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KAFKA-13610: Deprecate log.cleaner.enable configuration #19472

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Merged
merged 6 commits into from
Apr 16, 2025
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Merged

KAFKA-13610: Deprecate log.cleaner.enable configuration #19472

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e311cc8
KAFKA-13610: Depreacte log.cleaner.enable configuration
frankvicky Apr 15, 2025
19721b2
address comments
frankvicky Apr 15, 2025
e2cbbb5
Merge branch 'trunk' into KAFKA-13610
frankvicky Apr 15, 2025
bc80a60
deprecate docs
frankvicky Apr 15, 2025
9f7c406
Merge branch 'trunk' into KAFKA-13610
frankvicky Apr 15, 2025
0e6a349
add forRemoval
frankvicky Apr 15, 2025
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7 changes: 7 additions & 0 deletions docs/upgrade.html
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Expand Up @@ -32,6 +32,13 @@ <h6><a id="upgrade_410_notable" href="#upgrade_410_notable">Notable changes in 4
</li>
</ul>
</li>
<li><b>Broker</b>
<ul>
<li>
The configuration <code>log.cleaner.enable</code> is deprecated. Users should no longer set it to <code>false</code>.
</li>
</ul>
</li>
<li><b>Producer</b>
<ul>
<li>The <code>flush</code> method now detects potential deadlocks and prohibits its use inside a callback. This change prevents unintended blocking behavior, which was a known risk in earlier versions.
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4 changes: 3 additions & 1 deletion storage/src/main/java/org/apache/kafka/storage/internals/log/CleanerConfig.java
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Expand Up @@ -50,6 +50,7 @@ public class CleanerConfig {
public static final String LOG_CLEANER_DEDUPE_BUFFER_LOAD_FACTOR_PROP = ServerTopicConfigSynonyms.LOG_CLEANER_PREFIX + "io.buffer.load.factor";
public static final String LOG_CLEANER_BACKOFF_MS_PROP = ServerTopicConfigSynonyms.LOG_CLEANER_PREFIX + "backoff.ms";
public static final String LOG_CLEANER_MIN_CLEAN_RATIO_PROP = ServerTopicConfigSynonyms.serverSynonym(TopicConfig.MIN_CLEANABLE_DIRTY_RATIO_CONFIG);
@Deprecated(since = "4.1")
public static final String LOG_CLEANER_ENABLE_PROP = ServerTopicConfigSynonyms.LOG_CLEANER_PREFIX + "enable";
public static final String LOG_CLEANER_DELETE_RETENTION_MS_PROP = ServerTopicConfigSynonyms.serverSynonym(TopicConfig.DELETE_RETENTION_MS_CONFIG);
public static final String LOG_CLEANER_MIN_COMPACTION_LAG_MS_PROP = ServerTopicConfigSynonyms.serverSynonym(TopicConfig.MIN_COMPACTION_LAG_MS_CONFIG);
Expand All @@ -68,7 +69,8 @@ public class CleanerConfig {
public static final String LOG_CLEANER_DEDUPE_BUFFER_LOAD_FACTOR_DOC = "Log cleaner dedupe buffer load factor. The percentage full the dedupe buffer can become. A higher value " +
"will allow more log to be cleaned at once but will lead to more hash collisions";
public static final String LOG_CLEANER_BACKOFF_MS_DOC = "The amount of time to sleep when there are no logs to clean";
public static final String LOG_CLEANER_ENABLE_DOC = "Enable the log cleaner process to run on the server. Should be enabled if using any topics with a cleanup.policy=compact including the internal offsets topic. If disabled those topics will not be compacted and continually grow in size.";
public static final String LOG_CLEANER_ENABLE_DOC = "This configuration has been deprecated and will be remove in Kafka 5.0. User shouldn't set it to false anymore." +
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nit: Add a space at the end of the sentence.

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I will add a reference to KIP-1148. It should be enough.

"Enable the log cleaner process to run on the server. Should be enabled if using any topics with a cleanup.policy=compact including the internal offsets topic. If disabled those topics will not be compacted and continually grow in size.";
public static final String LOG_CLEANER_DELETE_RETENTION_MS_DOC = "The amount of time to retain tombstone message markers for log compacted topics. This setting also gives a bound " +
"on the time in which a consumer must complete a read if they begin from offset 0 to ensure that they get a valid snapshot of the final stage (otherwise " +
"tombstones messages may be collected before a consumer completes their scan).";
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