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https://issues.apache.org/jira/browse/FLINK-2292?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14620724#comment-14620724
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ASF GitHub Bot commented on FLINK-2292:
---------------------------------------
Github user StephanEwen commented on a diff in the pull request:
https://github.com/apache/flink/pull/896#discussion_r34270017
--- Diff:
flink-staging/flink-streaming/flink-streaming-core/src/main/java/org/apache/flink/streaming/runtime/io/StreamingAbstractRecordReader.java
---
@@ -57,6 +58,12 @@
private final BarrierBuffer barrierBuffer;
+ /**
+ * Counters for the number of bytes read and records processed.
+ */
+ private LongCounter numRecordsRead = null;
--- End diff --
`null` initializations are actually redundant. They still get executed (for
OpenJDK javac and Oracle javac), so it is actually overhead for no reason.
> Report accumulators periodically while job is running
> -----------------------------------------------------
>
> Key: FLINK-2292
> URL: https://issues.apache.org/jira/browse/FLINK-2292
> Project: Flink
> Issue Type: Sub-task
> Components: JobManager, TaskManager
> Reporter: Maximilian Michels
> Assignee: Maximilian Michels
> Fix For: 0.10
>
>
> Accumulators should be sent periodically, as part of the heartbeat that sends
> metrics. This allows them to be updated in real time.
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