Samrat002 commented on PR #21458:
URL: https://github.com/apache/flink/pull/21458#issuecomment-1703902505
I have taken an example where a datagen table is created with 2 fields
`fname` and `lname`. Also created another table which is of type filesystem and
points to a specfic s3 path and format used is `csv`.
```
-- create a genertor table
CREATE TABLE generator (
fname STRING,
lname STRING
) WITH (
'connector' = 'datagen'
);
-- create a sample dynamic table with connector filesystem. It supports csv
as format.
CREATE TABLE `name_table` (
`fname` STRING,
`lname` STRING
) with (
'connector'='filesystem',
'format' = 'csv',
'path' = 's3://dbsamrat-flink-dev/data/default/name_table'
);
-- run a job to insert data in table (s3)
insert into name_table select * from generator;
```
Here is the below flink-conf file used for the cluster (also these configs
are picked in job )
Attaching the jobmanager log for insertion of data in csvformated s3 path
which uses CsvBulkWriter and maintains 2 phase commit.
[jobmanager.log](https://github.com/apache/flink/files/12504473/insert_jobmanager.log)
It can be noted that 2 phase commit is happening at checkpoint trigger.
Additional job executed seperately to read data from name_table.
[count_jobmanager.log](https://github.com/apache/flink/files/12504475/count_jobmanager.log)
@dannycranmer @hlteoh37 please review if this satisfy the guarentee for
exactly once .
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