sjwiesman commented on a change in pull request #13912:
URL: https://github.com/apache/flink/pull/13912#discussion_r574065708
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File path:
flink-core/src/main/java/org/apache/flink/configuration/CheckpointingOptions.java
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@@ -27,22 +29,70 @@
// general checkpoint and state backend options
// ------------------------------------------------------------------------
- /** The state backend to be used to store and checkpoint state. */
+ /**
+ * The checkpoint storage used to store state.
+ *
+ * <p>The implementation can be specified either via their shortcut name,
or via the class name
+ * of a {@code StateBackendFactory}. If a StateBackendFactory class name
is specified, the
+ * factory is instantiated (via its zero-argument constructor) and its
{@code
+ * StateBackendFactory#createFromConfig(ReadableConfig, ClassLoader)}
method is called.
+ *
+ * <p>Recognized shortcut names are 'hashmap' and 'rocksdb'.
+ */
Review comment:
I've expanded on the javadoc but this is about the statebackend.
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