[
https://issues.apache.org/jira/browse/HIVE-25057?focusedWorklogId=589173&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-589173
]
ASF GitHub Bot logged work on HIVE-25057:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 26/Apr/21 12:35
Start Date: 26/Apr/21 12:35
Worklog Time Spent: 10m
Work Description: marton-bod commented on a change in pull request #2219:
URL: https://github.com/apache/hive/pull/2219#discussion_r620253478
##########
File path:
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergMetaHook.java
##########
@@ -254,6 +262,32 @@ public void
commitAlterTable(org.apache.hadoop.hive.metastore.api.Table hmsTable
}
}
+ @Override
+ public void rollbackAlterTable(org.apache.hadoop.hive.metastore.api.Table
hmsTable, EnvironmentContext context)
+ throws MetaException {
+ context.getProperties().put(INITIALIZE_ROLLBACK_ALTER, "true");
+ this.catalogProperties = getCatalogProperties(hmsTable);
+ try {
+ this.icebergTable = Catalogs.loadTable(conf, catalogProperties);
+ } catch (NoSuchTableException nte) {
+ // iceberg table was not yet created, no need to delete the metadata dir
separately
+ return;
+ }
+ // we want to keep the data files but get rid of the metadata directory
+ hmsTable.getParameters().put(InputFormatConfig.EXTERNAL_TABLE_PURGE,
"FALSE");
Review comment:
Will this change actually be saved into the HMS db? If so, what if the
original table had this property as true? Should we change it silently here due
to the rollback?
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Issue Time Tracking
-------------------
Worklog Id: (was: 589173)
Time Spent: 1h 40m (was: 1.5h)
> Implement rollback for hive to iceberg migration
> ------------------------------------------------
>
> Key: HIVE-25057
> URL: https://issues.apache.org/jira/browse/HIVE-25057
> Project: Hive
> Issue Type: Improvement
> Reporter: László Pintér
> Assignee: László Pintér
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> This is a follow-up Jira of HIVE-25008.
> In case of an error during hive to iceberg migration, the original hive table
> must be restored.
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