aplex commented on a change in pull request #2876: GOBBLIN-1034: Ensure
underlying writers are expired from the Partitio…
URL: https://github.com/apache/incubator-gobblin/pull/2876#discussion_r372672919
##########
File path:
gobblin-core/src/test/java/org/apache/gobblin/writer/PartitionedWriterTest.java
##########
@@ -176,4 +165,31 @@ public void testControlMessageHandler() throws
IOException {
writer.close();
}
+
+ @Test
+ public void testPartitionWriterCacheRemovalListener()
+ throws IOException, InterruptedException {
+ State state = new State();
+ state.setProp(ConfigurationKeys.WRITER_PARTITIONER_CLASS,
TestPartitioner.class.getCanonicalName());
+ state.setProp(PartitionedDataWriter.PARTITIONED_WRITER_CACHE_TTL_SECONDS,
1);
+ TestPartitionAwareWriterBuilder builder = new
TestPartitionAwareWriterBuilder();
+
+ PartitionedDataWriter writer = new PartitionedDataWriter<String,
String>(builder, state);
+
+ String record1 = "abc";
+ writer.writeEnvelope(new RecordEnvelope(record1));
+
+ String record2 = "123";
+ writer.writeEnvelope(new RecordEnvelope(record2));
+
+ //Sleep for more than cache expiration interval
+ Thread.sleep(1500);
Review comment:
Is there a way to test this without Thread.sleep, e.g. with some virtual
time or by explicitly triggering expiration?
Using sleeps can slow down the test suite, and also make it flakey. For
example, if the tests are running on overloaded Tracis CI machine, the cache
timer that normally runs every second, can run every 3rd second, and the test
will randomly fail.
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