jiajunwang commented on code in PR #2189:
URL: https://github.com/apache/helix/pull/2189#discussion_r1028462106
##########
helix-core/src/main/java/org/apache/helix/controller/rebalancer/waged/AssignmentMetadataStore.java:
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@@ -92,60 +93,79 @@ public synchronized Map<String, ResourceAssignment>
getBestPossibleAssignment()
}
/**
- * @return true if a new baseline was persisted.
+ * @param newAssignment
+ * @param path the path of the assignment record
+ * @param key the key of the assignment in the record
* @throws HelixException if the method failed to persist the baseline.
*/
- public synchronized boolean persistBaseline(Map<String, ResourceAssignment>
globalBaseline) {
- return persistAssignment(globalBaseline, getBaseline(), _baselinePath,
BASELINE_KEY);
+ private void persistAssignmentToMetadataStore(Map<String,
ResourceAssignment> newAssignment, String path, String key)
+ throws HelixException {
+ // TODO: Make the write async?
+ // Persist to ZK
+ HelixProperty combinedAssignments = combineAssignments(key, newAssignment);
+ try {
+ _dataAccessor.compressedBucketWrite(path, combinedAssignments);
+ } catch (IOException e) {
+ // TODO: Improve failure handling
+ throw new HelixException(String.format("Failed to persist %s assignment
to path %s", key, path), e);
Review Comment:
I guess that means you can just remove it. Was it referring to some
transactional support that on error, we should keep the data in a consistent
way?
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