hangc0276 commented on code in PR #4095:
URL: https://github.com/apache/bookkeeper/pull/4095#discussion_r1372732024
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bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/AbstractZkLedgerManagerFactory.java:
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@@ -62,9 +62,11 @@ public void format(AbstractConfiguration<?> conf,
LayoutManager layoutManager)
Class<? extends LedgerManagerFactory> factoryClass;
try {
- factoryClass = conf.getLedgerManagerFactoryClass();
- } catch (ConfigurationException e) {
- throw new IOException("Failed to get ledger manager factory class
from configuration : ", e);
+ factoryClass = (Class<? extends LedgerManagerFactory>)
+
Class.forName(layoutManager.readLedgerLayout().getManagerFactoryClass());
+ } catch (ClassNotFoundException e) {
+ // should not reach here, as LayoutManager was successfully inited
+ throw new IOException("Failed to read ledger manager factory class
from LAYOUT : ", e);
}
layoutManager.deleteLedgerLayout();
Review Comment:
The LAYOUT is `HierarchicalLedgerManager` but the user configuration is
`LongHierarchicalLedgerManagerFactory`, I think we should fail the format.
Otherwise, the user may think the LAYOUT has been formatted to
`LongHierarchicalLedgerManagerFactory`, but actually it doesn't
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