klion26 commented on code in PR #3339:
URL: https://github.com/apache/amoro/pull/3339#discussion_r1851445388
##########
amoro-format-hudi/src/main/java/org/apache/amoro/formats/hudi/HudiHadoopCatalog.java:
##########
@@ -155,6 +156,9 @@ public List<String> listTables(String database) {
() -> {
FileSystem fs = fs();
Path databasePath = new Path(warehouse, database);
+ if (!fs.exists(databasePath)) {
Review Comment:
As the Javadoc of `FormatCatalog#listTables` says that it will throw
`NoSuchDatabaseException` when the database does not exist, I think adding this
here is fine.
Can we use the following `fs.listStatus()` to check if the file exists?
##########
amoro-format-iceberg/src/main/java/org/apache/amoro/formats/mixed/MixedCatalog.java:
##########
@@ -76,9 +77,13 @@ public AmoroTable<?> loadTable(String database, String
table) {
@Override
public List<String> listTables(String database) {
- return catalog.listTables(database).stream()
- .map(TableIdentifier::getTableName)
- .collect(Collectors.toList());
+ try {
+ return catalog.listTables(database).stream()
+ .map(TableIdentifier::getTableName)
+ .collect(Collectors.toList());
+ } catch (NoSuchDatabaseException e) {
+ throw new NoSuchDatabaseException(e, database);
Review Comment:
Why do we catch and retry the original exception here
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