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SEBSERV-445 better ping batch strategy?

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This commit is contained in:
anhefti 2023-05-31 09:12:46 +02:00
parent 9708d8610b
commit 6ccf74f9c1
2 changed files with 19 additions and 10 deletions
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6
src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/session/impl/ExamSessionServiceImpl.java
View file

@ -378,9 +378,9 @@ public class ExamSessionServiceImpl implements ExamSessionService {
@Override
public ClientConnectionDataInternal getConnectionDataInternal(final String connectionToken) {
//synchronized (ExamSessionCacheService.CLIENT_CONNECTION_CREATION_LOCK) {
return this.examSessionCacheService.getClientConnection(connectionToken);
//}
synchronized (ExamSessionCacheService.CLIENT_CONNECTION_CREATION_LOCK) {
return this.examSessionCacheService.getClientConnection(connectionToken);
}
}
@Override

23
src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/session/impl/SEBClientPingService.java
View file

@ -8,8 +8,9 @@
package ch.ethz.seb.sebserver.webservice.servicelayer.session.impl;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.apache.commons.lang3.StringUtils;
import org.ehcache.impl.internal.concurrent.ConcurrentHashMap;
@ -45,7 +46,7 @@ public class SEBClientPingService {
}
@Scheduled(
fixedDelayString = "${sebserver.webservice.api.exam.session.ping.batch.interval:500}",
fixedDelayString = "${sebserver.webservice.api.exam.session.ping.batch.interval:100}",
initialDelay = 1000)
public void processPings() {
if (this.pings.isEmpty()) {
@ -60,12 +61,16 @@ public class SEBClientPingService {
}
try {
final Map<String, String> pp = new HashMap<>(this.pings);
this.pings.clear();
final Set<String> connections = new HashSet<>(this.pings.keySet());
pp.entrySet()
.stream()
.forEach(entry -> processPing(entry.getKey(), entry.getValue(), startTime));
connections.stream().forEach(cid -> processPing(
cid,
this.pings.remove(cid),
Utils.getMillisecondsNow()));
// pp.entrySet()
// .stream()
// .forEach(entry -> processPing(entry.getKey(), entry.getValue(), startTime));
if (log.isTraceEnabled()) {
log.trace("****** Processing {} SEB pings tuck: {}", Utils.getMillisecondsNow() - startTime);
@ -83,6 +88,10 @@ public class SEBClientPingService {
final String connectionToken,
final String instructionConfirm) {
if (connectionToken == null) {
return null;
}
if (instructionConfirm != null) {
this.pings.put(connectionToken, instructionConfirm);
} else if (!this.pings.containsKey(connectionToken)) {