big-data/hadoop
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

HADOOP-17995. Stale record should be remove when DataNodePeerMetrics#dumpSendPacketDownstreamAvgInfoAsJson (#3708)

Browse Source
This commit is contained in:
huhaiyang 2021-11-25 10:20:42 +08:00 committed by GitHub
parent 98fe0d0fc3
commit 99b161dec7
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 16 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/lib/MutableRollingAverages.java
View File

@ -167,7 +167,7 @@ synchronized void replaceScheduledTask(int windows, long interval,
}
@Override
public void snapshot(MetricsRecordBuilder builder, boolean all) {
public synchronized void snapshot(MetricsRecordBuilder builder, boolean all) {
if (all || changed()) {
for (final Entry<String, LinkedBlockingDeque<SumAndCount>> entry
: averages.entrySet()) {
@ -179,8 +179,11 @@ public void snapshot(MetricsRecordBuilder builder, boolean all) {
long totalCount = 0;
for (final SumAndCount sumAndCount : entry.getValue()) {
totalCount += sumAndCount.getCount();
totalSum += sumAndCount.getSum();
if (Time.monotonicNow() - sumAndCount.getSnapshotTimeStamp()
< recordValidityMs) {
totalCount += sumAndCount.getCount();
totalSum += sumAndCount.getSum();
}
}
if (totalCount != 0) {

10
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataNodePeerMetrics.java
View File

@ -122,10 +122,16 @@ public void testRemoveStaleRecord() throws Exception {
GenericTestUtils.waitFor(
() -> rollingAverages.getStats(numSamples).size() > 0, 500, 5000);
assertEquals(3, rollingAverages.getStats(numSamples).size());
String json = peerMetrics.dumpSendPacketDownstreamAvgInfoAsJson();
for (String peerAddr : peerAddrList) {
assertThat(json, containsString(peerAddr));
}
/* wait for stale report to be removed */
GenericTestUtils.waitFor(
() -> rollingAverages.getStats(numSamples).isEmpty(), 500, 10000);
assertEquals(0, rollingAverages.getStats(numSamples).size());
json = peerMetrics.dumpSendPacketDownstreamAvgInfoAsJson();
assertEquals("{}", json);
/* dn can report peer metrics normally when it added back to cluster */
for (String peerAddr : peerAddrList) {
@ -138,6 +144,10 @@ public void testRemoveStaleRecord() throws Exception {
GenericTestUtils.waitFor(
() -> rollingAverages.getStats(numSamples).size() > 0, 500, 10000);
assertEquals(3, rollingAverages.getStats(numSamples).size());
json = peerMetrics.dumpSendPacketDownstreamAvgInfoAsJson();
for (String peerAddr : peerAddrList) {
assertThat(json, containsString(peerAddr));
}
}
/**