sankarh commented on a change in pull request #579: HIVE-21109 : Support stats
replication for ACID tables.
URL: https://github.com/apache/hive/pull/579#discussion_r269136269
##########
File path:
ql/src/java/org/apache/hadoop/hive/ql/parse/ImportSemanticAnalyzer.java
##########
@@ -1247,17 +1244,37 @@ private static void createReplImportTasks(
} else if (!replicationSpec.isMetadataOnly()
&& !shouldSkipDataCopyInReplScope(tblDesc, replicationSpec)) {
x.getLOG().debug("adding dependent CopyWork/MoveWork for table");
- t.addDependentTask(loadTable(fromURI, table,
replicationSpec.isReplace(),
- new Path(tblDesc.getLocation()), replicationSpec, x, writeId,
stmtId));
+ dependentTasks = new ArrayList<>(1);
+ dependentTasks.add(loadTable(fromURI, table,
replicationSpec.isReplace(),
+ new Path(tblDesc.getLocation()),
replicationSpec,
+ x, writeId, stmtId));
}
- if (dropTblTask != null) {
- // Drop first and then create
- dropTblTask.addDependentTask(t);
- x.getTasks().add(dropTblTask);
+ // During replication, by the time we reply a commit transaction event,
the table should
+ // have been already created when replaying previous events. So no need
to create table
+ // again. For some reason we need create table task for partitioned
table though.
Review comment:
The comment says for partitioned table, create table task needed but in the
code it is skipped always for commit txn event. Which one is correct?
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