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https://issues.apache.org/jira/browse/BEAM-3858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17132272#comment-17132272
]
Beam JIRA Bot commented on BEAM-3858:
-------------------------------------
This issue is assigned but has not received an update in 30 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> Data from JdbcIO.read() cannot pass to next transform on ApexRunner
> -------------------------------------------------------------------
>
> Key: BEAM-3858
> URL: https://issues.apache.org/jira/browse/BEAM-3858
> Project: Beam
> Issue Type: Bug
> Components: runner-apex
> Affects Versions: 2.3.0
> Environment: ubuntu16.04
> Reporter: huangjianhuang
> Assignee: Thomas Weise
> Priority: P2
> Labels: stale-assigned
>
> {code:java}
> public static void testJDBCRead(Pipeline pipeline) {
> System.out.println("in testJDBCRead()");
> pipeline.apply(JdbcIO.<String>read()
>
> .withDataSourceConfiguration(JdbcIO.DataSourceConfiguration.create(
> "com.mysql.jdbc.Driver",
> "jdbc:mysql://localhost:3307/libra")
> .withUsername("root")
> .withPassword("123456"))
> .withQuery("SELECT * FROM o_flow_account_login limit 3")
> .withCoder(StringUtf8Coder.of())
> .withRowMapper(new JdbcIO.RowMapper<String>() {
> public String mapRow(ResultSet resultSet) throws Exception {
> System.out.println("maprow");
> return "tmp";
> }
> })
> )
> .apply(ParDo.of(new DoFn<String, String>() {
> @ProcessElement
> public void process(ProcessContext context) {
> System.out.println("??");
> context.output(" ");
> }
> }));
> }
> {code}
> On DirectRunner or FlinkRunner, screen shows:
> {code:java}
> maprow
> maprow
> maprow
> ??
> ??
> ??
> {code}
> however on ApexRunner, screen only shows:
> {code:java}
> maprow
> maprow
> maprow
> {code}
>
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