Ufuk Celebi created FLINK-5778:
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Summary: Split FileStateHandle into fileName and basePath
Key: FLINK-5778
URL: https://issues.apache.org/jira/browse/FLINK-5778
Project: Flink
Issue Type: Sub-task
Components: State Backends, Checkpointing
Reporter: Ufuk Celebi
Assignee: Ufuk Celebi
Store the statePath as a basePath and a fileName and allow to overwrite the
basePath. We cannot overwrite the base path as long as the state handle is
still in flight and not persisted. Otherwise we risk a resource leak.
We need this in order to be able to relocate savepoints.
{code}
interface RelativeBaseLocationStreamStateHandle {
void clearBaseLocation();
void setBaseLocation(String baseLocation);
}
{code}
FileStateHandle should implement this and the SavepointSerializer should
forward the calls when a savepoint is stored or loaded, clear before store and
set after load.
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