rkhachatryan commented on a change in pull request #18324:
URL: https://github.com/apache/flink/pull/18324#discussion_r789465033
##########
File path:
flink-state-backends/flink-statebackend-changelog/src/main/java/org/apache/flink/state/changelog/ChangelogKeyedStateBackend.java
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@@ -368,19 +372,34 @@ public boolean
deregisterKeySelectionListener(KeySelectionListener<K> listener)
// collections don't change once started and handles are immutable
List<ChangelogStateHandle> prevDeltaCopy =
new
ArrayList<>(changelogStateBackendStateCopy.getRestoredNonMaterialized());
+ long incrementalMaterializeSize = 0L;
if (delta != null && delta.getStateSize() > 0) {
prevDeltaCopy.add(delta);
+ incrementalMaterializeSize += delta.getIncrementalStateSize();
}
if (prevDeltaCopy.isEmpty()
&&
changelogStateBackendStateCopy.getMaterializedSnapshot().isEmpty()) {
return SnapshotResult.empty();
} else {
+ List<KeyedStateHandle> materializedSnapshot =
+ changelogStateBackendStateCopy.getMaterializedSnapshot();
+ for (KeyedStateHandle keyedStateHandle : materializedSnapshot) {
+ if (!lastCompletedHandles.contains(keyedStateHandle)) {
+ incrementalMaterializeSize +=
keyedStateHandle.getStateSize();
Review comment:
The data uploaded during the async phase is (usually) created during the
sync phase. So "Async Persist Checkpoint Data Size" is not very precise. The
current UI does distinguish duration of sync and async phases; also nothing
prevents backend from persisting everything during the sync phase.
Something like "Foreground persist data size" would be more precise, but it
would confuse non-changelog users I guess. WDYT?
So maybe "Sync/async Persist Checkpoint Data Size"?
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