I use I-net designer 16 with a Oracle 12.2 Database Source. In report Designer i have no problem to view the report results ('ve put ojdbc8.jar into the driver path of Clear Reports) but, when I try to launch that report on my web-application (deployed on Apache Tomcat) that give me this error:
[Pool Manager] Cannot load specified driver: oracle.jdbc.driver.OracleDriver
; i've also copied the .jar file into the driver path on Clear-reports server.
Anyone have solved this problem?
Thanks
Related
I am trying to create Flink JBDC sink to an oracle database. When run locally (from a junit test and minicluster) it works but when deployed in k8s it throws an exception saying it cannot find a suitable Driver. The Classpath is:
Classpath: /flink/lib/flink-cep-scala_2.12-1.13.5-stream1.jar:/flink/lib/flink-connector-jdbc_2.12-1.13.5.jar:/flink/lib/flink-csv-1.13.5-stream1.jar:/flink/lib/flink-json-1.13.5-stream1.jar:/flink/lib/flink-queryable-state-runtime_2.12-1.13.5-stream1.jar:/flink/lib/flink-shaded-netty-tcnative-dynamic-2.0.30.Final-13.0-stream1.jar:/flink/lib/flink-shaded-zookeeper-3.4.14.jar:/flink/lib/flink-table-blink_2.12-1.13.5-stream1.jar:/flink/lib/flink-table_2.12-1.13.5-stream1.jar:/flink/lib/log4j-1.2-api-2.16.0.jar:/flink/lib/log4j-api-2.16.0.jar:/flink/lib/log4j-core-2.16.0.jar:/flink/lib/log4j-slf4j-impl-2.16.0.jar:/flink/lib/ojdbc8-21.5.0.0.jar:/flink/lib/vvp-flink-ha-kubernetes-flink113-1.4-20211013.091138-2.jar:/flink/lib/flink-dist_2.12-1.13.5-stream1.jar:::
I tried multiple things:
Included the driver in the flink/lib directory and the flink-connector-jdbc connector was packaged within the the jar and .withDriverName("oracle.jdbc.OracleDriver") /.withDriverName("oracle.jdbc.driver.OracleDriver")
Included both the driver and the connector into the flink/lib directory and .withDriverName("oracle.jdbc.OracleDriver") / .withDriverName("oracle.jdbc.driver.OracleDriver")
I also tried to change the classloading configuration to classloader.parent-first-patterns.additional: oracle.jdbc.
but nothing seems to be working for me. The exception is:
failure cause: java.io.IOException: unable to open JDBC writer
at org.apache.flink.connector.jdbc.internal.AbstractJdbcOutputFormat.open(AbstractJdbcOutputFormat.java:56)
at org.apache.flink.connector.jdbc.internal.JdbcBatchingOutputFormat.open(JdbcBatchingOutputFormat.java:115)
at org.apache.flink.connector.jdbc.internal.GenericJdbcSinkFunction.open(GenericJdbcSinkFunction.java:49)
at org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:34)
at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:102)
at org.apache.flink.streaming.api.operators.StreamSink.open(StreamSink.java:46)
at org.apache.flink.streaming.runtime.tasks.OperatorChain.initializeStateAndOpenOperators(OperatorChain.java:442)
at org.apache.flink.streaming.runtime.tasks.StreamTask.restoreGates(StreamTask.java:585)
at org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$SynchronizedStreamTaskActionExecutor.call(StreamTaskActionExecutor.java:100)
at org.apache.flink.streaming.runtime.tasks.StreamTask.executeRestore(StreamTask.java:565)
at org.apache.flink.streaming.runtime.tasks.StreamTask.runWithCleanUpOnFail(StreamTask.java:650)
at org.apache.flink.streaming.runtime.tasks.StreamTask.restore(StreamTask.java:540)
at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:759)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:566)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.sql.SQLException: No suitable driver found for "jdbc:oracle:thin:#//SOMECONNECTION"
at org.apache.flink.connector.jdbc.internal.connection.SimpleJdbcConnectionProvider.getOrEstablishConnection(SimpleJdbcConnectionProvider.java:126)
at org.apache.flink.connector.jdbc.internal.AbstractJdbcOutputFormat.open(AbstractJdbcOutputFormat.java:54)
... 14 more
What am I missing?
There is no support in Flink 1.13 for Oracle via JDBC, that was only added in Flink 1.15
I opened Oracle SQL Developer after using it for a while a few days ago and then I run into this mysterious and infuriating issue where I cannot connect to my locally installed database. First I got a report of the JDBC driver being outdated when testing the connection, so I replaced it with the updated version and then tried again, but then got a different error saying the OCI library won't load. The path to my Oracle Databse Express Edition 18 installation that works as ORACLE_HOME is C:\app\nicho\product\18.0.0\dbhomeXE. I don't understand why the OCI library won't load, as the oci.dll and associated oci files are all in the directory the error message specifies: C:\app\nicho\product\18.0.0\dbhomeXE\bin. I tried using the Instant Client option in the Tools->Preferences->Database->Advanced section by downloading the Oracle Instant Client and changing the path, but I got the same OCI library load failed message. This problem is very significant because I need to use this software for my college project and cannot do my work. I don't understand why this error is happening.
