没有为jdbc:oracle:oci找到合适的驱动程序

Question

当我创建kafka jdbc源连接器（debezium连接器用于带有confluent-5.4.0的oracle）时，出现错误“没有找到适合jdbc： oracle： oci…”。

[2020-03-23 11:49:44,521] ERROR WorkerSourceTask{id=debezium-souce-inventory-0} Task threw an uncaught and unrecoverable exception (org.apache.kafka.connect.runtime.WorkerTask:179)
org.apache.kafka.connect.errors.ConnectException: An exception ocurred in the change event producer. This connector will be stopped.
    at io.debezium.connector.base.ChangeEventQueue.throwProducerFailureIfPresent(ChangeEventQueue.java:170)
    at io.debezium.connector.base.ChangeEventQueue.poll(ChangeEventQueue.java:151)
    at io.debezium.connector.oracle.OracleConnectorTask.poll(OracleConnectorTask.java:110)
    at org.apache.kafka.connect.runtime.WorkerSourceTask.poll(WorkerSourceTask.java:265)
    at org.apache.kafka.connect.runtime.WorkerSourceTask.execute(WorkerSourceTask.java:232)
    at org.apache.kafka.connect.runtime.WorkerTask.doRun(WorkerTask.java:177)
    at org.apache.kafka.connect.runtime.WorkerTask.run(WorkerTask.java:227)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: java.sql.SQLException: No suitable driver found for jdbc:oracle:oci:@test:1521/testdb
    at io.debezium.relational.RelationalSnapshotChangeEventSource.execute(RelationalSnapshotChangeEventSource.java:179)
    at io.debezium.pipeline.ChangeEventSourceCoordinator.lambda$start$0(ChangeEventSourceCoordinator.java:83)
    ... 5 more
Caused by: java.sql.SQLException: No suitable driver found for jdbc:oracle:oci:@test:1521/testdb
    at java.sql.DriverManager.getConnection(DriverManager.java:689)
    at java.sql.DriverManager.getConnection(DriverManager.java:247)
    at io.debezium.connector.oracle.OracleConnectionFactory.connect(OracleConnectionFactory.java:25)
    at io.debezium.jdbc.JdbcConnection.connection(JdbcConnection.java:756)
    at io.debezium.jdbc.JdbcConnection.connection(JdbcConnection.java:751)
    at io.debezium.relational.RelationalSnapshotChangeEventSource.execute(RelationalSnapshotChangeEventSource.java:119)
    ... 6 more
[2020-03-23 11:49:44,521] ERROR WorkerSourceTask{id=debezium-souce-inventory-0} Task is being killed and will not recover until manually restarted (org.apache.kafka.connect.runtime.WorkerTask:180)

我的oracle版本是企业版发布11.2.0.4.0-64位生产，我尝试了不同的驱动程序jar，但得到了相同的异常。

我的jdk版本是：

[root@vtsz-big-dwh02 /]# echo $JAVA_HOME
/usr/java/jdk1.8.0_191

我已经将 debezium-连接器-预言机添加到文件夹融合-5.4.0/share/java。

正如Debezium文档所说，我安装即时客户端并复制文件_ojbc8.jar和xtream。jar从Instant Client进入Kafka的libs

Directiry（confluent-5.4.0/share/java/kafka，confluent-5.4.0/share/java/kafka-connect-jdbc，/opt/confluent-5.4.0/lib，/usr/share/java'）。

[root@vtsz-big-dwh02 java]# echo $LD_LIBRARY_PATH
/home/app/instantclient_11_2/:

我的源连接器配置为：

{
  "name": "debezium-souce-idea-inventory",
  "config": {
      "connector.class": "io.debezium.connector.oracle.OracleConnector",
      "tasks.max": "1",
      "database.server.name":"testdb",
      "database.out.server.name":"testdb",
      "database.hostname": "10.0.10.169",
      "database.port": "1521",
      "database.user": "mytest",
      "database.password": "mytest",
      "database.dbname" : "testdb",
      "table.whitelist": "ideas.WMS_INVENTORY",
      "database.history.kafka.bootstrap.servers":"localhost:9092",
      "database.history.kafka.topic":"schema-changes.inventory"
      }
 }

Answer 1

您需要将连接器（在本例中为Debezium）所依赖的JAR文件放在与连接器插件相同的文件夹（或子文件夹）中。

所以与其把它们放进去

confluent-5.4.0/share/java/kafka
/opt/confluent-5.4.0/lib
/usr/share/java
confluent-5.4.0/share/java/kafka-connect-jdbc

把它们放进去

confluent-5.4.0/share/java/debezium-connector-oracle

(或者实际的Debezium JAR插件所在的位置)