Awesome, so that took me a step further. When running i'm receiving an
error however. FYI, my docker-compose file is based on the Debezium mysql
tutorial which can be found here
https://debezium.io/documentation/reference/1.2/tutorial.html
Part of the stack trace:
flink-jobmanager_1 | Caused by: java.io.IOException: Corrupt Debezium
JSON message
'{"schema":{"type":"struct","fields":[{"type":"struct","fields":[{"type":"int32","optional":false,"field":"id"},{"type":"int32","optional":false,"field":"customer_id"},{"type":"string","optional":false,"field":"street"},{"type":"string","optional":false,"field":"city"},{"type":"string","optional":false,"field":"state"},{"type":"string","optional":false,"field":"zip"},{"type":"string","optional":false,"name":"io.debezium.data.Enum","version":1,"parameters":{"allowed":"SHIPPING,BILLING,LIVING"},"field":"type"}],"optional":true,"name":"dbserver1.inventory.addresses.Value","field":"before"},{"type":"struct","fields":[{"type":"int32","optional":false,"field":"id"},{"type":"int32","optional":false,"field":"customer_id"},{"type":"string","optional":false,"field":"street"},{"type":"string","optional":false,"field":"city"},{"type":"string","optional":false,"field":"state"},{"type":"string","optional":false,"field":"zip"},{"type":"string","optional":false,"name":"io.debezium.data.Enum","version":1,"parameters":{"allowed":"SHIPPING,BILLING,LIVING"},"field":"type"}],"optional":true,"name":"dbserver1.inventory.addresses.Value","field":"after"},{"type":"struct","fields":[{"type":"string","optional":false,"field":"version"},{"type":"string","optional":false,"field":"connector"},{"type":"string","optional":false,"field":"name"},{"type":"int64","optional":false,"field":"ts_ms"},{"type":"string","optional":true,"name":"io.debezium.data.Enum","version":1,"parameters":{"allowed":"true,last,false"},"default":"false","field":"snapshot"},{"type":"string","optional":false,"field":"db"},{"type":"string","optional":true,"field":"table"},{"type":"int64","optional":false,"field":"server_id"},{"type":"string","optional":true,"field":"gtid"},{"type":"string","optional":false,"field":"file"},{"type":"int64","optional":false,"field":"pos"},{"type":"int32","optional":false,"field":"row"},{"type":"int64","optional":true,"field":"thread"},{"type":"string","optional":true,"field":"query"}],"optional":false,"name":"io.debezium.connector.mysql.Source","field":"source"},{"type":"string","optional":false,"field":"op"},{"type":"int64","optional":true,"field":"ts_ms"},{"type":"struct","fields":[{"type":"string","optional":false,"field":"id"},{"type":"int64","optional":false,"field":"total_order"},{"type":"int64","optional":false,"field":"data_collection_order"}],"optional":true,"field":"transaction"}],"optional":false,"name":"dbserver1.inventory.addresses.Envelope"},"payload":{"before":null,"after":{"id":18,"customer_id":1004,"street":"111
cool street","city":"Big
City","state":"California","zip":"90000","type":"BILLING"},"source":{"version":"1.2.1.Final","connector":"mysql","name":"dbserver1","ts_ms":1598651432000,"snapshot":"false","db":"inventory","table":"addresses","server_id":223344,"gtid":null,"file":"mysql-bin.000010","pos":369,"row":0,"thread":5,"query":null},"op":"c","ts_ms":1598651432407,"transaction":null}}'.
flink-jobmanager_1 | at
org.apache.flink.formats.json.debezium.DebeziumJsonDeserializationSchema.deserialize(DebeziumJsonDeserializationSchema.java:136)
~[flink-json-1.11.1.jar:1.11.1]
flink-jobmanager_1 | at
org.apache.flink.streaming.connectors.kafka.internals.KafkaDeserializationSchemaWrapper.deserialize(KafkaDeserializationSchemaWrapper.java:56)
~[?:?]
flink-jobmanager_1 | at
org.apache.flink.streaming.connectors.kafka.internal.KafkaFetcher.partitionConsumerRecordsHandler(KafkaFetcher.java:181)
~[?:?]
flink-jobmanager_1 | at
org.apache.flink.streaming.connectors.kafka.internal.KafkaFetcher.runFetchLoop(KafkaFetcher.java:141)
~[?:?]
flink-jobmanager_1 | at
org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase.run(FlinkKafkaConsumerBase.java:755)
~[?:?]