Testing the Oracle Home located at C:\app\nicho\product\18.0.0\dbhomeXE
Testing client directory ... OK
Testing loading Oracle JDBC driver ... OK
Testing checking Oracle JDBC driver version ... OK
Driver version: 21.1.0.0.0
Testing testing native OCI library load ... Failed:
Error loading the native OCI library
The native OCI driver could not be loaded. The system propertyjava.library.path contains the entries from the environment variable PATH. Check it to verify that
the expected native library directory C:\app\nicho\product\18.0.0\dbhomeXE\bin is present and precedes any other client installations.
java.library.path = C:\Users\nicho\OneDrive\Documents\IS 410\sqldeveloper\sqldeveloper\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\NVIDIA Corporation\NVIDIA NvDLISR;C:\app\nicho\product\18.0.0\dbhomeXE\bin;C:\Users\nicho\AppData\Local\Microsoft\WindowsApps;;.
As you can see, the expected native library directory is in the path, but the OCI driver will still not load. My database and installation were working fine before today. Please help. :(
I am trying to migrate from MySQL to PostgreSQL and I have a Java-related problem that I am not able to fix. Full disclosure: I know little or nothing about Java, but the migration uses a Java-based script, so for me it becomes a configuration problem.
Short version of the problem:
The migration tool throws this exception:
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
mysql-connector-java-5.0.8-bin.jar is already in the "JAVA_HOME\jre\lib\ext" directory, and I don't know how to solve this depencency problem.
Long version of the problem:
I was trying to migrate from MySQL to PostgreSQL. I checked the official postgresql documentation and I chose the free tool from entreprisedb (that can be downloaded here) to start the migration.
From the installation readme, they tell you that the mysql connector is not installed by default, but they also tell you the steps to solve this problem:
To enable MySQL connectivity, download MySQL's freely available JDBC driver from:
http://www.enterprisedb.com/downloads/third-party-jdbc-drivers
Place the mysql-connector-java-5.0.8-bin.jar file in the "JAVA_HOME\jre\lib\ext" directory (in my case: "C:\Program Files\Java\jre1.8.0_60\lib\ext\mysql-connector-java-5.0.8-bin.jar").
After configuring the tool properly and executing the .bat, this is the error I get:
Connecting with source MySQL database server...
MTK-11009: Error Connecting Database "MySQL Server"
DB-null: java.sql.SQLException: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
Stack Trace:
com.edb.MTKException: MTK-11009: Error Connecting Database "MySQL Server"
at com.edb.dbhandler.mysql.MySQLConnection.<init>(MySQLConnection.java:48)
at com.edb.common.MTKFactory.createMTKConnection(MTKFactory.java:250)
at com.edb.MigrationToolkit.createNewSourceConnection(MigrationToolkit.java:5982)
at com.edb.MigrationToolkit.initToolkit(MigrationToolkit.java:3346)
at com.edb.MigrationToolkit.main(MigrationToolkit.java:1700)
Caused by: java.sql.SQLException: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at com.edb.Utility.processException(Utility.java:327)
at com.edb.dbhandler.mysql.MySQLConnection.<init>(MySQLConnection.java:47)
... 4 more
...which, to my understanding, probably means that mysql-connector-java-5.0.8-bin.jar is not found.
All the links I've found online regarding the error are specific for Eclipse or other IDEs, so I have not yet been able to solve this dependency problem.
SOLUTION
With the help of a friend that masters Java, this is the solution he achieved:
To start looking for the problem, we opened the runMTK.bat. The execution line reads:
cscript //nologo "..\etc\sysconfig\runJavaApplication.vbs" "..\etc\sysconfig\edbmtk-49.config" "-Dprop=..\etc\toolkit.properties -classpath -jar edb-migrationtoolkit.jar %*"
So then we opened this runJavaApplication.vbs, and in order to know the JAVA_EXECUTABLE_PATH that the program was using, we add this line to the script:
Wscript.Echo "JAVA_EXECUTABLE_PATH = " & JAVA_EXECUTABLE_PATH
With that info, we discover that the script is using the Java folder under C:\Program Files (x86), instead of the one under C:\Program Files (where I dropped the mysql jar). So we copy the mysql-connector-java-5.0.8-bin.jar in the \ext folder of the x86, and now the script works.
