cadonna commented on code in PR #14852:
URL: https://github.com/apache/kafka/pull/14852#discussion_r1413468864
##########
streams/src/main/java/org/apache/kafka/streams/state/internals/RocksDBTimestampedStore.java:
##########
@@ -64,31 +62,14 @@ public RocksDBTimestampedStore(final String name,
@Override
void openRocksDB(final DBOptions dbOptions,
final ColumnFamilyOptions columnFamilyOptions) {
- final List<ColumnFamilyDescriptor> columnFamilyDescriptors = asList(
- new ColumnFamilyDescriptor(RocksDB.DEFAULT_COLUMN_FAMILY,
columnFamilyOptions),
- new
ColumnFamilyDescriptor("keyValueWithTimestamp".getBytes(StandardCharsets.UTF_8),
columnFamilyOptions));
- final List<ColumnFamilyHandle> columnFamilies = new
ArrayList<>(columnFamilyDescriptors.size());
-
- try {
- db = RocksDB.open(dbOptions, dbDir.getAbsolutePath(),
columnFamilyDescriptors, columnFamilies);
- setDbAccessor(columnFamilies.get(0), columnFamilies.get(1));
- } catch (final RocksDBException e) {
- if ("Column family not found:
keyValueWithTimestamp".equals(e.getMessage())) {
- try {
- db = RocksDB.open(dbOptions, dbDir.getAbsolutePath(),
columnFamilyDescriptors.subList(0, 1), columnFamilies);
-
columnFamilies.add(db.createColumnFamily(columnFamilyDescriptors.get(1)));
- } catch (final RocksDBException fatal) {
- throw new ProcessorStateException("Error opening store " +
name + " at location " + dbDir.toString(), fatal);
- }
- setDbAccessor(columnFamilies.get(0), columnFamilies.get(1));
- } else {
- throw new ProcessorStateException("Error opening store " +
name + " at location " + dbDir.toString(), e);
- }
- }
- }
+ final List<ColumnFamilyHandle> columnFamilies = openRocksDB(
+ dbOptions,
+ new ColumnFamilyDescriptor(RocksDB.DEFAULT_COLUMN_FAMILY,
columnFamilyOptions),
+ new
ColumnFamilyDescriptor("keyValueWithTimestamp".getBytes(StandardCharsets.UTF_8),
columnFamilyOptions)
Review Comment:
IMO, it would fine to have a public constant for the name of the column
family in `RocksDBTimestampedStore` since this column family only applies to
this class and its tests. For the other more generic column family that you are
going to add, I would say `RocksDBStore` is the right place.
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