flink-jobmanager_1 | at
org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:100)
~[flink-dist_2.12-1.11.1.jar:1.11.1]
flink-jobmanager_1 | at
org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:63)
~[flink-dist_2.12-1.11.1.jar:1.11.1]
flink-jobmanager_1 | at
org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:201)
~[flink-dist_2.12-1.11.1.jar:1.11.1]
flink-jobmanager_1 | Caused by: java.lang.NullPointerException
flink-jobmanager_1 | at
org.apache.flink.formats.json.debezium.DebeziumJsonDeserializationSchema.deserialize(DebeziumJsonDeserializationSchema.java:115)
~[flink-json-1.11.1.jar:1.11.1]
flink-jobmanager_1 | at
org.apache.flink.streaming.connectors.kafka.internals.KafkaDeserializationSchemaWrapper.deserialize(KafkaDeserializationSchemaWrapper.java:56)
~[?:?]
flink-jobmanager_1 | at
org.apache.flink.streaming.connectors.kafka.internal.KafkaFetcher.partitionConsumerRecordsHandler(KafkaFetcher.java:181)
~[?:?]
flink-jobmanager_1 | at
org.apache.flink.streaming.connectors.kafka.internal.KafkaFetcher.runFetchLoop(KafkaFetcher.java:141)
~[?:?]
flink-jobmanager_1 | at
org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase.run(FlinkKafkaConsumerBase.java:755)
~[?:?]
flink-jobmanager_1 | at
org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:100)
~[flink-dist_2.12-1.11.1.jar:1.11.1]
flink-jobmanager_1 | at
org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:63)
~[flink-dist_2.12-1.11.1.jar:1.11.1]
flink-jobmanager_1 | at
org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:201)
~[flink-dist_2.12-1.11.1.jar:1.11.1]
On Thu, Aug 27, 2020 at 8:12 PM Jark Wu <imj...@gmail.com> wrote:
> Hi,
>
> This is a known issue in 1.11.0, and has been fixed in 1.11.1.
>
>
> Best,
> Jark
>
> On Fri, 28 Aug 2020 at 06:52, Rex Fenley <r...@remind101.com> wrote:
>
>> Hi again!
>>
>> I'm tested out locally in docker on Flink 1.11 first to get my bearings
>> before downgrading to 1.10 and figuring out how to replace the Debezium
>> connector. However, I'm getting the following error
>> ```
>> Provided trait [BEFORE_AND_AFTER] can't satisfy required trait
>> [ONLY_UPDATE_AFTER]. This is a bug in planner, please file an issue.
>> ```
>>
>> Any suggestions for me to fix this?
>>
>> code:
>>
>> val bsEnv = StreamExecutionEnvironment.getExecutionEnvironment
>> val blinkStreamSettings =
>> EnvironmentSettings
>> .newInstance()
>> .useBlinkPlanner()
>> .inStreamingMode()
>> .build()
>> val tableEnv = StreamTableEnvironment.create(bsEnv, blinkStreamSettings)
>>
>> // Table from Debezium mysql example docker:
>> //
>> +-------------+-------------------------------------+------+-----+---------+----------------+
>> // | Field | Type | Null | Key | Default | Extra |
>> //
>> +-------------+-------------------------------------+------+-----+---------+----------------+
>> // | id | int(11) | NO | PRI | NULL | auto_increment |
>> // | customer_id | int(11) | NO | MUL | NULL | |
>> // | street | varchar(255) | NO | | NULL | |
>> // | city | varchar(255) | NO | | NULL | |
>> // | state | varchar(255) | NO | | NULL | |
>> // | zip | varchar(255) | NO | | NULL | |
>> // | type | enum('SHIPPING','BILLING','LIVING') | NO | | NULL | |
>> //
>> +-------------+-------------------------------------+------+-----+---------+----------------+
>>
>> tableEnv.executeSql("""
>> CREATE TABLE topic_addresses (
>> -- schema is totally the same to the MySQL "addresses" table
>> id INT,
>> customer_id INT,
>> street STRING,
>> city STRING,
>> state STRING,
>> zip STRING,
>> type STRING,
>> PRIMARY KEY (id) NOT ENFORCED
>> ) WITH (
>> 'connector' = 'kafka',
>> 'topic' = 'dbserver1.inventory.addresses',
>> 'properties.bootstrap.servers' = 'flink-jdbc-test_kafka_1:9092',
>> 'properties.group.id' = 'testGroup',
>> 'format' = 'debezium-json' -- using debezium-json as the format
>> )
>> """)
>>
>> val table = tableEnv.from("topic_addresses").select($"*")
>>
>> // Defining a PK automatically puts it in Upsert mode, which we want.
