alexey.rassokhin/tet123
1
0
Fork 0
Code Issues Pull Requests 1 Packages Projects Releases Wiki Activity

DBZ-5005 adjust LogMiner batch size based on comparison with currently used batch size

Browse Source
This commit is contained in:
Jan Doms 2022-04-19 16:32:20 +02:00 committed by Chris Cranford
parent 9ad9a5f444
commit f698a59481
2 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
COPYRIGHT.txt
View File

@ -139,6 +139,7 @@ Guy Korland
Guy Pascarella
Grzegorz Kołakowski
Jacob Gminder
Jan Doms
Jan Hendrik Dolling
Jason Schweier
Jiabao Sun

8
debezium-connector-oracle/src/main/java/io/debezium/connector/oracle/logminer/LogMinerStreamingChangeEventSource.java
View File

@ -607,16 +607,16 @@ private Scn calculateEndScn(OracleConnection connection, Scn startScn, Scn prevE
streamingMetrics.setCurrentScn(currentScn);
// Add the current batch size to the starting system change number
Scn topScnToMine = startScn.add(Scn.valueOf(streamingMetrics.getBatchSize()));
final Scn currentBatchSizeScn = Scn.valueOf(streamingMetrics.getBatchSize());
Scn topScnToMine = startScn.add(currentBatchSizeScn);
// Control adjusting batch size
boolean topMiningScnInFarFuture = false;
final Scn defaultBatchScn = Scn.valueOf(connectorConfig.getLogMiningBatchSizeDefault());
if (topScnToMine.subtract(currentScn).compareTo(defaultBatchScn) > 0) {
if (topScnToMine.subtract(currentScn).compareTo(currentBatchSizeScn) > 0) {
streamingMetrics.changeBatchSize(false, connectorConfig.isLobEnabled());
topMiningScnInFarFuture = true;
}
if (currentScn.subtract(topScnToMine).compareTo(defaultBatchScn) > 0) {
if (currentScn.subtract(topScnToMine).compareTo(currentBatchSizeScn) > 0) {
streamingMetrics.changeBatchSize(true, connectorConfig.isLobEnabled());
}