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https://issues.apache.org/jira/browse/FLINK-2182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14577152#comment-14577152
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ASF GitHub Bot commented on FLINK-2182:
---------------------------------------
Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/804#discussion_r31911662
--- Diff:
flink-staging/flink-streaming/flink-streaming-core/src/main/java/org/apache/flink/streaming/api/environment/StreamExecutionEnvironment.java
---
@@ -412,7 +412,7 @@ public void registerType(Class<?> type) {
if (from > to) {
throw new IllegalArgumentException("Start of sequence
must not be greater than the end");
}
- return fromCollection(new NumberSequenceIterator(from, to),
BasicTypeInfo.LONG_TYPE_INFO, "Sequence Source");
+ return addSource(new StatefulSequenceSource(from, to),
"Sequence Source").setParallelism(1);
}
--- End diff --
But why wouldn't we allow the user to explicitly set a higher parallelism.
The call is quite explicit and I think I would be more surprised as a user if
my source did not run in parallel even though I set a higher parallelism.
> Add stateful Streaming Sequence Source
> --------------------------------------
>
> Key: FLINK-2182
> URL: https://issues.apache.org/jira/browse/FLINK-2182
> Project: Flink
> Issue Type: Improvement
> Components: eaming, Streaming
> Reporter: Aljoscha Krettek
> Assignee: Aljoscha Krettek
> Priority: Minor
>
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