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KAFKA-12177: apply log start offset retention before time and size based retention #10216

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Merged
junrao merged 4 commits into from
Mar 2, 2021
Merged

KAFKA-12177: apply log start offset retention before time and size based retention #10216

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af39e67
Reorder retention logic.
lbradstreet Feb 18, 2021
18eaf0a
Add test to show non-idempotency
lbradstreet Feb 23, 2021
65889e6
Put retention back in order
lbradstreet Feb 23, 2021
afc4c02
Readd final delete segments check
lbradstreet Mar 2, 2021
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4 changes: 3 additions & 1 deletion core/src/main/scala/kafka/log/Log.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -1864,7 +1864,9 @@ class Log(@volatile private var _dir: File,
*/
def deleteOldSegments(): Int = {
if (config.delete) {
deleteRetentionMsBreachedSegments() + deleteRetentionSizeBreachedSegments() + deleteLogStartOffsetBreachedSegments()
deleteLogStartOffsetBreachedSegments() +
deleteRetentionSizeBreachedSegments() +
deleteRetentionMsBreachedSegments()
} else {
deleteLogStartOffsetBreachedSegments()
}
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21 changes: 21 additions & 0 deletions core/src/test/scala/unit/kafka/log/LogTest.scala
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Expand Up @@ -1515,6 +1515,27 @@ class LogTest {
"expect a single producer state snapshot remaining")
}

@Test
def testRetentionIdempotency(): Unit = {
val logConfig = LogTest.createLogConfig(segmentBytes = 2048 * 5, retentionBytes = -1, retentionMs = 900, fileDeleteDelayMs = 0)
val log = createLog(logDir, logConfig)

log.appendAsLeader(TestUtils.records(List(new SimpleRecord(mockTime.milliseconds() + 100, "a".getBytes))), leaderEpoch = 0)
log.roll()
log.appendAsLeader(TestUtils.records(List(new SimpleRecord(mockTime.milliseconds(), "b".getBytes))), leaderEpoch = 0)
log.roll()
log.appendAsLeader(TestUtils.records(List(new SimpleRecord(mockTime.milliseconds() + 100, "c".getBytes))), leaderEpoch = 0)

mockTime.sleep(901)

log.updateHighWatermark(log.logEndOffset)
log.maybeIncrementLogStartOffset(1L, ClientRecordDeletion)
assertEquals(2, log.deleteOldSegments(),
"Expecting two segment deletions as log start offset retention should unblock time based retention")
assertEquals(0, log.deleteOldSegments())
}


@Test
def testLogStartOffsetMovementDeletesSnapshots(): Unit = {
val logConfig = LogTest.createLogConfig(segmentBytes = 2048 * 5, retentionBytes = -1, fileDeleteDelayMs = 0)
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