Word of advice: the script is throwing errors in half of the exported tables, so all the hassle may not be worth it. BUT if anyone is interested in making this migration script work from A to Z (which has been quite a challenge), here are the details:
HOW TO
Free tool (from entreprisedb):
http://www.enterprisedb.com/downloads/postgres-postgresql-downloads
Extract the files from the zip and fun the installer (ppasmeta-9.5.0.5-windows-x64.exe) as administrator.
To enable MySQL connectivity, download MySQL's freely available JDBC driver from:
http://www.enterprisedb.com/downloads/third-party-jdbc-drivers
Place the mysql-connector-java-5.0.8-bin.jar file in the "JAVA_HOME\jre\lib\ext" directory (in my case: "C:\Program Files\Java\jre1.8.0_60\lib\ext\mysql-connector-java-5.0.8-bin.jar").
The Migration Toolkit documentation can be found:
here (online doc): https://www.enterprisedb.com/docs/en/9.4/migrate/toc.html
or here (pdf doc): http://get.enterprisedb.com/docs/Postgres_Plus_Migration_Guide_v9.5.pdf
First: modify C:\Program Files\PostgresPlus\edbmtk\etc\toolkit.properties (Info here):
SRC_DB_URL=jdbc:mysql://SOURCE-HOST-NAME/SOURCE-DB-NAME
SRC_DB_USER=********
SRC_DB_PASSWORD=********
TARGET_DB_URL=jdbc:edb://localhost:5444/DESTINATION-DB-NAME
TARGET_DB_USER=enterprisedb
TARGET_DB_PASSWORD=********
Then: execute C:\Program Files\PostgresPlus\edbmtk\bin\runMTK.bat (Info here).
runMTK.bat -sourcedbtype mysql -targetdbtype enterprisedb -allTables YOUR_DB_SCHEMA
// ...or with a limited subset of tables:
runMTK.bat -sourcedbtype mysql -targetdbtype enterprisedb -tables TABLE1,TABLE2,TABLE3 YOUR_DB_SCHEMA
In order to get this subset of tables from MySQL:
SELECT
GROUP_CONCAT(TABLE_NAME)
FROM
information_schema.tables
WHERE
TABLE_SCHEMA = 'your_db_name'
I try to get iReport 2.0.4 connected to my database resulting in a ClassNotFound exception.
So I downloaded the MS JDBC drivers 4.1 and 4.0 for SQL server. (http://www.microsoft.com/en-us/download/details.aspx?displaylang=en&id=11774)
I added the jdb jar file to the iReport Classpath:
I restarted iReport and tried to connect to the db again:
File > Report Wizard > Database JDBC connection > Next >
JDBC Driver (com.microsoft.jdbc.sqlserver.SQLServerDriver)
JDBC URL: jdbc:microsoft:sqlserver://(myIP):1433;DatabaseName=MYDATABASE
I am getting the same exception.
Could anyone please point me what I am doing wrong?
The problem is that the classname of the JDBC driver is incorrect. The correct classname is com.microsoft.sqlserver.jdbc.SQLServerDriver (notice the order of elements: sqlserver before jdbc).
I believe that one of the first Microsoft SQL Server JDBC driver did have the classname you tried, but it has since been replaced.
First make sure you are added sqljdbc4.jar in your class path .
--> Tools->Options->Classpath tab :
1 - In JDBC Driver : com.microsoft.sqlserver.jdbc.SQLServerDriver
2 - In JDBC URL : jdbc:sqlserver://localhost:1433 without database name only port
3 - Database username and password in credentials section
I have a wowza server (built with Java) and need it to save logs to a SQL Server 2005 Database. I downloaded the sqljdbc4.jar jar file from Microsoft and placed it in C:\Program Files\Java\jre6\lib\ext. I also added the classpath to a windows variable, but am getting this error:
java.sql.SQLException: No suitable driver found for jdbc:sqlserver
These are the wowza configuration settings for SQL server:
log4j.appender.SQ=org.apache.log4j.jdbc.JDBCAppender
log4j.appender.SQ.Driver=com.microsoft.sqlserver.jdbc.SQLServerDriver
log4j.appender.SQ.URL=jdbc:sqlserver:\\Myserver;databaseName=WowzaLog
log4j.appender.SQ.user=sa
log4j.appender.SQ.password=123
log4j.appender.SQ.layout=com.wowza.wms.logging.ECLFPatternLayout
log4j.appender.SQ.layout.OutputHeader=false
log4j.appender.SQ.sql=my insert SQL
It's not a wowza problem. It's something related to JAVA but I'm not a Java expert.
Thanks
Does Wowza have any lib folder? This would typically have lots of jar files in it that wowza would need to use.
Normally you put the JDBC driver jar file in there not in the Java runtime ext environment.
Also the Database path seems wrong. It needs to have forward slashes not backslashes. It needs to be like this:
jdbc:sqlserver://server:port;DatabaseName=dbname