zentol commented on a change in pull request #17671:
URL: https://github.com/apache/flink/pull/17671#discussion_r742948330
##########
File path:
flink-runtime/src/test/java/org/apache/flink/runtime/scheduler/adaptive/AdaptiveSchedulerClusterITCase.java
##########
@@ -141,6 +158,93 @@ public void testAutomaticScaleUp() throws Exception {
assertTrue(jobResultFuture.join().isSuccess());
}
+ @Test
+ public void testCheckpointStatsPersistedAcrossRescale() throws Exception {
+ final MiniCluster miniCluster = miniClusterResource.getMiniCluster();
+
+ JobVertex jobVertex = new JobVertex("jobVertex", JOB_VERTEX_ID);
+ jobVertex.setInvokableClass(CheckpointingNoOpInvokable.class);
+ jobVertex.setParallelism(PARALLELISM);
+
+ final JobGraph jobGraph =
JobGraphTestUtils.streamingJobGraph(jobVertex);
+ jobGraph.setSnapshotSettings(
+ new JobCheckpointingSettings(
+ CheckpointCoordinatorConfiguration.builder()
+ .setCheckpointInterval(100)
+ .setCheckpointTimeout(1000)
+ .build(),
+ null));
+
+ miniCluster.submitJob(jobGraph).join();
+
+ // wait until some checkpoints have been completed
+ CommonTestUtils.waitUntilCondition(
+ () ->
+ miniCluster
+ .getExecutionGraph(jobGraph.getJobID())
+ .thenApply(
+ eg ->
+ eg.getCheckpointStatsSnapshot()
+ .getCounts()
+
.getNumberOfCompletedCheckpoints()
+ > 0)
+ .get(),
+ Deadline.fromNow(Duration.ofHours(1)));
+
+ miniCluster.terminateTaskManager(0);
+
+ waitUntilParallelismForVertexReached(
+ jobGraph.getJobID(),
+ JOB_VERTEX_ID,
+ NUMBER_SLOTS_PER_TASK_MANAGER * (NUMBER_TASK_MANAGERS - 1));
+
+ // check that the very first checkpoint is still accessible
+ final List<AbstractCheckpointStats> checkpointHistory =
+ miniCluster
+ .getExecutionGraph(jobGraph.getJobID())
+ .thenApply(
+ eg ->
eg.getCheckpointStatsSnapshot().getHistory().getCheckpoints())
+ .get();
+ assertThat(checkpointHistory.get(checkpointHistory.size() -
1).getCheckpointId(), is(1L));
Review comment:
that is correct. I don't know why that is the case, or why this is done
by the tracker and not the rest api though.
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