>> // TODO: type should be a keyword, is that acceptable by the DDL?
>> tableEnv.executeSql("""
>> CREATE TABLE ESAddresses (
>> id INT,
>> customer_id INT,
>> street STRING,
>> city STRING,
>> state STRING,
>> zip STRING,
>> type STRING,
>> PRIMARY KEY (id) NOT ENFORCED
>> ) WITH (
>> 'connector' = 'elasticsearch-7',
>> 'hosts' = 'http://flink-jdbc-test_graph-elasticsearch_1:9200',
>> 'index' = 'flinkaddresses',
>> 'format' = 'json'
>> )
>> """)
>>
>> table.executeInsert("ESAddresses").print()
>>
>> Thanks!
>>
>> On Thu, Aug 27, 2020 at 11:53 AM Rex Fenley <r...@remind101.com> wrote:
>>
>>> Thanks!
>>>
>>> On Thu, Aug 27, 2020 at 5:33 AM Jark Wu <imj...@gmail.com> wrote:
>>>
>>>> Hi,
>>>>
>>>> Regarding the performance difference, the proposed way will have one
>>>> more stateful operator (deduplication) than the native 1.11 cdc support.
>>>> The overhead of the deduplication operator is just similar to a simple
>>>> group by aggregate (max on each non-key column).
>>>>
>>>> Best,
>>>> Jark
>>>>
>>>> On Tue, 25 Aug 2020 at 02:21, Rex Fenley <r...@remind101.com> wrote:
>>>>
>>>>> Thank you so much for the help!
>>>>>
>>>>> On Mon, Aug 24, 2020 at 4:08 AM Marta Paes Moreira <
>>>>> ma...@ververica.com> wrote:
>>>>>
>>>>>> Yes — you'll get the full row in the payload; and you can also access
>>>>>> the change operation, which might be useful in your case.
>>>>>>
>>>>>> About performance, I'm summoning Kurt and @Jark Wu <j...@apache.org> to
>>>>>> the thread, who will be able to give you a more complete answer and
>>>>>> likely
>>>>>> also some optimization tips for your specific use case.
>>>>>>
>>>>>> Marta
>>>>>>
>>>>>> On Fri, Aug 21, 2020 at 8:55 PM Rex Fenley <r...@remind101.com> wrote:
>>>>>>
>>>>>>> Yup! This definitely helps and makes sense.
>>>>>>>
>>>>>>> The 'after' payload comes with all data from the row right? So
>>>>>>> essentially inserts and updates I can insert/replace data by pk and null
>>>>>>> values I just delete by pk, and then I can build out the rest of my
>>>>>>> joins
>>>>>>> like normal.
>>>>>>>
>>>>>>> Are there any performance implications of doing it this way that is
>>>>>>> different from the out-of-the-box 1.11 solution?
>>>>>>>
>>>>>>> On Fri, Aug 21, 2020 at 2:28 AM Marta Paes Moreira <
>>>>>>> ma...@ververica.com> wrote:
>>>>>>>
>>>>>>>> Hi, Rex.
>>>>>>>>
>>>>>>>> Part of what enabled CDC support in Flink 1.11 was the refactoring
>>>>>>>> of the table source interfaces (FLIP-95 [1]), and the new
>>>>>>>> ScanTableSource
>>>>>>>> [2], which allows to emit bounded/unbounded streams with insert,
>>>>>>>> update and
>>>>>>>> delete rows.
>>>>>>>>
>>>>>>>> In theory, you could consume data generated with Debezium as
>>>>>>>> regular JSON-encoded events before Flink 1.11 — there just wasn't a
>>>>>>>> convenient way to really treat it as "changelog". As a workaround,
>>>>>>>> what you
>>>>>>>> can do in Flink 1.10 is process these messages as JSON and extract the
>>>>>>>> "after" field from the payload, and then apply de-duplication [3] to
>>>>>>>> keep
>>>>>>>> only the last row.
>>>>>>>>
>>>>>>>> The DDL for your source table would look something like:
>>>>>>>>
>>>>>>>> CREATE TABLE tablename ( *... * after ROW(`field1` DATATYPE,
>>>>>>>> `field2` DATATYPE, ...) ) WITH ( 'connector' = 'kafka', 'format' =
>>>>>>>> 'json', ... );
>>>>>>>> Hope this helps!
