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https://issues.apache.org/jira/browse/HIVE-21109?focusedWorklogId=218863&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-218863
]
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_r269169210
##########
File path:
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java
##########
@@ -2130,11 +2144,18 @@ private void create_table_core(final RawStore ms,
final Table tbl,
// If the table has column statistics, update it into the metastore.
This feature is used
// by replication to replicate table level statistics.
- if (tbl.isSetColStats()) {
- // We do not replicate statistics for a transactional table right now
and hence we do not
- // expect a transactional table to have column statistics here. So
passing null
- // validWriteIds is fine for now.
- updateTableColumnStatsInternal(tbl.getColStats(), null,
tbl.getWriteId());
+ if (colStats != null) {
+ // On replica craft a valid snapshot out of the writeId in the table.
+ long writeId = tbl.getWriteId();
+ String validWriteIds = null;
+ if (writeId > 0) {
+ ValidWriteIdList vwil =
+ new
ValidReaderWriteIdList(TableName.getDbTable(tbl.getDbName(),
Review comment:
Shall add a comment on why the hardcoded validWriteList is used in this flow
instead of taking current state of txns.
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Issue Time Tracking
-------------------
Worklog Id: (was: 218863)
Time Spent: 1h 50m (was: 1h 40m)
> 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 50m
> 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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