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https://issues.apache.org/jira/browse/FLINK-16266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17044043#comment-17044043
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Jeff Zhang commented on FLINK-16266:
------------------------------------
AFAIK plugin mechanism is not ready for connectors. Someone others may know
more details.
> es6 & 7 table sql connector conflicts each other
> ------------------------------------------------
>
> Key: FLINK-16266
> URL: https://issues.apache.org/jira/browse/FLINK-16266
> Project: Flink
> Issue Type: Bug
> Components: Connectors / ElasticSearch
> Affects Versions: 1.10.0
> Reporter: Benchao Li
> Priority: Major
>
> If we put {{flink-sql-connector-elasticsearch6}} and
> {{flink-sql-connector-elasticsearch7}} into {{/lib}} at the same time, and
> use it in {{sql-client}}, will get exceptions like:
>
> {code:java}
> [ERROR] Could not execute SQL statement. Reason:
> java.lang.AbstractMethodError:
> org.apache.flink.streaming.connectors.elasticsearch.ElasticsearchUpsertTableSinkFactoryBase.createElasticsearchUpsertTableSink(ZLorg/apache/flink/table/api/TableSchema;Ljava/util/List;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Lorg/apache/flink/api/common/serialization/SerializationSchema;Lorg/apache/flink/elasticsearch6/shaded/org/elasticsearch/common/xcontent/XContentType;Lorg/apache/flink/streaming/connectors/elasticsearch/ActionRequestFailureHandler;Ljava/util/Map;)Lorg/apache/flink/streaming/connectors/elasticsearch/ElasticsearchUpsertTableSinkBase;
> {code}
>
> After analyzing the exceptions, IMO, it's because
> {{flink-connector-elasticsearch-base}} is included into both
> {{flink-sql-connector-elasticsearch6}} and
> {{flink-sql-connector-elasticsearch7. And
> }}{{flink-connector-elasticsearch-base}}{{ has different implementation in 6
> & 7, because the version of elastic-search is different.}}
>
> {{A simple way for fixing this is we can relocate
> }}{{flink-connector-elasticsearch-base in
> }}{{flink-sql-connector-elasticsearch6}}{{ and
> }}{{flink-sql-connector-elasticsearch7. For example for
> }}{{flink-sql-connector-elasticsearch7:}}
> {code:java}
> <relocation>
> <pattern>org.apache.flink.streaming.connectors.elasticsearch.</pattern>
>
> <shadedPattern>org.apache.flink.streaming.connectors.elasticsearch7.base.</shadedPattern>
> </relocation>
> {code}
> {{cc [~jark] [~twalthr] }}
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