Sihua Zhou created FLINK-9174:
---------------------------------
Summary: The type of state created in
ProccessWindowFunction.proccess() is inconsistency
Key: FLINK-9174
URL: https://issues.apache.org/jira/browse/FLINK-9174
Project: Flink
Issue Type: Bug
Components: State Backends, Checkpointing
Affects Versions: 1.5.0
Reporter: Sihua Zhou
Assignee: Sihua Zhou
Fix For: 1.5.0
The type of state created from windowState and globalState in
{{ProcessWindowFunction.process()}} is inconsistency. For detail,
{code}
context.windowState().getListState(); // return type is HeapListState or
RocksDBListState
context.globalState().getListState(); // return type is UserFacingListState
{code}
This cause the problem in the following code,
{code}
Iterable<T> iterableState = listState.get();
if (terableState.iterator().hasNext()) {
for (T value : iterableState) {
value.setRetracting(true);
collector.collect(value);
}
state.clear();
}
{code}
If the {{listState}} is created from {{context.globalState()}} is fine, but
when it created from {{context.windowState()}} this will cause NPE. I met this
in 1.3.2 but I found it also affect 1.5.0.
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