public RocksDBKeyedStateBackend(
JobID jobId,
String operatorIdentifier,
ClassLoader userCodeClassLoader,
File instanceBasePath,
DBOptions dbOptions,
ColumnFamilyOptions columnFamilyOptions,
TaskKvStateRegistry kvStateRegistry,
TypeSerializer<K> keySerializer,
int numberOfKeyGroups,
KeyGroupRange keyGroupRange,
Collection<KeyGroupsStateHandle> restoreState)
throws Exception {
this(
jobId,
operatorIdentifier,
userCodeClassLoader,
instanceBasePath,
dbOptions,
columnFamilyOptions,
kvStateRegistry,
keySerializer,
numberOfKeyGroups,
keyGroupRange);
LOG.info("Initializing RocksDB keyed state backend from snapshot.");
if (LOG.isDebugEnabled()) {
LOG.debug("Restoring snapshot from state handles: {}.", restoreState);
}
try {
if (MigrationUtil.isOldSavepointKeyedState(restoreState)) {
LOG.info("Converting RocksDB state from old savepoint.");
restoreOldSavepointKeyedState(restoreState);
} else {
RocksDBRestoreOperation restoreOperation = new RocksDBRestoreOperation(this);
restoreOperation.doRestore(restoreState);
}
} catch (Exception ex) {
dispose();
throw ex;
}
}
