zabetak commented on code in PR #4859:
URL: https://github.com/apache/hive/pull/4859#discussion_r1497657015
##########
ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/InitiatorBase.java:
##########
@@ -50,59 +49,53 @@
import java.io.IOException;
import java.security.PrivilegedExceptionAction;
-import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
public class InitiatorBase extends MetaStoreCompactorThread {
static final private String COMPACTOR_THRESHOLD_PREFIX =
"compactorthreshold.";
- private List<CompactionResponse>
initiateCompactionForMultiplePartitions(Table table,
- Map<String, Partition> partitions, CompactionRequest request) {
- List<CompactionResponse> compactionResponses = new ArrayList<>();
- partitions.entrySet().parallelStream().forEach(entry -> {
- try {
- StorageDescriptor sd = CompactorUtil.resolveStorageDescriptor(table,
entry.getValue());
- String runAs = TxnUtils.findUserToRunAs(sd.getLocation(), table, conf);
- CompactionInfo ci =
- new CompactionInfo(table.getDbName(), table.getTableName(),
entry.getKey(), request.getType());
- ci.initiatorId = request.getInitiatorId();
- ci.orderByClause = request.getOrderByClause();
- ci.initiatorVersion = request.getInitiatorVersion();
- if (request.getNumberOfBuckets() > 0) {
- ci.numberOfBuckets = request.getNumberOfBuckets();
- }
- ci.poolName = request.getPoolName();
- LOG.info(
- "Checking to see if we should compact partition " + entry.getKey()
+ " of table " + table.getDbName() + "."
- + table.getTableName());
- CollectionUtils.addIgnoreNull(compactionResponses,
- scheduleCompactionIfRequired(ci, table, entry.getValue(), runAs,
false));
- } catch (IOException | InterruptedException | MetaException e) {
- LOG.error(
- "Error occurred while Checking if we should compact partition " +
entry.getKey() + " of table " + table.getDbName() + "."
- + table.getTableName() + " Exception: " + e.getMessage());
- throw new RuntimeException(e);
- }
- });
- return compactionResponses;
- }
-
- public List<CompactionResponse> initiateCompactionForTable(CompactionRequest
request, Table table, Map<String, Partition> partitions) throws Exception {
+ public void initialize() throws Exception {
+ super.init(new AtomicBoolean());
Review Comment:
The latest patch changes the behavior of `Initiator` forcing the latter to
retrieve and set a `validTxnList` during initialization something that wasn't
done before. I reviewed related code in `Initiator` class and the change
appears safe but in general it is best to avoid such refactorings that
implicitly change the behavior of the code.
@tarak271 Did you double check that there are no undesired effects from this
change in behavior? If yes then we can proceed and merge this PR.
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