chia7712 commented on code in PR #19371:
URL: https://github.com/apache/kafka/pull/19371#discussion_r2045952460
##########
core/src/main/scala/kafka/raft/KafkaMetadataLog.scala:
##########
@@ -583,35 +584,72 @@ object KafkaMetadataLog extends Logging {
scheduler: Scheduler,
config: MetadataLogConfig
): KafkaMetadataLog = {
- val props = new Properties()
- props.setProperty(TopicConfig.MAX_MESSAGE_BYTES_CONFIG,
config.maxBatchSizeInBytes.toString)
- props.setProperty(TopicConfig.SEGMENT_BYTES_CONFIG,
config.logSegmentBytes.toString)
- props.setProperty(TopicConfig.SEGMENT_MS_CONFIG,
config.logSegmentMillis.toString)
- props.setProperty(TopicConfig.FILE_DELETE_DELAY_MS_CONFIG,
ServerLogConfigs.LOG_DELETE_DELAY_MS_DEFAULT.toString)
-
- // Disable time and byte retention when deleting segments
- props.setProperty(TopicConfig.RETENTION_MS_CONFIG, "-1")
- props.setProperty(TopicConfig.RETENTION_BYTES_CONFIG, "-1")
+ val props: Properties = settingLogProperties(config)
LogConfig.validate(props)
val defaultLogConfig = new LogConfig(props)
- if (config.logSegmentBytes < config.logSegmentMinBytes) {
- throw new InvalidConfigurationException(
- s"Cannot set ${KRaftConfigs.METADATA_LOG_SEGMENT_BYTES_CONFIG} below
${config.logSegmentMinBytes}: ${config.logSegmentBytes}"
- )
- } else if (defaultLogConfig.retentionMs >= 0) {
- throw new InvalidConfigurationException(
- s"Cannot set ${TopicConfig.RETENTION_MS_CONFIG} above -1:
${defaultLogConfig.retentionMs}."
- )
- } else if (defaultLogConfig.retentionSize >= 0) {
- throw new InvalidConfigurationException(
- s"Cannot set ${TopicConfig.RETENTION_BYTES_CONFIG} above -1:
${defaultLogConfig.retentionSize}."
- )
+ validateConfig(config, defaultLogConfig)
+
+ val metadataLog: KafkaMetadataLog = createKafkaMetadataLog(topicPartition,
topicId, dataDir, time, scheduler, config, defaultLogConfig)
+
+ printWarningMessage(config, metadataLog)
+
+ // When recovering, truncate fully if the latest snapshot is after the log
end offset. This can happen to a follower
+ // when the follower crashes after downloading a snapshot from the leader
but before it could truncate the log fully.
+ metadataLog.truncateToLatestSnapshot()
+
+ metadataLog
+ }
+
+ private def printWarningMessage(config: MetadataLogConfig, metadataLog:
KafkaMetadataLog): Unit = {
+ // Print a warning if users have overridden the internal config
+ if (config.logSegmentMinBytes != KafkaRaftClient.MAX_BATCH_SIZE_BYTES) {
+ metadataLog.error(s"Overriding
${KRaftConfigs.METADATA_LOG_SEGMENT_MIN_BYTES_CONFIG} is only supported for
testing. Setting " +
+ s"this value too low may lead to an inability to write batches of
metadata records.")
}
+ }
+
+ // visible for testing
+ def internalApply(
Review Comment:
Excuse me, the strategy used by metadata log is to add a "internal" config
(`METADATA_LOG_SEGMENT_MIN_BYTES_CONFIG`) to change the (metadata) segment size
in testing, and that is what we want to address in this PR - we add a
"internal" config for regular log, and so the test can use the "smaller"
segment size.
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