Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/3143#discussion_r96476317
--- Diff:
flink-contrib/flink-statebackend-rocksdb/src/main/java/org/apache/flink/contrib/streaming/state/AbstractRocksDBState.java
---
@@ -132,55 +132,95 @@ public void setCurrentNamespace(N namespace) {
namespaceSerializer);
int keyGroup = KeyGroupRangeAssignment.assignToKeyGroup(des.f0,
backend.getNumberOfKeyGroups());
- writeKeyWithGroupAndNamespace(keyGroup, des.f0, des.f1);
- return backend.db.get(columnFamily,
keySerializationStream.toByteArray());
+
+ // we cannot reuse the keySerializationStream member since this
method
+ // is called concurrently to the other ones and it may this
contain garbage
--- End diff --
this -> thus?
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