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https://issues.apache.org/jira/browse/HIVE-22068?focusedWorklogId=296728&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-296728
]
ASF GitHub Bot logged work on HIVE-22068:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 17/Aug/19 04:54
Start Date: 17/Aug/19 04:54
Worklog Time Spent: 10m
Work Description: sankarh commented on pull request #742: HIVE-22068 :
Add more logging to notification cleaner and replication to track events
URL: https://github.com/apache/hive/pull/742#discussion_r314934579
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/exec/repl/ReplLoadTask.java
##########
@@ -522,6 +525,25 @@ private int executeIncrementalLoad(DriverContext
driverContext) {
// bootstrap of tables if exist.
if (builder.hasMoreWork() || work.getPathsToCopyIterator().hasNext() ||
work.hasBootstrapLoadTasks()) {
DAGTraversal.traverse(childTasks, new
AddDependencyToLeaves(TaskFactory.get(work, conf)));
+ } else if (work.dbNameToLoadIn != null) {
+ // Nothing to be done for repl load now. Add a task to update the
last.repl.id of the
+ // target database to the event id of the last event considered by the
dump. Next
+ // incremental cycle if starts from this id, the events considered for
this dump, won't
+ // be considered again. If we are replicating to multiple databases at
a time, it's not
+ // possible to know which all databases we are replicating into and
hence we can not
+ // update repl id in all those databases.
+ String lastEventid = builder.eventTo().toString();
Review comment:
OK
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Issue Time Tracking
-------------------
Worklog Id: (was: 296728)
Time Spent: 1.5h (was: 1h 20m)
> Return the last event id dumped as repl status to avoid notification event
> missing error.
> -----------------------------------------------------------------------------------------
>
> Key: HIVE-22068
> URL: https://issues.apache.org/jira/browse/HIVE-22068
> Project: Hive
> Issue Type: Improvement
> Reporter: Ashutosh Bapat
> Assignee: Ashutosh Bapat
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-22068.01.patch, HIVE-22068.02.patch,
> HIVE-22068.03.patch, HIVE-22068.04.patch, HIVE-22068.05.patch
>
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> In repl load, update the status of target database to the last event dumped
> so that repl status returns that and next incremental can specify it as the
> event from which to start the dump. WIthout that repl status might return and
> old event which might cause, older events to be dumped again and/or a
> notification event missing error if the older events are cleaned by the
> cleaner.
> While at it
> * Add more logging to DB notification listener cleaner thread
> ** The time when it considered cleaning, the interval and time before which
> events were cleared, the min and max id at that time
> ** how many events were cleared
> ** min and max id after the cleaning.
> * In REPL::START document the starting event, end event if specified and the
> maximum number of events, if specified.
> *
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