mxm commented on code in PR #18582:
URL: https://github.com/apache/iceberg/pull/18582#discussion_r4315456895
##########
flink/v2.3/flink/src/main/java/org/apache/iceberg/flink/sink/dynamic/TableUpdater.java:
##########
@@ -78,13 +77,18 @@ private void findOrCreateTable(
TableIdentifier identifier, Schema schema, PartitionSpec spec,
TableCreator tableCreator) {
Tuple2<Boolean, Exception> exists = cache.exists(identifier);
if (Boolean.FALSE.equals(exists.f0)) {
- if (exists.f1 instanceof NoSuchNamespaceException) {
+ // The lookup cannot tell a missing table from a missing namespace: the
Glue catalog, for
+ // instance, reports a table in a namespace that does not exist as
NoSuchTableException. Ask
+ // the catalog directly.
+ if (catalog instanceof SupportsNamespaces &&
!identifier.namespace().isEmpty()) {
SupportsNamespaces catalogWithNameSpace = (SupportsNamespaces) catalog;
- LOG.info("Namespace {} not found during table search. Creating
namespace", identifier);
- try {
- catalogWithNameSpace.createNamespace(identifier.namespace());
- } catch (AlreadyExistsException e) {
- LOG.debug("Namespace {} created concurrently",
identifier.namespace(), e);
+ if (!catalogWithNameSpace.namespaceExists(identifier.namespace())) {
+ LOG.info("Namespace {} not found during table search. Creating
namespace", identifier);
+ try {
+ catalogWithNameSpace.createNamespace(identifier.namespace());
+ } catch (AlreadyExistsException e) {
+ LOG.debug("Namespace {} created concurrently",
identifier.namespace(), e);
+ }
}
Review Comment:
I think we must throw if the catalog doesn't implement SupportsNamespaces
(else branch) or we have another type of exception.
##########
flink/v2.3/flink/src/main/java/org/apache/iceberg/flink/sink/dynamic/TableUpdater.java:
##########
@@ -78,13 +77,18 @@ private void findOrCreateTable(
TableIdentifier identifier, Schema schema, PartitionSpec spec,
TableCreator tableCreator) {
Tuple2<Boolean, Exception> exists = cache.exists(identifier);
if (Boolean.FALSE.equals(exists.f0)) {
- if (exists.f1 instanceof NoSuchNamespaceException) {
+ // The lookup cannot tell a missing table from a missing namespace: the
Glue catalog, for
+ // instance, reports a table in a namespace that does not exist as
NoSuchTableException. Ask
+ // the catalog directly.
+ if (catalog instanceof SupportsNamespaces &&
!identifier.namespace().isEmpty()) {
Review Comment:
```java
if (exists.f1 instanceof NoSuchNamespaceException || exists.f1 instanceof
NoSuchTableException) {
```
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