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https://issues.apache.org/jira/browse/FLINK-12187?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Metzger resolved FLINK-12187.
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Resolution: Fixed
Fix Version/s: 1.9.0
Merged in
https://github.com/apache/flink/commit/ca8145e54607aa46b275d09e785e7c1653f0181c
> wrap FileWriter with BufferedWriter for better performance
> ----------------------------------------------------------
>
> Key: FLINK-12187
> URL: https://issues.apache.org/jira/browse/FLINK-12187
> Project: Flink
> Issue Type: Bug
> Components: Examples
> Reporter: bd2019us
> Priority: Major
> Labels: patch-available, pull-request-available,
> pull-requests-available
> Fix For: 1.9.0
>
> Attachments: 1.patch
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Location:
> src/main/java/org/apache/flink/examples/java/relational/util/WebLogDataGenerator.java
> The FileWriter.write() method is invoked multiple times in loops, which is
> bad to the performance of program. The decorator class BufferedWriter can be
> used to alleviate the impact of frequent IO operation with caches. Therefore,
> when the write() method is intensively used, the BufferedWriter is highly
> recommended and should be preferred.
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