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Posted to issues@spark.apache.org by "Saisai Shao (JIRA)" <ji...@apache.org> on 2018/05/04 08:04:00 UTC
[jira] [Resolved] (SPARK-24136) MemoryStreamDataReader.next should
skip sleeping if record is available
[ https://issues.apache.org/jira/browse/SPARK-24136?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Saisai Shao resolved SPARK-24136.
---------------------------------
Resolution: Fixed
Fix Version/s: 2.4.0
Issue resolved by pull request 21207
[https://github.com/apache/spark/pull/21207]
> MemoryStreamDataReader.next should skip sleeping if record is available
> -----------------------------------------------------------------------
>
> Key: SPARK-24136
> URL: https://issues.apache.org/jira/browse/SPARK-24136
> Project: Spark
> Issue Type: Improvement
> Components: Structured Streaming
> Affects Versions: 2.4.0
> Reporter: Arun Mahadevan
> Priority: Minor
> Fix For: 2.4.0
>
>
> Currently the code sleeps 10ms for each invocation of the next even if the record is available.
> {code:java}
> override def next(): Boolean = {
> current = None
> while (current.isEmpty) {
> Thread.sleep(10)
> current = endpoint.askSync[Option[Row]](
> GetRecord(ContinuousMemoryStreamPartitionOffset(partition, currentOffset)))
> }{code}
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