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https://issues.apache.org/jira/browse/HIVE-21109?focusedWorklogId=218858&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-218858
]
ASF GitHub Bot logged work on HIVE-21109:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 26/Mar/19 18:58
Start Date: 26/Mar/19 18:58
Worklog Time Spent: 10m
Work Description: sankarh commented on 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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Issue Time Tracking
-------------------
Worklog Id: (was: 218858)
Time Spent: 1h 10m (was: 1h)
> Stats replication for ACID tables.
> ----------------------------------
>
> Key: HIVE-21109
> URL: https://issues.apache.org/jira/browse/HIVE-21109
> Project: Hive
> Issue Type: Sub-task
> Reporter: Ashutosh Bapat
> Assignee: Ashutosh Bapat
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-21109.01.patch, HIVE-21109.02.patch,
> HIVE-21109.03.patch, HIVE-21109.04.patch, HIVE-21109.05.patch,
> HIVE-21109.06.patch
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> Transactional tables require a writeID associated with the stats update. This
> writeId needs to be in sync with the writeId on the source and hence needs to
> be replicated from the source.
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