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ranqiqiang commented on FLINK-14902: ------------------------------------ [~ana4] I don‘t want to modify too much code.I jush create a JdbcConnectionPoolManager to keep the JdbcConnectionProvider and FieldNamedPreparedStatement. The coke like [async-jdbc|https://github.com/ranqiqiang/flink.git].my brach is async-jdbc Now, I met a problem when I run "mvn clean verify" it's lasts a long time until it failed. It's show run "ElasticsearchWriterITCase" got an error : "Can't get Docker image: RemoteDockerImage(imageName=docker.elastic.co/elasticsearch/elasticsearch:7.15.2, imagePullPolicy=DefaultPullPolicy())" I try to solve it, can you give me some advices ? > JDBCTableSource support AsyncLookupFunction > ------------------------------------------- > > Key: FLINK-14902 > URL: https://issues.apache.org/jira/browse/FLINK-14902 > Project: Flink > Issue Type: Improvement > Components: Connectors / JDBC > Affects Versions: 1.9.0 > Reporter: hailong wang > Assignee: ranqiqiang > Priority: Minor > Labels: auto-deprioritized-major, auto-unassigned, > pull-request-available > Time Spent: 10m > Remaining Estimate: 0h > > JDBCTableSource support AsyncLookupFunction -- This message was sent by Atlassian Jira (v8.20.1#820001)