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https://issues.apache.org/jira/browse/HADOOP-18896?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheng Pan resolved HADOOP-18896.
--------------------------------
Assignee: Anshu Singh
Resolution: Fixed
> NegativeArraySizeException thrown in FSOutputSummer.java given large
> file.bytes-per-checksum
> --------------------------------------------------------------------------------------------
>
> Key: HADOOP-18896
> URL: https://issues.apache.org/jira/browse/HADOOP-18896
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 3.3.6
> Reporter: rstest
> Assignee: Anshu Singh
> Priority: Critical
> Labels: pull-request-available
> Fix For: 3.4.4, 3.5.1, 3.6.0
>
>
> Buffer size of FSOutputSummer equals to `file.bytes-per-checksum` times
> `BUFFER_NUM_CHUNKS`. A large `file.bytes-per-checksum` causes buffer size to
> overflow and crash with NegativeArraySizeException.
> To reproduce:
> 1. set `file.bytes-per-checksum` to 238609295
> 2. `mvn surefire:test
> -Dtest=org.apache.hadoop.hdfs.TestDecommissionWithStriped#testFileSmallerThanOneStripe`
> We created a PR that provides a fix which checks the buffer size is positive
> after multiplying `file.bytes-per-checksum` with `BUFFER_NUM_CHUNKS`
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