mxm commented on code in PR #18356:
URL: https://github.com/apache/iceberg/pull/18356#discussion_r4185528205
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flink/v2.3/flink/src/main/java/org/apache/iceberg/flink/sink/dynamic/TableUpdater.java:
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@@ -104,23 +105,39 @@ private void findOrCreateBranch(TableIdentifier
identifier, String branch) {
String fromCache = cache.branch(identifier, branch);
if (fromCache == null) {
Table table = catalog.loadTable(identifier);
- try {
- table.manageSnapshots().createBranch(branch).commit();
- LOG.info("Branch {} for {} created", branch, identifier);
- } catch (CommitFailedException e) {
- table.refresh();
- if (table.refs().containsKey(branch)) {
- LOG.debug("Branch {} concurrently created for {}.", branch,
identifier);
- } else {
- LOG.error("Failed to create branch {} for {}.", branch, identifier,
e);
- throw e;
- }
+ // Another writer may have created the branch since the cache loaded the
table.
+ if (hasBranch(table, branch)) {
+ LOG.debug("Branch {} for {} created by another writer.", branch,
identifier);
+ } else {
+ createBranch(identifier, table, branch);
}
Review Comment:
Got it.
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