rayman7718 commented on a change in pull request #1580:
URL: https://github.com/apache/samza/pull/1580#discussion_r809602335
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File path:
samza-core/src/main/java/org/apache/samza/container/grouper/stream/GroupBySystemStreamPartition.java
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@@ -50,9 +53,20 @@ public GroupBySystemStreamPartition(Config config) {
continue;
}
- HashSet<SystemStreamPartition> sspSet = new
HashSet<SystemStreamPartition>();
- sspSet.add(ssp);
- groupedMap.put(new TaskName(ssp.toString()), sspSet);
+ // if elasticity factor > 1 then elasticity is enabled
+ // for each ssp create ElasticityFactor number of tasks
+ // i.e; result will have number of tasks = ElasticityFactor X number of
SSP
+ // each task will have name SSP[system,stream,partition,keyBucket]
keyBucket <= elasticityFactor
+ // each task portion correspdnding to keyBucket of the SSP.
+ // #todo: add the elasticity ticket for more details?
+ if (elasticityFactor > 1) {
+ for (int i = 0; i < elasticityFactor; i++) {
+ SystemStreamPartition sspWithKeyBucket = new
SystemStreamPartition(ssp, i);
Review comment:
same as aboev
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