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https://issues.apache.org/jira/browse/HIVE-25397?focusedWorklogId=663874&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-663874
]
ASF GitHub Bot logged work on HIVE-25397:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 12/Oct/21 04:59
Start Date: 12/Oct/21 04:59
Worklog Time Spent: 10m
Work Description: ArkoSharma commented on a change in pull request #2539:
URL: https://github.com/apache/hive/pull/2539#discussion_r726761398
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/exec/repl/ReplDumpTask.java
##########
@@ -1105,17 +1105,13 @@ Long bootStrapDump(Path dumpRoot, DumpMetaData dmd,
Path cmRoot, Hive hiveDb)
boolean isExternalTablePresent = false;
String snapshotPrefix = dbName.toLowerCase();
- ArrayList<String> prevSnaps = new ArrayList<>(); // Will stay empty
in case of bootstrap
+ ArrayList<String> prevSnaps = new ArrayList<>();
if (isSnapshotEnabled) {
- // Delete any old existing snapshot file, We always start fresh in
case of bootstrap.
-
FileUtils.deleteIfExists(getDFS(SnapshotUtils.getSnapshotFileListPath(dumpRoot),
conf),
- new Path(SnapshotUtils.getSnapshotFileListPath(dumpRoot),
- EximUtil.FILE_LIST_EXTERNAL_SNAPSHOT_CURRENT));
-
FileUtils.deleteIfExists(getDFS(SnapshotUtils.getSnapshotFileListPath(dumpRoot),
conf),
Review comment:
The 'current' one needs to be preserved in order to facilitate reusing
snapshots while resuming bootstrap from the same directory (case discussed
above). The 'old' one needs has been deleted.
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Issue Time Tracking
-------------------
Worklog Id: (was: 663874)
Time Spent: 3h (was: 2h 50m)
> Snapshot support for controlled failover
> ----------------------------------------
>
> Key: HIVE-25397
> URL: https://issues.apache.org/jira/browse/HIVE-25397
> Project: Hive
> Issue Type: Bug
> Reporter: Arko Sharma
> Assignee: Arko Sharma
> Priority: Major
> Labels: pull-request-available
> Time Spent: 3h
> Remaining Estimate: 0h
>
> In case the same locations are used for external tables on the source and
> target, then the snapshots created during replication can be re-used during
> reverse replication. This patch enables re-using the snapshots during
> reverse replication using a configuration.
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