如何解决debezium mongo db source connector中的java.lang.nullpointerexception?

rmbxnbpk  于 2021-06-04  发布在  Kafka
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我正在使用debezium mongo db源连接器。对于create/update来说效果很好,但是对于delete,我希望在targetdb中过滤完整的文档。为此,我将连接器配置为处理模式

"transforms.unwrap.delete.handling.mode" : "rewrite",

但它给出了错误(附截图)

"Caused by: java.lang.NullPointerException"

虽然我做的时候效果很好

"transforms.unwrap.delete.handling.mode" : "drop",

但在这种情况下,我得到null值。
我尝试了下面的transforms.unwrap.type,但得到了相同的结果
“transforms.unwrap.type”:“io.debezium.transforms.unwrapfromenvelope”,
“transforms.unwrap.type”:“io.debezium.connector.mongodb.transforms.unwrapfrommongodbenevelope”,
“transforms.unwrap.type”:“io.debezium.transforms.extractnewrecordstate”,
如果是delete而不是null,有什么方法可以得到完整的文档吗
请查看随附的错误截图和连接器的完整配置

{
    "name": "inventory-mongo-connector",
    "config": {
         "connector.class" : "io.debezium.connector.mongodb.MongoDbConnector",
        "tasks.max" : "1",
        "mongodb.hosts" : "XXXXX",
        "mongodb.name" : "YYYY",
        "mongodb.user" : "ZZZZ",
        "mongodb.password" : "TTTTT",
        "database.whitelist" : "maindb",
        "collection.whitelist":"maindb.collection1,maindb.collection2",
        "database.history.kafka.bootstrap.servers" : "kafka:9092",
        "transforms" : "unwrap",  
        "transforms.unwrap.type" : "io.debezium.transforms.UnwrapFromEnvelope",
        "transforms.unwrap.drop.tombstones" : "false",
        "transforms.unwrap.delete.handling.mode" : "rewrite",
        "transforms.unwrap.operation.header" : "true"
    }
}

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