DBZ-8119 Seed endScn
as Scn.NULL
This commit is contained in:
parent
9acc2f87c0
commit
ea908249a1
@ -83,7 +83,7 @@ public class LogMinerStreamingChangeEventSource implements StreamingChangeEventS
|
||||
private final boolean continuousMining;
|
||||
|
||||
private Scn startScn; // startScn is the **exclusive** lower bound for mining
|
||||
private Scn endScn;
|
||||
private Scn endScn = Scn.NULL;
|
||||
private Scn snapshotScn;
|
||||
private List<LogFile> currentLogFiles;
|
||||
private List<BigInteger> currentRedoLogSequences;
|
||||
@ -733,7 +733,7 @@ private Scn calculateUpperBounds(Scn startScn, Scn prevEndScn) throws SQLExcepti
|
||||
result = upperBoundsScn;
|
||||
}
|
||||
else {
|
||||
if (prevEndScn != null && batchUpperBoundsScn.compareTo(prevEndScn) <= 0) {
|
||||
if (!prevEndScn.isNull() && batchUpperBoundsScn.compareTo(prevEndScn) <= 0) {
|
||||
// Batch size is too small, make a large leap and use current SCN
|
||||
LOGGER.debug("Batch size upper bounds {} too small, using maximum read position {} instead.", batchUpperBoundsScn, upperBoundsScn);
|
||||
result = upperBoundsScn;
|
||||
@ -745,7 +745,7 @@ private Scn calculateUpperBounds(Scn startScn, Scn prevEndScn) throws SQLExcepti
|
||||
LOGGER.debug("Batch upper bounds {} is before start SCN {}, fallback to maximum read position {}.", batchUpperBoundsScn, startScn, upperBoundsScn);
|
||||
result = upperBoundsScn;
|
||||
}
|
||||
else if (prevEndScn != null) {
|
||||
else if (!prevEndScn.isNull()) {
|
||||
final Scn deltaScn = upperBoundsScn.subtract(prevEndScn);
|
||||
if (deltaScn.compareTo(Scn.valueOf(connectorConfig.getLogMiningScnGapDetectionGapSizeMin())) > 0) {
|
||||
Optional<Instant> prevEndScnTimestamp = jdbcConnection.getScnToTimestamp(prevEndScn);
|
||||
|
Loading…
Reference in New Issue
Block a user