>>>>>>>>
>>>>>>>> Marta
>>>>>>>>
>>>>>>>> [1]
>>>>>>>> https://cwiki.apache.org/confluence/display/FLINK/FLIP-95%3A+New+TableSource+and+TableSink+interfaces
>>>>>>>> [2]
>>>>>>>> https://ci.apache.org/projects/flink/flink-docs-release-1.11/api/java/org/apache/flink/table/connector/source/ScanTableSource.html
>>>>>>>> [3]
>>>>>>>> https://ci.apache.org/projects/flink/flink-docs-release-1.10/dev/table/sql/queries.html#deduplication
>>>>>>>>
>>>>>>>>
>>>>>>>> On Fri, Aug 21, 2020 at 10:28 AM Chesnay Schepler <
>>>>>>>> ches...@apache.org> wrote:
>>>>>>>>
>>>>>>>>> @Jark Would it be possible to use the 1.11 debezium support in
>>>>>>>>> 1.10?
>>>>>>>>>
>>>>>>>>> On 20/08/2020 19:59, Rex Fenley wrote:
>>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>>
>>>>>>>>> I'm trying to set up Flink with Debezium CDC Connector on AWS EMR,
>>>>>>>>> however, EMR only supports Flink 1.10.0, whereas Debezium Connector
>>>>>>>>> arrived
>>>>>>>>> in Flink 1.11.0, from looking at the documentation.
>>>>>>>>>
>>>>>>>>> https://docs.aws.amazon.com/emr/latest/ReleaseGuide/emr-flink.html
>>>>>>>>>
>>>>>>>>> https://ci.apache.org/projects/flink/flink-docs-release-1.11/dev/table/connectors/formats/debezium.html
>>>>>>>>>
>>>>>>>>> I'm wondering what alternative solutions are available for
>>>>>>>>> connecting Debezium to Flink? Is there an open source Debezium
>>>>>>>>> connector
>>>>>>>>> that works with Flink 1.10.0? Could I potentially pull the code out
>>>>>>>>> for the
>>>>>>>>> 1.11.0 Debezium connector and compile it in my project using Flink
>>>>>>>>> 1.10.0
>>>>>>>>> api?
>>>>>>>>>
>>>>>>>>> For context, I plan on doing some fairly complicated long lived
>>>>>>>>> stateful joins / materialization using the Table API over data
>>>>>>>>> ingested
>>>>>>>>> from Postgres and possibly MySQL.
>>>>>>>>>
>>>>>>>>> Appreciate any help, thanks!
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>>
>>>>>>>>> Rex Fenley | Software Engineer - Mobile and Backend
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Remind.com <https://www.remind.com/> | BLOG
>>>>>>>>> <http://blog.remind.com/> | FOLLOW US
>>>>>>>>> <https://twitter.com/remindhq> | LIKE US
>>>>>>>>> <https://www.facebook.com/remindhq>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>>
>>>>>>> Rex Fenley | Software Engineer - Mobile and Backend
>>>>>>>
>>>>>>>
>>>>>>> Remind.com <https://www.remind.com/> | BLOG
>>>>>>> <http://blog.remind.com/> | FOLLOW US
>>>>>>> <https://twitter.com/remindhq> | LIKE US
>>>>>>> <https://www.facebook.com/remindhq>
>>>>>>>
>>>>>>
>>>>>
>>>>> --
>>>>>
>>>>> Rex Fenley | Software Engineer - Mobile and Backend
>>>>>
>>>>>
>>>>> Remind.com <https://www.remind.com/> | BLOG <http://blog.remind.com/>
>>>>> | FOLLOW US <https://twitter.com/remindhq> | LIKE US
>>>>> <https://www.facebook.com/remindhq>
>>>>>
>>>>
>>>
>>> --
>>>
>>> Rex Fenley | Software Engineer - Mobile and Backend
>>>
>>>
>>> Remind.com <https://www.remind.com/> | BLOG <http://blog.remind.com/>
>>> | FOLLOW US <https://twitter.com/remindhq> | LIKE US
>>> <https://www.facebook.com/remindhq>
>>>
>>
>>
>> --
>>
>> Rex Fenley | Software Engineer - Mobile and Backend
>>
>>
>> Remind.com <https://www.remind.com/> | BLOG <http://blog.remind.com/>
>> | FOLLOW US <https://twitter.com/remindhq> | LIKE US
>> <https://www.facebook.com/remindhq>
>>
>
--
Rex Fenley | Software Engineer - Mobile and Backend
Remind.com <https://www.remind.com/> | BLOG <http://blog.remind.com/>
| FOLLOW
US <https://twitter.com/remindhq> | LIKE US
<https://www.facebook.com/remindhq>
