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https://issues.apache.org/jira/browse/FLINK-5041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15725651#comment-15725651
]
ASF GitHub Bot commented on FLINK-5041:
---------------------------------------
Github user StephanEwen commented on a diff in the pull request:
https://github.com/apache/flink/pull/2781#discussion_r91086437
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/state/heap/HeapKeyedStateBackend.java
---
@@ -346,4 +359,130 @@ public String toString() {
return "HeapKeyedStateBackend";
}
+ /**
+ * REMOVE
+ */
+ @Internal
+ @Deprecated
+ public Map<String, StateTable<K, ?, ?>> getStateTables() {
+ return stateTables;
+ }
+
+ @Deprecated
+ private void restoreOldSavepointKeyedState(
+ Collection<KeyGroupsStateHandle> stateHandles) throws
IOException, ClassNotFoundException {
+
+ if (stateHandles.isEmpty()) {
+ return;
+ }
+
+ HashMap<String, KvStateSnapshot<K, ?, ?, ?>> namedStates =
+
InstantiationUtil.deserializeObject(stateHandles.iterator().next().openInputStream(),
userCodeClassLoader);
+
+ for (Map.Entry<String, KvStateSnapshot<K, ?, ?, ?>> nameToState
: namedStates.entrySet()) {
+
+ KvStateSnapshot<K, ?, ?, ?> genericSnapshot =
nameToState.getValue();
+
+ final RestoredState restoredState;
+
+ if (genericSnapshot instanceof
AbstractMemStateSnapshot) {
+
+ AbstractMemStateSnapshot<K, ?, ?, ?, ?>
stateSnapshot =
+ (AbstractMemStateSnapshot<K, ?,
?, ?, ?>) nameToState.getValue();
+
+ restoredState = restoreHeapState(stateSnapshot);
+
+ } else if (genericSnapshot instanceof
AbstractFsStateSnapshot) {
+
+ AbstractFsStateSnapshot<K, ?, ?, ?, ?>
stateSnapshot =
+ (AbstractFsStateSnapshot<K, ?,
?, ?, ?>) nameToState.getValue();
+ restoredState = restoreFsState(stateSnapshot);
+ } else {
+ throw new IllegalStateException("Unknown state:
" + genericSnapshot);
+ }
+
+ Map rawResultMap = restoredState.getRawResultMap();
+ TypeSerializer<?> namespaceSerializer =
restoredState.getNamespaceSerializer();
+ TypeSerializer<?> stateSerializer =
restoredState.getStateSerializer();
+
+ if (namespaceSerializer instanceof VoidSerializer) {
+ namespaceSerializer =
VoidNamespaceSerializer.INSTANCE;
+ }
+
+ Map nullNameSpaceFix = (Map) rawResultMap.remove(null);
--- End diff --
This looks like it should be guarded by a test ;-)
> Implement savepoint backwards compatibility 1.1 -> 1.2
> ------------------------------------------------------
>
> Key: FLINK-5041
> URL: https://issues.apache.org/jira/browse/FLINK-5041
> Project: Flink
> Issue Type: New Feature
> Components: State Backends, Checkpointing
> Affects Versions: 1.2.0
> Reporter: Stefan Richter
> Assignee: Stefan Richter
>
> This issue tracks the implementation of backwards compatibility between Flink
> 1.1 and 1.2 releases.
> This task subsumes:
> - Converting old savepoints to new savepoints, including a conversion of
> state handles to their new replacement.
> - Converting keyed state from old backend implementations to their new
> counterparts.
> - Converting operator and function state for all changed operators.
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