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[GitHub] [pinot] jackjlli opened a new pull request #7752: Handle null segment lineage ZNRecord for getSelectedSegments API

jackjlli opened a new pull request #7752:
URL: https://github.com/apache/pinot/pull/7752


   ## Description
   This PR handles null segment lineage ZNRecord for getSelectedSegments API. When the ZNRecord is null, we don't need to filter any segments and directly return the selected segments to the client side. 
   ## Upgrade Notes
   Does this PR prevent a zero down-time upgrade? (Assume upgrade order: Controller, Broker, Server, Minion)
   * [ ] Yes (Please label as **<code>backward-incompat</code>**, and complete the section below on Release Notes)
   
   Does this PR fix a zero-downtime upgrade introduced earlier?
   * [ ] Yes (Please label this as **<code>backward-incompat</code>**, and complete the section below on Release Notes)
   
   Does this PR otherwise need attention when creating release notes? Things to consider:
   - New configuration options
   - Deprecation of configurations
   - Signature changes to public methods/interfaces
   - New plugins added or old plugins removed
   * [ ] Yes (Please label this PR as **<code>release-notes</code>** and complete the section on Release Notes)
   ## Release Notes
   <!-- If you have tagged this as either backward-incompat or release-notes,
   you MUST add text here that you would like to see appear in release notes of the
   next release. -->
   
   <!-- If you have a series of commits adding or enabling a feature, then
   add this section only in final commit that marks the feature completed.
   Refer to earlier release notes to see examples of text.
   -->
   ## Documentation
   <!-- If you have introduced a new feature or configuration, please add it to the documentation as well.
   See https://docs.pinot.apache.org/developers/developers-and-contributors/update-document
   -->
   


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[GitHub] [pinot] jtao15 commented on pull request #7752: Handle null segment lineage ZNRecord for getSelectedSegments API

Posted by GitBox <gi...@apache.org>.
jtao15 commented on pull request #7752:
URL: https://github.com/apache/pinot/pull/7752#issuecomment-966696596


   LGTM


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[GitHub] [pinot] jackjlli commented on a change in pull request #7752: Handle null segment lineage ZNRecord for getSelectedSegments API

Posted by GitBox <gi...@apache.org>.
jackjlli commented on a change in pull request #7752:
URL: https://github.com/apache/pinot/pull/7752#discussion_r747872845



##########
File path: pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/PinotHelixResourceManager.java
##########
@@ -620,10 +620,14 @@ public String getCrypterClassNameFromTableConfig(String tableNameWithType) {
     // Fetch the segment lineage metadata, and filter segments based on segment lineage.
     ZNRecord segmentLineageZNRecord =
         SegmentLineageAccessHelper.getSegmentLineageZNRecord(_propertyStore, tableNameWithType);

Review comment:
       Updated.




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[GitHub] [pinot] codecov-commenter edited a comment on pull request #7752: Handle null segment lineage ZNRecord for getSelectedSegments API

Posted by GitBox <gi...@apache.org>.
codecov-commenter edited a comment on pull request #7752:
URL: https://github.com/apache/pinot/pull/7752#issuecomment-966702777


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   + Complexity     4064     4063       -1     
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     Files          1577     1531      -46     
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     Branches      11965    11766     -199     
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[GitHub] [pinot] snleee commented on a change in pull request #7752: Handle null segment lineage ZNRecord for getSelectedSegments API

Posted by GitBox <gi...@apache.org>.
snleee commented on a change in pull request #7752:
URL: https://github.com/apache/pinot/pull/7752#discussion_r747882657



