ~/.odbc.ini (for a "User DSN") to use DSN=mssql199, or
save that block with an [ODBC] header instead of [mssql199] to a file, e.g., /home/gord/mssql199_file.dsn (for a "File DSN") and use FILEDSN=/home/gord/mssql199_file.dsn
Edit re: "Can I use FileDSN to test Python PyODBC connection to ODBC using a simple CSV file in place of Server??"
No. An ODBC DSN or FILEDSN on the Windows box will only be useful to connect from the Windows box to a data source (either locally, or on some other machine). We cannot connect from one machine (e.g., Linux) to an ODBC DSN entry on another machine
I created an SQLite database. Then I added SQLite drivers for ODBC.

How to connect to Pervasive SQL server in Ruby Application?

I am trying to connect to a Pervasive Sql Server which is running on Windows machine from my Ruby application which is on Ubuntu Machine. Can Someone please help me on same. Thanks in advance
Below is my configuration on linux machine
/etc/freetds/freetds.conf
[pserver]
host = XXX.XXX.XX.XXX
port = 1583
tds version = 8.0
Under /etc/odbcinst.ini, I have saved the driver info like below
[freetds]
Description=freetds Driver
Driver=/usr/lib/x86_64-linux-gnu/odbc/libtdsodbc.so
Setup=/usr/lib/x86_64-linux-gnu/odbc/libtdsS.so
Trace=Yes
TraceFile=/tmp/freetds.log
ForceTrave=Yes
UsageCount=10
fileusage=1
dontdlclose=1
TDS_Version = 8.0
In /etc/odbc.ini, client and database details
[pclient]
Description = Pervasive SQL Server
Driver = freetds
Trace = Yes
Servername = pserver
Port = 1583
Database = "MyDatabasename"
TDS_Version = 8.0
tsql -S pserver -U db_username -P db_password -d MyDatabasename
above cmd gives error saying
Error 20009 (severity 9):
Unable to connect: Adaptive Server is unavailable or does not exist
OS error 111, "Connection refused"
There was a problem connecting to the server
iodbctest ["DSN=pclient;UID=db_username;PWD=db_password"]
this results in
iODBC Demonstration program
This program shows an interactive SQL processor
Driver Manager: 03.52.0812.0326
(iodbctest:6672): Gtk-WARNING **: 20:40:38.693: cannot open display:
Not able to understand the above result and how to handle this. Please help
As far as I know, the only way to access Pervasive PSQL from Ruby would be through ODBC. You need to use the Pervasive Client ODBC driver. Don't use the FreeTDS driver. I've never heard of using the FreeTDS driver to connect to Pervasive PSQL. In fact, this question mentions that FreeTDS doesn't work to Pervasive PSQL. Pervasive PSQL and Microsoft SQL Server are not the same product and the client for one cannot connect to the server of the other.
The short answer would be to install the Pervasive PSQL client on the Ubuntu machine, create the ODBC Datasource name pointing to the database on the Windows machine and then use ODBC from within Ruby to access the data.
You'll want to be on at least Pervasive PSQL v11.30, preferably Actian PSQL v13 (current version as of December 2018). You'll need to download and install the client appropriate for the application. If the Ruby application is 32 bit, you need the 32 bit ODBC driver. If the application is 64 bit, you'll need the 64 bit driver. The 'bitness' of the OS is not as important. You need to use the same PSQL client version as server version. You cannot use the v13 client with a v11 server.

Filemaker ODBC Python Connection issues Mac os 10.12.02

I'm trying to set up pyodbc on a mac so I can run python scripts to talk to a filemaker database.
I am running python2.7
I have installed ODBC Manager, and the Filemaker odbc client driver. I have tested this connection and it connects fine.
However when I run the python script i get this error
pyodbc.Error: ('01000', u"[01000] [unixODBC][Driver Manager]Can't open lib 'FileMaker ODBC' : file not found (0) (SQLDriverConnect)")
c = "DRIVER={FileMaker ODBC};SERVER=localhost:2399;DSN=DB;UID=user;PWD=pass;Trusted_Connection=yes"
con = pyodbc.connect(c)
Any help would be really appreciated.
Problem fixed. My odbc.ini file was in the wrong place.
I ran the command
odbcinst -j
unixODBC 2.3.5
DRIVERS............: /usr/local/etc/odbcinst.ini
SYSTEM DATA SOURCES: /usr/local/etc/odbc.ini
FILE DATA SOURCES..: /usr/local/etc/ODBCDataSources
and moved the odbc.ini file from /Library/ODBC/odbc.ini to /usr/local/etc/odbc.ini
problem solved.
Other options:
PyFileMaker - using XML API
https://github.com/aeguana/PyFileMaker
bBox - plugin
https://bbox.beezwax.net/products/bbox
Python-fmrest - using FM Data API
https://github.com/davidhamann/python-fmrest

