pnowojski commented on a change in pull request #8455:
[FLINK-12284,FLINK-12637][Network,Metrics]Fix the incorrect inputBufferUsage
metric in credit-based network mode
URL: https://github.com/apache/flink/pull/8455#discussion_r294995097
##########
File path:
flink-runtime/src/test/java/org/apache/flink/runtime/io/network/partition/consumer/InputBuffersMetricsTest.java
##########
@@ -117,80 +118,61 @@ public void testBufferUsageMetrics() throws IOException,
InterruptedException {
assertEquals(buffersPerChannel,
exclusiveBuffersUsageGauge.calculateBufferPoolSize(inputGate2));
assertEquals(extraNetworkBuffersPerGate,
floatingBuffersUsageGauge.calculateBufferPoolSize(inputGate2));
- List<Buffer> exclusiveBuffers = new ArrayList<>();
// test for exclusive buffer used
-
exclusiveBuffers.add(remoteInputChannel1.requestBuffer());
- assertEquals(1,
exclusiveBuffersUsageGauge.calculateUsedBuffers(inputGate1));
-
- for (int i = 0; i < buffersPerChannel; i++){
- Buffer buffer =
remoteInputChannel1.requestBuffer();
- if (buffer != null) {
- exclusiveBuffers.add(buffer);
- } else {
- break;
- }
- }
- assertEquals(buffersPerChannel,
exclusiveBuffers.size());
+ drainBuffer(buffersPerChannel, remoteInputChannel1);
+
assertEquals(buffersPerChannel,
exclusiveBuffersUsageGauge.calculateUsedBuffers(inputGate1));
assertEquals(1 / 3.0,
exclusiveBuffersUsageGauge.getValue(), 0.0001);
assertEquals(buffersPerChannel /
(extraNetworkBuffersPerGate * 2 + buffersPerChannel * 3.0),
inputBufferPoolUsageGauge.getValue(), 0.0001);
- for (int i = 0; i < buffersPerChannel; i++){
- Buffer buffer =
remoteInputChannel2.requestBuffer();
- if (buffer != null) {
- exclusiveBuffers.add(buffer);
- } else {
- break;
- }
- }
- assertEquals(buffersPerChannel * 2,
exclusiveBuffers.size());
+ drainBuffer(buffersPerChannel, remoteInputChannel2);
+
assertEquals(buffersPerChannel * 2,
exclusiveBuffersUsageGauge.calculateUsedBuffers(inputGate1));
assertEquals(2 / 3.0,
exclusiveBuffersUsageGauge.getValue(), 0.0001);
assertEquals(buffersPerChannel * 2 /
(extraNetworkBuffersPerGate * 2 + buffersPerChannel * 3.0),
inputBufferPoolUsageGauge.getValue(), 0.0001);
// test for floating buffer used
- List<Buffer> floatingBuffers = new ArrayList<>();
-
remoteInputChannel1.requestSubpartition(0);
remoteInputChannel1.onSenderBacklog(3);
assertEquals(buffersPerChannel + 3,
remoteInputChannel1.unsynchronizedGetFloatingBuffersAvailable());
- for (int i = 0; i < buffersPerChannel + 3; i++) {
- Buffer buffer =
remoteInputChannel1.requestBuffer();
- if (buffer != null) {
- floatingBuffers.add(buffer);
- } else {
- break;
- }
- }
+ drainBuffer(buffersPerChannel + 3, remoteInputChannel1);
+
assertEquals(0,
remoteInputChannel1.unsynchronizedGetFloatingBuffersAvailable());
assertEquals(buffersPerChannel * 2,
exclusiveBuffersUsageGauge.calculateUsedBuffers(inputGate1));
assertEquals(2 / 3.0,
exclusiveBuffersUsageGauge.getValue(), 0.0001);
assertEquals((buffersPerChannel * 2 + buffersPerChannel
+ 3) / (extraNetworkBuffersPerGate * 2 + buffersPerChannel * 3.0),
inputBufferPoolUsageGauge.getValue(), 0.0001);
List<MemorySegment> segments = new ArrayList<>();
- for (Buffer buffer : exclusiveBuffers) {
- segments.add(buffer.getMemorySegment());
- }
+
network.getNetworkBufferPool().recycleMemorySegments(segments);
Review comment:
This I think is a left over - dead code - `segments` seemts to be always
empty.
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