##########
File path: pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/PinotHelixResourceManager.java
##########
@@ -618,12 +618,14 @@ public String getCrypterClassNameFromTableConfig(String tableNameWithType) {
       }
     }
     // Fetch the segment lineage metadata, and filter segments based on segment lineage.
-    ZNRecord segmentLineageZNRecord =
-        SegmentLineageAccessHelper.getSegmentLineageZNRecord(_propertyStore, tableNameWithType);
-    SegmentLineage segmentLineage = SegmentLineage.fromZNRecord(segmentLineageZNRecord);
-    Set<String> selectedSegmentSet = new HashSet<>(selectedSegments);
-    SegmentLineageUtils.filterSegmentsBasedOnLineageInPlace(selectedSegmentSet, segmentLineage);
-    return new ArrayList<>(selectedSegmentSet);
+    SegmentLineage segmentLineage = SegmentLineageAccessHelper.getSegmentLineage(_propertyStore, tableNameWithType);
+    if (segmentLineage == null) {

Review comment:
       We don't need to treat `null` separately?
   
   `SegmentLineageUtils.filterSegmentsBasedOnLineageInPlace()` has the null check so `null` case is covered. 
   
   The output with/without this `if (segmentLineage==null)` is the same. So we can remove this if statement.




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[GitHub] [pinot] codecov-commenter commented on pull request #7752: Handle null segment lineage ZNRecord for getSelectedSegments API

Posted by GitBox <gi...@apache.org>.
codecov-commenter commented on pull request #7752:
URL: https://github.com/apache/pinot/pull/7752#issuecomment-966702777


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   =============================================
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   =============================================
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     Lines         80554    78675     -1879     
     Branches      11965    11766      -199     
   =============================================
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[GitHub] [pinot] jackjlli commented on a change in pull request #7752: Handle null segment lineage ZNRecord for getSelectedSegments API

Posted by GitBox <gi...@apache.org>.
jackjlli commented on a change in pull request #7752:
URL: https://github.com/apache/pinot/pull/7752#discussion_r747885616



##########
File path: pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/PinotHelixResourceManager.java
##########
@@ -618,12 +618,14 @@ public String getCrypterClassNameFromTableConfig(String tableNameWithType) {
       }
     }
     // Fetch the segment lineage metadata, and filter segments based on segment lineage.
-    ZNRecord segmentLineageZNRecord =
-        SegmentLineageAccessHelper.getSegmentLineageZNRecord(_propertyStore, tableNameWithType);
-    SegmentLineage segmentLineage = SegmentLineage.fromZNRecord(segmentLineageZNRecord);
-    Set<String> selectedSegmentSet = new HashSet<>(selectedSegments);
-    SegmentLineageUtils.filterSegmentsBasedOnLineageInPlace(selectedSegmentSet, segmentLineage);
-    return new ArrayList<>(selectedSegmentSet);
+    SegmentLineage segmentLineage = SegmentLineageAccessHelper.getSegmentLineage(_propertyStore, tableNameWithType);
+    if (segmentLineage == null) {

Review comment:
       The benefit of having the if check here is to reduce the collection instantiation, ie. we don't have to instantiate one more hash set and then another list if the segment lineage doesn't exist. We should be good here.




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[GitHub] [pinot] jtao15 commented on a change in pull request #7752: Handle null segment lineage ZNRecord for getSelectedSegments API

Posted by GitBox <gi...@apache.org>.
jtao15 commented on a change in pull request #7752:
URL: https://github.com/apache/pinot/pull/7752#discussion_r747869255



##########
File path: pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/PinotHelixResourceManager.java
##########
@@ -620,10 +620,14 @@ public String getCrypterClassNameFromTableConfig(String tableNameWithType) {
     // Fetch the segment lineage metadata, and filter segments based on segment lineage.
     ZNRecord segmentLineageZNRecord =
         SegmentLineageAccessHelper.getSegmentLineageZNRecord(_propertyStore, tableNameWithType);

Review comment:
       Can we reuse `SegmentLineageAccessHelper.getSegmentLineage()` instead?




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[GitHub] [pinot] jackjlli merged pull request #7752: Handle null segment lineage ZNRecord for getSelectedSegments API

Posted by GitBox <gi...@apache.org>.
jackjlli merged pull request #7752:
URL: https://github.com/apache/pinot/pull/7752


   


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