unixODBC Data source name not found, and no default driver specified

I'm trying to connect to a db2 server from my Laravel application. Since Laravel doesn't support db2 out of the box, I tried using this package https://github.com/cooperl22/laravel-db2, which requires me to install odbc driver.
So far, I've been able to install odbc using the following command:
apt-get install php-odbc
However, it seems like my /etc/odbc.ini and /etc/odbcinst.ini configuration are still wrong. and here's the full error message when I tried to run php artisan migrate:
[PDOException]
SQLSTATE[IM002] SQLDriverConnect: 0 [unixODBC][Driver Manager]Data source name not found, and no default
driver specified
Here's my /etc/odbc.ini:
[db2]
Description=DB2 Server
Driver=db2
Database=mydb
and here's my /etc/odbcisnt.ini:
[db2]
Description = DB2 database access
Driver = /opt/ibm/db2/V10.5/lib64/libdb2.so
FileUsage = 1
DontDLClose = 1
Ensure that your environment variables are set correctly. As shown on this link, make sure the following is set:
export DB2INSTANCE=db2inst1
isql -v sample db2inst1 ibmdb2
Exerpt from the unixodbc.org page I linked to above:
Then when it comes to connecting, you MUST have the environment
variable DB2INSTANCE set to a vaild db2 instance, so for instance to
connect with isql
Both of your config files look correct to me. (The isql part was just an example to test connectivity.)

Impala ODBC connection using SIMBA

I referred Impala ODBC connection provided by Simba/CDH and installed it. I'm using CDH5.3 and Impala 2.1.0.
in odbc.ini, i tried port 21050,21000 but not able to connect to Impala. Later I used port 10000 and able to connect. Not sure if it this port really runs query in Impala as when I run 'select count(*) from emp' at isql -v impala_simba, it takes lot time as compare to running same query in from Impala-shell.
I doubt if the configuration really uses Impala or Hive ?
I also tried with the CDH provided Impala ODBC connection but that also has same issue.
Can you please advise what's correct Impala port i should mention in .odbc.ini so that it runs query in Impala ?
here's configurations.
[ODBC Data Sources]
impala_simba=Simba Impala ODBC Driver
[impala_simba]
# Description: DSN Description.
# This key is not necessary and is only to give a description of the data source.
Description=Simba Impala ODBC Driver (64-bit) DSN
# Driver: The location where the ODBC driver is installed to.
Driver=/opt/simba/impalaodbc/lib/64/libsimbaimpalaodbc64.so
# The DriverUnicodeEncoding setting is only used for SimbaDM
# When set to 1, SimbaDM runs in UTF-16 mode.
# When set to 2, SimbaDM runs in UTF-8 mode.
DriverUnicodeEncoding=1
# Values for HOST, PORT, KrbFQDN, and KrbServiceName should be set here.
# They can also be specified on the connection string.
HOST=10.74.163.109
PORT=10000
Database=default
# The authentication mechanism.
# 0 - no authentication.
# 1 - Kerberos authentication
# 2 - Username authentication.
# 3 - Username/password authentication.
# 4 - Username/password authentication with SSL.
AuthMech=2
# Kerberos related settings.
#KrbFQDN=
#KrbRealm=
#KrbServiceName=
# Username/password authentication with SSL settings.
UID=abhi
#PWD
CAIssuedCertNamesMismatch=1
TrustedCerts=/opt/simba/impalaodbc/lib/64/cacerts.pem
# Specify the proxy user ID to use.
#DelegationUID=
# General settings
TSaslTransportBufSize=1000
RowsFetchedPerBlock=1000
SocketTimeout=0
StringColumnLength=32767
UseNativeQuery=0

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