问Kafka连接JDBC源OutOfMemoryError

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{
    "name": "jobName",
    "config": {
        "connector.class": "io.confluent.connect.jdbc.JdbcSourceConnector",
        "mode": "timestamp",
        "timestamp.column.name": "dateColumn",
        "topic.prefix": "connect-test.",
        "connection.password": "pw",
        "tasks.max": "1",
        "connection.user": "un",
        "poll.interval.ms": "300000",
        "name": "jobName",
        "connection.url": "jdbc:sqlserver://serverName;Database=dbName;user=un;password=pw",
        "table.whitelist": "tableName"
    }
}

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "KafkaBasedLog Work Thread - connect-configs"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "kafka-coordinator-heartbeat-thread | connect-cluster"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "kafka-producer-network-thread | producer-1"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "KafkaBasedLog Work Thread - connect-offsets"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "kafka-producer-network-thread | producer-3"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "pool-4-thread-1"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "kafka-producer-network-thread | producer-2"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "KafkaBasedLog Work Thread - connect-status"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "DistributedHerder"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "pool-1-thread-5"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "org.eclipse.jetty.server.session.HashSessionManager@2c243a24Timer"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "qtp1434297727-21"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "qtp1434297727-26"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "qtp1434297727-27"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "kafka-producer-network-thread | producer-14"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "kafka-producer-network-thread | producer-15"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "pool-1-thread-4"