mielientiev commented on code in PR #3845:
URL: https://github.com/apache/flink-cdc/pull/3845#discussion_r2258292595
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flink-cdc-connect/flink-cdc-source-connectors/flink-connector-mysql-cdc/src/main/java/io/debezium/connector/mysql/GtidUtils.java:
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@@ -36,36 +38,53 @@ public class GtidUtils {
public static GtidSet fixRestoredGtidSet(GtidSet serverGtidSet, GtidSet
restoredGtidSet) {
Map<String, GtidSet.UUIDSet> newSet = new HashMap<>();
serverGtidSet.getUUIDSets().forEach(uuidSet ->
newSet.put(uuidSet.getUUID(), uuidSet));
- for (GtidSet.UUIDSet uuidSet : restoredGtidSet.getUUIDSets()) {
- GtidSet.UUIDSet serverUuidSet = newSet.get(uuidSet.getUUID());
+ for (GtidSet.UUIDSet restoredUuidSet : restoredGtidSet.getUUIDSets()) {
Review Comment:
@lzshlzsh Thanks for the feedback
It's actually a very valid point. I think it may happen if you have a pool
of MySQL hosts, and some replication delay. And imagine that your pipeline got
restarted and reconnected to "lagging" host that haven't yet applied processed
transactions.
I implemented intersection logic with serverId range
Also I preserved original test logic like this `A:1-100`. Indeed, it looks
simpler.
Please review it again
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