swamirishi commented on code in PR #9140:
URL: https://github.com/apache/ozone/pull/9140#discussion_r2467616169
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hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/snapshot/OmSnapshotLocalDataManager.java:
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@@ -62,6 +76,10 @@ public class OmSnapshotLocalDataManager implements
AutoCloseable {
private final MutableGraph<LocalDataVersionNode> localDataGraph;
private final Map<UUID, SnapshotVersionsMeta> versionNodeMap;
private final OMMetadataManager omMetadataManager;
+ // Used for acquiring locks on the entire data structure.
+ private final ReadWriteLock fullLock;
+ // Locks should be always acquired by iterating through the snapshot chain
to avoid deadlocks.
+ private HierarchicalResourceLockManager locks;
public OmSnapshotLocalDataManager(OMMetadataManager omMetadataManager)
throws IOException {
this.localDataGraph = GraphBuilder.directed().build();
Review Comment:
I have made it synchronized
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