junrao commented on code in PR #20334:
URL: https://github.com/apache/kafka/pull/20334#discussion_r2294227533
##########
core/src/test/scala/integration/kafka/server/QuorumTestHarness.scala:
##########
@@ -260,11 +260,13 @@ abstract class QuorumTestHarness extends Logging {
props.setProperty(MetadataLogConfig.METADATA_LOG_DIR_CONFIG,
metadataDir.getAbsolutePath)
val proto = controllerListenerSecurityProtocol.toString
val securityProtocolMaps = extraControllerSecurityProtocols().map(sc => sc
+ ":" + sc).mkString(",")
- val listeners = extraControllerSecurityProtocols().map(sc => sc +
"://localhost:0").mkString(",")
- val listenerNames = extraControllerSecurityProtocols().mkString(",")
+ val listeners = extraControllerSecurityProtocols().map(sc => sc +
"://localhost:0").mkString(",").trim
Review Comment:
Why is `trim` needed? Ditto below.
##########
clients/src/main/java/org/apache/kafka/common/config/TopicConfig.java:
##########
@@ -159,7 +159,9 @@ public class TopicConfig {
"<a href=\"#compaction\">log compaction</a>, which retains the latest
value for each key. " +
"It is also possible to specify both policies in a comma-separated
list (e.g. \"delete,compact\"). " +
"In this case, old segments will be discarded per the retention time
and size configuration, " +
- "while retained segments will be compacted.";
+ "while retained segments will be compacted." +
+ "An empty list means infinite retention - no cleanup policies will be
applied and log segments " +
+ "will be retained indefinitely.";
Review Comment:
It would be useful to mention that local retention is still enforced with
remote storage enabled. Also, could we update the doc for cleanup.policy in
ServerLogConfigs too?
##########
storage/src/main/java/org/apache/kafka/storage/internals/log/LogConfig.java:
##########
@@ -561,9 +561,8 @@ public static void
validateRemoteStorageOnlyIfSystemEnabled(Map<?, ?> props, boo
@SuppressWarnings("unchecked")
private static void
validateRemoteStorageRequiresDeleteCleanupPolicy(Map<?, ?> props) {
List<String> cleanupPolicy = (List<String>)
props.get(TopicConfig.CLEANUP_POLICY_CONFIG);
- Set<String> policySet = cleanupPolicy.stream().map(policy ->
policy.toLowerCase(Locale.getDefault())).collect(Collectors.toSet());
- if (!Set.of(TopicConfig.CLEANUP_POLICY_DELETE).equals(policySet)) {
- throw new ConfigException("Remote log storage only supports topics
with cleanup.policy=delete");
+ if (!cleanupPolicy.isEmpty() && (cleanupPolicy.size() != 1 ||
!TopicConfig.CLEANUP_POLICY_DELETE.equals(cleanupPolicy.get(0)))) {
+ throw new ConfigException("Remote log storage only supports topics
with cleanup.policy=delete or cleanup.policy is empty list.");
Review Comment:
cleanup.policy is empty list => cleanup.policy being an empty list
##########
storage/src/main/java/org/apache/kafka/storage/internals/log/UnifiedLog.java:
##########
@@ -1879,16 +1879,25 @@ private int deleteSegments(List<LogSegment> deletable,
SegmentDeletionReason rea
/**
* If topic deletion is enabled, delete any local log segments that have
either expired due to time based
- * retention or because the log size is > retentionSize. Whether or not
deletion is enabled, delete any local
+ * retention or because the log size is > retentionSize. Empty
cleanup.policy with remote storage enabled
+ * behaves the same as deletion policy. Whether or not deletion is
enabled, delete any local
Review Comment:
Empty cleanup.policy with remote storage enabled behaves the same as
deletion policy => Empty cleanup.policy is the same as delete with infinite
retention. So, we only need to delete local segments if remote storage is
enabled.
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