pabloem commented on code in PR #24629:
URL: https://github.com/apache/beam/pull/24629#discussion_r1053591484
##########
sdks/java/io/debezium/src/main/java/org/apache/beam/io/debezium/KafkaSourceConsumerFn.java:
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@@ -127,6 +134,45 @@ public Coder<OffsetHolder> getRestrictionCoder() {
return SerializableCoder.of(OffsetHolder.class);
}
+ protected SourceRecord getOneRecord(Map<String, String> configuration) {
+ try {
+ SourceConnector connector =
connectorClass.getDeclaredConstructor().newInstance();
+ connector.start(configuration);
+
+ SourceTask task = (SourceTask)
connector.taskClass().getDeclaredConstructor().newInstance();
+ task.initialize(new BeamSourceTaskContext(null));
+ task.start(connector.taskConfigs(1).get(0));
+ List<SourceRecord> records = Lists.newArrayList();
+ int loops = 0;
+ while (records.size() == 0) {
+ if (loops > 3) {
+ throw new RuntimeException("could not fetch database schema");
+ }
+ records = task.poll();
+ // Waiting for the Database snapshot to finish.
+ Thread.sleep(2000);
Review Comment:
i thought about it, but since this is at expansion time, I didn't want to
increase the wait time by a lot - and there's only one connection at a time, so
it should be safe IMO.
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