horizonzy commented on code in PR #21096:
URL: https://github.com/apache/pulsar/pull/21096#discussion_r1314422374
##########
pulsar-broker-common/src/main/java/org/apache/pulsar/bookie/rackawareness/IsolatedBookieEnsemblePlacementPolicy.java:
##########
@@ -179,25 +185,34 @@ private static Pair<Set<String>, Set<String>>
getIsolationGroup(
return pair;
}
- private Set<BookieId> getExcludedBookiesWithIsolationGroups(int
ensembleSize,
+ @VisibleForTesting
+ Set<BookieId> getExcludedBookiesWithIsolationGroups(int ensembleSize,
Pair<Set<String>, Set<String>> isolationGroups) {
Set<BookieId> excludedBookies = new HashSet<>();
- if (isolationGroups != null &&
isolationGroups.getLeft().contains(PULSAR_SYSTEM_TOPIC_ISOLATION_GROUP)) {
+ if (isolationGroups != null &&
isolationGroups.getLeft().contains(PULSAR_SYSTEM_TOPIC_ISOLATION_GROUP)) {
return excludedBookies;
}
try {
if (bookieMappingCache != null) {
CompletableFuture<Optional<BookiesRackConfiguration>> future =
bookieMappingCache.get(BookieRackAffinityMapping.BOOKIE_INFO_ROOT_PATH);
+ BookiesRackConfiguration allGroupsBookieMapping;
Optional<BookiesRackConfiguration> optRes = (future.isDone()
&& !future.isCompletedExceptionally())
? future.join() : Optional.empty();
- if (optRes.isEmpty()) {
- return excludedBookies;
+ if (!optRes.isPresent()) {
+ if (cachedRackConfiguration != null) {
+ log.debug("The newest rack config is not available
now, use the cached rack config : {}",
+ cachedRackConfiguration);
+ allGroupsBookieMapping = cachedRackConfiguration;
+ } else {
+ throw new
KeeperException.NoNodeException(ZkBookieRackAffinityMapping.BOOKIE_INFO_ROOT_PATH);
Review Comment:
Not, we already caught this exception at line_284
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