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https://issues.apache.org/jira/browse/FLINK-22239?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yuan Mei updated FLINK-22239:
-----------------------------
Description:
JdbcXaSinkFunction uses Xa protocol/interface to implement exactly-once
guarantee (within each subtask partition).
Xa is a protocol/interface designed for two-phase commit of distributed DBS
(RMs).
XA guarantees that transactional updates are committed in all of the
participating databases, or are fully rolled back out of all of the databases,
reverting to the state prior to the start of the transaction.
Hence some of the dbs that support XA treats XA transaction as global trans,
and some of them does not support multiple global trans (per connection) at a
time, MYSQL for example (see FLINK-21743)
was:JdbcXaSinkFunction
> Improve support for JdbcXaSinkFunction
> --------------------------------------
>
> Key: FLINK-22239
> URL: https://issues.apache.org/jira/browse/FLINK-22239
> Project: Flink
> Issue Type: Improvement
> Components: Connectors / JDBC
> Reporter: Yuan Mei
> Priority: Major
> Fix For: 1.14.0
>
>
> JdbcXaSinkFunction uses Xa protocol/interface to implement exactly-once
> guarantee (within each subtask partition).
> Xa is a protocol/interface designed for two-phase commit of distributed DBS
> (RMs).
> XA guarantees that transactional updates are committed in all of the
> participating databases, or are fully rolled back out of all of the
> databases, reverting to the state prior to the start of the transaction.
> Hence some of the dbs that support XA treats XA transaction as global trans,
> and some of them does not support multiple global trans (per connection) at a
> time, MYSQL for example (see FLINK-21743)
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