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HADOOP-18567. LogThrottlingHelper: properly trigger dependent recorders in cases of infrequent logging (#5215) 

Signed-off-by: Erik Krogen <xkrogen@apache.org>
Co-authored-by: Chengbing Liu <liuchengbing@qiyi.com>

(cherry picked from commit ca3526da92)
This commit is contained in:
Chengbing Liu 2022-12-17 01:15:11 +08:00 committed by Erik Krogen
parent d43fa95043
commit bfc916e7b0
2 changed files with 25 additions and 3 deletions
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14
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/log/LogThrottlingHelper.java
View File

@ -262,9 +262,15 @@ public class LogThrottlingHelper {
if (primaryRecorderName.equals(recorderName) &&
currentTimeMs - minLogPeriodMs >= lastLogTimestampMs) {
lastLogTimestampMs = currentTimeMs;
for (LoggingAction log : currentLogs.values()) {
log.setShouldLog();
currentLogs.replaceAll((key, log) -> {
LoggingAction newLog = log;
if (log.hasLogged()) {
// create a fresh log since the old one has already been logged
newLog = new LoggingAction(log.getValueCount());
}
newLog.setShouldLog();
return newLog;
});
}
if (currentLog.shouldLog()) {
currentLog.setHasLogged();
@ -357,6 +363,10 @@ public class LogThrottlingHelper {
hasLogged = true;
}
private int getValueCount() {
return stats.length;
}
private void recordValues(double... values) {
if (values.length != stats.length) {
throw new IllegalArgumentException("received " + values.length +

12
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/log/TestLogThrottlingHelper.java
View File

@ -142,6 +142,18 @@ public class TestLogThrottlingHelper {
assertTrue(helper.record("bar", 0).shouldLog());
}
@Test
public void testInfrequentPrimaryAndDependentLoggers() {
helper = new LogThrottlingHelper(LOG_PERIOD, "foo", timer);
assertTrue(helper.record("foo", 0).shouldLog());
assertTrue(helper.record("bar", 0).shouldLog());
// Both should log once the period has elapsed
assertTrue(helper.record("foo", LOG_PERIOD).shouldLog());
assertTrue(helper.record("bar", LOG_PERIOD).shouldLog());
}
@Test
public void testMultipleLoggersWithValues() {
helper = new LogThrottlingHelper(LOG_PERIOD, "foo", timer);