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https://issues.apache.org/jira/browse/TRAFODION-1703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15126569#comment-15126569
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ASF GitHub Bot commented on TRAFODION-1703:
-------------------------------------------
Github user DaveBirdsall commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/296#discussion_r51445704
--- Diff:
core/sqf/src/seatrans/hbase-trx/src/main/java/org/apache/hadoop/hbase/coprocessor/transactional/generated/TrxRegionProtos.java
---
@@ -26558,6 +26558,16 @@ public Builder clearHasException() {
* <code>required int64 auditSeqNum = 4;</code>
*/
long getAuditSeqNum();
+
+ // required bool ageCommitted = 5;
+ /**
+ * <code>required bool ageCommitted = 5;</code>
+ */
+ boolean hasAgeCommitted();
+ /**
+ * <code>required bool ageCommitted = 5;</code>
--- End diff --
What is the point of the repeated <code>required bool ageCommitted =
5;</code> comments? There seems to be several of them.
> Lower overhead in deleting old Tlog entries
> -------------------------------------------
>
> Key: TRAFODION-1703
> URL: https://issues.apache.org/jira/browse/TRAFODION-1703
> Project: Apache Trafodion
> Issue Type: Improvement
> Components: dtm
> Affects Versions: 1.3-incubating
> Reporter: Sean Broeder
> Assignee: Sean Broeder
> Fix For: 1.3-incubating
>
> Original Estimate: 336h
> Remaining Estimate: 336h
>
> Currently, Tlog entries are maintained for a period of time when there is a
> chance they might be needed to help recover from some sort of failure. After
> that widow expires the old records can be deleted.
> The current mechanism starts a scanner on the region which sends every record
> to the client Tlog component where the record is evaluated and if the
> deletion criteria are met a Delete is created and sent back to the region.
> This creates a lot of unnecessary message traffic since none of the contents
> of the record is actually needed by the Tlog component during the maintenance
> operation.
> It would be better to send the deletion criteria to the region so that the
> region itself to perform the necessary housekeeping without sending all the
> data back to the client Tlog component.
> I believe the endpoint coprocessor service could be used to perform this work.
> Comments?
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